Bipolar driving switch

Abstract

The utility model discloses a bipolar driving switch, which comprises a switch button and two groups of switch switching mechanisms, the shifting rod is arranged around the horizontal axis in a swinging mode and comprises a base body, two rod parts are formed on the rear side of the base body, and the front portions of the shifting tongues are arranged in the corresponding rod parts in a sliding mode respectively. The switch further comprises amplification driving arms, the two amplification driving arms are symmetrically distributed up and down relative to the hinge position of the driving lever, one end of each amplification driving arm is provided with a pushing and shifting end used for making contact with the outer wall of the rear end of the lever part, and the other corresponding end of each amplification driving arm is provided with a pressed end used for making contact with the rear portion of the switch key correspondingly. The amplification driving arm is provided with a crank arm portion bent backwards, the crank arm portion is formed between the driving arm hinge position and the pushing end, the driving arm hinge position is arranged between the pushing end and the pressed end, and the distance from the pushing end to the driving arm hinge position is larger than the distance from the pressed end to the driving arm hinge position. The bipolar drive switch provided by the utility model is beneficial to improving the safety of electricity utilization and is beneficial to the stable and reliable switching of the switch.

Description

Technical Field

[0001] The utility model relates to the field of track sockets, in particular to a bipolar drive switch. Background Art

[0002] At present, there are high-power wall switches on the market, for example, wall switches with a rated current of 20A, but this type of wall switch can only cut off the live wire (i.e., a single-pole switch), and the neutral wire is always set, which is not conducive to safe use of electricity. The switch switching mechanism of the wall switch in the prior art adopts a structure in which a tongue is used to slide the switch seesaw so that the moving contact at the end of the switch seesaw switches to contact the static contact. Specifically, the front part of the tongue is slidably set in the rear part of the lever, and the lever is swingingly set. The middle position of the switch button in the vertical direction is connected to the above-mentioned lever. Pressing the switch button makes the lever swing to achieve power transmission, and the switch switching can be achieved. The above-mentioned switch switching mechanism can be exemplified by the "wall switch" of the Chinese utility model patent publication number CN218241645U; but since the swing angle of the switch button is roughly equal to the swing angle of the lever, the upper (or lower) end of the switch button protrudes forward significantly, making the combination of the wall and the switch look poor, and Since the switch seesaw needs to pass a large current, in order to avoid serious heating of the switch seesaw, the thickness of the switch seesaw needs to be increased accordingly, and the spring of the switch switching mechanism is used to push the tongue toward the switch seesaw, so that the switch seesaw is in close contact with the swing support plate, and the moving contact is in close contact with the static contact. Therefore, the elastic force of the above spring needs to be increased, which makes it necessary to have a greater force to toggle the switch button. Since the switch button usually adopts a thin shell structure, pressing the upper and lower ends of the switch button with fingers will cause a certain degree of elastic bending deformation of the switch button. As a result, the middle part of the switch button fails to drive the lever to achieve a sufficient swing amplitude, resulting in unstable switch switching, and the swing stroke of the switch button needs to be set larger. As can be seen from the above, it is necessary to improve the wall switch of the prior art. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a bipolar drive switch, which is beneficial to improving the safety of electricity use and is beneficial to stable and reliable switch switching.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The bipolar drive switch disclosed in the utility model comprises a switch button and two groups of switch switching mechanisms, wherein the switch button is arranged at the front side of the switch switching mechanism, the switch button is swingably arranged, and the switch switching mechanism is provided with a switch seesaw and a tongue for toggling the switch seesaw, wherein the two groups of switch switching mechanisms are arranged side by side on the left and right; further comprising a toggle lever, the toggle lever is swingably arranged around a horizontal axis, the toggle lever comprises a base body, the left and right ends of the base body are respectively formed with toggle lever hinge positions, the rear side of the base body is formed with two rod parts, and the front ends of the tongues are respectively slidably arranged in the corresponding rod parts; further comprising an amplifying drive arm, the amplifying drive arm is swingably arranged around a horizontal axis The amplifying driving arm is provided with a driving arm hinge position, and the two amplifying driving arms are symmetrically distributed up and down about the hinge position of the lever, and one end of the amplifying driving arm is provided with a pushing end for contacting the outer wall of the rear end portion of the rod portion, and the other corresponding end of the amplifying driving arm is formed with a pressed end for correspondingly contacting the rear portion of the switch button, and the amplifying driving arm is formed with a curved arm portion bent backward, and the curved arm portion is formed between the driving arm hinge position and the pushing end, and the driving arm hinge position is provided between the pushing end and the pressed end, and the distance from the pushing end to the driving arm hinge position is greater than the distance from the pressed end to the driving arm hinge position.

[0006] Preferably, the bipolar drive switch of the utility model also includes a back shell and a cover seat, the switch switching mechanism is arranged in the back shell, the cover seat is arranged on the front side of the tongue, and the front side of the cover seat is formed with a button hinge shaft, a lever hinge hole and a drive arm hinge hole, the button hinge shaft and the lever hinge hole are coaxially arranged, the switch button and the cover seat are hinged to the button hinge shaft, the lever hinge position is adaptably connected to the corresponding lever hinge hole, the drive arm hinge position is adaptably connected to the corresponding drive arm hinge hole, the curved arm portion passes through the cover seat, and the rod portion passes through the cover seat.

[0007] Preferably, the pressed ends are distributed at left and right ends of the amplifying driving arm.

[0008] Preferably, the pushing and pulling end is formed into an arc surface, a sliding plane is formed on the rod portion, and the pushing and pulling end is in close contact with the corresponding sliding plane.

[0009] Preferably, a limiting step is formed in the front end of the back shell, and a pressing column for contacting the pressed end is formed on the rear side of the switch button, and the pressed end can be clamped between the limiting step and the pressing column.

[0010] Compared with the prior art, the utility model has the following beneficial effects: by arranging two groups of switch switching mechanisms side by side, a lever is arranged to include a base, a lever hinge position is formed at the left and right ends of the base, two rod portions are formed on the rear side of the base, the front portions of the tongues are respectively slidably arranged in the corresponding rod portions, an amplifying driving arm is arranged to form a driving arm hinge position, the two amplifying driving arms are symmetrically distributed up and down about the lever hinge position, one end of the amplifying driving arm is provided with a push-pull end for contacting the outer wall of the rear end portion of the rod portion, and the other end of the amplifying driving arm corresponding to the push-pull end is formed The utility model has a pressed end for corresponding to the rear part of the contact switch button, and the amplifying driving arm has a curved arm portion that is bent backwards, and the curved arm portion is formed between the driving arm hinge position and the push-pull end, and the driving arm hinge position is arranged between the push-pull end and the pressed end, and the distance from the push-pull end to the driving arm hinge position is greater than the distance from the pressed end to the driving arm hinge position. Therefore, the switch of the utility model can realize the simultaneous switching of the live wire and the neutral wire, which is beneficial to improving the safety of electricity use; by arranging the amplifying driving arm, the swing amplitude of the switch button is amplified and output to the push tongue, which is beneficial to stable and reliable switch switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the switch of the utility model.

[0012] Figure 2 It is a front three-dimensional structural schematic diagram of the switch of the utility model.

[0013] Figure 3 It is a schematic diagram of the back three-dimensional structure of the switch of the utility model.

[0014] Figure 4 It is a schematic cross-sectional structure diagram of the switch of the utility model viewed from the right.

[0015] Figure 5 It is a schematic diagram of the cross-sectional structure of the switch of the utility model in the top view direction.

[0016] Figure 6 It is a three-dimensional structural schematic diagram of the switch of the utility model with the switch button removed.

[0017] Figure 7 It is a three-dimensional structural schematic diagram of the cover seat of the utility model.

[0018] Figure 8 It is a three-dimensional structural schematic diagram of the lever of the utility model.

[0019] Fig. 9 It is a three-dimensional structural schematic diagram of the amplifier driving arm of the utility model.

[0020] Fig.10 It is a side structural schematic diagram of the amplifier driving arm of the utility model.

[0021] Fig.11 It is a schematic diagram of the three-dimensional structure of the back shell of the utility model.

[0022] Fig.12 It is a schematic diagram of the back three-dimensional structure of the switch button of the utility model.

[0023] Explanation of reference numerals: back shell 1; limiting step 101; switch switching mechanism 2; switch rocker 21; moving contact 211; static contact 22; tongue 23; swing support plate 24; locking spring 25; cover seat 3; button hinge shaft 31; lever hinge hole 32; drive arm hinge hole 33; lever 4; base 40; rod 41; sliding plane 411; lever hinge position 42; amplifier drive arm 5; drive arm hinge position 50; push end 51; pressed end 52; curved arm portion 510; switch button 6; press column 61. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] The bipolar drive switch of the utility model is as follows: Figures 1 to 4 As shown, it includes a switch button 6 and two sets of switch switching mechanisms 2. The switch button 6 is arranged at the front side of the switch switching mechanism 2. The switch button 6 is swingably arranged. The switch switching mechanism 2 is provided with a switch rocker 21 and a tongue 23 for toggling the switch rocker 21. The switch switching mechanism 2 also includes a static contact 22, a swing support plate 24 and a locking spring 25. The swing support plate 24 and the switch rocker 21 can be made of copper. The front end of the swing support plate 24 can be formed into a semi-cylindrical surface. Accordingly, a positioning groove with a circular arc cross section is formed on the rear side of the switch rocker 21. The front end of the swing support plate 24 is adapted to be arranged on the above-mentioned positioning groove. The switch seesaw 21 is positioned in the groove, so the center axis of the semi-cylindrical surface is roughly the swing axis of the switch seesaw 21. A moving contact 211 is provided at one end of the switch seesaw 21. The moving contact 211 can be conductively contacted and connected to the static contact 22. The rear end of the locking spring 25 contacts the front end of the latch tongue 23. The rear end of the latch tongue 23 is kept close to the front side of the switch seesaw 21 by the elastic restoring force of the locking spring 25. Therefore, when the latch tongue 23 moves the switch seesaw 21 up and down, the switch seesaw 21 is swung until the moving contact 211 contacts the static contact 22 or the switch seesaw 21 is swung until the moving contact 211 leaves the static contact 22.

[0026] like Figure 2 , Figure 3 and Figure 5 As shown, two sets of switch switching mechanisms 2 are arranged side by side; Figures 2 to 4 As shown, the bipolar drive switch of the utility model further includes a lever 4, which is swingably arranged around a horizontal axis. Figure 8As shown, the lever 4 includes a base 40, and the left and right ends of the base 40 are respectively formed with lever hinge positions 42. In other words, the lever 4 swings around the lever hinge position 42, and the rear side of the base 40 is formed with two rod portions 41, as shown in FIG. Figure 4 As shown, the front part of the tongue 23 is respectively slidably arranged in the corresponding rod 41. In other words, a sliding cavity is provided in the rod 41, and the opening of the sliding cavity is located at the rear end of the rod 41. The locking spring 25 is provided in the sliding cavity. The front part of the tongue 23 is slidably arranged in the sliding cavity, so when the rod 41 swings, the tongue 23 is driven to swing, and the tongue 23 can realize the telescopic movement relative to the rod 41 through the elastic expansion and contraction of the locking spring 25. Four connecting terminals are provided at the rear of the switch, namely, the neutral line input terminal, the neutral line output terminal, the live line input terminal and the live line output terminal. For example, the neutral line input terminal and the live line input terminal are respectively conductively connected to the corresponding swing support plate 24, and the neutral line output terminal and the live line output terminal are respectively conductively connected to the corresponding static contact 22, so that the neutral line and the live line can be connected or disconnected respectively through the corresponding switch switching mechanism 2. As shown Figures 2 to 4 As shown, the bipolar drive switch of the utility model further includes an amplifying drive arm 5, and the amplifying drive arm 5 is swingably arranged around a horizontal axis, such as Fig. 9 and Fig.10 As shown, the amplifying driving arm 5 is formed with a driving arm hinge position 50, such as Figures 2 to 4 As shown, the two amplifying driving arms 5 are symmetrically distributed up and down about the lever hinge position 42, as shown in FIG. Figure 4 , Fig. 9 and Fig.10 As shown, one end of the amplifier driving arm 5 is provided with a push-pull end 51 for contacting the outer wall of the rear end portion of the rod portion 41. Since the two amplifier driving arms 5 are symmetrically distributed about the lever hinge position 42, that is, the rod portion 41 is arranged between the upper and lower push-pull ends 51, and the other corresponding end of the amplifier driving arm 5 is formed with a pressed end 52 for correspondingly contacting the rear portion of the switch button 6, the amplifier driving arm 5 is formed with a curved arm portion 510 that is bent backwards, and the curved arm portion 510 is formed between the driving arm hinge position 50 and the push-pull end 51, and the driving arm hinge position 50 is arranged between the push-pull end 51 and the pressed end 52. In other words, the pressed end 52 is the end of the amplifier driving arm 5 that is relatively far away from the rod portion 41, and the distance from the push-pull end 51 to the driving arm hinge position 50 (that is, Fig.10 The dimension "W" in the figure is greater than the distance from the pressed end 52 to the hinged position 50 of the driving arm (i.e. Fig.10 dimension "L" in the figure).

[0027] The following briefly describes the working principle of the bipolar drive switch of the utility model: Figure 4As shown, for example, when the lower end of the switch button 6 is pressed backward with a finger to make the switch button 6 swing, the rear part of the switch button 6 correspondingly pushes the pressed end 52 of the amplifier driving arm 5 located at the lower position, causing the amplifier driving arm 5 located at the lower position to swing counterclockwise, so that the push end 51 swings around the driving arm hinge position 50. Since the push end 51 contacts the outer wall of the rear end of the rod 41, and because the lever hinge position 42 is located at the front of the lever 4, the push end 51 can push the rear end of the rod 41 to swing upward. At the same time, since the upper end of the switch button 6 swings forward to leave the pressed end 52 of the amplifier driving arm 5 located at the upper position, the rod 41 can push the amplifier driving arm 5 located at the upper position to swing counterclockwise. When the rod 41 swings upward, the rear end of the tongue 23 is released from the swing support plate 2 4 slides to the upper side of the swing support plate 24, so that the tongue 23 moves the switch seesaw 21, causing the switch seesaw 21 to swing, and the moving contact 211 contacts the static contact 22, and the elastic restoring force of the locking spring 25 is applied to the portion of the switch seesaw 21 located from the static contact 22 to the swing support plate 24 through the tongue 23, so that the static contact 22 and the moving contact 211 are reliably in conductive contact, and the switch seesaw 21 and the swing support plate 24 are reliably in conductive contact; similarly, the upper end of the switch button 6 is pressed backward with a finger, and the switch button 6 drives the amplifying driving arm 5 located in the upper position to swing, and the pushing end 51 of the amplifying driving arm 5 located in the upper position pushes the rod 41 downward to swing, and at the same time, the amplifying driving arm 5 located in the lower position swings synchronously, so that the moving contact 211 is separated from the static contact 22. By providing the lever 4 with two rods 41, the two switch switching mechanisms 2 can realize synchronous switching action, so that the live wire and the neutral wire can be connected at the same time, and the live wire and the neutral wire can be disconnected at the same time, that is, the function of bipolar drive switch action can be realized by operating the switch button 6, so that the electrical equipment can be completely separated from the mains, which is conducive to improving the safety of electricity use; by setting the distance from the push end 51 to the hinge position 50 of the driving arm (that is, Fig.10 The dimension "W" in the figure is greater than the distance from the pressed end 52 to the hinged position 50 of the driving arm (i.e. Fig.10 The dimension "L" in the figure) enables the amplifying driving arm 5 to amplify the swing amplitude of the switch button 6 and output it to the tongue 23. That is to say, when the switch button 6 is in the on or off state, in the up and down direction, the forward protrusion amplitude of one end of the switch button 6 relative to the other end corresponding to the switch button 6 can be set smaller, which is beneficial to improving the visual effect of the switch. It can also be said that by setting the amplifying driving arm 5, it is beneficial to make the lever 4 swing more significantly, which is beneficial to clear switch position switching and stable and reliable switch switching; and, since the driving arm hinge position 50 is set between the pushing end 51 and the pressed end 52, the pressed end 52 can be positioned corresponding to the upper end (or lower end) of the switch button 6, so that the swing stroke of the switch button 6 can be fully utilized. Due to the provision of the curved arm portion 510 that is bent backwards, such as Figure 4 As shown, the forward and backward swinging movement of the pressed end 52 can be converted into a rough upward and downward swinging movement of the push and pull end 51, that is, the thrust of the push and pull end 51 on the rod 41 is roughly along the swing tangent direction of the rod 41, avoiding the push and pull end 51 on the rod 41. The thrust produces an obvious ineffective component force, so that the push and pull end 51 on the rod 41 can more effectively push the rod 41 to swing upward (or downward); because the push and pull end 51 contacts the rear end of the rod 41, it is beneficial to increase the torque of the push and pull end 51 on the lever 4, so that the lever 4 is easier to drive the switch rocker 21; as can be seen from the above, the switch of the utility model is conducive to stable and reliable switch switching.

[0028] Furthermore, if Figures 1 to 3 As shown, the bipolar drive switch of the utility model further includes a back shell 1 and a cover seat 3, the switch switching mechanism 2 is arranged in the back shell 1, the cover seat 3 is arranged in front of the tongue 23, the cover seat 3 is located in the front part of the back shell 1, and the edge of the cover seat 3 is buckled with the back shell 1, as shown in FIG. Figure 7 As shown, a button hinge shaft 31, a lever hinge hole 32 and a drive arm hinge hole 33 are formed on the front side of the cover seat 3. The button hinge shaft 31 and the lever hinge hole 32 are coaxially arranged. The switch button 6 and the cover seat 3 are hinged to the button hinge shaft 31. Specifically, two left and right fork buckle plates are formed at the middle position in the up-down direction on the back side of the switch button 6. The fork buckle plates are clamped to the button hinge shaft 31. The lever hinge position 42 is adapted to be connected with the corresponding lever hinge hole 32. Figure 8 As shown, the lever hinge position 42 is specifically a cylindrical shaft head structure, so the lever 4 swings around the center line of the lever hinge hole 32, and the drive arm hinge position 50 is adapted to be connected with the corresponding drive arm hinge hole 33, as shown in FIG. Fig. 9 As shown, the driving arm hinge position 50 is set as a cylindrical shaft head, and the driving arm hinge position 50 is adapted to be inserted into the corresponding driving arm hinge hole 33, as shown in FIG. Figure 6 As shown, the curved arm portion 510 passes through the cover seat 3, and the rod portion 41 passes through the cover seat 3. In other words, the cover seat 3 is first installed on the back shell 1, and then the amplifying drive arm 5 is installed, and then the lever 4 is installed. By centrally hingedly connecting the switch button 6, the lever 4 and the amplifying drive arm 5 on the cover seat 3, it is helpful to simplify the internal transmission structure of the switch.

[0029] Furthermore, if Fig. 9 As shown, the pressed end 52 is distributed at the left and right ends of the amplifier driving arm 5, which is beneficial to increasing the effective touch range of the switch button 9. For example, pressing the lower left end of the switch button 9 or the lower right end of the switch button 9 with a finger can effectively push the corresponding pressed end 52.

[0030] Furthermore, if Fig.10 As shown, the push end 51 is formed into an arc surface, such as Figure 8 As shown, a sliding plane 411 is formed on the rod portion 41. Figure 4 As shown, the push end 51 is closely connected with the corresponding sliding plane 411, so when the amplifier driving arm 5 swings, the push end 51 and the corresponding sliding plane 411 will slide relative to each other and roll slightly. By setting the above-mentioned push end 51 and sliding plane 411, the amplifier driving arm 5 and the rod portion 501 are in line contact, which is conducive to the flexible sliding of the push end 51 relative to the sliding plane 411.

[0031] Furthermore, if Fig.11 As shown, a limiting step 101 is formed in the front end of the back shell 1. Fig.12 As shown, a pressing column 61 for contacting the pressed end 52 is formed on the rear side of the switch button 6. Figure 4 As shown, the pressed end 52 can be clamped between the limiting step 101 and the pressing column 61, so when the upper end (or lower end) of the switch button is pressed backward with a finger, specifically the pressing column 61 pushes the corresponding pressed end 52 backward in a contact manner, and when the switch switching is completed, the pressed end 52 is blocked by the limiting step 101, thereby preventing the switch button 6 from becoming loose.

Claims

1. A bipolar drive switch, comprising a switch button (6) and two sets of switch switching mechanisms (2), wherein the switch button (6) is arranged at the front side of the switch switching mechanism (2), the switch button (6) is swingably arranged, and the switch switching mechanism (2) is provided with a switch rocker (21) and a tongue (23) for moving the switch rocker (21), characterized in that: The two groups of switch switching mechanisms (2) are arranged side by side on the left and right sides; further comprising a lever (4), the lever (4) being swingably arranged around a horizontal axis, the lever (4) comprising a base (40), the left and right ends of the base (40) respectively forming lever hinge positions (42), the rear side of the base (40) forming two rod portions (41), the front portions of the lever tongues (23) respectively slidingly arranged in the corresponding rod portions (41); further comprising an amplifying drive arm (5), the amplifying drive arm (5) being swingably arranged around a horizontal axis, the amplifying drive arm (5) forming a drive arm hinge position (50), the two amplifying drive arms (5) being symmetrically distributed up and down about the lever hinge position (42), the amplifying drive arm (5) One end of the arm (5) is provided with a push end (51) for contacting the outer wall of the rear end portion of the rod portion (41), and the other corresponding end of the amplifying driving arm (5) is formed with a pressed end (52) for correspondingly contacting the rear portion of the switch button (6), and the amplifying driving arm (5) is formed with a curved arm portion (510) that is bent backwards, and the curved arm portion (510) is formed between the driving arm hinge position (50) and the push end (51), and the driving arm hinge position (50) is provided between the push end (51) and the pressed end (52), and the distance from the push end (51) to the driving arm hinge position (50) is greater than the distance from the pressed end (52) to the driving arm hinge position (50).

2. The bipolar drive switch according to claim 1, characterized in that: The invention also comprises a back shell (1) and a cover seat (3), wherein the switch switching mechanism (2) is arranged in the back shell (1), the cover seat (3) is arranged on the front side of the tongue (23), and the front side of the cover seat (3) is formed with a key hinge shaft (31), a lever hinge hole (32) and a drive arm hinge hole (33), wherein the key hinge shaft (31) and the lever hinge hole (32) are coaxially arranged, the switch key (6) and the cover seat (3) are hinged on the key hinge shaft (31), the lever hinge position (42) is adaptively connected to the corresponding lever hinge hole (32), the drive arm hinge position (50) is adaptively connected to the corresponding drive arm hinge hole (33), the curved arm portion (510) passes through the cover seat (3), and the rod portion (41) passes through the cover seat (3).

3. The bipolar drive switch according to claim 2, characterized in that: The pressed ends (52) are distributed at the left and right ends of the amplifying driving arm (5).

4. The bipolar drive switch according to any one of claims 1 to 3, characterized in that: The push-pull end (51) is formed as an arc surface, a sliding plane (411) is formed on the rod portion (41), and the push-pull end (51) is abutted and connected to the corresponding sliding plane (411).

5. The bipolar drive switch according to any one of claims 2 to 3, characterized in that: A limiting step (101) is formed in the front end of the back shell (1), and a pressing column (61) for contacting the pressed end (52) is formed on the rear side of the switch button (6), and the pressed end (52) can be clamped between the limiting step (101) and the pressing column (61).

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