CN101081494B

CN101081494B - Self-adjusted spanners

Info

Publication number: CN101081494B
Application number: CN200710025012XA
Authority: CN
Inventors: 汤殿明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-10
Filing date: 2007-07-10
Publication date: 2010-06-16
Anticipated expiration: 2027-07-10
Also published as: CN101081494A

Abstract

The self-regulating spanner includes one handle and at least one spanner head, which includes one fixed block, one spanner body with guide way, and one movable block. It has also one guide block withguide hole inside the guide way, one guide rod connected to the spanner body and penetrating the guide slot and the guide hole, and one spring on the guide rod. The fixed block has one work plane to form an acute angle to the datum plane of the spanner body, and the movable block has one sliding plane fitting the datum plane of the spanner body. The self-regulating spanner of the present inventionmay be used in clamping hexagonal and tetragonal fasteners and circular pipes of different sizes effectively.

Description

Self-adjusted spanners

Technical field

The present invention relates to a kind of hand-operated tools fastening, dismounting that is used for, relate in particular to and a kind ofly can regulate the spanner of openings of sizes automatically.

Background technology

At present, the instrument of the employed turn Fastener of pincers worker mainly is adjustable wrench, fork spanner, box spanner and double offset ring spanner, and this class instrument that the plumber uses is pipe wrench mostly.These instruments all are the tradition of rotational workpieces and effective tool, but a kind of instrument can only be at the workpiece of a certain given configuration, be to be that hexagonal nut that is rotated works, clamping, the circular pipe fitting of rotation be at a complete loss as to what to do that the scope of application is little at profile as spanner; The securing member that many import equipments are particularly arranged now all is to adopt made in Great Britain or size manufacturing made in U.S.A, has no idea especially to go to tighten or become flexible with existing spanner, often need use the instrument of multiple different systems for finishing the work, and is very inconvenient; In addition, when the part that uses adjustable wrench and pipe wrench at the chucking different size of frequent variations, need method by hand frequently to adjust openings of sizes, sometimes adjust improperly, also need to take out and adjust openings of sizes again, waste time and energy, delay time at stop, inefficiency.

Summary of the invention

Purpose of the present invention provides and a kind ofly can regulate the self-adjusted spanners of openings of sizes automatically.

Technical scheme of the present invention is that a kind of self-adjusted spanners has spanner handle and at least one driving end, driving end comprises fixedly pulls piece, spanner body and Flexible spanner piece, has gathering sill on the spanner body, and a side of Flexible spanner piece has guide pad, guide pad is contained in the gathering sill, has pilot hole on the guide pad; Be fixedly connected with guide rod on the spanner body, guide rod passes gathering sill, and guide rod passes the pilot hole of guide pad in gathering sill; Spring also is housed in the gathering sill, and spring housing is contained on the guide rod; The angle α that fixedly pulls between the datum level of the working face of piece and spanner body is an acute angle; The Flexible spanner piece has working face and sliding surface, and the datum level of sliding surface and spanner body is slidingly matched; It is characterized in that: a, spring adopt stage clip and are positioned at the inboard of guide pad, and perhaps spring adopts extension spring and is positioned at the outside of guide pad; The working face of b, Flexible spanner piece has first working face and second working face, and first working face is that plane or plane are provided with sawtooth, and second working face is plane or cambered surface; Perhaps the working face of Flexible spanner piece is a cambered surface, and this cambered surface is provided with sawtooth.

Fixedly pull angle α between the datum level of the working face of piece and spanner body and be 25 °～35 ° better.

Second working face can be the plane, and second working face and first working face between angle β can be 115 °～125 °.

The angle of fixedly pulling between first working face of the working face of piece and Flexible spanner piece can be 0 °～3 °.

Angle between the sliding surface of the inner face of guide pad and Flexible spanner piece can be 115 °～125 °.Spring preferably is positioned at the inboard of guide pad, and can there be counterbore the inner of the pilot hole of guide pad.

Fixedly pull on the piece and can have locating slot, be fixed with in the locating slot and insert, and the working face of inserting can be plane or cambered surface, on this plane or the cambered surface sawtooth is arranged.

The cross section of inserting can be T type cross section.

Driving end can have two, and lays respectively at the two ends of spanner handle.

The maximum open size S and the S ' of two driving ends at spanner handle two ends are preferably eligible: 1. 8mm≤S '＜S≤18mm, or 2. 18mm≤S '＜S≤28mm, or 3. 28mm≤S '＜S≤42mm.

The invention has the beneficial effects as follows, because the Flexible spanner piece under external force, its second working face or cambered surface can contact by the plate workpiece and be subjected to the counter-force of workpiece, its sliding surface can slide on the datum level of spanner body, thereby the opening size that can adjust spanner automatically diminishes, it is reached tighten workpiece fully, tighten or the work of loosening fasteners.In case end-of-job, after spanner leaves workpiece, the Flexible spanner piece can return to initial position under the effect of spring, this just makes spanner can adapt to the securing member of different size dimensions within the specific limits, the part that has overcome existing spanner chucking different size must be adjusted openings of sizes, and the scope of application is little and can only be at the shortcomings such as workpiece of certain given configuration; The present invention can not only tighten hexagonal or cubic type securing member, can also tighten circular pipe fitting, and can or unclamp the securing member of metric system, English system, each standard such as made in U.S.A and all size with spanner chucking; Time saving and energy saving, high efficiency.

Description of drawings

Fig. 1 is the structural representation of a kind of self-adjusted spanners of the present invention;

Fig. 2 is the structural representation of another kind of self-adjusted spanners of the present invention;

Fig. 3 is for the spanner body of self-adjusted spanners shown in Figure 2, fixedly pull the structural representation that piece and handle are connected as a single entity;

Fig. 4 is that the A of structure shown in Figure 3 is to view;

Fig. 5 is the structural representation of the Flexible spanner piece of self-adjusted spanners of the present invention;

Fig. 6 is the right view of Fig. 5;

Fig. 7 is the A-A cutaway view of Fig. 2;

Fig. 8 is that the B of Fig. 3 is to view;

Fig. 9 fixedly pulls the structural representation of inserting on the piece for self-adjusted spanners shown in Figure 2;

Figure 10 is the left view of Fig. 9;

Figure 11 is the user mode schematic diagram of self-adjusted spanners shown in Figure 2;

Figure 12 is the structure and the behaviour in service figure thereof of another self-adjusted spanners of the present invention;

Figure 13 is two open S of the self-adjusted spanners with two spanners shown in Figure 1 and the dimensional drawing of S '.

The specific embodiment

Below in conjunction with accompanying drawing structure of the present invention is further described specifically.

Shown in Fig. 1,5,6, structural representation for a kind of self-adjusted spanners of the present invention, a kind of self-adjusted spanners, have spanner handle 1 and two driving ends 2, driving end 2 comprises fixedly pulls piece 2-1, spanner body 2-2 and Flexible spanner piece 3, has gathering sill 2-2-1 on the spanner body 2-2, and a side of Flexible spanner piece 3 has guide pad 3-1, guide pad 3-1 is contained in the gathering sill 2-2-1, has pilot hole 3-1-1 on the guide pad 3-1; Be fixedly connected with guide rod 4 on the spanner body 2-2, guide rod 4 passes gathering sill 2-2-1, and guide rod 4 passes the pilot hole 3-1-1 of guide pad 3-1 in gathering sill 2-2-1; Spring 5 also is housed in the gathering sill 2-2-1, and spring 5 is sleeved on the guide rod 4; The angle α that fixedly pulls between the datum level 2-2-2 of the working face 2-1-2 of piece 2-1 and spanner body 2-2 is an acute angle; Flexible spanner piece 3 has working face 3-2 and sliding surface 3-3, and the datum level 2-2-2 of sliding surface 3-3 and spanner body 2-2 is slidingly matched.Certainly self-adjusted spanners also can be to have only an end that a driving end is arranged on the handle 1.

For the torsion that makes self-adjusted spanners reaches perfect condition, spanner has better grasp to go to tighten or loosening fasteners, the angle α that fixedly pulls between the datum level 2-2-2 of the working face 2-1-2 of piece 2-1 and spanner body 2-2 can be 25 °～35 °, and as shown in Figure 1, the α angle is preferably 30 °.The working face 3-2 of Flexible spanner piece 3 has the first working face 3-2-1 and the second working face 3-2-2, and the first working face 3-2-1 is that plane or plane are provided with sawtooth.The second working face 3-2-2 also is the plane, and the second working face 3-2-2 and the first working face 3-2-1 between angle β can be 115 °～125 °, as shown in Figure 1, the β angle is preferably 120 °.Certainly, the second working face 3-2-2 also can be cambered surface.Because securing member commonly used mostly is regular hexagon greatly, its opposite side is parallel, therefore, the angle of fixedly pulling between the first working face 3-2-1 of the working face 2-1-2 of piece 2-1 and Flexible spanner piece 3 is 0 °～3 °, fixedly pull on the working face 2-1-2 of piece 2-1 sawtooth is arranged, so both can better guarantee the grasp of spanner, that conveniently pulls again mouthful snaps in and throws off.Certainly, the working face 2-1-2 that fixedly pulls piece 2-1 also can not establish sawtooth, and is the plane.

Shown in Fig. 1,5,6, spring 5 adopts stage clips and is positioned at the inboard of guide pad 3-1, and the angle between the sliding surface 3-3 of the inner face 3-1-2 of guide pad 3-1 and Flexible spanner piece 3 can be 115 °～125 °, is preferably 120 °.There is counterbore the inner of the pilot hole 3-1-1 of guide pad 3-1, and the front end of spring 5 can be sleeved in the counterbore, and spring 5 just is not easy to slide and produce displacement like this, and contact area is big, and is stressed even, guaranteed better result of use.Certainly, spring 5 also can be positioned at the outside of guide pad 3-1, and this moment, spring 5 can adopt extension spring, and its outer end can be fixed on wrench body 2-2 or the guide rod 4, and the inner is fixed on the guide pad 3-1.

Shown in Fig. 1,5,6, because conventional fasteners mostly is regular hexagon greatly, and the regular hexagon interior angle is 120 °, thereby the first working face 3-2 of Flexible spanner piece 3 and the angle β between the second working face 3-3 are 120 °, and the first working face 3-2 is provided with sawtooth, has guaranteed that spanner can have better promptly effect.

Be depicted as the structural representation of the another kind of self-adjusted spanners of the present invention as Fig. 2,3,4,5,6,7,8,9,10,11.Self-adjusted spanners of the present invention, have spanner handle 1 and two driving ends 2, driving end 2 comprises fixedly pulls piece 2-1, spanner body 2-2 and Flexible spanner piece 3, have gathering sill 2-2-1 on the spanner body 2-2, one side of Flexible spanner piece 3 has guide pad 3-1, guide pad 3-1 is contained in the gathering sill 2-2-1, has pilot hole 3-1-1 on the guide pad 3-1; Be fixedly connected with guide rod 4 on the spanner body 2-2, guide rod 4 passes gathering sill 2-2-1, and guide rod 4 passes the pilot hole 3-1-1 of guide pad 3-1 in gathering sill 2-2-1; Spring 5 also is housed in the gathering sill 2-2-1, and spring 5 is sleeved on the guide rod 4; The angle α that fixedly pulls between the datum level 2-2-3 of the working face 2-1-2 of piece 2-1 and spanner body 2-2 is an acute angle; Flexible spanner piece 3 has working face 3-2 and sliding surface 3-3, and the datum level 2-2-3 of sliding surface 3-3 and spanner body 2-2 is slidingly matched.

Different with Fig. 1 structure is, fixedly pulls among Fig. 2 and has locating slot 2-1-1 on the piece 2-1, be fixed with among the locating slot 2-1-1 and insert 6, and 6 the working face 6-1 of inserting is the plane on this plane sawtooth is arranged.Shown in Fig. 7,8,9,10,6 the cross section inserted is T type cross section, can not only make stress surface bigger like this, and insert 6 be difficult for loosening.6 the working face inserted is a part of fixedly pulling piece working face 2-1-2.All the other structures all embodiment with shown in Figure 1 are identical.

As shown in figure 11, the present invention in use, when wanting fastening nut, can select the proper self-adjusted spanners of openings of sizes, opening is aimed at nut makes nut at Flexible spanner piece 3 with insert between 6, promote spanner make Flexible spanner piece 3 guide pad 3-1 along gathering sill 2-2-1 to the inside direction slide, also be that Flexible spanner piece 3 slides along the datum level 2-2-3 of spanner body 2-2 to the inside by its sliding surface 3-3, can adjust Flexible spanner piece 3 automatically and the distance between 6 of inserting.In the time can't continuing to promote spanner again, the opening of spanner with the fastener interlock, just can tighten operation by rotating spanner.Otherwise, when needs unclamp nut, operate as the same.

Be the structure and the user mode figure thereof of another self-adjusted spanners of the present invention as shown in figure 12, the working face 3-2 of Flexible spanner piece 3 is a cambered surface, and this cambered surface is provided with sawtooth.Fixedly pulls and have locating slot 2-1-1 on the piece 2-1, be fixed with among the locating slot 2-1-1 and insert 6, and 6 the working face 6-1 of inserting is cambered surface on this cambered surface sawtooth is arranged.Certainly, insert 6 working face 6-1 also can be the plane.All the other structures are all identical with the embodiment of structure shown in Figure 2.The self-adjusted spanners of this structure is mainly used in to be tightened or unclamps circular pipe fitting, can replace the pipe wrench in the prior art to use.

Shown in Fig. 1,2,13, driving end 2 of the present invention has two, and lays respectively at the two ends of spanner handle 1.The maximum open size S and the S ' of two driving ends 2 at spanner handle 1 two ends are preferably eligible: 1. 8mm≤S '＜S≤18mm, or 2. 18mm≤S '＜S≤28mm, or 3. 28mm≤S '＜S≤42mm.Like this, as long as there are three spanners just can tighten or unclamp, eight work that just can finish spanner have been finished in the prior art to the securing member of the M5～M27 of national standard defined.Certainly, the present invention also can be used for bigger opening size.

Claims

1. self-adjusted spanners, have spanner handle (1) and at least one driving end (2), driving end (2) comprises fixedly pulls piece (2-1), spanner body (2-2) and Flexible spanner piece (3), have gathering sill (2-2-1) on the spanner body (2-2), one side of Flexible spanner piece (3) has guide pad (3-1), guide pad (3-1) is contained in the gathering sill (2-2-1), has pilot hole (3-1-1) on the guide pad (3-1); Be fixedly connected with guide rod (4) on the spanner body (2-2), guide rod (4) passes gathering sill (2-2-1), and guide rod (4) passes the pilot hole (3-1-1) of guide pad (3-1) in gathering sill (2-2-1); Spring (5) also is housed in the gathering sill (2-2-1), and spring (5) is sleeved on the guide rod (4); The angle α that fixedly pulls between the datum level (2-2-2) of the working face (2-1-2) of piece (2-1) and spanner body (2-2) is an acute angle; Flexible spanner piece (3) has working face (3-2) and sliding surface (3-3), and the datum level (2-2-2) of sliding surface (3-3) and spanner body (2-2) is slidingly matched; It is characterized in that:

A, spring (5) adopt stage clip and are positioned at the inboard of guide pad (3-1), and perhaps spring (5) adopts extension spring and is positioned at the outside of guide pad (3-1);

The working face (3-2) of b, Flexible spanner piece (3) has first working face (3-2-1) and second working face (3-2-2), and first working face (3-2-1) is for plane or plane are provided with sawtooth, and second working face (3-2-2) is plane or cambered surface; Perhaps the working face (3-2) of Flexible spanner piece (3) is a cambered surface, and this cambered surface is provided with sawtooth.

2. self-adjusted spanners according to claim 1 is characterized in that: the angle α that fixedly pulls between the datum level (2-2-2) of the working face (2-1-2) of piece (2-1) and spanner body (2-2) is 25 °～35 °.

3. self-adjusted spanners according to claim 1 is characterized in that: second working face (3-2-2) is the plane, and second working face (3-2-2) and first working face (3-2-1) between angle β be 115 °～125 °.

4. according to claim 1 or 3 described self-adjusted spanners, it is characterized in that: the angle of fixedly pulling between first working face (3-2-1) of the working face (2-1-2) of piece (2-1) and Flexible spanner piece (3) is 0 °～3 °.

5. self-adjusted spanners according to claim 1 is characterized in that: spring (5) is positioned at the inboard of guide pad (3-1), and the angle between the sliding surface (3-3) of the inner face (3-1-2) of guide pad (3-1) and Flexible spanner piece (3) is 115 °～125 °.

6. self-adjusted spanners according to claim 5 is characterized in that: there is counterbore the inner of the pilot hole (3-1-1) of guide pad (3-1).

7. self-adjusted spanners according to claim 1, it is characterized in that: fixedly pull and have locating slot (2-1-1) on the piece (2-1), be fixed with insert (6) in the locating slot (2-1-1), and the working face (6-1) of insert (6) is plane or cambered surface, on this plane or the cambered surface sawtooth arranged.

8. self-adjusted spanners according to claim 7 is characterized in that: the cross section of insert (6) is T type cross section.

9. according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8 described self-adjusted spanners, it is characterized in that: driving end (2) has two, and lays respectively at the two ends of spanner handle (1).

10. self-adjusted spanners according to claim 9 is characterized in that: the maximum open size S and the S ' of two driving ends (2) at spanner handle (1) two ends are eligible:

1. 8mm≤S '＜S≤18mm, or

2. 18mm≤S '＜S≤28mm, or

③28mm≤S’＜S≤42mm。