CN2340561Y

CN2340561Y - Pivot locking mechanism of hand tools

Info

Publication number: CN2340561Y
Application number: CN 98240855
Authority: CN
Inventors: 陈俊杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-23
Filing date: 1998-09-23
Publication date: 1999-09-29
Anticipated expiration: 2008-09-23

Abstract

The utility model relates to a pivot locking mechanism of hand tools, which comprises a base with a through shaft hole, at least one resisting piece which is arranged on the hole wall of the shaft hole in a positioning way and can move between a release position and a resisting position and a butt joint end, wherein, when the resisting piece is positioned on the resisting position, the distance between the butt joint end and the shaft center of the shaft hole is smaller than the distance between the butt joint end and the shaft center of the shaft hole when the resisting piece is positioned on the release position. Therefore, a rotating shaft of the utility model can penetrate in the shaft hole in a coaxial way, surrounding end surfaces are connected with the butt joint end in an adjacent way, the rotating shaft is limited by the resisting piece, and the rotating shaft only can rotate toward the scheduled direction of the release position from the resisting position in a unidirectional way.

Description

The rotating shaft arrestment mechanism of hand tools

The utility model relates to a kind of hand tools, refers in particular to a kind of rotating shaft arrestment mechanism of hand tools.

With regard to routine techniques, provide and give the user carries out operation in the turn mode ratchet spanner or screwdriver, because of it has the controlling organization structural design of the ratchet and the brake(-holder) block of unidirectional control rotation direction, make its general in the use traditional instrument seem comparatively practical and convenient, and be happy to use by general user, though this kind routine techniques has preferable ease of use under general traditional-handwork instrument, but it still has some shortcomings to exist, and it is required under the different operating condition to satisfy the user, outlined now as after.

What take place usually is, under a narrow operating space, conventional Ratcheting hand tool can not reach the purpose of its rotary work thing, lid, under the structure design of conventional ratchet tool, it is to utilize the instrument rotating shaft in being rotated the process of predetermined stroke, the butt of brake(-holder) block and ratchet ratchet is moved on the ratchets adjacent or some numbers of teeth at interval from a ratchet, use and make to have corresponding one-directional rotation amplitude, just can carry out the working substance spinning movement, in other words, be that the operable prerequisite of conventional ratchet tool promptly is that its rotating shaft must be rotated two an adjacent ratchets commentaries on classics width of cloth at interval that is slightly larger than ratchet, can be with effect, promptly cause thus in a narrow operating space, because of the commentaries on classics width of cloth of rotating shaft can not reach this basic requirement ratchet tool can't be used, cause user's inconvenience.

Moreover, because these conventional ratchet tools are in order to the structure of control tool rotating shaft, be only to be the brake(-holder) block of single-point butt braking for ratchet and with this ratchet, therefore working as the user is subjected to one to screw more closely under the degree at the relevant work thing, when applying a bigger application of force, promptly cause the structure between the brake(-holder) block of ratchet and this single-point butt, the big application of force produces the situation of damage because of bearing so, causes the damage of instrument.

The purpose of this utility model is to propose a kind of rotating shaft arrestment mechanism of the hand tools of being made up of matrix, blocking element, and it not only can bear bigger torsion, and does not have the restriction of minimum rotation amplitude, thereby has solved the existing in prior technology problem.

The technical scheme that the utility model adopted is that it includes: a matrix, and it has an axis hole that runs through; At least one blocking element, be arranged on the hole wall of this axis hole to the location, and can resist between the position in an off-position and and move, has an abutment end, distance when this blocking element is positioned at this resistance position between this abutment end and this axis hole axle center is the distance between this abutment end and this axis hole axle center less than on this off-position the time; The rotating shaft of this hand tools is to be placed through in this axis hole coaxially, and be positioned at the end face of all sides and this and resist adjacent the amplexiforming of locational blocking element abutment end, limit this rotating shaft with this blocking element and only can resist the predetermined direction unidirectional rotation of position from this toward this off-position.

In addition, this hand tools 10 still has following many effects in use:

1. the arrestment mechanism 20 owing to this hand tools 10 is to utilize respectively these body portion 31 turns own to allow this rotating shaft 40 with respect to this matrix 21 dos one rotation, therefore, no matter the size of rotation amplitude, respectively this body portion 31 is all done the turn of a corresponding degree, and the restriction of none minimum rotation amplitude, from using down in narrow operating space easily.

This arrestment mechanism 20 be with this body portion 31 respectively fifty-fifty with all side butts of this axostylus axostyle 41, can in use power be scattered in its overall structure fifty-fifty at this hand tools 10 by this, avoid producing the damage that stress concentrations causes.

3. and in use, needs of its visual operation condition and select the portion that connects 42 of being fit at these rotating shaft 40 two ends to use are to screw or the operation of spiral shell pine.

Moreover, because this arrestment mechanism 20 is to join with mode and this rotating shaft 40 of amplexiforming cooperation, thereby this rotating shaft 40 of tolerable carries out moving axially of an appropriateness, uses to adjust it and connect the length that portion 42 protrudes, and can be used as general overlap joint extension rod use.

5. in addition, tommy bar 50 is spirally connected and otherwise the demand decision of visual reality.

Fig. 1 is the exploded view of the utility model one preferred embodiment.

Fig. 2 is an action schematic diagram of the utility model one preferred embodiment.

Fig. 3 is another action schematic diagram of the utility model one preferred embodiment.

Fig. 4 is the cutaway view of the utility model one preferred embodiment.

Further specify preferred embodiment of the present utility model in conjunction with above-mentioned each accompanying drawing now, the utility model is made of an arrestment mechanism 20, a rotating shaft 40 and a tommy bar 50.

This arrestment mechanism 20 has comprised a matrix 21 and five groups of blocking elements 30, wherein:

This matrix 21 has the matrix 22 of a proper volume, one axis hole 23 runs through the opposing end face in both sides of this matrix 22, five strips retaining tongue 24 is to be listed as fifty-fifty on the hole wall that places this axis hole 23, major axis is also vertical corresponding with the hole axle of this axis hole 23, its left and right sides lingual surface also decrescence extends along different slope inclinations, be the guide face 25 that arcuation tilts and form respectively without exception, and one slightly be smooth protuberantia and form the suspended wall face 26 of drop in elongated end end, use and respectively this 24 in adjacent retaining tongue form one respectively and can supply the ccontaining respectively accommodation space of this blocking element 30, two annular cover plates 27 are to be covered on respectively on 22 the two sides of this matrix, and be little with the aperture of the coaxial corresponding and annular distance of this axis hole 23 and than the aperture of this axis hole 23, one screw rod 28 is to be located on the side of this matrix 22, and the bar axle is also vertical corresponding with the hole axle of this axis hole 23;

Respectively this blocking element 30 has a whole body portion 31 and an elastomer 32 respectively, this body portion 31 is cylinders of the suitable external diameter of a tool, axis of a cylinder is parallel corresponding with the hole axle of this axis hole 23, and can be in this

guide face

25 and 26 moving radially of this suspended wall face along this axis hole 23, when its displacement is on this guide face 25, then be subjected to this guide face 25 guiding gradually row gradually move, use and make its displacement when the end of this guide face 25 is last, be subjected to the backstop of corresponding retaining tongue 24 and be positioned at one to resist on the position, and when its from this guide face 25 during toward these suspended wall face 26 direction displacements, promptly relatively break away from this resistance position and avoid the off-position of 26 positions to move toward hanging, and the most important thing is, when this body portion 31 is positioned on this resistance position, its in opposite directions in the abutment end 33 of these axis hole 23 hole axles apart from this axis hole hole wheelbase from, be that its abutment end 33 is little apart from the distance of this axis hole hole axle when being positioned on this off-position than this body portion 31;

This elastic component 32 is rectangular helical springs, and an end is connected in this body portion 31, and end then is connected on the tip of the tongue of adjacent retaining tongue 24 in addition, uses and has utilized 2 elastic force that this body portion 31 is bound on this resistance position.

This rotating shaft 40 has an external diameter and the similar axostylus axostyle 41 in these cover plate 27 apertures respectively, it is placed through among this axis hole 23, also stretch out respectively outside this cover plate 27 at two ends, week the side lever wall and be positioned at this and resist locational body portion abutment end 33 corresponding adjacency, two to meet portion 42 are coaxial respectively bar axle two ends that are convexly set in this axostylus axostyle 41, in order to can be connected in series use with outside appurtenances.

This tommy bar 50 is to be spirally connected by set screw and this screw rod 28 of one end, uses to change this hand tools application of force moment in use.

Composition by above-mentioned member, this hand tools 10 is that the sleeve barrel tool with general routine directly is socketed in the corresponding portion that connects 42 in use, again this tommy bar 50 of switching with the application of force with attachments such as bolts with spiral shell pine or screw, at this, referring again to Fig. 2 and shown in Figure 3, it is the different conditions that shows that this hand tools 10 has because of the difference of stressed direction of rotation in use, after user's accessory that these rotating shaft 40 mats are general is coaxial joining such as bolt with the work object for the treatment of the application of force, it is to join with working substance and be subjected to certain effect to not rotating, therefore the user is with this matrix 21 during toward turn counterclockwise, the direction of its application of force is that this body portion 31 respectively of making moves towards the direction of this resistance position, and, respectively this body portion 31 stressed be positioned on this resistance position and in this rotating shaft 40 support by after, it is still the continued application of force that is subjected in the same way, at this moment, respectively 40 mated condition that promptly become a tight butt of this body portion 31 and this rotating shaft can be used the processing operation that the working substance for the treatment of construction carries out turn thus.

And after anticlockwise PROPEL is finished, when this tommy bar of user's mat 50 is rotated in a clockwise direction hand tools, respectively this body portion 31 promptly because of the change that is subjected to force direction no longer with 40 one-tenth one close-fitting states of this rotating shaft, this reciprocal power of while and band draw respectively, and this body portion 31 moves on this off-position, in other words, promptly on the application of force of this direction, this arrestment mechanism 20 is and 40 one-tenth one states that can be pivoted relative to each other of this rotating shaft, use making this arrestment mechanism 20 force-applied all side displacements, and treat to be tight butt state with this rotating shaft 40 once more and manipulating under next time the counterclockwise application of force state for the user along this rotating shaft 40.

Claims

1. the rotating shaft arrestment mechanism of a hand tools is characterized in that it includes:

One matrix, it has an axis hole that runs through;

At least one blocking element, be arranged on the hole wall of this axis hole to the location, and can resist between the position in an off-position and and move, has an abutment end, distance when this blocking element is positioned at this resistance position between this abutment end and this axis hole axle center is the distance between this abutment end and this axis hole axle center less than on this off-position the time;

The rotating shaft of this hand tools is to be placed through in this axis hole coaxially, and be positioned at the end face of all sides and this and resist adjacent the amplexiforming of locational blocking element abutment end, limit this rotating shaft with this blocking element and only can resist the predetermined direction unidirectional rotation of position from this toward this off-position.

2. by the rotating shaft arrestment mechanism of the said hand tools of claim 1, it is characterized in that said this axis hole, it is to resist locational aperture for big corresponding to this corresponding to the aperture on this off-position.

3. by the rotating shaft arrestment mechanism of the said hand tools of claim 1, it is characterized in that said this blocking element, it has the whole body portion, and an elastomer is to be butted on the side of this body portion with an end, is bound on this resistance position with its body portion.

4. by the rotating shaft arrestment mechanism of the said hand tools of claim 3, it is characterized in that said this body portion one has the cylinder of predetermined outer diameter, axis of a cylinder is also corresponding with the axially parallel of this axis hole.

5. by the rotating shaft arrestment mechanism of the said hand tools of claim 3, it is characterized in that said this elastomer, it is the spring of a tool predetermined elastic force.

6. by the rotating shaft arrestment mechanism of the said hand tools of claim 1, it is characterized in that the blocking element of said majority, it is to be arranged at fifty-fifty on the hole wall of this axis hole.

7. by the rotating shaft arrestment mechanism of the said hand tools of claim 1, it is characterized in that said this matrix, it has the corresponding guide face that moves with the guiding blocking element, is to be based on the hole wall of this axis hole, and the cumulative extension in position is resisted toward this in this off-position certainly.

8. press the rotating shaft arrestment mechanism of the said hand tools of claim 7, it is characterized in that said this matrix, it has the retaining tongue that is used to backstop blocking element on this resistance position, is to be convexly set on the hole wall of this axis hole corresponding to this resistance position, resists blocking element by the one side end face.

9. press the rotating shaft arrestment mechanism of the said hand tools of claim 1, it is characterized in that the rotating shaft of said hand tools, it is coaxial being placed through in this axis hole, week side end face and face butt mutually with this blocking element, also stretch out respectively outside the both sides orifice end of this axis hole at two ends, and can in this axis hole, axially move back and forth, and can be connected in series use respectively with outside appurtenances in two ends.

10. by the rotating shaft arrestment mechanism of the said hand tools of claim 1, it is characterized in that said this matrix, it has an outstanding screw rod, and the bar axle is vertical corresponding with the hole axle of this axis hole, and can adjust the moment of the application of force with coaxial being spirally connected of the tommy bar of outside.