CN2212483Y

CN2212483Y - Dual-purpose ratchet socket wrench

Info

Publication number: CN2212483Y
Application number: CN 93233949
Authority: CN
Inventors: 李勋堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-15
Filing date: 1993-05-15
Publication date: 1995-11-15
Anticipated expiration: 2003-05-15

Abstract

The utility model discloses a dual-purpose ratchet socket wrench. The inner cavity of the head of a handle (1) is provided with a two-way ratchet pawl (2) with a rotary flat axis and a ratchet wheel (3) with a square axis and a square hole. Cover plates (7), (8) at the both sides of the head are connected into a whole by rivets (6) and a handle (1). The flat axis of the ratchet pawl is riveted with a reversing tease button (10). A ball (11) and a spring (12) are formed into a resetting mechanism. A ball (4) and a spring (5) are used for increasing the friction matched with a standard sleeve head. The standard sleeve axis head inserted into the square hole is fixed by the suction force of a magnet (9). The utility model can loose and tighten internal and external hexagon head screws with various specifications and larger specification screws with I-shaped heads and cross-shaped heads. The utility model has the advantages of high intensity, light weight, and simple and reliable reversing of the ratchet pawl.

Description

Dual-purpose ratchet socket wrench

The utility model relates to a kind of dual-purpose box socket set, can be used for the socket head screw of degree of tightness all size especially again easily.

At present, regardless of its structure, all there are three weak points in the various box socket sets that every profession and trade is used in varying degrees: 1, can only be used for degree of tightness outer-hexagonal head screw, can not be used for the socket head screw that degree of tightness is widely used.2, when slack adjuster, ratchet all is to bear a bending stress, thereby its stress is relatively poor, and the intensity of ratchet is not high yet, just damages easily when being used for the big screw of degree of tightness.3, the switch operation of ratchet is cumbersome.

The purpose of this utility model provides a kind of more satisfactory dual-purpose box socket set, it not only has all functions of existing various box socket sets, and can overcome three weak points that present various box socket set exists again fully, weight is also lighter.

The handle that the purpose of this utility model is achieved in that " worker " word girder construction is connected as a single entity with Wrench head with half garden shape, a figure of eight through hole inner chamber is arranged in the center with half garden shape head, ratchet and curved garden arc (or claiming the bent moon thread form) two-way ratchet (the major part inner chamber installation ratchet of figure of eight through hole that band rotates flat axle of a special construction are housed in this inner chamber, microcephaly's inner chamber is installed two-way ratchet, and the two can do the both forward and reverse directions engagement).Center at figure of eight through hole microcephaly inwall is drilled with an aperture, and a compression spring and a ball are equipped with in the aperture the inside.The both sides of figure of eight through hole are riveted into one two cover plates and Wrench head with 4 rivets, rivet a commutation toggle then on the flat axle of the rotation of two-way ratchet, just constitute the global shape structure of dual-purpose box socket set.Wherein the ratchet of special construction is design like this: 1, an end of ratchet has the positive cubic spindle nose of a standard, and be drilled with a blind hole at the center of one face, a compression spring and a ball are housed in the hole, this positive square head and existing GB sleeve chieftain (being the auxiliary equipment of various existing box socket sets) are supporting, be used for the outer-hexagonal head screw of degree of tightness all size, have all functions of at present existing various box socket sets.2, the other end of ratchet has the positive cubic hole (or positive hexagon hole, positive twelve edge hole) of a standard, and the great magnet of magnetic is housed in the hole, or " U " shape elasticity card.This structure is convenient to insert easily or is transferred to and aims at the short and small sleeve chieftain of the standard series that this spanner designs matched all size.The shape and size of one end of this short and small sleeve chieftain series all are and the standard tetragonal axis of the shape and size corresponding (matched in clearance) of the standard square hole of ratchet (or positive hexagon hole, positive twelve edge hole) (or positive hexagon axle, positive twelve edge axle).The shape and size of the other end have three kinds of forms: a kind of is to be used for the socket head screw of degree of tightness all size with the shape and size series corresponding (being the regular hexagon head) in the positive hexagon hole of the socket head screw head of national standard, a kind of shape and size corresponding (i.e. " one " word screwdriver head) of head " " word groove of and national standard " " prefix screw are used for " one " prefix screw of the big specification of degree of tightness, the third shape and size with head " ten " the word groove of national standard " ten " prefix screw corresponding (i.e. " ten " word screwdriver head) are used for " ten " prefix screw of the big specification of degree of tightness.When in the standard square hole that this special supporting short and small sleeve chieftain of standard is inserted ratchet (or positive hexagon hole, positive twelve edge hole), just fixed by the chucking power of the suction of hole internal magnet or " U " shape elasticity card, just can be used for " one " prefix, " ten " prefix screw of the socket head screw of degree of tightness all size and big specification easily, it has overcome first weak point that existing box socket set can not the degree of tightness socket head screw.3, the position is uniform-distribution with ratchet the middle garden of ratchet week, and the adjacent side of the horizontal section of ratchet is to be mutually 90 ° isosceles trapezoid (being garden post isosceles spur gear), and this makes that the intensity of hook tooth is very high.The two-way ratchet that is meshed with ratchet is design like this: 1, the main body of ratchet is that a Cylinder forms (or form with carbide alloy mold pressing sintering) with slotting cutter milling sub-fraction, its axis projection is curved garden arc (or claiming the bent moon thread form), and two tooth positions of bent moon thread form both sides symmetry are two-way ratchets.2, be drilled with two gardens awl shallow bore holes in the center of the Cylinder outer surface thickness of two-way ratchet, their left-right symmetry are in the symmetrical center line of curved garden arched planes, the spring in this two gardens taper hole and the Wrench head figure of eight hole in the aperture, the ratchet elastic reset detent mechanism that ball constitutes this box spanner.Because two-way ratchet body is a Cylinder, therefore when slack adjuster, the power that tooth by ratchet affacts on the ratchet is a compression of pointing to its axial line, the stressing conditions of ratchet is same as garden post roller bearing fully, is in best stress, so the ratchet of this spanner, all very high with the intensity of ratchet, when being used for the big screw of degree of tightness, also not fragile, this has just overcome second weak point of existing box socket set.3, two-way ratchet has a flat axle of rotation that is used for riveting dress commutation toggle, as long as refer to stir easily the commutation toggle with the mother who holds spanner, just can change the engagement direction of pawl-and-gearing easily and reliably, thereby change turning to of ratchet, realization is to the degree of tightness of screw, make the switch operation of ratchet very simple and reliable, this has overcome the 3rd weak point of existing box socket set again.In addition, this spanner structure is reasonable in design, compares with similar spanner, and weight also alleviates to some extent.

Owing to adopt such scheme, make this box socket set not only can be used for the outer-hexagonal head screw of degree of tightness all size, and can be used for " one " prefix, " ten " prefix screw of the socket head screw of degree of tightness all size and big specification again easily, can replace various existing box socket sets and traditional hexagon elbow bend back-up wrench series the dedicated fixed spanner series of degree of tightness socket head screw (be used for).Also can replace " one " prefix of the big specification band fixed handle of part and the screwdriver of " ten " prefix.Have various uses, and the intensity height, long service life, the switch operation of ratchet is also very simple and reliable, and weight is also light than existing box spanner, is a kind of novel ratchet box spanner with combination property.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a longitudinal profile structural map of the present utility model.

Fig. 2 is the left view that Fig. 1 removes cover plate (7).

Fig. 3 is the right view of Fig. 1.

Among the figure: 1, handle, 2, two-way ratchet, 3, ratchet, 4, ball, 5, spring, 6, rivet, 7, cover plate, 8, cover plate, 9, magnet, 10, the commutation toggle, 11, ball, 12, spring.

In the embodiment shown in fig. 1, the garden shape head of handle (1) has a figure of eight through hole.Figure of eight through hole microcephaly's inwall center is drilled with an aperture, in aperture, load onto earlier spring (12) and ball (11), the two-sided gap of they and aperture should be 0.2～0.3 millimeter, and the pressure of spring (12) should be less, and being convenient to two-way ratchet (2) can stir easily.The band of packing in figure of eight through hole again rotates arc (bent moon thread form) the two-way ratchet in curved garden (2) of flat axle and has the ratchet (3) of positive square axis, square hole (or positive hexagon hole, just twelve edge hole), the middle garden week position of ratchet (3) is uniform-distribution with ratchet, and the adjacent side of the horizontal section of tooth is to be mutually 90 ° isosceles trapezoid.Center symmetry at the garden of two-way ratchet (2) outer surface of column thickness is drilled with two garden awl shallow bore holes, and this two gardens awl shallow bore hole and ball (11), spring (12) are formed elastic reset, the detent mechanism of two-way ratchet (2).Is one with cover plate (7), (8) with the head riveted joint of handle (1) with 4 rivets (6), is limiting the axially-movable of ratchet and pawl.Then, in the hole of ratchet (3), cement magnet (9) and mounting spring (5) and ball (4) in the aperture of the tetragonal axis of ratchet (3) with seccotine.Go up riveted joint commutation toggle (10) at the flat axle of two-way ratchet (2) at last.And note suitable fit clearance between each part, to guarantee rotating freely reliable operation.

Claims

1, a kind of dual-purpose box socket set, the handle of " worker " word girder construction and be connected as a single entity with the Wrench head of half garden shape, in the inner chamber of head, a ratchet and a ratchet are housed, it is characterized in that: in handle head through hole inner chamber, band rotates the two-way ratchet of flat axle and one and has positive cubic spindle nose, (or positive hexagon hole, positive cubic hole, positive twelve edge hole) ratchet is meshed, the cover plate on Wrench head both sides is riveted into one their threes with rivet, in handle head through hole inner chamber microcephaly's the center aperture spring and a ball are housed, a commutation of riveted joint toggle on the flat axle of two-way ratchet.

2, dual-purpose box socket set according to claim 1 is characterized in that handle head through hole inner chamber is the figure of eight, is drilled with 1 small garden hole in microcephaly's inwall center of figure of eight through hole.

3, dual-purpose box socket set according to claim 1, it is arc to it is characterized in that being curved garden with the main body axis projection that rotates the two-way ratchet of flat axle, center at the garden outer surface of column thickness of curved garden arcuate main body is drilled with two gardens awl shallow bore holes, and their left-right symmetry are in the symmetrical center line of curved garden arched planes.

4, dual-purpose box socket set according to claim 1, it is characterized in that being uniform-distribution with ratchet at all positions, middle garden with positive cubic spindle nose and positive cubic hole (or positive hexagon hole, positive twelve edge hole) ratchet, the adjacent side of these ratchet horizontal sections is to be mutually 90 ° isosceles trapezoid, in the positive cubic hole of ratchet (or positive hexagon hole, positive two odd plots of land that can be cultivated holes) magnet or " U " shape elasticity card is housed.