Switch driving device and small-angle switch

Abstract

The utility model relates to the technical field of key switches, and discloses a switch driving device, which comprises a switch pressing plate and a shifting piece, the switch pressing plate comprises a main plate and a clamp arm base, the clamp arm base is installed on the back face of the main plate, and a clamp arm is arranged at the end, away from the main plate, of the clamp arm base. The shifting piece comprises a pressing piece and a swing cavity for containing the clamp arms, an installation sleeve extending outwards is arranged in the middle of the swing cavity, the pressing piece is installed in the installation sleeve, and the front end of the pressing piece is connected with the switch warped piece in an abutting mode. The utility model also discloses a small-angle switch, which comprises a rear cover, a switch wiring device and a switch driving device, the switch wiring device comprises a wiring assembly and a switch fin connected with the wiring assembly, the wiring assembly is installed in the rear cover, and the middle of the switch fin abuts against the switch driving device. The switch driving device is in swing connection with the base. According to the utility model, the miniaturization of the switch is facilitated and the service life of the switch is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to key switch technical field especially relates to a switch drive arrangement and small angle switch. BACKGROUND

[0002] Wall switch is one of the most common electrician products in daily life, wherein, most wall switches adopt rocker switch structure. The traditional rocker type structure wall switch mainly includes: switch shell, key rocker, swing lever, metal rocker with contact point and metal wiring terminal, the cooperation mode of key rocker and swing lever is that the swing lever is directly reversed and driven by the fixed motion axis of key rocker back buckle, when the user needs to turn on the light, the contact point of metal rocker and the contact point of metal wiring terminal are connected or disconnected by touching key rocker, realizing the connection or disconnection of switch.

[0003] However, the traditional switch drives the metal rocker by using the pressing force of transmission mode, and the structure needs large angle driving stroke to make the switch work, the large angle driving stroke is not conducive to the miniaturization of switch, and the large angle driving stroke will cause the relative motion amplitude between parts to increase, thereby aggravating mechanical wear and affecting the service life of switch. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a switch drive arrangement and small angle switch, which aims to solve the above technical problems in the background art.

[0005] To achieve the above purpose, the utility model provides a switch drive arrangement, which comprises: switch press plate and poking part.

[0006] The switch press plate comprises main plate and pincer arm base, the pincer arm base is installed on the back of the main plate, and the end of the pincer arm base away from the main plate is provided with pincer arm.

[0007] The poking part comprises pressing part and swing cavity accommodating the pincer arm, the middle part of the swing cavity is provided with outwardly extending mounting sleeve, the pressing part is installed in the mounting sleeve, and the front end of the pressing part abuts against switch rocker.

[0008] Preferably, the front end of the pincer arm is provided with boss.

[0009] Preferably, the swing cavity comprises accommodating part, the two sides of the opening of the accommodating part are respectively provided with pressing arm, the pincer arm is inserted into the inner cavity of the accommodating part and abuts against the two sides of the mounting sleeve.

[0010] Preferably, the interior of the mounting sleeve is provided with a spring mounting seat; the pressing piece comprises a spring and a pressure head, one end of the spring is connected with the spring mounting seat, and the other end of the spring is sleeved with the pressure head.

[0011] In addition, the utility model still provides a small angle switch, include: back cover, switch wiring device and switch drive device as any preceding, the switch wiring device includes wiring assembly and switch tab connected with wiring assembly, wiring assembly installs in back cover, the middle part of switch tab is with switch drive device abuts, switch drive device is with base swing connection.

[0012] Preferably, the switch further comprises a support seat, one end of the support seat is rotatably connected with the switch press plate, the other end of the support seat is connected with the wiring assembly, and the actuating member is inserted in the support seat.

[0013] Preferably, the actuating member is symmetrically provided with a movable shaft on both sides, and the support seat is provided with a clamping groove corresponding to the position of the movable shaft in the interior.

[0014] Preferably, the switch tab is a boat-shaped tab; the wiring assembly comprises a first wiring terminal, a second wiring terminal and a common wiring terminal; the first wiring terminal comprises a first electric contact piece and a first wiring sleeve for fixing the first electric contact piece, the second wiring terminal comprises a second electric contact piece and a second wiring sleeve for fixing the second electric contact piece, and the common wiring terminal comprises a power contact piece and a third wiring sleeve for fixing the power contact piece; the boat-shaped tab is arranged between the first electric contact piece and the second electric contact piece, the middle bottom surface of the boat-shaped tab abuts against the power contact piece, and the boat-shaped tab swings to contact or separate from the first electric contact piece and the second electric contact piece to realize the conduction or disconnection of the switch circuit.

[0015] Preferably, the back surface of the main plate is provided with a pair of mounting brackets, the two sides of the support seat are provided with mounting shafts matched with the mounting brackets, and the mounting brackets are clamped with the mounting shafts.

[0016] Preferably, the back cover is provided with a key mounting groove, the switch press plate is provided with a mounting frame matched with the key mounting groove, the back surface of the switch press plate is provided with a pair of swing limiting blocks along the first central axis direction of the mounting frame, the mounting frame is clamped and mounted in the key mounting groove and limited by the pair of swing limiting blocks.

[0017] The aforementioned switch drive device and small-angle switch, when the switch button is pressed, the clamp arm base and the clamp arm on the clamp arm base swing at a small angle with the switch button. Since the rotation axis of the switch button and the toggle component are different, the angle is magnified, causing the toggle component to swing significantly, thereby driving the switch lever to swing to both ends, realizing the conduction or disconnection of the switch circuit, which is beneficial to the miniaturization of the switch and the improvement of the switch's service life. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the switch driving device in one embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the switch driving device in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the rotation axis of the switch drive device in one embodiment of the present invention;

[0021] Figure 4 for Figure 1 Schematic diagram of the toggle element of the switch drive device Figure 1 ;

[0022] Figure 5 for Figure 1 Schematic diagram of the toggle element of the switch drive device Figure 2 ;

[0023] Figure 6 A three-dimensional structural diagram of a small-angle switch according to an embodiment of this utility model;

[0024] Figure 7 This is an exploded view of a small-angle switch according to an embodiment of the present invention;

[0025] Figure 8 for Figure 1 A schematic diagram of the support base for small and medium angle switches.

[0026] The serial numbers in the diagram are explained as follows:

[0027] 1. Switch button; 11. Main board; 12. Clamp arm base; 13. Clamp arm; 131. Boss; 14. Mounting bracket; 15. Mounting frame; 16. Swing limit block; 2. Toggle component; 21. Swing cavity; 211. Receiving part; 212. Pressure arm; 22. Pressing component; 221. Spring; 222. Pressure head; 23. Mounting sleeve; 231. Spring mounting seat; 24. Movable shaft; 3. Rear cover; 4. Switch wiring device; 41. First terminal; 42. Second terminal; 43. Common terminal; 44. Switch lever; 5. Support base; 51. Slot; 52. Mounting shaft. Detailed Implementation

[0028] In order to better understand the above technical solutions, the exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0029] It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0030] It should be noted that in the embodiments of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the coordinate system shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or parts referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two parts. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0033] The present application provides a switch driving device, which refers to Figure 1 and Figure 2In the first embodiment, the switch driving device includes: a switch button 1 and a toggle member 2; the switch button 1 includes a main board 11 and a clamp arm base 12, the clamp arm base 12 is installed on the back of the main board 11, and a clamp arm 13 is provided at one end of the clamp arm base 12 away from the main board 11; the toggle member 2 includes a pressing member 22 and a swing cavity 21 for accommodating the clamp arm 13, and an outwardly extending mounting sleeve 23 is provided in the middle of the swing cavity 21, the pressing member 22 is installed in the mounting sleeve 23, and the front end of the pressing member 22 abuts against the switch lever 44.

[0034] More specifically, the switch driving device of this embodiment includes a swingable switch plate 1 and a toggle member 2 for driving the switch lever 44 to swing to both ends. The switch plate 1 includes a main board 11, with a clamp arm base 12 on its back. A pair of clamp arms 13 are provided at the front end of the clamp arm base 12. These clamp arms 13 are inserted into the inner cavity of the toggle member 2 and cooperate with the toggle member 2 to drive its swing. Preferably, the main board 11, the clamp arm base 12, and the clamp arms 13 are integrally formed.

[0035] The toggle member 2 includes a swing cavity 21. A mounting sleeve 23 is provided at the front end of the swing cavity 21. A part of the mounting sleeve 23 can be disposed in the inner cavity of the swing cavity 21 for clamping by the clamp arm 13. A pressing member 22 that abuts against the switch lever 44 is provided inside the mounting sleeve 23.

[0036] Understandably, in this embodiment of the switch drive device, the clamp arm base 12 and the clamp arm 13 on the clamp arm base 12 swing with the main board 11, and the toggle member 2 connected to the clamp arm 13 swings with the swing of the clamp arm 13. Furthermore, the rotation axes of the switch button 1 and the toggle member 2 are different. (Refer to...) Figure 3 The diagram shown illustrates the axis of rotation. Figure 3 In this configuration, O1 is the rotation axis of the switch button 1, and O2 is the rotation axis of the toggle element 2, thus achieving the effect of angle magnification. Secondly, in... Figure 3 In the diagram, h1 is the vertical distance from the rotation axis O1 of the switch button 1 to the connection point between the clamp arm 13 and the toggle member 2, and h2 is the vertical distance from the rotation axis O2 of the toggle member 2 to the connection point between the rotation axis and the clamp arm 13 and the toggle member 2. The length ratio of h1 to h2 is the angle ratio. The rotation axis O1 of the switch button 1 is determined based on the rotational connection between the switch button 1 and the support base 5 (preferably the mounting bracket 14), and the rotation axis O2 of the toggle member 2 is determined based on the movable connection between the toggle member 2 and the support base 5 (preferably the movable shaft 24).

[0037] In conclusion, when the switch press plate 1 is pressed, the jaw base 12 and the jaw 13 on the jaw base 12 swing with the switch press plate 1 at a small angle, and then swing at a large angle through angle amplification, thereby driving the toggle 2 to swing at a large angle, driving the switch tab 44 to swing to both ends, realizing the conduction or break of the switch circuit, which is beneficial to the miniaturization of the switch and the improvement of the service life of the switch.

[0038] In a preferred embodiment, referring to Figure 2 , the front end of the jaw 13 is provided with a boss 131.

[0039] It can be understood that the jaw 13 of the embodiment is inserted into the inner cavity of the toggle 2, and the front end of the jaw 13 is symmetrically provided with a pair of bosses 131. The bosses 131 can increase the friction between the jaw 13 and the clamped object (i.e., the mounting sleeve 23), so that the clamping is more stable.

[0040] In a preferred embodiment, referring to Figure 2 , Figure 4 and Figure 5 , the swing cavity 21 includes a containing portion 211 surrounded by two oppositely arranged side plates, and the containing portion 211 is provided with a pressing arm 212 on each side of the opening; the jaw 13 is inserted into the containing portion 211 and abuts against the two sides of the mounting sleeve 23.

[0041] In the embodiment, the swing cavity 21 includes the containing portion 211 and the pressing arms 212 arranged on both sides of the opening of the containing portion 211. The pressing arms 212 correspond to the positions of the jaw base 12. The jaw 13 on the jaw base 12 is inserted into the inner cavity of the containing portion 211 and abuts against the positions close to the inner cavity bottom of the two sides of the mounting sleeve 23. Optionally, the size of the opening of the jaw 13 is matched with the size of the outer diameter of the mounting sleeve 23. Through this arrangement, the swing cavity 21 is prevented from falling off, thereby improving the swing stability of the swing cavity 21.

[0042] In a preferred embodiment, referring to Figure 2 , Figure 4 and Figure 5 , the inside of the mounting sleeve 23 is provided with a spring mounting seat 231; the pressing piece 22 includes a spring 221 and a pressing head 222, one end of the spring 221 is connected with the spring mounting seat 231, and the other end of the spring 221 is sleeved with the pressing head 222.

[0043] For the toggle 2 of the embodiment, the inside of the mounting sleeve 23 is provided with a spring mounting seat 231 with a specific shape. The shape of the spring mounting seat 231 can be a "cross" shape or a cylindrical shape, etc.

[0044] The pressing piece 22 of the toggle piece 2 comprises a spring 221 fixedly connected with a spring mounting seat 231, and a pressing head 222 sleeved with the spring 221, and the front end of the pressing head 222 abuts against the top surface of the middle part of the switch flap 44. Wherein, the shape of the pressing head 222 is referred to a bullet head, the front end of which is a streamlined sharp head structure, and the rear end is a conical table structure. It can be understood that, by arranging the pressing piece 22 with the spring 221 and the pressing head 222, the toggle piece 2 of the embodiment can ensure the stability of the contact with the switch flap 44, and the sharp head part of the pressing head 222 can accurately position the switch flap 44 and uniformly apply pressure, thereby ensuring the swing stability of the switch flap 44.

[0045] Further, the connection part of the pressing head 222 and the spring 221 (i.e. the side of the conical table structure) is provided with a barb or a bump or other anti-dropping structure, so as to improve the mounting stability between the pressing head 222 and the spring 221, and avoid the pressing head 222 from falling off from the spring 221.

[0046] In addition, the utility model also provides a small-angle switch, referring to Figure 1 、 Figure 6 and Figure 7 , in the second embodiment, the small-angle switch comprises a back cover 3, a switch wiring device 4 and a switch driving device as described in any one of the above embodiments; the switch wiring device 4 comprises a wiring assembly and a switch flap 44 connected with the wiring assembly, the wiring assembly is installed in the back cover 3, and the middle part of the switch flap 44 abuts against the switch driving device; and the switch driving device is swingably connected with the back cover 3.

[0047] More specifically, the back cover 3 of the small-angle switch of the embodiment can be installed in a wall surface or a ground surface.

[0048] The switch wiring device 4 comprises a wiring assembly arranged in the back cover 3 and a switch flap 44 connected with the wiring assembly, and the wiring assembly comprises a plurality of wiring terminals for connecting external circuits.

[0049] The switch driving device is the switch driving device in any one of the above embodiments, the switch pressing plate 1 of the switch driving device is swingably connected with the back cover 3, the front end (i.e. the pressing piece 22) of the toggle piece 2 of the switch driving device abuts against the switch flap 44, when the switch pressing plate 1 is pressed, the toggle piece 2 is swung through the clamp arm base 12 and the clamp arm 13 on the clamp arm base 12, thereby driving the switch flap 44 to swing to both ends, so as to realize the conduction or on-off of the switch circuit.

[0050] It can be understood that when the small-angle switch is installed, the switch wiring device 4 is first installed in the rear cover 3, then the toggle piece 2 is assembled with the support seat 5 and installed in the rear cover 3, and the support seat 5 is pressed on the switch wiring device 4, and finally the switch pressing plate 1 is installed in the rear cover 3. At this time, since the pressing piece 22 of the toggle piece 2 is pressed against the inclined surface of the switch tab 44, the toggle piece 2 will be subjected to a reaction force, which is transmitted to the main plate 11 through the swing cavity 21 and the jaw arm base 12 provided with the jaw arm 13, so that the entire switch pressing plate 1 is inclined.

[0051] In a preferred embodiment, referring to Figure 6 、 Figure 7 and Figure 8 , the small-angle switch further comprises a support seat 5, one end of the support seat 5 is rotatably connected with the switch pressing plate 1, the other end of the support seat 5 is connected with the wiring assembly, and the toggle piece 2 is inserted in the support seat 5.

[0052] It can be understood that one end of the support seat 5 is rotatably connected with the switch pressing plate 1, and the other end of the support seat 5 is connected with the wiring assembly to position and support the wiring assembly. The support seat 5 is internally provided with a receiving cavity, and the toggle piece 2 can be completely inserted in the receiving cavity of the support seat 5 to limit the swing stroke of the toggle piece 2, avoid the toggle piece 2 from shaking or deviating from the normal running track, and improve the stability of the switch action.

[0053] When the wiring assembly comprises a first wiring terminal 41, a second wiring terminal 42 and a common wiring terminal 43, the support seat 5 can be provided with a first support frame corresponding to the first wiring terminal 41, a second support frame corresponding to the second wiring terminal 42 and a third support frame corresponding to the common wiring terminal 43. One side of the first support frame is provided with a first bolt for fixing the first electrical contact piece, and one side of the second support frame is provided with a second bolt for fixing the second electrical contact piece. Correspondingly, the first electrical contact piece and the second electrical contact piece are both provided with bolt holes corresponding to the positions of the bolts, so that the wiring assembly can be stably supported.

[0054] In a preferred embodiment, referring to Figure 4 、 Figure 5 、 Figure 7 and Figure 8 , the toggle piece 2 is symmetrically provided with a movable shaft 24 on both sides, the inside of the support seat 5 is provided with a clamping groove 51 corresponding to the position of the movable shaft 24, and the movable shaft 24 is installed in the clamping groove 51.

[0055] More specifically, the toggle member 2 is symmetrically provided with a pair of movable shafts 24 on both sides parallel to the swing direction of the toggle member 2, and the center line of the pair of movable shafts 24 is the rotation axis of the toggle member 2. Correspondingly, the accommodating cavity of the support base 5 is provided with a special-shaped clamping groove 51 at the position corresponding to the movable shaft 24. The clamping groove 51 can be U-shaped or drop-shaped. When the toggle member 2 is inserted into the accommodating cavity of the support base 5, the flexible swing of the toggle member 2 is realized through the cooperation of the movable shaft 24 and the clamping groove 51.

[0056] In a preferred embodiment, referring to Figure 7 , the switch flap 44 is a boat-shaped flap; the wiring assembly includes a first wiring terminal 41, a second wiring terminal 42, and a common wiring terminal 43; the first wiring terminal 41 includes a first contact piece and a first wiring sleeve for fixing the first contact piece, the second wiring terminal 42 includes a second contact piece and a second wiring sleeve for fixing the second contact piece, and the common wiring terminal 43 includes a power contact piece and a third wiring sleeve for fixing the power contact piece; the boat-shaped flap is arranged between the first contact piece and the second contact piece, and the middle bottom surface of the boat-shaped flap abuts against the power contact piece, and the boat-shaped flap swings to contact or separate from the first contact piece and the second contact piece to realize the conduction or disconnection of the switch circuit.

[0057] More specifically, the small-angle switch of the embodiment has a boat-shaped switch flap 44, one side of the middle part of the boat-shaped flap abuts against the abutting member 22, the other side of the middle part of the boat-shaped flap abuts against the power contact piece, and the two ends of the boat-shaped flap are respectively provided with a first contact point and a second contact point.

[0058] The wiring assembly mainly includes a first wiring terminal 41, a second wiring terminal 42, and a common wiring terminal 43. The first wiring terminal 41 includes a first contact piece, a first wiring sleeve, and a first bolt. The first wiring sleeve is provided with a through hole on one side for mounting the first bolt. One end of the first contact piece is inserted into the first wiring sleeve and is fixed by the first bolt. The other end of the first contact piece is provided with a third contact point corresponding to the position of the first contact point of the switch flap 44. The second wiring terminal 42 includes a second contact piece, a second wiring sleeve, and a second bolt. The second wiring sleeve is provided with a through hole on one side for mounting the second bolt. One end of the second contact piece is inserted into the second wiring terminal 42 and is fixed by the second bolt. The other end of the second contact piece is provided with a fourth contact point corresponding to the position of the second contact point of the switch flap 44. The common wiring terminal 43 includes a power contact piece, a third wiring sleeve, and a third bolt. One end of the power contact piece is inserted into the third wiring sleeve and is fixed by the third bolt.

[0059] When the switch is not pressed, the switch flap 44 swings to contact the first contact and separate from the second contact to realize the opening of the switch circuit; when the switch is pressed, the switch flap 44 swings to separate from the first contact and contact the second contact to realize the closing of the switch circuit. That is, the small-angle switch of the embodiment can realize the flexible switching of the switch state by arranging a plurality of wiring terminals and a switch flap 44.

[0060] In a preferred embodiment, with reference to Figure 1 and Figure 7 The back of the main plate 11 is provided with a pair of mounting brackets 14, and the two sides of the support seat 5 are provided with mounting shafts 52 adapted to the mounting brackets 14, and the mounting brackets 14 are clamped with the mounting shafts 52.

[0061] More specifically, a pair of mounting brackets 14 are symmetrically arranged in the middle of the back of the main plate 11, and the mounting direction of the mounting brackets 14 is perpendicular to the swinging direction of the knob 2. A semi-closed circular clamping groove is formed in the middle of the mounting bracket 14, and at this time, the center of the connection of the pair of mounting brackets 14 is the rotation axis of the switch plate 1. Correspondingly, the two sides of the support seat 5 are provided with mounting shafts 52 adapted to the circular clamping groove at the positions corresponding to the mounting brackets 14. At this time, the circular clamping groove of the main plate 11 is clamped on the mounting shaft 52 of the support seat 5 to realize the rotation connection of the switch plate 1 and the support seat 5.

[0062] In a preferred embodiment, the back cover 3 is provided with a key mounting groove, the switch plate 1 is provided with a mounting frame 15 adapted to the key mounting groove, and the back of the switch plate 1 is provided with a pair of swing limiting blocks 16 along the first central axis direction of the mounting frame 15. The mounting frame 15 is clamped in the key mounting groove and is limited by the pair of swing limiting blocks 16.

[0063] More specifically, the back cover 3 of the small-angle switch of the embodiment is provided with a ring of key mounting grooves, and a semicircular protrusion is arranged in the middle of the two grooves parallel to the swinging direction of the knob 2. Correspondingly, the back of the switch plate 1 is provided with a mounting frame 15 adapted to the key mounting groove. The two side edges of the mounting frame 15 perpendicular to the swinging direction of the knob 2 have the same width, and the two side edges parallel to the swinging direction of the knob 2 are in inverted "V" shape. The arrangement of the key mounting groove and the mounting frame 15 can ensure the accurate assembly of the back cover 3 and the switch plate 1, and the arrangement of the semicircular protrusion in the key mounting groove can reduce the friction when the switch is pressed, thereby improving the smoothness of the switch.

[0064] Second, the switch press plate 1 back along the first axis direction of the installation frame 15 (i.e. parallel to the direction of the rocker 2 swing) symmetrical arrangement of a pair of semicircular swing limiting block 16, the key installation groove and installation frame 15 after cooperation and installation, through the swing limiting block 16 prevent switch press plate 1 collapse.

[0065] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A switch driving device, characterized in that, The utility model relates to a switch driving device, which comprises: A switch press plate (1) and a toggle piece (2); The switch press plate (1) comprises a main plate (11) and a pincer arm base (12) mounted on the back of the main plate (11), and a pincer arm (13) is arranged at the end of the pincer arm base (12) away from the main plate (11); The toggle piece (2) comprises a pressing piece (22) and a swing cavity (21) accommodating the pincer arm (13), and a mounting sleeve (23) is arranged at the middle part of the swing cavity (21) and extends outward, the pressing piece (22) is mounted in the mounting sleeve (23), and the front end of the pressing piece (22) abuts against a switch tab (44).

2. The switching drive apparatus according to claim 1, wherein The front end of the pincer arm (13) is provided with a boss (131).

3. The switching drive apparatus according to claim 2, wherein The swing cavity (21) comprises a containing part (211), and a pressing arm (212) is arranged on each side of the opening of the containing part (211); the pincer arm (13) is inserted into the containing part (211) and abuts against both sides of the mounting sleeve (23).

4. The switching drive apparatus according to claim 1, wherein The inside of the mounting sleeve (23) is provided with a spring mounting seat (231); the pressing piece (22) comprises a spring (221) and a pressing head (222), one end of the spring (221) is connected with the spring mounting seat (231), and the other end of the spring (221) is sleeved with the pressing head (222).

5. A small angle switch characterized by, The utility model relates to a switch driving device, which comprises: A rear cover (3), a switch wiring device (4) and the switch driving device according to any one of claims 1-4; the switch wiring device (4) comprises a wiring assembly and a switch tab (44) connected with the wiring assembly, the wiring assembly is mounted in the rear cover (3), the middle part of the switch tab (44) abuts against the switch driving device; and the switch driving device is swing-connected with the base.

6. The small angle switch of claim 5, wherein, The switch further comprises a support seat (5), one end of the support seat (5) is rotationally connected with the switch press plate (1), the other end of the support seat (5) is connected with the wiring assembly in a matching mode, and the toggle piece (2) is inserted into the support seat (5).

7. The low angle switch of claim 6, wherein, Symmetrically arranged on both sides of the toggle piece (2) are movable shafts (24), and the inside of the support seat (5) is provided with clamping grooves (51) corresponding to the positions of the movable shafts (24), and the movable shafts (24) are mounted in the clamping grooves (51).

8. The low angle switch of claim 5, wherein, The switch cantilever (44) is a boat-shaped cantilever; the wiring assembly comprises a first wiring terminal (41), a second wiring terminal (42) and a common wiring terminal (43); the first wiring terminal (41) comprises a first contact piece and a first wiring sleeve for fixing the first contact piece, the second wiring terminal (42) comprises a second contact piece and a second wiring sleeve for fixing the second contact piece, and the common wiring terminal (43) comprises a through contact piece and a third wiring sleeve for fixing the through contact piece; the boat-shaped cantilever is arranged between the first contact piece and the second contact piece, and the middle bottom surface of the boat-shaped cantilever abuts against the through contact piece; the boat-shaped cantilever swings to contact or separate from the first contact piece and the second contact piece, so as to realize the conduction or disconnection of a switching circuit.

9. The low angle switch of claim 6, wherein, The back surface of the main board (11) is provided with a pair of mounting brackets (14), and the two sides of the support seat (5) are provided with mounting shafts (52) matched with the mounting brackets (14), and the mounting brackets (14) are clamped with the mounting shafts (52).

10. The low angle switch of claim 5, wherein, The back cover (3) is provided with a key mounting groove, the switch press plate (1) is provided with a mounting frame (15) matched with the key mounting groove, the back surface of the switch press plate (1) is provided with a pair of swing limiting blocks (16) along the first central axis direction of the mounting frame (15), the mounting frame (15) is clamped and mounted in the key mounting groove and is limited by the pair of swing limiting blocks (16).

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