CN203460102U - Novel screwdriver - Google Patents

Abstract

The utility model relates to the technical field of screwdriver for operation, specifically to a novel screwdriver. A hand-held type handle is connected to the right bottom end of an auxiliary rod of the screwdriver, and a protruding head is arranged on the left top of the auxiliary rod of the screwdriver. A cavity divided into a left cavity and a right cavity is arranged in a ratchet, and the internal diameter of the left cavity is greater than that of the right cavity. The auxiliary rod of the screwdriver penetrates through the right cavity of the ratchet, and the protruding head, of which the external diameter is greater than the internal diameter of the right cavity, is arranged in the left cavity. The left top of a main screwdriver rod is provided with a screwdriver cutter head, and the right portion of the main screwdriver rod is connected with the ratchet. A groove is arranged on the right bottom of the main screwdriver rod, and the internal diameter of the groove is greater than the external diameter of the protruding head. A spring is arranged in the groove, the left end of the spring is connected with the bottom of the groove, and the right end of the spring is connected with the protruding head. The screwdriver rod, the ratchet and the hand-held type handle are in telescopic connection, so that the ratchet can be rapidly rotated by a thumb and an index finger. The novel screwdriver is more convenient and simple for operation, wide in application scope, and convenient for use, effectively increases force application efficiency, and may not cause discomfort to hand.

Description

A kind of novel screwdriver

[technical field]

The utility model relates to the screwdriver technical field in operation, specifically a kind of novel screwdriver.

[background technology]

Existing instrument is when the working environments such as greasy dirt, dust, and tool using person has and holds phenomenon tight, that hand skids, causes strength to run off, workpiece fastening and looseningly cannot reach perfect condition; When loading and unloading loosening screw fast, owing to changing power shakiness, instrument can misplace and slip out of the hand simultaneously; Existing "-" font screwdriver can only be tackled a kind of form screw in addition, if any "+" font screw, just needs other replacing instrument to use.Secondly, if long-time continuous is firmly used, screwdriver palm firmly grasps press in the situation that at palm, and there is wearing and tearing pain palm part, refers to the swollen phenomenon of wrist acid, thereby affects follow-up work efficiency and quality.

[utility model content]

The purpose of this utility model is exactly, in order to solve the defects such as conventional screw-driver in order applicability deficiency, effort, to provide a kind of novel structure, safe and reliable, laborsaving, easy to use and novel screwdriver that applicability is strong.

For achieving the above object, a kind of novel screwdriver is provided, comprise knife bar, ratchet, spring, hold formula handle, it is characterized in that the secondary bar of the described formula of holding handle 5 and screwdriver 4 one end, bottom, right side are connected, the secondary bar left side top of screwdriver is provided with plush copper 8, described ratchet 2 inside are provided with cavity, described cavity is divided into left part cavity and right part cavity, described left part cavity internal diameter is greater than right part cavity internal diameter, the secondary bar 4 of described screwdriver is through the right part cavity of ratchet 2, described plush copper is arranged in left part cavity, described plush copper external diameter is greater than right part cavity internal diameter, described operator bar 1 left side top is provided with driver bit, described operator bar 1 right part is connected with ratchet 2, described operator bar 1 bottom, right side is provided with groove, groove internal diameter is greater than plush copper 8 external diameters, in groove, be provided with spring 3, connecting groove bottom, one end, spring left side, one end, spring right side connects plush copper 8.

Described driver bit main body is flat trapezoidal square head structure.

Described plush copper 8 cross sectional shapes are hexagon.

Described operator bar right side bottom groove 7 is comprised of a circular groove and a hexagonal indentations, and described circular groove internal diameter is less than hexagonal indentations internal diameter, and described circular groove internal diameter is less than the external diameter of plush copper 8.

The outer ring on described operator bar right side is provided with screw thread, and described ratchet cavities one end inner ring that keeps left is provided with screw thread, and described operator bar and ratchet are threaded connection.

The secondary bar of described screwdriver with hold formula handle by surely following closely and be connected.

Described ratchet outer surface is provided with convex edge.

The utility model compared with the existing technology, user can not cause hand to skid, grasp not tight because of external factor conditions such as greasy dirt, dust, the application of force be difficult for to be run off, and this product can be avoided for a long time because grasping firmly causing palm concentrated wear pain, refer to that wrist acid is swollen or other hands are uncomfortable while pressing reaching desirable torsional forces simultaneously.Secondly, the utility model screwdriver rod, ratchet all stretch and are connected with the formula handle of holding, facilitate thumb and forefinger quick rotation ratchet, can arbitrarily control instrument, load and unload loosening screw, more convenient operation, has solved in prior art because the power of changing causes instrument unstable and the dislocation causing and the phenomenon of slipping out of the hand.In addition, the utility model has changed the shape of the flat square toes of screwdriver, makes it to become flat trapezoidal head, not only can be used for "-" font screw, also can be used for "+" font screw, uses more convenient.

[accompanying drawing explanation]

Fig. 1 is the profile of the utility model screwdriver;

Fig. 2 is the plane of the utility model screwdriver;

Fig. 3 (a) is the utility model screwdriver operator bar structural plan schematic diagram;

Fig. 3 (b) is bottom section, the right side structural representation of the utility model screwdriver operator bar;

Fig. 4 (a) is the cross section structure schematic diagram of the utility model screwdriver ratchet;

Fig. 4 (b) is the cross-sectional view of the utility model screwdriver ratchet;

Fig. 4 (c) is the planar structure schematic diagram of the utility model screwdriver ratchet;

Fig. 5 (a) is the secondary bar structure side view of the secondary bar of the utility model screwdriver;

Fig. 5 (b) is the steady pin pore structure schematic diagram of the secondary bar of the utility model screwdriver;

Fig. 6 (a) is the primary structure schematic diagram that the utility model screwdriver is held formula handle;

Fig. 6 (b) is the side view of the utility model Fig. 6 (a);

As shown in the figure, in figure: 1. the secondary bar 5. of operator bar 2. ratchet 3. spring 4. screwdrivers is held formula handle 6. circular groove 7. ratchet internal cavities 8. plush copper 9. steady nail 10. convex edges;

Specifying Fig. 1 is Figure of abstract of the present utility model.

[specific embodiment]

Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning this professional people.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

The utility model is a kind of novel screwdriver, its operator club head is flat trapezoidal, the screw that applicable "-" and "+" is two types, operator outer ring, bar right side is screw thread, bottom, operator bar right side is provided with groove, this groove is that circular groove and a cross section is that hexagonal groove forms by a cross section, is provided with spring in groove.The plush copper of the secondary bar of screwdriver is hexagonal square toes, first the secondary bar right part of screwdriver is passed in the middle of ratchet, again screwdriver the is operated right side bottom of bar places spring and screws in and has in the ratchet of screw thread one side, then bottom, the secondary bar of screwdriver right side is loaded onto to steady nail and is bumped into the formula handle of holding and can becomes one.Hold the arc that is shaped as evagination of formula handle, can time the centre of the palm of fitting, use feel better, higher with force efficiency.In use, can be first with thumb and forefinger rotation ratchet 2 for comparatively loosening screw, while turning motionless screw to two fingers, fastening again, when fastening, will hold formula handle 5 and depress, secondary bar 4 left parts of screwdriver slide in ratchet, plush copper extrusion spring, make in the groove of bottom, plush copper embedding screwdriver operator bar right side, screwdriver operator bar and the stressed effect of the secondary bar of screwdriver contact with each other, thereby rotation can make whole screwdriver rotate holding screw after holding formula handle.Its main operational steps is as follows:

Step 1: secondary bar 4 right parts of screwdriver are penetrated to ratchet 2, the secondary bar of screwdriver is penetrated and is passed from the other end of ratchet by the threaded one end of ratchet, then loading onto steady pin is inlaid into and holds in 5 holes of formula handle, again spring 3 is packed in the circular groove of bottom, operator bar right side, operator bar is screwed in the screw thread of ratchet, screw.

Step 2: hold formula handle during use, with thumb and forefinger, coordinate, utilize the convex edge rotating ratchet 2 of ratchet surface, under the elastic stress effect of spring, operate the secondary bar of bar and screwdriver for contact condition not, when reinforcing fastening when the loose unloading, only need press the formula handle of holding and make the secondary bar plush copper of screwdriver extrusion spring embed the circular groove of bottom, operator bar right side, make screwdriver operator bar contact with the secondary bar of screwdriver simultaneously, turn is held formula whole handle and is rotated.

Claims (7)

1. a novel screwdriver, comprise operator bar, ratchet, spring, hold formula handle, it is characterized in that the described formula of holding handle (5) is connected with one end, bottom, the secondary bar (4) of screwdriver right side, the secondary bar left side top of screwdriver is provided with plush copper (8), described ratchet (2) inside is provided with cavity, described cavity is divided into left part cavity and right part cavity, described left part cavity internal diameter is greater than right part cavity internal diameter, the described secondary bar of screwdriver (4) is through the right part cavity of ratchet (2), described plush copper is arranged in left part cavity, described plush copper external diameter is greater than right part cavity internal diameter, described operator bar (1) left side top is provided with driver bit, described operator bar (1) right part is connected with ratchet (2), described bottom, operator bar (1) right side is provided with groove, groove internal diameter is greater than plush copper (8) external diameter, in groove, be provided with spring (3), connecting groove bottom, one end, spring left side, one end, spring right side connects plush copper (8).

2. a kind of novel screwdriver as claimed in claim 1, is characterized in that described driver bit main body is flat trapezoidal square head structure.

3. a kind of novel screwdriver as claimed in claim 1, is characterized in that described plush copper (8) cross sectional shape is hexagon.

4. a kind of novel screwdriver as claimed in claim 1, it is characterized in that described operator bar right side bottom groove (7) is comprised of a circular groove and a hexagonal indentations, described circular groove internal diameter is less than hexagonal indentations internal diameter, and described circular groove internal diameter is less than the external diameter of plush copper (8).

5. a kind of novel screwdriver as claimed in claim 1, is characterized in that the outer ring on described operator bar right side is provided with screw thread, and described ratchet cavities one end inner ring that keeps left is provided with screw thread, and described operator bar and ratchet are threaded connection.

6. a kind of novel screwdriver as claimed in claim 1, is characterized in that the secondary bar of described screwdriver is connected by steady nail with handle.

7. a kind of novel screwdriver as claimed in claim 1, is characterized in that described ratchet outer surface is provided with convex edge.

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