CN204108920U - Returning formula screwdriver - Google Patents

Abstract

The utility model relates to a kind of returning formula screwdriver, comprise hilt, cutter head and knife bar, described ratchet, ratchet, spring again handle are inner, are can dismantling of separating in knife bar and handle, cutter head is embedded on knife bar, and cutter head has magnet both to be connected with knife bar joint; Described screwdriver moulding and common not too large differentiation, but its hilt internal structure is ingenious, have employed flywheel principle; The utility model tool has the following advantages and feature: this screwdriver handle receives inner employing flywheel principle, substantially increases the operating efficiency that user does manual work; Can avoid repeating again to cause in various work to sprain; The turn of the screw hand repeated can not feel fatigue, and ensure that the personal safety of user greatly; This designs the custom for people and improves, and adopts the automatism of people, without the need to loaded down with trivial details operating procedure, just can reach the object of strainer; Moulding not too large change, easily accepted by the public, more easily introduce to the market.

Description

Returning formula screwdriver

Technical field

The utility model relates to a kind of maintenance tool, particularly relates to a kind of screwdriver.

Background technology

Current maintenance tool is generally electronic with common, and this two classes screwdriver all exists pluses and minuses more or less; Electric screw driver has limitation, when not having electricity with regard to cisco unity malfunction, also there is electric wire and the flexibility of screwdriver is greatly reduced; Normal screws cutter is convenient, but ceaselessly makes with the hands in a large amount of work, reduces operating efficiency, adds the work of user from the side.

Utility model content

For overcoming above-mentioned defect, the purpose of this utility model provides a kind of returning formula screwdriver, this screwdriver between electronic and manually between, be primarily characterized in that screwdriver hilt, there is positive and negative two ratchets and ratchet in hilt inside, when screw is reinforced, hand can apply pressure by nature, and top ratchet and ratchet can do work clockwise, reach into button object; The Shi Zehui that loosens the screw a little reduces screwdriver pressure, and spring force shifts normal condition onto bottom ratchet, and bottom ratchet and ratchet can do work counterclockwise, reach the object that releases.Allow people without the need to considering its mode of operation or actuation cycle and finishing the work.This screwdriver not only structure is simple and easy to processing, and makes user quick detachable.

For achieving the above object, the utility model adopts following technical scheme: a kind of returning formula screwdriver, comprises hilt, knife bar and cutter head, it is characterized in that described hilt has positive and negative two ratchets and ratchet in inside, being respectively the wheel that links closely and taking turns with releasing.

Also spring is had, in being wrapped in by outermost plastic housing bottom described hilt.

Described knife bar and cutter head are connected together by magnet.

Described ratchet is fixed on hilt interior solid plastics pillar, corresponds ratchet and is fixed on the plastic body that hilt holds.

Knife bar and cutter head are magnet is be connected, and the magnetic of magnet also can increase cutter head magnetic, thus screw also can be made to drop.

Compared with prior art, tool of the present invention has the following advantages and feature:

1, falling strainer without the need to again screwdriver being mentioned repeatedly, adding operating efficiency.

2, without the need to electric power support, first property is not limited to, convenient flexibly.

3, type is general but have employed soft silica gel material, adds comfort level when hand uses, adds the friendliness of people and instrument.

Accompanying drawing explanation

Fig. 1 is the overall structure figure of returning screwdriver described in the utility model;

Fig. 2 Fig. 3 Fig. 4 Fig. 5 is that returning screwdriver described in the utility model uses schematic diagram;

Fig. 6 is the assembled schematic diagram of returning screwdriver described in the utility model;

In figure, soft silica gel 1, plastic handles 2, spring 3, upper detent 4, upper ratchet 5, lower detent 6, lower ratchet 7, plastics pillar 8, lower curtate shell 9, knife bar 10, magnetic head 11, cutter head 12

Specific embodiment

Illustrate below in conjunction with accompanying drawing and with detailed description of the invention, the utility model to be further described:

Operation of linking closely as shown in Figure 2 turns clockwise, plastic handles 2 and the upper detent 4 in handle are by one's hands given pressure, act on spring 3 to move downward, meanwhile hand does work clockwise, handle 2 also turns clockwise simultaneously, making internal pawl 4 act on upper ratchet 5 drives plastics pillar 8 to rotate, thus knife bar and cutter head can be driven to rotate, and reaches the object linked closely; As being rotated counterclockwise when Fig. 3 links closely and operates, Fig. 2 basis is rotated counterclockwise, and ratchet 4 slides counterclockwise, after hand turns round certain angle, again does work as shown in Figure 2; Repeat Fig. 2 and Fig. 3 and just can reach the object that links closely.

From being rotated counterclockwise when releasing as shown in Figure 4, plastic handles 2 and the lower detent 6 in handle are by rotary torsion in one's hands, and ratchet does work to lower ratchet 7 counterclockwise, and ratchet drives sub rotation of plastic column to do work to knife bar and cutter head simultaneously, reaches the object that releases; Turn clockwise as shown in Figure 5, Fig. 4 basis turns clockwise, ratchet 6 slid clockwise, after hand turns round certain angle, does work again as shown in Figure 4; Repeat Fig. 4 and Fig. 5 and just can reach the object released.

It will be recognized by those skilled in the art, under the prerequisite not departing from protection scope of the present invention, various amendment, change and combination can be carried out to above-mentioned embodiment, and think that this amendment, change and combination are within the scope of originality thought.

Claims (3)

1. a returning formula screwdriver, comprises hilt, knife bar and cutter head, it is characterized in that described hilt has positive and negative two ratchets and ratchet in inside, being respectively the wheel that links closely and taking turns with releasing.

2. screwdriver as claimed in claim 1, is characterized in that also having spring bottom described hilt, in being wrapped in by outermost plastic housing.

3. screwdriver as claimed in claim 1, is characterized in that described knife bar and cutter head are connected together by magnet.