TW201527058A - Electric tool with multistage switch - Google Patents

Abstract

The present invention relates to an electric tool with multistage switch, which comprises an external casing, a driving assembly, a multistage type switch, a working component and an electricity storage device. The driving assembly is mounted in the external casing and provided with an electric connection box and an electric current rotating disk. The direction-switching switch of the multistage type switch is connected to the electric current rotating disk and used to change the driving direction of the tool. The safety switch is arranged at the grip of the external casing and connected with the starting switch. The working component connects to the driving assembly. The electric power of electricity storage device is electrically connected with the driving assembly. When in use, the direction-switching switch is first poked, then pressing the safety switch to lift the restriction to starting switch, and finally pressing the starting switch to drive the working component to act. Because the starting-up process requires correctly turning on the multistage type switch, it is helpful to reduce the risk of accidents caused by false firing the switch.

Description

Power tool with multi-section switch

The present invention is an electric power driven and pivoting power tool, which is a power tool having a multi-segment switch with a multi-segment switch to prevent accidental activation.

Hand-held power tools such as electric drills, electric handles and electric cutting machines are all common hardware tools in the industry. Through the combination of electric motor and transmission parts and external power supply, users can drive the power tool by pressing the start button. Homework, this type of power tool has the advantages of labor saving, convenient operation and high efficiency compared with purely manual hardware tools. The existing power tools such as electric drills and electric cutting machines have sharp tips and sharp edges. In addition, the power tool is dangerous when it is rotated, and the power tool is easy to start, so there is a risk of accidental contact, which is likely to cause damage to the user.

To this end, the existing power tool will be equipped with a safety switch to reduce the danger. When the safety switch is in the closed state, the start button will be restricted by the internal components and cannot be pressed, which can effectively reduce the user's false touch. Dangerous, however, there are still safety concerns in the setting of the two-stage switch. If the safety switch is not actually closed, there is still a risk of accidental contact and safety accidents.

In view of the foregoing shortcomings of the prior art, the present invention improves the prior art power tool, further reducing the possibility of accidents caused by a user accidentally touching the power tool.

In order to achieve the above object, the technical means adopted by the present invention is to provide a power tool with a multi-segment switch, comprising: an outer casing having a grip and a mounting area, the grip being located at the outer casing, and being mounted The extension is formed on one side edge of the grip; a drive assembly is mounted in the outer casing, the drive assembly has an electrical connection box and a current turntable, and the current turntable is disposed on the top wall of the electrical connection box; a multi-stage switch, The utility model is disposed at the grip of the outer casing, the multi-section switch has a direction switch, a safety switch and a start switch, the direction switch is connected with the current turntable, the safety switch is arranged in the outer casing and the end thereof protrudes from the grip On the outside, the start switch is connected to the electrical connection box and one side protrudes from the outer side of the grip, the other side can be abutted by the safety switch; a working part is connected to the drive assembly, and the working part protrudes at the top of the installation area At the wall surface, a power storage device is connected to the outer casing, and the power storage device is fixed at the other side edge of the grip and electrically connected to the electrical connection box of the driving assembly.

The power tool with a multi-segment switch, wherein the driving component has an electric motor and a gear box, the electric motor is provided with two input ends, the gear box is connected to the electric motor, and the electric connecting box is disposed in the grip and electrically connected to the electric motor, The electrical connection box has a first electrical connection piece, a second electrical connection piece, a third electrical connection piece and three electric wires, and the first electrical connection piece and the second piece connection piece are respectively disposed on the top wall surface of the electrical connection box The third connecting piece is located on the bottom wall of the electrical connection box, and one end of the three wires is respectively connected to the first electrical connecting piece, the second electrical connecting piece and the third electrical connecting piece, the first electrical connecting piece and the second electrical connecting piece The electric motors are electrically connected, that is, the other ends of the wires are respectively connected to the two input ends of the electric motor.

The power tool with a multi-segment switch, wherein the working component has a wire cutting fixed knife and a wire cutting movable knife, one end of the wire cutting fixed blade is fixed in the gear box and the other end protrudes outside the mounting area, the line One end of the movable knife is pivoted to cut the protruding end of the fixed knife, and the wire cutting movable knife is provided with a plurality of guiding teeth, which are formed around the other end of the movable cutting knife relative to the pivoting portion, the guiding tooth meshes In the gearbox, the wire-cutting movable knife is pivotally moved with its top pivotal joint under the drive of the drive assembly.

The power tool with a multi-segment switch, wherein the current turntable is pivotally disposed in the outer casing and located at the top wall of the electrical connection box, the current turntable has a bump protrudingly formed on the wall surface of the current turntable, the direction The switch has a dialing portion, a rod body and a perforation, and the opposite wall surface of the grip is provided with a long hole, and the dial portion is inserted through the long hole of the grip and protrudes outward, and the dial portion is long The hole is swung left and right, the rod body is formed on one side of the dialed portion and the rod body is pivotally connected in the outer casing body, and the through hole is formed at the end of the rod body, and the through hole is sleeved with the bump of the current turntable.

The power tool with a multi-segment switch, wherein the safety switch is a long cross-bar structure, and the two ends of the safety switch pass through two opposite wall faces of the grip.

The invention provides a multi-segment switch on the power tool, the multi-segment switch is connected to the driving component, wherein the direction switching switch is connected to the current dial, the direction switching switch is toggled to control the driving direction of the tool, and the safety switch prevents the starting switch from being In the abnormal operation sequence, the external force is pressed, the start switch is connected to the electrical connection box, and the double protection of the direction change switch and the safety switch is adopted, so that the power tool of the present invention needs to sequentially switch the direction change switch and press the safety switch to release the restriction. In order to press the start switch, it is effective to avoid accidents caused by accidental contact by anyone in an abnormal operation sequence. In addition, the safety switch has a structure with both ends, and can be pressed in different directions to release the restriction.

The technical means adopted by the present invention for achieving the intended purpose of the invention are further described below in conjunction with the drawings and preferred embodiments of the invention.

Referring to FIG. 1 and FIG. 4, the multi-segment switch power tool of the present invention comprises an outer casing 10, a driving assembly 20, a multi-segment switch, a working component 40 and a power storage device 50.

Referring to FIG. 1 and FIG. 4, the outer casing 10 is a hollow body, and has a loading space therein and has a grip 11, a base 12 and a mounting area 13, and the grip 11 is in the outer casing. At the middle of the section 10, which is an elongated formed elongated strip structure and is the grip of the user, the base 12 is formed on the bottom edge surface of the grip 11, and the mounting area 13 is extended to be formed on the top edge surface of the grip 11, the grip 11 The internal spaces of the base 12 and the mounting area 13 are in communication with each other.

As shown in FIG. 4 to FIG. 6 , the driving assembly 20 is mounted in the loading space of the outer casing 10 and has an electric motor 21 , a gear box 22 , an electrical connection box 23 , and a current turntable 24 , and an electric motor . 21 is installed in the installation area 13 and is provided with two input ends 211. The gear box 22 is connected to the power output end of the electric motor 21 and is located in the installation area 13. The electrical connection box 23 is disposed in the inner space of the grip 11 and is electrically connected. The electric motor 21 has a first electrical connection piece 231, a second electrical connection piece 232, a third electrical connection piece 233 and three electric wires 234, a first electrical connection piece 231 and a second piece connection piece. 232 are respectively disposed on two sides of the top wall of the electrical junction box 23, and the third connecting piece 233 is located on the bottom wall of the electrical connection box 23, and one end of the three wires 234 contacts the first electrical connecting piece 231 and the second electrical connecting piece 232, respectively. And the third electrical connection piece 233, wherein the first electrical connection piece 231 and the second electrical connection piece 232 are electrically connected to the electric motor 21 through the electric wire 234, that is, the other ends of the electric wires are respectively connected to the two input ends 211 of the electric motor 21, the current turntable 24 positions in the outer casing 10 and pivoted in the electrical connection box 23 At the top wall, the current turntable 24 has a bump 241 which is formed on the wall surface of the current turntable 24.

Referring to FIG. 2 and FIG. 3, the multi-stage switch is disposed in the grip 11 of the outer casing 10. The multi-segment switch includes a direction change switch 31, a safety switch 32 and a start switch 33. As shown in FIG. 5, the direction change switch 31 is connected to the current turntable 24 of the drive unit 20 and has a dial portion 311, a rod body 312 and a through hole 313. The dial portion 311 penetrates a side wall surface of the grip 11 and protrudes On the outer side, a long hole 111 is formed in the wall surface of the corresponding grip 11, and the dial portion 311 is located in the long hole 111 and can be moved left and right. The rod body 312 is formed on one side of the dial portion 311 and the rod body The 312 is pivotally connected to the outer casing 10. The through hole 313 is formed at the end of the rod 312. The through hole 313 is sleeved by the protrusion 241 of the current turntable 24. Referring to FIG. 4 and FIG. 6, the safety switch 32 is located above the electrical connection box 23 and is a long cross-bar structure. Both ends of the safety switch 32 penetrate the opposite sides of the grip 11 respectively. In the wall surface, the safety switch 32 has a blocking block 321 which is formed at the center of one of the side wall faces of the safety switch 32. The activation switch 33 is connected to the electrical connection box 23 and the activation switch 33 penetrates and protrudes. In the opposite wall of the grip 11 with respect to the plucking portion 311, the activation switch 33 has an extending block 331 and two sliding slots 332 formed at the center of the upper wall surface of the starting switch 33, the extending block 331 and the starting The protruding surface of the switch 33 is in a vertical relationship, and the blocking block 321 of the safety switch 32 can be abutted against one end of the extending block 331. The two sliding grooves 332 are concavely formed on the upper wall surface of the safety switch 33 and located in the extending block body 331. On both sides, as shown in FIG. 7 , the width of the blocking block 321 is smaller than the groove width of the sliding slot 332 and can enter the opposite sliding slot 332 .

Referring to FIG. 1 and FIG. 4 , the working component 40 is connected to the driving component 20 and is a structure for cutting a cable. The working component 40 has a wire cutting fixed blade 41 and a wire cutting movable knife 42 . One end of the wire cutter 22 is fixed in the gear box 22 and the other end portion protrudes from the outer side of the mounting area 13. One end of the wire cutting movable blade 42 pivotally cuts the protruding end of the fixed blade 41, and the wire cutting movable blade 42 is provided. a plurality of guide teeth 421, the guide teeth 421 are formed around the other end of the movable cutter 42 with respect to the pivot joint, and the guide teeth 421 are engaged in the gear box 22, so that the wire cutter 52 is driven by the drive assembly 20 The pivoting movement is generated by the top pivoting portion, and the cable is cut by the interleaving of the wire cutting fixed blade 41 and the wire cutting movable blade 42.

Referring to FIG. 1 , the power storage device 50 is connected to one end of the outer casing 10 , and the power storage device 50 is fixed to the base 12 , and the power storage device 50 is electrically connected to the electrical connection box via the electric wire 234 and the third electrical connection piece 233 . 23, the electrical connection of the electric wire 21 of the first electric connecting piece 231 or the second electric connecting piece 232 causes the electric motor 21 to generate mechanical energy, and the electric motor 21 drives the rotation of the internal gear of the gear box 22, and then the gear box 22 In combination with the guide teeth 421 to drive the pivoting of the wire cutter 54, through the arrangement of the power storage device 50 to provide the power required to drive the assembly 20, the power tool is a portable tool.

Referring to FIG. 5 to FIG. 7 , in the practical application, the direction change switch 31 , the safety switch 32 and the start switch 33 are sequentially set and opened, and the dialed portion 311 of the direction change switch 31 is driven to drive the current. The turntable 24 and the current turntable 24 have three-stage adjustment characteristics. When the bump 241 is at the center, the first connecting piece 231 and the second connecting piece 232 are not turned on. When the bump 241 is located on the left side or the right side, A connecting piece 231 or a second connecting piece 232 is in an on state to selectively control the rotation direction of the electric motor 21. After completion, the safety switch 32 is pressed to release the restriction on the starting switch 33, and the two protrusions of the safety switch 32 are extended. The end portion can be pressed. This is suitable for the different hand of the dominant hand. When one of the protruding ends is pressed, the blocking block 321 of the safety switch 32 is slipped by the original block 331 of the starting switch 33 and correspondingly At the position of a chute 332, finally pressing the start switch 33 inward and the blocking block 321 can enter the chute 332, the power tool is driven.

With the setting of the multi-stage switch, the user can provide multiple restrictions and protection during the starting process of the power tool. The user needs to turn on the direction switch 31, the safety switch 32 and the start switch 33 in order to cut the cable. When the operation sequence of the multi-stage switch is incorrect, the power tool cannot be driven, which helps to avoid accidental contact with the start switch 33 or improper operation.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. However, the present invention has been described above by way of preferred embodiments, but is not intended to limit the invention, and is In general, the equivalent embodiments of the above-described technical contents may be modified or modified equivalently, without departing from the technical scope of the present invention, and the above embodiments are implemented according to the technology of the present invention without departing from the technical scope of the present invention. Any simple modifications, equivalent changes and modifications made by the examples are still within the scope of the technical solutions of the present invention.

10‧‧‧Outer casing
11‧‧‧ grip
111‧‧‧ long hole
12‧‧‧Base
13‧‧‧Installation area
20‧‧‧Drive components
21‧‧‧Electric motor
211‧‧‧ input
22‧‧‧ Gearbox
23‧‧‧Electrical connection box
231‧‧‧First electrical connection piece
232‧‧‧Second electrical connection piece
233‧‧‧ Third electrical connection piece
234‧‧‧Wire
24‧‧‧current turntable
241‧‧‧Bumps
31‧‧‧ Directional switch
311‧‧‧Receipt Department
312‧‧‧ rod body
313‧‧‧Perforation
32‧‧‧Safety switch
321‧‧‧block block
33‧‧‧Start switch
331‧‧‧Extended block
332‧‧‧ chute
40‧‧‧Working parts
41‧‧‧Wire cutting fixed knife
42‧‧‧Wire cutting knife
421‧‧‧ teeth
50‧‧‧Power storage device

Figure 1 is a perspective view of the present invention. Figure 2 is a front elevational view of the front view of the present invention. Figure 3 is a rear elevational view of the portion of the present invention. Figure 4 is a partial cross-sectional view of the present invention. Fig. 5 is a schematic view showing the operation of the direction change switch of the present invention. Fig. 6 is an external view showing the positional relationship between the safety switch and the start switch of the present invention. Fig. 7 is a view showing the operation of the safety switch and the start switch of the present invention.

10‧‧‧Outer casing

11‧‧‧ grip

13‧‧‧Installation area

20‧‧‧Drive components

21‧‧‧Electric motor

211‧‧‧ input

22‧‧‧ Gearbox

23‧‧‧Electrical connection box

233‧‧‧ Third electrical connection piece

234‧‧‧Wire

31‧‧‧ Directional switch

311‧‧‧Receipt Department

312‧‧‧ rod body

32‧‧‧Safety switch

33‧‧‧Start switch

41‧‧‧Wire cutting fixed knife

42‧‧‧Wire cutting knife

421‧‧‧ teeth

43‧‧‧Setting screws

Claims (9)

A power tool with a multi-segment switch, comprising: an outer casing having a grip and a mounting area, the grip is located at the outer casing, the mounting area is extended to form a side edge of the grip; and a driving assembly is mounted The drive assembly has an electrical connection box and a current turntable, the current turntable is disposed on the top wall of the electrical connection box; a multi-stage switch is disposed at the grip of the outer casing, and the multi-stage switch has a a direction change switch, a safety switch and a start switch, the direction switch is connected to the current turntable, the safety switch is disposed in the outer casing body and the end portion thereof protrudes from the outer side of the grip, the start switch is connected to the electric connection box and one side thereof protrudes from the grip The outer side, the other side can be abutted by the safety switch; a working component connected to the driving component, the working component protruding at the top wall of the mounting area; a power storage device connected to the outer casing, the The power storage device is fixed at the other side edge of the grip and electrically connected to the electrical connection box of the drive assembly. The power tool of claim 1, wherein the driving component further comprises an electric motor and a gear box, one end of the gear box is connected to the working component, and the other end is connected to the power output end of the electric motor, and the electric motor is provided. The two input ends, the electrical connection box is disposed in the grip and electrically connected to the electric motor, the electric connection box has a first electrical connection piece, a second electrical connection piece, a third electrical connection piece and three wires, the first electrical connection The first electrical connection piece is respectively disposed on two sides of the top wall surface of the electrical connection box, and the third electrical connection piece is located on the bottom wall surface of the electrical connection box, and one end of the three wires is respectively connected to the first electrical connection piece and the second electrical connection The first electrical connection piece and the second electrical connection piece are electrically connected to the electric motor, that is, the other ends of the electric wires are respectively connected to the two input ends of the electric motor. The power tool according to claim 1 or 2, wherein the multi-stage switch comprises a direction switch, a safety switch and a start switch, and the direction switch is connected to the current turntable of the drive component and one of the direction switch is worn. The safety switch is located above the electrical connection box, and the safety switch has a blocking block which is formed at the center of one of the side walls of the safety switch, and the starting switch penetrates and protrudes Extending the opposite wall of the grip switch relative to the direction switch, the start switch has an extension block and two chutes, and the extension block is formed at the center of the upper wall surface of the start switch, the extension block being perpendicular to the protrusion surface of the start switch In relation, the block of the safety switch abuts one end of the block, and the two chutes are concavely formed on the upper wall surface of the safety switch and are located on both sides of the extended block, and the width of the block is smaller than the groove width of the chute. The power tool of claim 3, wherein the current turntable is located in the outer casing and is disposed at a top wall of the electrical connection box, and the current turntable has a protrusion protruding from the current turntable. The wall surface direction switch has a dialing portion, a rod body and a perforation, and the wall surface of the grip is provided with a long hole, and the dial portion is disposed in the long hole of the grip and protrudes outward, and the dialing portion is The long hole is swung left and right, the rod body is formed on one side of the dialed portion and the rod body is pivotally connected in the outer casing body, and the through hole is formed at the end of the rod body, and the through hole is sleeved with the bump of the current turntable. The power tool according to claim 3, wherein the working component has a wire cutting fixed blade and a wire cutting movable knife, and one end of the wire cutting fixed blade is fixed in the gear box and the other end protrudes in the mounting area. On the outer side, one end of the wire cutting movable knife pivotally cuts the protruding end of the fixed knife, and the wire cutting movable knife is provided with a plurality of guiding teeth, which are formed around the other end of the movable cutting knife relative to the pivot joint, The guide teeth are engaged in the gearbox, and the wire cutting movable blade is pivotally moved by the drive assembly to be pivoted at its top pivot. The power tool according to claim 4, wherein the working component has a wire cutting fixed blade and a wire cutting movable knife, and one end of the wire cutting fixed blade is fixed in the gear box and the other end protrudes in the mounting area. On the outer side, one end of the wire cutting movable knife pivotally cuts the protruding end of the fixed knife, and the wire cutting movable knife is provided with a plurality of guiding teeth, which are formed around the other end of the movable cutting knife relative to the pivot joint, The guide teeth are engaged in the gearbox, and the wire cutting movable blade is pivotally moved by the drive assembly to be pivoted at its top pivot. The power tool according to claim 5, wherein the outer casing has a base formed on a bottom edge surface of the grip, the electric storage device is fixed on the base, and the electric storage device is electrically connected to the third electric connection of the electric connection box. Connecting piece. The power tool according to claim 6, wherein the outer casing has a base formed on a bottom edge surface of the grip, the electric storage device is fixed on the base, and the electric storage device is electrically connected to the third electric connection of the electric connection box. Connecting piece. The power tool of claim 3, wherein the safety switch is a long crossbar structure, and the two ends of the safety switch are disposed on the opposite wall surfaces of the grip.