CN205810615U - A kind of switching device - Google Patents

Abstract

The utility model discloses a kind of switching device, including push button, it is provided with the upper casing of sliding tray, push-pull bar, locks button and spring, push button is provided with the first through hole, first through hole is stepped hole, lock button from the first through hole through and fixing with push-pull bar be connected, spring housing is located to be locked on button and the bottom of spring is resisted against on the step in the first through hole；Push-pull bar upper surface is provided with boss, and the relevant position of upper casing is provided with the draw-in groove matched with boss.This utility model utilizes the boss on push-pull bar to be stuck in the draw-in groove of upper casing relevant position, makes push button can not cause start by forward slip, and utilizes when need to use and lock button and move down push-pull bar and make boss leave draw-in groove, promotes push button start simultaneously.This utility model switching device needs secondary action to start shooting, and prevents maloperation or non-artificial start, is used conveniently and safely.

Description

A kind of switching device

Technical field

This utility model relates to machine tool field of switches, is specifically related to a kind of switching device, is mountable to hand-held sand On the instrument such as ray machine, electric mill, connect motor switch, for start and stop instrument.

Background technology

The switching device of the hand-held tools such as existing sander, electric mill include push button, the upper casing being provided with sliding tray and Push-pull bar, promotes the push-pull bar in push button drive casing to move forward pushing motor switch, opener；When needing to stop, will Push button retracts, and drives push-pull bar to be moved rearwards by pulling motor switch, and instrument cuts out.Above-mentioned switching device power-on operation is simple, only Push button need to be promoted, the maloperation of operator or non-artificial promote push button all can cause start, it is possible to destroy thing Part or damage people, there is the biggest potential safety hazard in the hand-held tool being provided with this switching device.

Summary of the invention

For solving the problems referred to above, the utility model proposes a kind of switching device, original push button is arranged and locks button, place When off-mode, push button is pinned, need to press during use and lock button and could promote push button thus start shooting, can effectively prevent from grasping by mistake Make or non-artificial start, be used conveniently and safely.

Concrete technical scheme of the present utility model is as follows: a kind of switching device, including push button, the upper casing that is provided with sliding tray And push-pull bar, it is characterised in that: described push button is provided with the first through hole, and the first through hole is stepped hole, and described switching device also wraps Include and lock button and spring, lock button from the first through hole through and fixing with push-pull bar be connected, spring housing is located to be locked on button and bullet The lower surface of spring is resisted against on the step in the first through hole；Push-pull bar upper surface is provided with boss, and the relevant position of upper casing is provided with The draw-in groove matched with boss；Lock button in the first through hole to moving down dynamic compression spring and driving push-pull bar to move down, make The boss of push-pull bar leaves the draw-in groove of upper casing.

When switch is in closed mode, the boss on push-pull bar is stuck in the draw-in groove of upper casing, and push button can not be promoted To open state, play the effect pinning push button.When needing start, press and lock button thus compression spring makes deformation, drive push away Pull bar makes downwards the boss on push-pull bar leave draw-in groove, promotes forward push button simultaneously, drives push-pull bar to move forward and pushes motor open Switch, opens motor, and after hands unclamps, owing to spring recovers deformation, upwards passage is locked button thus driven push-pull bar to move up； When needing shutdown, push button is dialled backward, drive push-pull bar to be moved rearwards by, draw pass motor switch, close motor, now on push rod Boss moves to the draw-in groove of upper casing, is pinned by push button.

As further improvement of the utility model, described in lock button and include button post and be arranged on the button cap of button capital end, Spring housing is on button post, and spring upper end abuts the lower surface of button cap, and button post is fixing with push-pull bar to be connected.Press button cap is pressed during unblock, Spring upper end is by the downward pressure of button cap, and lower end is by step thrust upwards in the first through hole, thus compression, whole Locking button to move down in the first through hole, drive is fixed, with button post, the push-pull bar being connected and is also moved down.

As further improvement of the utility model, described switching device also includes holding section, and push-pull bar passes through holding section Fix with button post.Holding section is used to be fixed on by push-pull bar on button post, more solid and reliable than being adhesively fixed.

As further improvement of the utility model, described button post lower end is provided with necking part, and push-pull bar is provided with the second through hole, Second through hole is fastened on necking part, and holding section is connected with necking part, for push-pull bar is limited in necking part.Push-pull bar passes through Second through hole is enclosed within the necking part of button post, then by the holding section being connected with necking part bottom, push-pull bar is fixed on necking part On.When locking button and moving down, push-pull bar is by downward pressure thus moves down, when locking button by spring band trend Time mobile, push-pull bar is by holding section pulling force upwards thus moves up.

As further improvement of the utility model, described holding section is screw.Screw is easy for installation as holding section, no Need reprocessing, cost-effective.

The beneficial effects of the utility model: this utility model utilizes the boss on push-pull bar to be stuck in upper casing relevant position In draw-in groove, make push button can not forward slip start, and need to press when using and lock button and move down push-pull bar and make boss leave card Groove, promotes push button start simultaneously.This utility model switching device needs secondary action to start shooting, and prevents maloperation or non-artificial opens Machine, is used conveniently and safely.

Accompanying drawing explanation

Fig. 1 is the structural representation that this utility model is arranged on handheld tool in closed mode.

Fig. 2 is the structural representation of push button in this utility model.

Fig. 3 is to lock button in this utility model to fix the profile stretch-out view of the first kind of way being connected with push-pull bar.

Fig. 4 is to lock button in this utility model to fix the profile stretch-out view of the second way being connected with push-pull bar.

Fig. 5 is the structure chart locking button in Fig. 4.

Labelling in figure:

1. upper casing, 2. push button, 3. push-pull bar, 4. motor switch, 5. the first through hole, 6. lock button, 7. spring, the most convex Platform, 9. draw-in groove, 10. holding section, 61. button caps, 62. button posts, 621. necking parts.

Detailed description of the invention

Below in conjunction with the accompanying drawings and this utility model is described further by specific embodiment.

Refering to Fig. 1, a kind of switching device, it is applied to hand-held tool, connects the motor switch 4 of hand-held tool, including Push button 2, lock button 5, spring 7 and push-pull bar 3.The upper casing 1 of hand-held tool is provided with the elongated hole slided for push button, and elongated hole runs through Upper casing 1.Push button 2 is provided with the first through hole 5, as in figure 2 it is shown, the first through hole 5 is stepped hole, locks button 6 and wears from the first through hole 5 Spend be connected fixing with push-pull bar 3.Spring 7 is set in be locked on button 6 and the bottom of spring 7 abuts the step in the first through hole 5, presses When pressure locks button, locking button and make spring top downward, step is accepted spring bottom end and is made camber of spring.Push-pull bar 3 is provided with boss 8, the relevant position of upper casing 1 is provided with the draw-in groove 9 matched with boss 8, and when switch is closed, boss is stuck in draw-in groove, Make push button cannot forward slip, reach pin push button effect.

Spring 7 is set in be locked on button 6, can be fixed on by spring upper end and lock on button, press and can move by band when locking button Spring is pressed downward against compression deformation.In order to easy for installation and use comfortable, preferred forms is: lock button 6 by button cap 61 and button post 62 Composition, button cap 61 is arranged on the top of button post 62, and button cap 61 is formed in one with button post 62.Spring 7 is enclosed within button post 62, spring The top of 7 abuts button cap lower surface, when button is locked in pressing, and the downward pressure that spring upper end is applied by button cap, lower spring end Being applied thrust upwards by step in the first through hole, compression under the effect of two ends power, when, after distress resolves, spring is extensive Complex deformation spring upper end heads on button cap, drives and whole locks button upwards.

Button post 62 can be fixed by bonding way with push-pull bar 3, it is possible to is fixed by holding section 10, the preferred spiral shell in holding section Nail.As it is shown on figure 3, the button post of button is locked in the bar portion of screw from the lower surface of push-pull bar through push-pull bar insertion, push-pull bar is solid Being scheduled on button post, now locking button with push-pull bar is same beaer, together moves up and down.Also button can be locked as shown in Figure 4 Button post 62 lower end is provided with necking part 621, and push-pull bar 3 is provided with the second through hole, and push-pull bar 3 is enclosed within the necking down of button post by the second through hole In portion, insert screw in necking part bottom, push-pull bar is fixed on necking part.When locking button and moving down, push-pull bar is subject to To downward pressure thus move down, when lock button by spring band is dynamic move up time, push-pull bar is by holding section upwards Pulling force thus move up.

When needing opener, press and lock button thus compression spring makes deformation, drive push-pull bar to move down and make push-and-pull Boss on bar leaves draw-in groove, promotes forward push button simultaneously, drives push-pull bar to move forward and pushes motor switch open, opens motor, After hands unclamps, owing to spring recovers deformation, make to lock button ejection thus drive push-pull bar to move up；When needing closedown instrument, Being dialled by push button backward, drive push-pull bar to be moved rearwards by, draw pass motor switch, close motor, now the boss on push rod moves to The draw-in groove of casing, pins push button.

Claims (5)

1. a switching device, the upper casing including push button, being provided with sliding tray and push-pull bar, it is characterised in that: on described push button Being provided with the first through hole, the first through hole is stepped hole, and described switching device also includes locking button and spring, locks button from the first through hole Through and fixing with push-pull bar be connected, spring housing is located to be locked on button and the bottom of spring is resisted against the step in the first through hole On；Push-pull bar upper surface is provided with boss, and the relevant position of upper casing is provided with the draw-in groove matched with boss.

Switching device the most according to claim 1, it is characterised in that lock button described in: and include button post and be arranged on button capital The button cap of end, spring housing is on button post, and spring upper end is against button cap lower surface, and button post is fixing with push-pull bar to be connected.

Switching device the most according to claim 2, it is characterised in that: described switching device also includes holding section, push-pull bar Fixed with button post by holding section.

Switching device the most according to claim 3, it is characterised in that: described button post lower end is provided with necking part, and push-pull bar sets Having the second through hole, the second through hole to be fastened on necking part, holding section is connected with necking part and is limited on necking part by push-pull bar.

5. according to the switching device described in claim 3 or 4, it is characterised in that: described holding section is screw.