CN2767061Y

CN2767061Y - Ratchet wrench positioning structure

Info

Publication number: CN2767061Y
Application number: CN 200520002376
Authority: CN
Inventors: 赖梅香
Original assignee: YIHONG TOOL CO Ltd
Current assignee: YIHONG TOOL CO Ltd
Priority date: 2005-02-18
Filing date: 2005-02-18
Publication date: 2006-03-29
Anticipated expiration: 2015-02-18

Abstract

The utility model relates to a ratchet wheel wrench orientation structure which mainly comprises a wrench main body, wherein the top end of the wrench main body is provided with a head seat. A containing groove is arranged inside the head seat. A ratchet wheel which is coaxially arranged is arranged inside the containing groove. The center of the ratchet wheel is penetrated through a workpiece hole. The outer edge of the ratchet wheel is annularly provided with a plurality of ratchets. The opening position of the head seat is sealed by a cover plate, wherein one side of the containing groove is dented with a limit groove and at least one orientation tooth block. One end of each orientation tooth block is in shaft connection with the wall surface of the limit groove through a pivot shaft, and the other end is extended and provided with a plurality of orientation teeth. The side edge of each orientation tooth block and the wall surface of the limit groove are respectively provided with one spring to cause the orienting teeth to elastically engage with the positions of the ratchets, and the one-way limit function can be generated. Users do not need to repeatedly dismount a wrench to adjust wrench angles, and the work for installing or dismounting workpieces can be completed.

Description

The ratchet spanner oriented structure

Technical field

The utility model is relevant with a kind of ratchet spanner oriented structure, more detailed it, refer in particular to and a kind ofly fixedly turn to or switch the ratchet spanner structure that turns to.

Background technology

Traditional ratchet spanner is provided with workpiece hole in an end of wrench body, this workpiece hole periphery is provided with the concavo-convex fixing edge of number, make this workpiece hole can be sheathed on other workpiece places such as screw, and after utilizing this fixing edge chucking to fix this workpiece, driving this workpiece with switching rotates, and grip the traditional ratchet spanner of this kind when rotating when user's hand, because of the restriction of hand rotational angle is arranged, after must constantly spanner being unloaded the adjustment angle, repeat again to tighten the action that fixation workpiece rotates, up to the work of finishing the installation or removal workpiece.

Novel content

Main purpose of the present utility model is, a kind of ratchet spanner oriented structure is provided, eccentric Elastic Meshing effect by this orientation tooth piece and this ratchet, can make this ratchet can produce the action of unidirectional idle running, the user need not repeat to unload lower ejector lever and adjust the spanner angle, can finish the work of workpiece installation or removal.

Technical solutions of the utility model:

A kind of ratchet spanner oriented structure is characterized in that, includes:

One wrench body, its top has a headstock, has a storage tank in this headstock, has together dog end in this storage tank, these ratchet central authorities are installed with a workpiece hole, and around the outer rim of this ratchet and have several ratchets, the opening part of this headstock has a seal cover board; Wherein, this storage tank one side and recessed a stopper slot arranged;

One or more directed tooth pieces, this orientation tooth piece one end is connected with the wall of this stopper slot by pivot, the other end then is extended with several directed teeth, has one between the side of this orientation tooth piece and stopper slot wall and makes this orientation tooth Elastic Meshing sentence the spring that produces unidirectional position-limiting action in this ratchet.

The utility model progress effect: the utility model is by the eccentric Elastic Meshing effect of this orientation tooth piece and this ratchet, can make this ratchet produce the action of unidirectional idle running, the user need not repeat to unload lower ejector lever to adjust the spanner angle, can finish the work of workpiece installation or removal.

Description of drawings

Fig. 1: perspective exploded view of the present utility model.

Fig. 2: three-dimensional combination schematic diagram of the present utility model.

Fig. 3: the planar gesture schematic diagram () of the utility model oriented structure.

Fig. 4: the planar gesture schematic diagram (two) of the utility model oriented structure.

Fig. 5: the perspective exploded view of another embodiment of the utility model.

Fig. 6: the floor map of another embodiment of the utility model.

Fig. 7: the commutation projection action schematic diagram of another embodiment of the utility model.

The specific embodiment

The utility model ratchet spanner oriented structure mainly comprises:

One wrench body 10, as Fig. 1 and Fig. 2, its top is provided with a headstock 11, offer a storage tank 12 in this headstock 11, the ratchet 13 that has a coaxial setting in this storage tank 12, these ratchet 13 central authorities are equipped with a workpiece hole 131, these ratchet 13 outer rims also are equipped with several ratchets 132, these ratchet 13 two ends and each are extended the axle head 133 that is provided with a hollow, and the opening part of this headstock 11 is with a cover plate 14 sealings, the corresponding axis hole 121,141 that respectively is provided with cover plate 14 places of this storage tank 12 supplies axle head 133 activities of this ratchet 13 to be coupling; Wherein, this storage tank 12 1 sides and recessed a stopper slot 15 arranged;

At least one directed tooth piece 20, as Fig. 1 and Fig. 2, these orientation tooth piece 20 1 ends have a shaft 21, and on the wall of this stopper slot 15 the corresponding recessed rotation slot 151 that has, be coupling for this shaft 21, directed tooth piece 20 other ends then extend and are provided with several directed teeth 22, and be provided with a spring 23 in the side and stopper slot 15 walls of this orientation tooth piece 20, make these orientation tooth 22 Elastic Meshing in these ratchet 132 places, and should orientation tooth piece 20 off-centre be engaged in this ratchet 13 places, so that this ratchet 13 can produce the spacing effect of one-directional rotation.

As shown in Figure 3, when this ratchet 13 rotated toward the diagram clockwise direction, the ejection effect owing to this spring 23 can make this orientation tooth piece 20 can fix this ratchet 13 it can't be rotated, and rotates with the workpiece of pulling in the workpiece hole 131; Moreover as shown in Figure 4, when this ratchet 13 counterclockwise rotated toward diagram, the directed tooth piece 20 of these ratchet 13 meeting ejections moved toward the direction of this spring 23, makes this orientation tooth 22 and ratchet 132 break away from, and makes this ratchet 13 dally;

The utility model is by the eccentric Elastic Meshing effect of this orientation tooth piece 20 with this ratchet 13, can make this ratchet 13 produce the action of unidirectional idle running, the user need not repeat to unload lower ejector lever to adjust the spanner angle, can finish the work of workpiece installation or removal, and when the user needs difference idle running direction, only need the upset spanner workpiece to be inserted in the direction of the spacing rotation of promptly convertible spanner from workpiece hole 131 other ends;

See also Fig. 5 and shown in Figure 6, it is another embodiment of the present utility model, and the structure of its wrench body is identical with first embodiment, repeats no more in this, and it more includes:

At least two directed tooth pieces 30,30 ', this orientation tooth piece 30,30 ' one end is provided with a shaft 31, and on the two side walls of this stopper slot 15 ' symmetry each recessed a rotation slot 151 ' arranged, for this orientation tooth piece 30,30 ' shaft 31 symmetries are coupling, this orientation tooth piece 30,30 ' the other end then extends to be provided with counts directed tooth 32, and in this orientation tooth piece 30, be provided with a spring 33 between 30 ' side and stopper slot 15 ' wall, make these orientation tooth 32 normality Elastic Meshing in ratchet 132 places of these ratchet 13 both sides, wherein, this two directed tooth piece 30,30 ' middle more eccentric shaft is connected to a commutation projection 34, and these commutation projection 34 1 distal process are exposed to outside this headstock 11, and are provided with a toggle 35 and switch this commutation projection 34 eccentric rotary for the user;

Because this commutation projection 34 is coupling for off-centre, but the directed tooth piece 30 of its ejection one side makes it remain in the state that separates with this ratchet 13, thus, this oriented structure can keep an only side positioning tooth piece 30 ' generation position-limiting action, and reaches unidirectional spacing rotation purpose; And when the user need be switched another idle running direction, only need stir this toggle 35, to drive this commutation projection 34 eccentric rotary (as shown in Figure 7), directed tooth piece 30 ' with the ejection opposite side separates with ratchet 13, but and make and this orientation tooth piece 30 elastic recoverys and be engaged in this ratchet 13 can change the spacing rotation direction of oriented structure;

Though this case is to do explanation with two most preferred embodiments, ability can be made various multi-form changes not breaking away under this case spirit and the category in the technical staff.The above act implemented only in order to this case to be described, non-scope in order to restriction this case.Such as do not disobey various modifications or the variation that this case spirit is engaged in, all belong to this case claim.

Claims

1. a ratchet spanner oriented structure is characterized in that, includes:

One wrench body (10), its top has a headstock (11), have a storage tank (12) in this headstock, has together dog end (13) in this storage tank (12), these ratchet central authorities are installed with a workpiece hole (131), around the outer rim of this ratchet (13) and have several ratchets (132), the opening part of this headstock (11) has a seal cover board (14); Wherein, this storage tank (12) one sides and recessed a stopper slot (15) (15 ') arranged;

One or more directed tooth pieces (20) (30) (30 '), this orientation tooth piece (20) (30) (30 ') end is connected by the wall of pivot with this stopper slot (15), the other end then is extended with several directed teeth (22) (32), has one between the side of this orientation tooth piece (20) (30) (30 ') and stopper slot (15) (15 ') wall and makes this orientation tooth (22) (32) Elastic Meshing sentence the spring (23) that produces unidirectional position-limiting action in this ratchet (132).

2. according to the described ratchet spanner oriented structure of claim 1, it is characterized in that, this ratchet (13) two ends respectively have an extended hollow axle head (133), it is corresponding that this storage tank (12) and cover plate (14) are located to have, the axis hole (141) that connects for axle head (133) movable axis of this ratchet (13).

3. according to the described ratchet spanner oriented structure of claim 1, it is characterized in that, these orientation tooth piece (20) one ends have a shaft (21), have the rotation slot (151) that corresponding recessed this shaft of confession (21) connects on the side wall surface of this stopper slot (15).

4. according to the described ratchet spanner oriented structure of claim 3, it is characterized in that this orientation tooth piece (20) off-centre is engaged on this ratchet (13) and locates.

5. according to the described ratchet spanner oriented structure of claim 1, it is characterized in that, have two pivotally connected directed tooth pieces (30) (30 ') on the two side walls of this stopper slot (15 '), this orientation tooth piece (30) (30 ') other end has several extended directed teeth (32), has a spring (33) that this orientation tooth (32) Elastic Meshing is located in this ratchet (132) between the side of each directed tooth piece (30) (30 ') and stopper slot (15 ') wall.

6. according to the described ratchet spanner oriented structure of claim 5, it is characterized in that, directed tooth piece (30) (30 ') end has a shaft (31), and each correspondence is recessed on the two side walls of this stopper slot (15 ') has one for the pivotally connected rotation slot (151 ') of this shaft (31).

7. according to the described ratchet spanner oriented structure of claim 6, it is characterized in that this orientation tooth piece (30) (30 ') off-centre is engaged on this ratchet (13) and locates.

8. according to the described ratchet spanner oriented structure of claim 5, it is characterized in that also having a pivotally connected rotation in the middle of this two directed tooth piece (30) (30 ') and switch the commutation projection (34) of clutch action between two directed tooth pieces (30) (30 ') and ratchet (132).

9. according to the described ratchet spanner oriented structure of claim 8, it is characterized in that commutation projection (34) connects for eccentric shaft.

10. according to the described ratchet spanner oriented structure of claim 9, it is characterized in that these commutation projection (34) one distal process go out outside this headstock (10), and have the toggle (35) that a confession user is switched this commutation projection (34) eccentric rotary.