WO2013063970A1 - Photoelectric induction pedal signal collector - Google Patents

Abstract

A photoelectric induction pedal signal collector. Two circuit boards (9) are mounted on a plastic plate (6) of a bottom box (5). A pair of transmitting light emitting diode and receiving light emitting diode (10, 11) is mounted on the circuit board (9). A rotation shaft sleeve (12) is welded at two sides of the bottom box (5). A rear shaft (13) passes through the rotation shaft sleeve (12). Swinging ring screws (15) are sleeved at two sides of the rear shaft (13). A front shaft (19) connects left and right shaft sleeves (16, 18) and a rotation shaft screw (17). Two nuts are mounted on the rotation shaft screw (17). A spring shaft sleeve (8) is arranged in the middle of the bottom box (5). A spring (7) is arranged on the spring shaft sleeve (8). Raised portions at left and right sides of a hardware bracket (2) on a top box (1) are staggered. A plurality of ribs is arranged on the surface of the top box (1). Circuits in the two circuit boards (9) are completed in the following wiring manner: two capacitors, a current-limiting resistor, and two transmitting light emitting diodes are connected in parallel, each of the two transmitting light emitting diodes is connected to a resistor in series, and each wiring pole (2, 4) in the two circuit boards is connected to a receiving light emitting diode corresponding to the transmitting light emitting diode. Through the photoelectric induction pedal signal collector, the problems of false operation caused by a pedal control signal, contact aging, an electrical failure, and an electric arc generated by a contact can be solved, and the service life and safety performance can also be improved.

Description

 Manual photoelectric double induction pedal signal collector

Technical field

 The invention relates to an electrically controlled photoelectric double induction foot signal collector. Background technique

 At present, there are various types of foot switch styles on the market, but basically they are all made by the principle of micro switch. The jog switch is a quick switch that is pressed and actuated, also called a contact switch. The working principle is: external mechanical force (hand pressure, pedal) through the transmission component (by pin, button, lever, roller, etc.) to exert force on the action reed, and the energy is accumulated to the critical point, resulting in instantaneous action, The moving contact at the end of the action reed is quickly turned on or off with the fixed contact. When the force on the transmission element is removed, the action reed generates a reverse action force, and when the reverse stroke of the transmission element reaches the critical point of action of the reed, the reverse action is instantaneously completed. Due to the small contact pitch of the micro switch, short stroke, low power and fast switching, the pedal control signal will cause malfunction when the hands and feet are engaged, and it is prone to safety accidents. The moving contact is in contact with the fixed contact. It will generate an electric arc, it is unsafe and the contact is easy to age. The reed is prone to metal fatigue after a long time, which makes the electrical and mechanical control of the electrical and mechanical equipment fail, and the service life is low. Summary of the invention

 In order to overcome the problems of malfunction of the pedal control signal, aging of the switch contacts, electrical failure of the reed metal, arcing caused by contact contact, and in order to improve the service life and safety performance, we have designed a photoelectric Dual inductive foot signal collector.

The technical solution adopted by the patent of the present invention solves the technical problem: a plastic plate (6 in FIG. 1) is installed in a bottom box of a pressing member (5 in FIG. 1), and the plastic plate serves as an insulating function; Two boards (9 in Figure 1), three boards on each of the two boards (1, 2, 3, 4, 5, 6 in Figure 7), and a pair of normally closed emission lights on the right board. Diode and receiving LED (10 in Figure 1), a pair of normally open emitting LEDs and receiving LEDs are mounted on the left board (11 in Figure 1); a wire locking clip is mounted under the plastic board (4 in Figure 1) ), used to lock the output wire to prevent the wire from being pulled out; a corresponding threading hole (21 in Fig. 3) is drilled on the bottom box below the locking buckle to lead the output line; The shaft sleeve (12 in Fig. 1), the two shaft sleeves are provided with a rear shaft (13 in Fig. 1), a rectangular groove is machined on one side of the rear shaft, and the screw sleeve is machined with a screw hole for positioning pins ( In Figure 1 19), the rear axle is fixed to avoid rear axle displacement; a lifting eye screw is respectively arranged on both sides of the rear axle (figure 1 in 15); the bottom of the bottom box is welded with a left sleeve (fig 1) 16) and a right bushing (18 in Fig. 1), use a front axle (19 in Fig. 1) to connect the left and right bushings and the rotating shaft screw (17 in Fig. 1); the rotating shaft screw and the lifting ring The screw can be rotated around the respective shafts. Therefore, the user can adjust the angle at will according to the needs; the two lifting ring screws and the rotating shaft screw are respectively equipped with two nuts, which are used for installing and locking the foot switch; Welded with a spring bushing (8 in Figure 1), used to position the spring (7 in Figure 1) to ensure that the spring expands and contracts in a certain direction; there is a spring on the bushing (7 in Figure 1), this spring is to ensure the top The box (1 in Fig. 1) is restored to its original position without sufficient external force; the top box is welded with a special-shaped hardware bracket (2 in Fig. 1), and the left and right ends of the shaped hardware bracket are raised M, N ( Figure 7) Displaced with each other, the top box is in the right photoelectric induction part of the M-end tribe of the shaped metal bracket when there is no external force. When the top box is under sufficient external force, the M end leaves the right photoelectric sensing part and reaches the lowest position. When the N end just falls on the left photoelectric sensing part, the purpose is When the left and right photoelectric sensor emits and accepts the model, a certain time difference is generated to prevent the pedal control signal, and the hand and foot cooperate to cause a malfunction; the bottom of the special-shaped hardware bracket is provided with a plastic to cushion the external hardware bracket. The deformation occurs; the top box is stamped with a plurality of ribs, the purpose is to increase the friction and prevent the pedal from slipping; the wiring mode of the circuit board: two capacitors, one current limiting resistor and two in parallel in the input line A transmitting light emitting diode, two emitting light emitting diodes respectively have a resistor connected in series, and the connecting poles 2 and 4 respectively have a receiving light emitting diode corresponding to the emitting light emitting diode in series; the working voltage of the line is 5-6 volts DC.

 Hereinafter, the present invention will be further described with reference to the accompanying drawings and embodiments. DRAWINGS

 Figure 1 is an exploded view of the present invention and is also an abstract drawing;

 Figure 2 is a front view;

 Figure 3 is a bottom view;

 Figure 4 is a right side view;

 Figure 5 is a cross-sectional view taken along line A-A of Figure 2;

 Figure 6 is a cross-sectional view taken along line B-B of Figure 2;

 Figure 7 is a cross-sectional view taken along line C-C of Figure 2;

 Figure 8 is a cross-sectional view taken along line D-D of Figure 3;

 Figure 9 is an electrical schematic diagram;

Figure 1. Top box, 2. Shaped hardware bracket, 3. Rubber pad, 4. Wire lock buckle, 5. Bottom box, 6. Plastic plate, 7. Spring, 8. Spring bushing, 9. Circuit board, 10. Right photocell, 11. Left photocell, 12. Rotary bushing, 13. Rear axle, 14. M6 nut, 15. Eyebolt screw, 16. Left bushing, 17. Shaft screw, 18. Right bushing, 19 Front axle, 20. positioning pin, 21. threading hole. Concrete real In Fig. 1, a 90mmX 35mm X 3mm plastic plate is mounted in a bottom box of 200mm long, 100mm wide, 26mm and 40mm in height and 1.5mm in thickness, and two circuit boards are mounted on the plastic board. There are three wiring poles on the two circuit boards, a pair of normally-closed emitting light-emitting diodes and receiving light-emitting diodes are mounted on the right circuit board, and a pair of normally-on emitting light-emitting diodes and receiving light-emitting diodes are mounted on the left circuit board; Lock the output wire, the output line is from the threading hole; the bottom box is welded with a Φ 12 X 10 rotating sleeve, the two rotating sleeves are covered with a rear axle of Φ 6, and the rear axle is machined with a rectangular groove width. 5mm, deep lmm, and the shaft sleeve is machined with a m4 screw hole; the rear shaft is respectively sleeved with an m6 ring screw; the bottom of the bottom box is welded with a Φ 12mm X 27mm sleeve, with a Φ 10mm front axle The left and right sleeves and the shaft screw are connected; one middle part of the bottom box is welded (i> 20mmX 10mm, 2mm thick spring bushing, the bushing has a wire diameter Φ 2mm spring; the top box is welded with a special shaped hardware branch) The protruding parts of the left and right ends of the special-shaped hardware brackets ^1, N (Fig. 7) are offset by 15mm from each other; a plastic is installed at the bottom of the shaped hardware bracket; a plurality of ribs are stamped on the top box surface; In the input line, there are two 104P capacitors in parallel, one 4K7 current limiting resistor and two emitting LEDs. The two transmitting LEDs are respectively connected in series with a 470R resistor. The connecting poles 2 and 4 are respectively connected in series with one emitting LED. Corresponding receiving LED; The operating voltage of this line is 5 VDC.

Claims

Claim 1. Photoelectric double-inductive foot signal collector, which is characterized in that: a plastic plate is installed in a bottom box of a pressing member; two circuit boards are mounted on the plastic board, and three circuit boards are respectively arranged on the two circuit boards. a pair of normally-closed light-emitting diodes and receiving light-emitting diodes are mounted on the right circuit board, and a pair of normally-on emitting light-emitting diodes and receiving light-emitting diodes are mounted on the left circuit board; a wire locking buckle is mounted under the plastic board; Corresponding to the bottom box is drilled with a threading hole; the bottom box is welded with a rotating sleeve on both sides, two rotating sleeves are provided with a rear shaft, one side of the rear shaft is machined with a rectangular groove, and the rotating sleeve is machined with a screw Hole; a lifting ring screw is respectively arranged on both sides of the rear axle; a bottom sleeve and a right sleeve are welded on the bottom surface of the bottom box, and the left and right sleeves and the rotating shaft screw are connected by a front shaft; two rings Two nuts are respectively arranged on the screw and the rotating shaft screw; a spring bushing is welded in the middle of the bottom box, and a spring is arranged on the bushing; a special-shaped hardware is welded on the top box Frame, shaped hardware bracket left and right convex parts M, N are staggered from each other, shaped metal bracket M end tribe in the right photoelectric sensing part; shaped plastic bracket bottom is installed with a piece of plastic; top box surface stamped with multiple ribs; Wiring method of the circuit board: There are two capacitors, one current limiting resistor and two emitting light-emitting diodes connected in parallel in the input line. The two transmitting light-emitting diodes are respectively connected in series with one resistor, and the wiring poles 2 and 4 are respectively connected in series with one. A light-emitting diode corresponding to the receiving light-emitting diode is emitted. 2. The photoelectric double-inductive foot signal collector according to claim 1, wherein: a bottom box having a length of 200 mm, a width of 100 mm, and a height of 26 mm and 40 mm at both ends and a thickness of 1.5 mm is installed. A 90mmX 35mmX 3mm plastic board with two circuit boards on the plastic board. There are three wiring poles on the two boards. A pair of normally-closed LEDs and receiving LEDs are mounted on the right board. A pair of normally open emitting light emitting diodes and receiving light emitting diodes are installed; a wire locking buckle locks the output wires, and an output line is from the threading hole; a Φ 12 X 10 rotating sleeve is welded on both sides of the bottom box, and the two rotating shaft sleeves are worn The rear axle of the root Φ 6 is machined with a rectangular groove width of 5 mm and a depth of lmm, and the rotary sleeve is machined with an m4 screw hole; the rear axle is respectively provided with an m6 ring screw; the bottom surface of the bottom box is welded A Φ 12mm X 27mm bushing is used to connect the left and right bushings and the rotating shaft screw with a Φ 10mm front axle; a 20mmX 10mm thick 2mm spring bushing is welded in the middle of the bottom box, and a wire diameter is provided on the bushing. Φ 2 Mm spring; There is a special-shaped hardware bracket welded on the top box. The protruding parts of the left and right ends of the special-shaped hardware brackets are offset by 15mm from each other _; a plastic is installed at the bottom of the special-shaped hardware bracket.  3. The photoelectric dual-inductive foot signal collector according to claim 1, wherein: two 104P capacitors, one 4K7 current limiting resistor and two transmitting light-emitting diodes are connected in parallel in the input line, and two emission signals are used. The LEDs are respectively connected in series with a 470R resistor, and the terminals 2 and 4 are respectively connected in series with a receiving LED corresponding to the emitting LED; the operating voltage of the line is 5-6 VDC.  4. The photoelectric dual-inductive pedal signal collector as claimed in the claims, characterized in that: the line operating voltage is DC ^.