A small swing angle amplification device and an electric switch

Abstract

The present invention relates to a small swing angle amplification device, and its technical key points are as follows: a pressing plate, a first toggle part is provided on one end of the pressing plate, and the pressing plate is hinged by a first swing shaft; a swing block, a second toggle part and a third toggle part are provided at both ends of the swing block, respectively, the swing block is hinged by a second swing shaft, and the first toggle part is connected to the second toggle part; a toggle block, the toggle block is hinged by a third swing shaft, and one end of the toggle block is toggle by the third toggle part to toggle the conductive sheet; the first swing shaft, the third swing shaft, and the second swing shaft are arranged in sequence from the end surface of the pressing plate to the direction of the first toggle part. The present invention also relates to an electric switch, including an outer frame, a bracket is provided on the back of the outer frame, a middle cover and a back seat are provided on the bracket, a first swing shaft is provided on the back of the outer frame, the swing block and the toggle block are provided in the middle cover, the third swing shaft and the second swing shaft are provided on the middle cover, a paddle is provided on the back of the pressing plate, and the first toggle part is provided at the end of the paddle. The pressing plate of the present invention swings at a small swing angle, and the product thickness is thin.

Description

Technical Field

[0001] The invention relates to an amplifying device capable of making a pressing plate swing at a small angle and an electric switch using the device. Background Art

[0002] Due to the requirements of internal electrical clearance and other factors, the rotation angle of the internal swinging member of the household electrical switch is generally 5-6 degrees. However, if the rotation angle of the large panel rocker switch is 5-6 degrees, the product surface will be too protruding and the appearance will be insufficient. Therefore, for the sake of product aesthetics, the full panel large rocker switches currently on the market have a smaller swing angle of the rocker (generally not less than 3 degrees). If the swing angle is further reduced, its internal conductive function will be affected. The present invention can convert the small swing angle of the seesaw on the switch surface into the large swing angle required by the internal swinging member, thereby achieving a thinner appearance of the switch, beautiful appearance and stable electrical performance. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a small swing angle amplification device with a simple structure that can make a push plate swing at a small angle. The present invention also provides an electric switch with a thin thickness and a push plate that can swing at a small angle.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A small swing angle magnification device, characterized by comprising:

[0006] A pressing plate, wherein a first toggle portion is disposed on one end of the pressing plate, and the pressing plate is hinged via a first swing shaft so that an end surface of the pressing plate and the first toggle portion swing around the first swing shaft;

[0007] A swing block, wherein the second and third toggle parts are respectively provided at both ends of the swing block, the swing block is hinged via a second swing shaft so that the second and third toggle parts swing around the second swing shaft, and the first toggle part is connected to the second toggle part so that the first toggle part can toggle the second toggle part;

[0008] A shifting block, wherein the shifting block is hinged via a third swing shaft, and one end of the shifting block is shifted by a third shifting part so that the other end of the shifting block swings around the third swing shaft to shift the conductive sheet;

[0009] The first swing shaft, the third swing shaft, and the second swing shaft are arranged in sequence from the end surface of the pressing plate toward the direction of the first shifting part.

[0010] The small swing angle magnifying device as described above is characterized in that the first toggle part is a clamping groove, and the second toggle part is a convex column inserted into the clamping groove.

[0011] A small swing angle amplification device as described above, characterized in that: one end of the dial block is provided with a groove, and the other end of the dial block is provided with a tip that can toggle the conductive sheet, and the third toggling part is a plug inserted into the groove.

[0012] A small swing angle amplification device as described above, characterized in that: the distance from the end face of the pressing plate to the first swing shaft is less than the distance from the first toggling part to the first swing shaft.

[0013] A small swing angle amplification device as described above, characterized in that: the distance from the second toggling part to the second swing shaft is less than the distance from the third toggling part to the second swing shaft.

[0014] A small swing angle amplification device as described above, characterized in that: the distance from the groove to the third swing shaft is less than the distance from the tip to the third swing shaft.

[0015] An electric switch using the above small swing angle amplification device, characterized in that: it includes an outer frame, a bracket is provided on the back surface of the outer frame, a middle cover and a rear seat covering the middle cover are provided on the bracket, the first swing shaft is provided on the back surface of the outer frame, the swing block and the dial block are provided in the middle cover, the third swing shaft and the second swing shaft are provided on the middle cover, a toggle piece extending into the middle cover is provided on the back surface of the pressing plate, and the first toggling part is provided at the end of the toggle piece.

[0016] An electric switch as described above, characterized in that: the middle cover is provided with a first installation groove for installing the swing block and a second installation groove for installing the dial block, the second swing shaft is provided on two opposite side walls of the first installation groove, the third swing shaft is provided on two opposite side walls of the second installation groove, and the toggle piece extends into the first installation groove.

[0017] An electric switch as described above, characterized in that: the toggle piece, the swing block, and the dial block are arranged in parallel.

[0018] The beneficial effects of the present invention are: the swing of the pressing plate drives the swing of the swing block, and the swing of the swing block drives the swing of the dial block. By arranging the first swing shaft, the third swing shaft, and the second swing shaft in sequence from the front end face to the rear end face of the mounting seat, through such transmission, the swing angle of the pressing plate is the smallest, and the swing angle of the dial block is the largest. Thus, the swing angle of the pressing plate can be reduced, and the swing angle of the pressing plate can be approximately 1.5°. The pressing plate protrudes less, making the overall thickness of the switch thinner and the installation more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the amplification device of the present invention;

[0020] Figure 2 is a perspective view of the electric switch of the present invention;

[0021] Figure 3 is a cross-sectional view of an electric switch of the present invention;

[0022] Figure 4 An exploded view of the electric switch of the present invention;

[0023] Figure 5 It is a three-dimensional diagram of components of the electric switch of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0025] like Figure 1 As shown, a small swing angle magnification device is characterized by comprising:

[0026] A pressing plate 2, one end of which is provided with a first toggle portion 21, the pressing plate 2 is hinged through a first swing shaft 11 so that the end surface of the pressing plate 2 and the first toggle portion 21 swing around the first swing shaft 11, and the end surface of the pressing plate 2 is pressed back and forth by hand, so that the first toggle portion 21 swings back and forth around the first swing shaft 11;

[0027] The swing block 3 has a second toggle part 31 and a third toggle part 32 at both ends thereof. The swing block 3 is hinged by the second swing shaft 12 so that the second toggle part 31 and the third toggle part 32 swing around the second swing shaft 12. The first toggle part 21 is connected to the second toggle part 31 so that the first toggle part 21 can toggle the second toggle part 31. When the first toggle part 21 swings back and forth, it drives the second toggle part 31 to swing back and forth. The third toggle part 32 is close to the end surface of the pressing plate 2. Compared with the second toggle part 31, the third toggle part 32 is closer to the pressing plate 2.

[0028] The shift block 4 is hinged by the third swing shaft 13. One end of the shift block 4 is shifted by the third shifting part 32 so that the other end of the shift block 4 swings around the third swing shaft 13 to shift the conductive sheet. The conductive sheet is shifted back and forth to achieve the switching of the potential. The pressing plate 2 and the shift block 4 are respectively on the left and right sides of the swing block 3. In this embodiment, the height directions of the swing block 3 and the shift block 4 are roughly the same. When set, the two ends of the swing block 3 are basically flush with the two ends of the shift block 4.

[0029] The first swing shaft 11, the third swing shaft 13, and the second swing shaft 12 are sequentially arranged from the end surface of the pressing plate 2 to the direction of the first toggle portion 21. The sequential arrangement from the end surface of the pressing plate 2 to the direction of the first toggle portion 21 does not mean that the first swing shaft 11, the third swing shaft 13, and the second swing shaft 12 are on the same straight line, but refers to the position arrangement of the first swing shaft 11, the third swing shaft 13, and the second swing shaft 12 in a certain direction, for example, from the end surface of the pressing plate 2 to the direction of the first toggle portion 21. Figure 3From the perspective of height, it can also be said that the distances from the first swing shaft 11, the third swing shaft 13, and the second swing shaft 12 to the pressing plate 2 increase successively, and the first swing shaft 11, the second swing shaft 12, and the third swing shaft 13 are all parallel, so that the pressing end face of the pressing plate 2 is closest to the first swing shaft 11, and a small swing of the pressing plate 2 can make the first toggle part 21 swing with the maximum amplitude, so that the swing amplitude is amplified once, and the large swing of the first toggle part 21 will drive the second toggle part 31 to swing with a large amplitude. Since the second swing shaft 12 is farthest from the front end face of the mounting seat, that is to say, the second toggle part 31 is close to the second swing shaft 12, so that the swing amplitude of the third toggle part 32 is amplified again, and similarly, the position of the third swing shaft 13 is in the middle, and the swing amplitude of the end of the shift block 4 is also amplified. After three swing amplitude amplifications, the swing amplitude of the end of the shift block 4 toggling the conductive sheet is finally amplified, and finally the end face of the pressing plate 2 can achieve a swing amplitude of 1.5°, and the toggle end of the shift block 4 reaches a swing amplitude of 6°.

[0030] The first toggle part 21 is a clamping groove, and the second toggle part 31 is a convex column inserted into the clamping groove. A groove 41 is provided at one end of the toggle block 4, and a tip 42 that can toggle the conductive sheet is provided at the other end of the toggle block 4. The tip 42 swings and toggles the conductive sheet back and forth, thereby switching the gear position. The third toggle part 32 is a plug inserted into the groove 41.

[0031] In order to achieve the minimum swing angle, the distance from the front end face of the pressing plate 2 (i.e., the side for hand pressing) to the first swing shaft 11 (center) is smaller than the distance from the first toggle part 21 to the first swing shaft 11, the first swing shaft 11 is as close to the front end face of the pressing plate 2 as possible, and the distance from the first toggle part 21 to the first swing shaft 11 is at least five times the distance from the front end face of the pressing plate 2 to the first swing shaft 11. In this way, under the condition of satisfying the pressing force, the small angle swing of the end face of the pressing plate 2 can maximize the swing amplitude of the first toggle part 21. The distance from the second toggle part 31 to the second swing shaft 12 is smaller than the distance from the third toggle part 32 to the second swing shaft 12, and the distance from the groove 41 to the third swing shaft 13 is smaller than the distance from the top 42 to the third swing shaft 13. In this way, through three times of amplification, the swing angle of the pressing plate 2 can be between 2.5°-1.5°, the swing angle of the swing block 3 can be between 2.5°-1.5° and 4.5°-3.75°, and the swing angle of the toggle block 4 can be between 7.5°-6°.

[0032] like Figures 1 to 5As shown, an electric switch comprises an outer frame 1, a bracket 18 is provided on the back side of the outer frame 1 (the end face where the switch is pressed is the front side), a middle cover 14 and a back seat 19 covering the middle cover 14 are provided on the bracket 18, two first swing shafts 11 are provided on the back side of the outer frame 1, the bracket 18 can cover the first swing shaft 11, a swing block 3 and a shift block 4 are provided in the middle cover 14, a third swing shaft 13 and a second swing shaft 12 are provided on the middle cover 14, a shift piece 22 extending into the middle cover 14 is provided on the back side of the pressing plate 2, a first shifting portion 21 is provided at the end of the shift piece 22, and the shift piece 22, the swing block 3, and the shift piece 4 are provided in parallel.

[0033] The middle cover 14 is provided with a first mounting groove 15 for the swing block 3 to be installed in and a second mounting groove 16 for the shifting block 4 to be installed in. The second swing shaft 12 is plugged into two opposite side walls of the first mounting groove 15, the third swing shaft 13 is plugged into two opposite side walls of the second mounting groove 16, and the shifting piece 22 extends into the first mounting groove 15. Since the second swing shaft 12 is parallel to the protruding column and protrudes on the same side of the swing block 3, an escape groove can be provided in the clamping groove to allow the second swing shaft 12 to pass through the side wall of the first mounting groove 15, but the swing of the clamping groove will not interfere with the second swing shaft 12, the structure is simple, and the installation is convenient.

Claims

1. A small swing angle magnification device, It is characterized in that include: A pressing plate (2), wherein a first toggle portion (21) is provided on one end of the pressing plate (2), and the pressing plate (2) is hingedly connected via a first swing shaft (11) so that an end surface of the pressing plate (2) and the first toggle portion (21) swing around the first swing shaft (11); A swing block (3), wherein two ends of the swing block (3) are respectively provided with a second toggle part (31) and a third toggle part (32); the swing block (3) is hinged via a second swing shaft (12) so that the second toggle part (31) and the third toggle part (32) swing around the second swing shaft (12); the first toggle part (21) is connected to the second toggle part (31) so that the first toggle part (21) can toggle the second toggle part (31); A shift block (4), the shift block (4) being hinged via a third swing shaft (13), one end of the shift block (4) being shifted by a third shifting portion (32) so that the other end of the shift block (4) swings around the third swing shaft (13) to shift the conductive sheet; The first swing shaft (11), the third swing shaft (13), and the second swing shaft (12) are arranged in sequence from the end surface of the pressing plate (2) in the direction of the first moving part (21); The distance from the end surface of the pressing plate (2) to the first swing shaft (11) is smaller than the distance from the first toggle portion (21) to the first swing shaft (11); and the distance from the second toggle portion (31) to the second swing shaft (12) is smaller than the distance from the third toggle portion (32) to the second swing shaft (12).

2. A small swing angle magnification device according to claim 1, Features: The first toggle portion (21) is a clamping groove, and the second toggle portion (31) is a convex column inserted into the clamping groove.

3. A small swing angle magnification device according to claim 1, Features: One end of the shift block (4) is provided with a groove (41), the other end of the shift block (4) is provided with a tip (42) capable of shifting the conductive sheet, and the third shifting portion (32) is a plug column inserted into the groove (41).

4. A small swing angle magnification device according to claim 3, Features: The distance between the groove (41) and the third swing axis (13) is smaller than the distance between the top (42) and the third swing axis (13).

5. An electric switch using the small swing angle amplification device according to any one of claims 1 to 4, Features: The invention comprises an outer frame (1), a bracket (18) is provided on the back of the outer frame (1), a middle cover (14) and a rear seat (19) covering the middle cover (14) are provided on the bracket (18), the first swing shaft (11) is provided on the back of the outer frame (1), the swing block (3) and the shift block (4) are provided in the middle cover (14), the third swing shaft (13) and the second swing shaft (12) are provided on the middle cover (14), the back of the pressing plate (2) is provided with a shifting piece (22) extending into the middle cover (14), and the first shifting portion (21) is provided at the end of the shifting piece (22).

6. An electric switch according to claim 5, Features: The middle cover (14) is provided with a first installation groove (15) for the swing block (3) to be installed and a second installation groove (16) for the dial block (4) to be installed. The second swing shaft (12) is arranged on two opposite side walls of the first installation groove (15), and the third swing shaft (13) is arranged on two opposite side walls of the second installation groove (16). The dial piece (22) extends into the first installation groove (15).

7. An electric switch according to claim 5, characterized in that: the dial piece (22), the swing block (3), and the dial block (4) are arranged in parallel.

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