CN202230921U - Reinforced structure of switch foot - Google Patents

Abstract

The utility model discloses a switch foot stool reinforcing structure, in particular to a foot stool reinforcing structure which utilizes a light emitting diode to provide a light source and is provided with a metal positioning foot for welding; the device comprises a base, an accommodating groove, a shaft tube, a metal frame part, a light-emitting diode and a plurality of elastic conductive sheets, wherein the accommodating groove is formed on the base, the electrode group and the elastic conductive sheets are arranged in the accommodating groove, the shaft tube is used for opening and closing the electrode group through the elastic sheets in a sliding manner, the outer edge of the accommodating groove is provided with the metal frame part which is sleeved on the shaft tube, the frame part is provided with at least one positioning pin extending to the bottom of the base, the shaft tube is internally provided with the light-emitting diode, and two pins of the; therefore, the base is welded and inserted on the circuit board through the positioning pins so as to improve the positioning stability of the micro switch.

Description

Reinforced structure of switch foot

technical field

The utility model provides a foot seat strengthening structure of a micro switch, in particular to a foot seat strengthening structure which utilizes light-emitting diodes to provide light sources and has metal positioning feet for welding, especially the metal frame in the base of the switch , and positioning feet extending from the frame to the bottom of the base.

Background technique

At present, there are many kinds of specifications and sizes of electronic switches, and the scope of application is quite wide. However, electronic switches commonly used in precision equipment, small equipment or small electrical appliances are mostly called smart switches, micro switches or light touch switches. Switches, due to their relatively short and thin size, can be used in electronic equipment or instruments with limited space or where only small or micro switches can be installed, such as industrial applications such as 3C electronic products or microcomputers.

It is known that the traditional electronic micro switch is mainly composed of a plastic base, a movable shaft and a button, and its action mode is to press the button to drive the movable shaft to drive the positive and negative electrodes inside the base to interact Contact and conduction to achieve the purpose of turning on and off the power supply; in addition, the bottom of the base is generally provided with a plurality of conductive terminals for positive and negative electrodes, and a number of plastic positioning posts extending downward from the bottom of the base. The positioning column is inserted into the circuit board of the aforementioned electronic equipment or instrument, and at the same time, the conductive terminal is welded to the circuit on the surface of the circuit board.

However, since the base is only positioned on the circuit board by means of hot riveting or dispensing with plastic positioning posts, under the influence of lateral stress when the microswitch is pressed for a long time, it is easy to cause the base to loosen and cause Part of the conductive terminal is separated from the surface circuit of the circuit board, resulting in an open circuit between the micro switch and the circuit board, and losing the original function of turning on and off the power supply; therefore, the above problems will be solved by those skilled in the art where the difficulty lies.

Utility model content

In view of this, the technical problem to be solved by the utility model is to provide a leg strengthening structure which utilizes light-emitting diodes to generate a light source and has metal positioning legs for welding. the

In order to solve the above-mentioned technical problems, the technical solution of the utility model is realized in the following way: A kind of switch foot reinforcement structure, it is characterized in that, comprises: a base, the end side forms a receiving groove, a groove of this receiving groove The outer edge of the mouth is formed with a first end surface and a second end surface with different heights, the distance from a groove bottom of the accommodating tank to the first end surface is greater than the distance from the groove bottom to the second end surface; an electrode group is set In the accommodating groove, there are a plurality of conductive terminals extending to the bottom of the base; a shaft tube is slidably arranged in the accommodating groove, and is guided by the inner wall of the accommodating groove to approach and separate from the electrode group. A pair of cylinder grooves open to the outside are formed on the cylinder; a conductive shrapnel is interposed in the accommodating groove between the shaft cylinder and the electrode group, and is driven by the shaft cylinder to touch and disengage the electrode group, and connect and Cut off the electrode group; a metal frame is sleeved on the periphery of the shaft cylinder and positioned by the second end surface brake, the frame has at least one positioning foot, and the gap between the notch of the accommodating groove and the bottom of the base At least one end groove is formed, the positioning foot extends to the bottom of the base along the end groove; and a light-emitting diode is fixed in the cylinder groove, the light-emitting diode has two pins, and the two sides of the base respectively form a communicate with the through hole of the electrode group, the pins respectively extend into the through hole to connect the electrode group, and the pins respectively accept the first end surface braking and positioning, so that the frame and the pins form a certain distance between them.

Further, the first end surfaces are protrudingly formed on the bases on both sides of the notch of the accommodating groove.

Further, the electrode group includes a positive electrode and a negative electrode, and more than one perforation is respectively formed on the positive electrode and the negative electrode, and the perforations of the positive electrode and the negative electrode are respectively connected to the through hole, and the connection of the light emitting diode The pins are respectively connected in series in the through holes of the positive electrode and the negative electrode.

Further, the end of the pin forms a turning portion capable of holding the inner wall of the through hole.

Further, the through hole is exposed outside the base along with the extension of the positive electrode and the negative electrode, the pins of the light-emitting diodes respectively extend out of the base, and the ends of the pins form a hole that can be connected in series with the exposed The bend inside the perforation outside the base.

Further, the electrode group also includes a positive switch electrode and a negative switch electrode, and the shrapnel is in the shape of a circular arc convex, and can be attached to and separated from the positive switch electrode and the negative switch electrode.

Further, the inner wall of the accommodating groove around the positive switch electrode and the negative switch electrode is provided with a plurality of positioning points corresponding to the position ring of the peripheral contour of the elastic piece, and the elastic piece is accommodated and positioned between the positioning points.

Further, a guide groove communicating with the barrel groove is formed on both sides of the shaft cylinder respectively, and the through holes are respectively placed on the bases on both sides of the shaft cylinder, and the pins of the light-emitting diodes pass through the guide grooves respectively. extending into the through hole.

Further, the outer wall of the shaft cylinder forms an annular stepped surface capable of braking the frame.

Further, the frame member has a set of openings disposed on the periphery of the shaft cylinder.

Further, a plurality of protrusions are provided on the base around the second end surface corresponding to the peripheral contour of the frame, and the frame is accommodated and positioned between the protrusions.

Further, the positioning foot forms a downward-facing welding surface on the bottom of the base, and an insertion portion extending from the welding surface to the bottom of the base.

Further, two symmetrical lugs are formed on the base next to the first end surface corresponding to the peripheral contour of the pin, and the pin is accommodated and positioned between the lugs.

Further, the lug is subjected to heat riveting to clamp the pin.

Further, the through hole is located on the side of the first end face, and a groove communicating with the outer edge of the through hole is formed on the base beside the first end face, and glue is filled in the groove to position the contact. foot.

Further, it further includes a light-transmitting button made of soft high-temperature-resistant material, which is arranged on the shaft tube at a position exposed outside the accommodating groove, and covers the barrel groove.

Further, the soft high temperature resistant material is silica gel.

The technical effects achieved by the utility model are as follows: the utility model can utilize light-emitting diodes to generate light sources, and utilize the metal positioning feet for welding to strengthen the stability of the base being positioned on the surface of the circuit board, and overcome the above-mentioned prior art that only uses plastic positioning The post is positioned on the circuit board, and under the influence of long-term lateral stress when pressed, it is easy to cause the problem of loosening of the base and the problem of conductive terminals detaching from the surface of the circuit board, thereby improving the positioning stability of the micro switch .

Description of drawings

Fig. 1 is a perspective view of a preferred embodiment of the utility model;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the back view of Fig. 2;

Fig. 4 is the left side view of Fig. 2;

Fig. 5 is the top view of Fig. 2;

Fig. 6 is the bottom view of Fig. 2;

Figure 7 is the A-A sectional view of Figure 2;

Fig. 8 is a bottom perspective view of Fig. 1;

Fig. 9 is a three-dimensional exploded view of the base, shrapnel, frame and light-emitting diodes of the embodiment in Fig. 1;

Fig. 10 is a perspective view of the arrangement of the electrode group, shrapnel, frame and light-emitting diodes in the embodiment of Fig. 1;

Fig. 11 is a three-dimensional exploded view of Fig. 1;

Fig. 12 is a diagram of the use state of Fig. 4 .

[Description of main component symbols]

10 Base 11 Holder

111, 311 Notch 112 Groove bottom

113 Anchor point 12 First end face

13 Second end face 14 Positioning post

15 End slot 16 Through hole

17 bumps 18 lugs

19 Groove 20 Electrode group

21 Positive electrode 22 Negative electrode

23 Conductive terminal 24, 25 Perforation

26 Positive switch electrode 27 Negative switch electrode

30 Shaft barrel 31 Barrel groove

32 Guide groove 33 Step surface

34 Hook 40 Shrapnel

50 Frame Components 51 Positioning feet

52 Welding surface 53 Insertion part

54 Ports 60 LEDs

61 Positive pin 62 Negative pin

63 Bending part 64 Bending part

70 Buttons 80 Circuit Board

81 The first positioning hole 82 The second positioning hole

83 Lines 84 Eat tin noodles.

Detailed ways

Please refer to Fig. 1, which reveals a perspective view of a preferred embodiment of the present invention, and with reference to Fig. 2 to Fig. 11, illustrates the reinforced structure of the switch base of the present invention, which includes a rectangular plastic base 10, an electrode group 20, An oval shaft cylinder 30, a conductive shrapnel 40, a metal frame 50 and a light emitting diode 60; wherein,

An accommodating groove 11 is formed on one end side of the base 10, and the outer edge of a notch 111 of the accommodating groove 11 is formed with two first end surfaces 12 and a second end surface 13 of different heights, and one of the accommodating groove 11 The distance h1 from the groove bottom 112 to the first end surface 12 is greater than the distance h2 from the groove bottom 112 to the second end surface 13, and the first end surface 12 protrudes from the base 10 formed on both sides of the notch 111 of the accommodating groove 11. and the bottom of the base 10 extends downward to form a plastic positioning column 14 .

The electrode group 20 is arranged in the containing tank 11 and positioned on the bottom 112 of the containing tank 11. The electrode group 20 includes a positive electrode 21, a negative electrode 22, a positive switch electrode 26 and a negative switch electrode 27. , the positive and negative electrodes 21, 22 and the positive and negative switch electrodes 26 and 27 respectively extend to the inside of both sides of the base 10, and the positive and negative electrodes 21 and 22 and the positive and negative switch electrodes 26 and 27 each have a plurality of The conductive terminal 23 extends to the bottom of the base 10 .

One end of the shaft cylinder 30 is slidingly arranged in the accommodation groove 11, and can be guided by the inner wall of the accommodation groove 11 to approach and separate from the positive and negative switch electrodes 26, 27 of the electrode group 20 at the bottom 112 of the groove. One end is exposed outside the accommodation groove 11 to form a cylindrical groove 31 that is open to the outside. The part of the shaft cylinder 30 exposed outside the accommodation groove 11 can be pushed and touched by an external force, so that the shaft cylinder 30 moves toward the groove bottom 112 .

The conductive elastic piece 40 is interposed in the accommodating groove 11 between one end of the shaft cylinder 30 and the positive and negative switch electrodes 26, 27 of the electrode group 20, and can elastically drive the shaft cylinder 30 to move toward the notch 111, and conducts electricity. The shrapnel 40 can be driven by the shaft cylinder 30 to touch the positive and negative switch electrodes 26 and 27 of the electrode set 20 , so as to switch on and off the positive and negative switch electrodes 26 and 27 of the electrode set 20 .

The metal frame member 50 has a through opening 54, the frame member 50 is sleeved on the periphery of the shaft cylinder 30 through the through opening 54, and is positioned on the outer edge of the notch 111 of the accommodating groove 11 by being braked by the second end surface 13, The bottom edge of the frame member 50 is extended to form at least one positioning foot 51, and at least one end groove 15 is formed between the notch 111 of the accommodating groove 11 and the bottom of the base 10, and the positioning foot 51 extends along the end groove 15 to Base 10 bottom.

In this implementation, the positioning feet 51 can be two, which are respectively formed on both sides of the bottom edge of the frame member 50, and the end slots 15 are equal to the positioning feet 51; After the end groove 15 is installed between the notch 111 and the bottom of the base 10, the positioning feet 51 are respectively constrained by the end groove 15, and the positioning is made by the height difference between the end groove 15 and the surface of the base 10. The surface of the feet 51 is evenly aligned with the surface of the base 10 , so that the positioning feet 51 are not easily deformed by external force.

The light-emitting diode 60 is fixed in the barrel groove 31, and the light-emitting diode 60 has a positive pole pin 61 and a negative pole pin 62. 22 of the through hole 16, the positive and negative pins 61, 62 are placed on both sides of the base 10, and extend into the through hole 16 to connect the positive and negative electrodes 21, 22 of the electrode group 20, and the The positive and negative pole pins 61, 62 are respectively braked by the first end surface 12 on both sides of the base 10, and are positioned on both sides of the shaft cylinder 30, so that the frame member 50 and the positive and negative pole pins 61, 62 An insulated specific distance h3 is formed between them to prevent short circuit between the frame member 50 and the positive and negative pins 61 and 62 .

The above structure can be used to implement the utility model. The base 10 is placed on the surface of a circuit board 80 (as shown in FIG. 12 ), and the surface of the circuit board 80 has an adjacent first positioning hole 81 and A plurality of second positioning holes 82, and a plurality of metal lines 83, so that the positioning feet 51 are respectively inserted in the second positioning holes 82, the conductive terminals 23 are respectively attached to the lines 83, and the positioning posts 14 are inserted In the first positioning hole 81 , the positioning post 14 is positioned on the circuit board 80 by heat riveting or glue dispensing.

Subsequently, the circuit board 80 can be transferred to the tin furnace for surface mount (SMT) operations, so that the solder in the tin furnace solders the positioning feet 51 in the second positioning holes 82, and solders the conductive terminals 23 on the circuit. 83, so that the positive and negative electrodes 21, 22 and the positive and negative switch electrodes 26 and 27 of the electrode group 20 are connected to the circuit 83 respectively, and the electric energy of the circuit 83 can pass through the positive and negative electrodes 21 and 22 and the positive , the negative pins 61 and 62 are conducted to the light emitting diode 60 to drive the light emitting diode 60 to emit light.

It is worth mentioning that the base 10 can further improve the positioning stability of the micro-switch through the positioning feet 51 directly welded on the surface of the circuit board 80 .

In general use, the shaft cylinder 30 can be driven by an external force to push the conductive shrapnel 40 to contact the positive and negative switch electrodes 26, 27, so as to connect the positive and negative switch electrodes 26, 27; when the shaft cylinder is driven After the external force of 30 disappears, the elastic force of the conductive shrapnel 40 will drive the shaft cylinder 30 to reset and cut off the positive and negative electrodes 21 and 22 .

Accordingly, the utility model can utilize the light-emitting diode 60 to generate a light source, and utilize the metal positioning feet 51 for welding to strengthen the stability of the base 10 positioned on the surface of the circuit board 80, so as to overcome the above-mentioned prior art that only uses the plastic positioning column Positioned on the circuit board, under the influence of long-term lateral stress during pressing, it is easy to cause the problem of loosening of the base and the problem of the conductive terminal detaching from the circuit on the surface of the circuit board.

Other embodiments of the present utility model are further described below:

One or more perforations 24, 25 are respectively formed on the positive and negative electrodes 21, 22, and the perforations 24 of the positive and negative electrodes 21, 22 are respectively connected to the through holes 16 inside the both sides of the base 10, The positive and negative pins 61 and 62 of the LED 60 are respectively connected in series in the through holes 24 of the positive and negative electrodes 21 and 22 .

The ends of the positive and negative pins 61, 62 form a turn-turn portion 63 capable of holding the inner wall of the through hole 24, which is mainly when the positive and negative pins 61, 62 pass through the positive and negative electrodes 21, 22. After the hole 24 is punched, the part of the positive and negative pins 61, 62 located in the hole 24 is rotated to form the curved portion 63, so that the curved portion 63 contacts and holds the inner wall of the hole 24 to connect the positive and negative terminals. The electrodes 21 and 22 ; in addition, the turning portion 63 and the inner wall of the through hole 24 can also be joined by soldering or welding technology to ensure the mutual conduction between the LED 60 and the electrode group 20 .

The part penetrates the hole 25 and is exposed to the top of the base 10 on both sides as the positive and negative electrodes 21 and 22 extend. The positive and negative pins 61 and 62 of the LED 60 extend along the through hole 16 to The other end of the base 10 is outside, and the ends of the positive and negative pins 61, 62 extend from the bent portion 63 to form an ㄇ-shaped bend that can be connected in series in the through hole 25 exposed outside the base 10 Section 64.

In this way, the positive and negative pins 61 and 62 can be combined with the positive and negative electrodes 21 and 22 at two places, such as the turning part 63 and the bending part 64, respectively, so as to ensure that the combination of the light emitting diode 60 and the electrode group 20 is stable. properties, and prevent the light-emitting diode 60 from floating up and falling off; in addition, the bending portion 64 and the inner wall of the through hole 25 can also be joined by soldering or welding technology.

The shrapnel 40 has a circular arc convex shape, so that the periphery of the shrapnel 40 contacts the negative switch electrode 27 (as shown in Figure 7), and the central part of the shrapnel 40 is separated from the positive switch electrode 26. When the shaft cylinder 30 is driven by an external force, it can push The central part of the contact shrapnel 40 contacts the positive switch electrode 26, so that the shrapnel 40 is connected to the positive and negative switch electrodes 26, 27, and the central part of the shrapnel 40 elastically resets after the external force of the drive shaft cylinder 30 disappears, and breaks away from the positive switch electrode 26. , Negative switching electrodes 26,27.

The inner wall of the accommodating groove 11 around the positive and negative switch electrodes 26, 27 is provided with a plurality of positioning points 113 corresponding to the position ring of the peripheral contour of the elastic piece 40, and the elastic piece 40 is accommodated and positioned between the positioning points 113; In this way, it is ensured that the elastic piece 40 does not move excessively in the accommodating groove 11 , thereby preventing the problem of poor conduction during opening and closing operations.

Both sides of the shaft cylinder 30 are respectively formed with a guide groove 32 communicating with the cylinder groove 31, and the guide groove 32 extends to a notch 311 of the cylinder groove 31. On the seat 10, the positive and negative pins 61, 62 of the light emitting diode 60 respectively extend into the through hole 16 along both sides of the shaft cylinder 30 through the guide groove 32; During this period, the positive and negative pins 61 and 62 can be avoided by the guide groove 32 .

The outer wall of the shaft cylinder 30 forms an annular stepped surface 33 (as shown in FIG. 7 ) capable of braking the frame member 50 , so that the frame member 50 constrains the shaft cylinder 30 to move in the accommodating groove 11 through the stepped surface 33 .

A plurality of plastic protrusions 17 are arranged on the base 10 around the second end surface 13 corresponding to the peripheral contour of the frame member 50. The frame member 50 is accommodated and positioned between the protrusions 17, and the protrusions The block 17 can accept heat riveting to clamp the frame member 50 to prevent the frame member 50 from shaking, floating up or loosening from the base 10 .

The positioning foot 51 forms a downward facing welding surface 52 at the bottom of the base 10, and an insertion portion 53 extending from the welding surface 52 to the bottom of the base 10. The positioning foot 51 is inserted into the circuit through the insertion portion 53. In the second positioning hole 82 of the board 80 (as shown in FIG. 12 ), and the surface of the circuit board 80 on the outer edge of the second positioning hole 82 is provided with a metal tin-eating surface 84, and the soldering surface 52 can be in contact with the tin-eating surface 84. In the tin furnace, the solder is welded between the welding surface 52 and the tin-eating surface 84 to further strengthen the stability of the welding positioning feet 51 on the circuit board 80 .

Two symmetrical plastic lugs 18 are formed on the base 10 next to the first end surface 12 corresponding to the peripheral contours of the positive and negative pins 61 and 62, and the positive and negative pins 61 and 62 are respectively accommodated. And it is positioned between the lugs 18 , and the lugs 18 can accept heat riveting to clamp the positive and negative pins 61 , 62 , and prevent the LED 60 from floating up and falling off.

The through hole 16 is located on the side of the first end face 12, and a groove 19 communicating with the outer edge of the through hole 16 is formed on the base 10 beside the first end face 12, and the glue is filled in the groove 19, and Position the positive and negative pins 61 and 62 of the LED 60 after the glue is cured.

In addition, the utility model further includes a light-transmitting button 70 (as shown in FIG. 11 ) made of soft high-temperature-resistant material, which is arranged on the shaft tube 30 at a position exposed outside the accommodating tank 11 and covers the tube slot 31 and light-emitting diodes 60; two hooks 34 that can buckle the button 70 are formed at the position adjacent to the notch 311 on the shaft tube 30, and the soft high-temperature-resistant material can be silica gel; Due to the high-temperature characteristics, the button 70 can enter the tin furnace along with the shaft tube 30 and the base 10, instead of having to install the button on the shaft tube after the base of the switch passes through the tin furnace as in the traditional way.

When the light-emitting diode 60 in the barrel groove 31 emits light, its light can be transmitted to the outside through the light-transmitting button 70, which can achieve the functions of indication and lighting; moreover, the button 70 is soft and elastic, which can effectively relieve the friction. In order to improve the durability of the switch to accept the impact of the impact.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (17)

1. A switch foot stool reinforcing structure is characterized by comprising:

the end face of the base is provided with a containing groove, the outer edge of a notch of the containing groove is provided with a first end face and a second end face which are different in height, and the distance from the bottom of the containing groove to the first end face is greater than the distance from the bottom of the containing groove to the second end face;

an electrode set, which is arranged in the containing groove and is provided with a plurality of conductive terminals extending to the bottom of the base;

a shaft cylinder, which is arranged in the containing groove in a sliding way and is guided by the inner wall of the containing groove to approach and separate from the electrode group, and a cylinder groove which is opened outwards is formed on the shaft cylinder;

the conductive elastic sheet is arranged in the accommodating groove between the shaft cylinder and the electrode group, is driven by the shaft cylinder to be attached to and detached from the electrode group, and is used for switching on and switching off the electrode group;

a metal frame member, which is sleeved on the periphery of the shaft cylinder and is braked and positioned by the second end face, wherein the frame member is provided with at least one positioning pin, at least one end slot is formed between the notch of the accommodating groove and the bottom of the base, and the positioning pin extends to the bottom of the base along the end slot; and

and the light-emitting diode is fixedly arranged in the barrel groove and provided with two pins, through holes communicated with the electrode group are respectively formed at the two side ends of the base, the pins respectively extend into the through holes to be connected with the electrode group, and the pins are respectively braked and positioned by the first end surface, so that a specific distance is formed between the frame part and the pins.

2. The switch foot rest reinforcing structure of claim 1, wherein the first end surfaces are respectively formed on the bases at two sides of the notch of the accommodating groove in a protruding manner.

3. The switch foot rest reinforcing structure according to claim 1, wherein the electrode assembly comprises a positive electrode and a negative electrode, the positive electrode and the negative electrode are respectively formed with more than one through hole, the through holes of the positive electrode and the negative electrode are respectively communicated with the through holes, and the pins of the light emitting diode are respectively connected in series in the through holes of the positive electrode and the negative electrode.

4. The switch foot rest reinforcing structure as claimed in claim 3, wherein the foot end of the foot is formed with a spiral bending portion capable of holding the inner wall of the through hole.

5. The switch socket reinforcing structure of claim 3, wherein the through holes are exposed to the outside of the base along with the extension of the positive electrode and the negative electrode, the pins of the light emitting diode are respectively extended to the outside of the base, and the ends of the pins form a bending part capable of being connected in series with the through holes exposed to the outside of the base.

6. The switch foot rest reinforcing structure of claim 1, wherein the electrode assembly further comprises a positive switch electrode and a negative switch electrode, and the elastic sheet is in a circular arc convex shape and can be attached to and detached from the positive switch electrode and the negative switch electrode.

7. The switch foot rest reinforcing structure of claim 6, wherein a plurality of positioning points are annularly arranged on the inner wall of the containing groove around the positive switch electrode and the negative switch electrode at positions corresponding to the peripheral contour of the elastic sheet, and the elastic sheet is contained and positioned between the positioning points.

8. The switch foot stool reinforcement structure of claim 1, wherein a guiding slot communicating with the tube slot is formed on both sides of the shaft tube, and the through holes are disposed on the base on both sides of the shaft tube, and the pins of the light emitting diode extend into the through holes through the guiding slot, respectively.

9. The switch foot reinforcing structure of claim 1, wherein the outer wall of the shaft barrel forms an annular step surface capable of braking the frame member.

10. The switch foot reinforcing structure of claim 1, wherein the frame member has a through opening sleeved on the periphery of the shaft cylinder.

11. The switch socket reinforcing structure of claim 1, wherein a plurality of protrusions are disposed around the second end surface of the base corresponding to the peripheral contour of the frame, and the frame is received and positioned between the protrusions.

12. The switch base reinforcing structure as claimed in claim 1, wherein the positioning leg forms a welding surface facing downward at the bottom of the base and an insertion portion extending from the welding surface to the bottom of the base.

13. The switch foot rest reinforcing structure of claim 1, wherein two symmetrical tabs are formed on the base beside the first end surface corresponding to the peripheral contour of the pin, and the pin is accommodated and positioned between the tabs.

14. The switch foot rest reinforcement structure of claim 13, wherein the tabs receive heat staking to secure the foot.

15. The switch foot rest reinforcing structure of claim 1, wherein the through hole is located beside the first end surface, a groove communicated with an outer edge of the through hole is formed on the base beside the first end surface, and glue is filled in the groove to position the pin.

16. The switch foot rest reinforced structure of claim 1, further comprising a transparent button made of a soft high temperature resistant material disposed on the shaft barrel at a position exposed outside the accommodating groove and covering the barrel groove.

17. The switch foot rest reinforced structure of claim 16, wherein the soft refractory material is silicone.

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