CN202878176U - Novel universal portable wrench - Google Patents

Abstract

A novel universal portable wrench can rotate or measure a nut, a bolt and a tube, can substitute an adjustable wrench, an electric wrench and dozens of non-adjustable wrenches, can assemble and disassemble nuts and bolts of all specifications of international standard, new national standard, old standard, German standard, Italian standard and the like and has the functions of a straight ruler, a punch and nail prying. The novel universal portable wrench overcomes the defects that a traditional wrench is large in size, large in weight, inconvenient to carry, low in work efficiency, high in manufacture cost, small in application range and the like. Two dozen of different-specification wrench ports are hollowed on the same metal sheet and are regularly connected according to the size. One side of each wrench port is arranged on a straight line to form a long-strip-shaped wrench port group, the width of the wrench port group progressively changes, and the length of the wrench port group is the sum of the lengths of all wrench ports. A guide port is arranged at the inlet position of each wrench port, the widths of the guide ports gradually decrease from outside to inside, notches are respectively arranged on two sides of each guide port, and the specifications and the sizes corresponding to nuts and bolts are marked adjacent to the guide ports. A main body of the wrench can serve as the wrench ports and a handle and is further provided with centimeter and inch scales, a rocker handle and a lifting ring.

Description

The light spanner of Novel universal

Affiliated technical field

The utility model relates to a kind of light spanner of Novel universal that can rotate or measure the effects such as nut, bolt and pipe.

Background technology

For rotary nut and bolt people have produced fork spanner, double offset ring spanner, box spanner, adjustable wrench and electric wrench.But all there is a kind of another shortcoming in these spanners: weight is large, volume is large, carry inconvenience, inefficiency, cost of manufacture is high, price is high, function singleness and accommodation are little, easily slippage etc. on nut and the bolt.

The every handle of fork spanner, double offset ring spanner and box spanner (or each sleeve) is merely able to rotate a kind of nut (or bolt) of specification, have to be equipped with several handles even more handles (individual) different size in order to rotate more nut (or bolt), several like this handles even more handles (individual) spanner are added up and are made volume and weight all very large, and seem very in disorder, therefore carry, transport and preserve all inconvenient.To also have a kind of shortcoming be to match the long time of the needs of specification finding out with nut (or bolt), especially to nut, bolt with pull mouthful people that the range estimation ability is not high and take by mistake into easily and do not match, makes people's operating efficiency not high.Generally all can not the choice and operation spanner in the adverse circumstances that to also have shortcoming be dark at light or be difficult to open eyes.

As if adjustable wrench solved above-mentioned some problem, as long as can rotate the nut (or bolt) of numerous specifications once handle, on the surface, adjustable wrench can replace numerous back-up wrenches, but brought again new problem, time spent also is long when mouthful width is pulled in adjusting, particularly under being not easy situation that turn or adjusting device (worm gear) surface have greasy dirt to skid, the adjusting device corrosion more expends time in, unfamiliar people is disclination direction in revolving wormgear often also, and is used for up to several seconds even tens seconds.Although this " slight " several seconds even tens seconds, speedily carry out rescue work, the urgent occasions such as the disaster relief and war spend more these times and may cause the loss of great property and life! If using spanner very frequent at ordinary times, it also is no small numerical value that the time cumulation that disorderly takes gets up.Use adjustable wrench not only time-consuming, and the adjustable wrench of growing up is difficult to one-handed performance when mouthful width is pulled in adjusting, especially unscrewing or tightening in fact and can not play a role some special nut, because worm gear and live pull can not accomplish between the lip very close to each other, after turbine regulates, need only and exert oneself a little, live and to pull lip and will stay the direction of pulling lip and move a segment distance to leaving, the width of pulling mouthful is increased, so just easily from the upper slippage of nut (or bolt).This is only theoretical infers, but countless having fact proved arranged.For example once inventor's family new house is fitted up, there is a cutting machine need to change saw blade, owing to can not find at that time fork spanner, only has the adjustable wrench of using, one changed and several the new spanner of famous brand has not all been unscrewed the bolt on the saw blade, because the head thickness of bolt is little, spanner is firm once slippage with strength out, in order to stop slippage, one personal pin slams spanner and presses to bolt, and another person pulls spanner, repays and has tried all not have successfully again and again, have at last go for a fork spanner, just unscrewed like a cork bolt with people of this fork spanner.When being rotation hexagonal (hexagon)nut (or bolt), another shortcoming of adjustable wrench and fork spanner can not as double offset ring spanner, do the transposition clamping of 30 degree angles, be merely able to the angle transposition clamping with 60 degree, in narrow space, be subject to like this restriction of using.It is that thickness is excessive that adjustable wrench also has a shortcoming, and this can't use in the machine of many compact conformations.Perhaps the designer of adjustable wrench was for the consideration that improves mechanical strength at that time, the screw thread of pulling between lip and the worm gear alive is very very thin, can not accomplish as other position thick solid, its mechanical strength is far smaller than stays positions such as pulling lip and handle, in rotary nut (or bolt), all power all can be delivered to live and pull on the screw thread of lip and worm gear, pull lip or handle fracture if stay, living so and pull lip with worm gear has damaged for a long time, also may be that very thin screw thread morning of nut (or bolt) is to have damaged.Therefore because this " short-board effect " arranged, adjustable wrench there is no need to make so thick and heavy.The random expense in material and space has been caused at thick and heavy position, also makes the spanner scope of application limited and carry, transport inconvenience.In fact adjustable wrench be not one omnipotent, pull mouthful greatlyr, volume and weight is larger, so in order to take into account nimble and price, adjustable wrench also has the multiple specification that varies in size, those little adjustable wrenches are just helpless to larger nut (or bolt).

Above-mentioned adjustable wrench, fork spanner, double offset ring spanner and box spanner people in rotary nut (or bolt) holds the continuous rotation that it can not make 360 degree, 720 degree, approximately the rotation half-turn just need to change the another hand or temporarily spanner be broken away from nut (or bolt) replacing clip position and could continue rotation, needs so again to spend the long time.

It is very high that electric wrench seems operating efficiency, but shortcoming is also very large, in the time of use suitable power supply must be arranged, because the brush of work time the inside can constantly produce electric spark, so can not in inflammable and explosive environment, use, otherwise might cause a serious accident.If the insulation variation is short-circuited or leaks electricity, probably cause fire and circuit to damage, also might cause user and other adjacencies personnel injures and deaths of getting an electric shock, particularly in work high above the ground, also might cause electric shock person from the secondary injury of falling from high altitude.Because need wind-cooling heat dissipating, electric wrench can not be made sealing, thus can not in rainwater and water, work, otherwise can leak electricity and consequence that self damages.If also have misoperation, may cause so the mechanical damage of people and thing.Because large, the weight of volume is large and shake is large, can not use at narrow space, generally can not one-handed performance, can not operate at the rapid wear object, carry, transport and preserve all inconvenient.Because noise is large, can not use in requiring quiet environment.In order to adapt to all size nut (or bolt), also as the nut setter spanner, need to be equipped with the sleeve of numerous different sizes, when changing sleeve, waste time and energy equally, and these sleeves are lost easily again and are dropped, if drop on the machine that runs up, can cause similar aircraft collision to the same consequence of flying bird.Control because torsion is bad, the torsion that nut (or bolt) is subject to is excessive or too small, stays hidden danger to machinery.To also have larger shortcoming be complex structure, be out of order easily, maintenance difficulty is large, the life-span is short, manufacturing cost is high and price is high.

Summary of the invention

, all shortcomings such as volume large, carry inconvenience, inefficiency, cost of manufacture high, price high, function singleness and accommodation little large for the weight that overcomes fork spanner, double offset ring spanner, box spanner, adjustable wrench and electric wrench, the utility model provides a kind of Novel universal light spanner.The light spanner of this Novel universal has not only overcome all shortcomings of above-mentioned spanner, has also increased the innovation of other side.

For achieving the above object, the technical solution adopted in the present invention is:

1, have the sheet material of certain mechanical strength that the mouth of pulling of two or more different sizes is set at same metallic plate or other, it is arranged together by rule that these pull mouth, pulls mouthful distributing position at two ends or centre or the edge of sheet material.Sheet material is the constituting parts of pulling mouth, it is again the handle of spanner, a special thick and heavy handle is arranged unlike conventional spanner, make its volume, weight, raw material greatly reduce, the hole of hollow out owing to pulling mouth at sheet material simultaneously, the place of pulling mouthful more hollow outs is just more, the weight of whole spanner is just less, cost is just less, further reduced so again weight, volume and cost, again because Thickness Ratio one is little the adjustable wrench of median size (for example 250 * 30), and also simple in structure, so its weight, volume and cost are less than medium sized adjustable wrench, and be more much smaller especially than electric wrench.When actual production, can tens kinds of different sizes be set to be adapted to the mouth of pulling of all size nut (or bolt) at same sheet material, therefore, the utility model can replace tens fork spanners, double offset ring spanner and box spanners.Cost is less than the value of the average handle of fork spanner, double offset ring spanner, box spanner and adjustable wrench.Both can in common environment, operate, also can be in water, operate in the very environment that is obstructed of night, dust, heavy rain, dust storm and smog visual isopter, like this can speedily carry out rescue work, the well effects of urgent occasion performance such as the disaster relief, war.

2, two or more are pulled mouth and link to each other at length direction, forming a width is that all single strips of pulling mouthful lengths sets are pulled mouth by shelves variation, length.As a further improvement on the present invention, can allow like this user in pulling mouthful group, find the suitable mouth of pulling easily and quickly, and have the function of sled nail and punching pin.

3, two or more are pulled mouth and the unified arrangement of one side is arranged point-blank.As a further improvement on the present invention, so not only be conducive to attractive in appearance and fast clamp nut (or bolt), and except rotating the even number of sides nuts (or bolt) such as four limits, hexagon and eight limits, can also rotate the nut (or bolt) of the odd number sides such as three limits, five limits, it is also easier to make.

4, a mouthful porch is pulled in setting targeting port.As a further improvement on the present invention, can allow like this nut or bolt within two seconds, enter fast correct position.

5, arrange to pull and mouthful pull from outside to inside a mouthful width and diminish gradually.As a further improvement on the present invention, each width of pulling mouthful diminishes from outside to inside a little gradually like this, can make clamping nut (or bolt) tightr, avoids slippage, can also clamp in advance a nut (or bolt) and be screwed on the machine.

6, the both sides of pulling mouth are set a breach is respectively arranged.As a further improvement on the present invention, comparing with adjustable wrench or fork spanner has like this increased a kind of method of clamping, can do 30 degree transposition clampings in rotation hexagonal (hexagon)nut, bolt, has overcome the shortcoming that adjustable wrench and fork spanner can only be done 60 degree transposition clampings.

7, will pull specification and the size that mouthful adjacency mark and nut (or bolt) adapt.As a further improvement on the present invention, this not only can help the user further to shorten the time of clamping nut (or bolt), and can help the unfamiliar people of nut (or bolt) is identified its specification, can also play the effect of similar slide calliper rule, the size of the article that Measurement accuracy or appraisal ruler are not easy to measure, diameter such as cylinder, cone, pipe and spheroid, the opposite side distance of prism from and catercorner length, the vertex distance of antarafacial body and cuboid, leg-of-mutton high.

8, rocking handle is set.As a further improvement on the present invention, on spanner, one or more rocking handle can be set, purpose is to make nut (or bolt) make the at any angle fast rotational such as 360 continuous degree, 720 degree, and having overcome fork spanner, double offset ring spanner, box spanner and adjustable wrench all can not atwirl shortcoming.And this rocking handle both installed easily, also removed easily, used to adapt to different occasions.

9, suspension ring are set.As a further improvement on the present invention, convenient like this spanner is hung over it, on the key-ring or on the wall or on other article, can also with the suspension ring circle on electric wire or cord, allow spanner pass to remote lower by eminence.

10, the ruler scale is set.As a further improvement on the present invention, the utility model also has ruler functions like this, can bring convenience for the user provides measurement, line and graduating with cutter.

The beneficial effects of the utility model are, a spanner can play tens fork spanners, double offset ring spanner and box spanners, weight, volume, cost less than or much smaller than fork spanner, double offset ring spanner, box spanner, adjustable wrench and electric wrench, the function ratio conventional spanner is many, and structure is simpler, and it is easier to make, use more convenient, faster, accommodation is wider, and operating efficiency is higher, and security reliability is higher.Owing to be provided with targeting port in each porch of pulling mouth, the operator uses the utility model as long as spanner is pass by towards the general direction translation of nut (or bolt), perhaps translation adds rotation, translation is motionless only just knows that with feel spanner has arrived the suitable mouthful position of pulling, as long as whether also need rotary handle to reach the normal position also is with feel, so just can two seconds with interior utmost point short time success clamping nut (or bolt), do not need as using conventional spanner, be certain about in advance the specification of nut (or bolt), then in a lot of back-up wrenches, select suitable spanner or sleeve, perhaps rotate again and again the turbine of adjustable wrench and pull a mouthful width with adjusting.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the shape assumption diagram that first embodiment of the utility model looks into from different two-Way Observations with Fig. 2.

Fig. 3, Fig. 4 and Fig. 5 pull mouthful and hypothesis is pulled the situation that nut (or bolt) arranged in the mouth in order to check.

Fig. 6 illustrates the utility model also rotatable triangle, four jiaos, five jiaos and the special nut such as anistree.

Fig. 7 illustrate the utility model also rotatable pipe and pipe directly.

Fig. 8 and Fig. 9 illustrate of the present utility model pull the mouth from outside to inside width diminish gradually.Fig. 9 is the amplification picture that the M18 of Fig. 8 pulls mouthful, carefully sees and looks into and can find out, to pull mouthful width more and more less to inner by entrance, do like this be make pull that tight-lipped folder nut (or bolt) makes it can slippage.

Figure 10 represents that take nut (or bolt) as the center of circle, the operator holds rocking handle fast rotational nut (or bolt).

Figure 11 and Figure 12 represent in addition two kinds of methods of clamping nut (or bolt).

Figure 13 illustrates the utility model also can play the measurement effect, can measure the external diameter of pipe and internal diameter, cylindrical diameter, leg-of-mutton height, the vertex distance of antarafacial body, back gauge and the vertex distance of prism, and the diameter of estimation spheroid etc.

Figure 14 illustrates the utility model and also has ruler functions, so that line and graduating with cutter.

Figure 15 illustrates the utility model also can prize nail.

Figure 16 illustrates the effect that the utility model also has punching pin.

Figure 17,18,19,20,21,22 illustrates the process of the utility model fast clamp nut (or bolt).

Figure 23 is the shape assumption diagram that second embodiment of the utility model looks into from different two-Way Observations with Figure 24.

Figure 25 and Figure 26 are that hypothesis is pulled the situation that nut is arranged in the mouth in order to check the pulling mouth of second embodiment.

Figure 27 is the 3rd shape assumption diagram that embodiment looks into from different two-Way Observations of the utility model with Figure 28.

Figure 29,30,31 and 32 is shape assumption diagrams of early stage four blanks of the utility model embodiment.

Figure 33 is the structure chart of rocking handle.

In Fig. 1, Fig. 2, Figure 23 and Figure 27: 1. wrench body, 2. pull mouthful (the residing position of each nut is to pull mouth in Fig. 3, Fig. 4, Figure 25 and Figure 26), 3. breach, 4. rocking handle is 5. pulled the specification that mouth is adapted to nut, 6. pulls mouth and is adapted to the opposite side distance of nut from (unit is millimeter), 7. targeting port, 8. suspension ring, 9. ruler centimeter scale, 10. ruler inch scale.

The specific embodiment

In Fig. 1 to 32 (except Fig. 9), existing pull mouthful (2) of wrench body (1), the handle of holding concurrently again, the operator both can one-handed performance, can hold an end or hold respectively the two ends operation by both hands again.Main body (1) is formed by metal or other material manufacturing, according to the nut specification of China and the international standard (it is also conceivable that other standard), is provided with the mouth of pulling of tens kinds of different sizes adapting with nut.It is arranged together according to rule from big to small that these pull mouth, pulls mouthful distributing position at two ends or centre or the edge of wrench body (1).Wherein in Fig. 1 to Figure 31 (except Fig. 9), these are pulled mouthful minutes two groups or one group and link together at length direction, form width by shelves change, length is that all single strips of pulling mouthful lengths sets are pulled a mouthful group.These pull mouth that a side is unified arranges point-blank, and there is targeting port (7) each porch of pulling mouthful.Each pull mouth from outside to inside width diminish gradually, respectively there is a breach (3) both sides, adjacency has marked the specification (5) that adapts with nut (or bolt) and the opposite side size (6) take millimeter as unit.Rocking handle (4) and suspension ring (8) also can be installed or dismantle to wrench body (1) at any time.In first embodiment, also be provided with centimeter scale (9) and inch scale (10), such as Fig. 2.

Each pulls the utility model mouthful (2) and can coincide with nut is fine, such as Fig. 3 and Figure 25.

May need to do the 30 low-angle transposition clamping nuts of spending at narrow space, each is pulled mouthful both sides and has breach (3) owing to the utility model, and the clamping that therefore replaces still can coincide with nut is fine, such as Fig. 4 and Figure 26.

The utility model not only can rotary nut, can also swivel bolt, and such as Fig. 5.

The utility model also adapts to for the rotation of uncommon triangle, four jiaos, five jiaos and anistree nut, such as Fig. 6.In Fig. 6, the triangle nut that is in position between M16 and the M18 is arranged and pull mouthful (2) and do not have fine coincideing, but can do the anticlockwise rotation to it, if need to do clockwise rotation, as long as with spanner two ends exchanges, in fact, carefully analyze and to find not exchange two ends and also can do to rotate clockwise, because the leg-of-mutton length of side is greater than height, the triangle nut can not be done relative rotation with spanner; Also have the situation of a pentagon nut that is in position between M10 and the M12 the same with above-mentioned triangle nut, remaining triangle, four jiaos, five jiaos and anistree nut and spanner match, and it is no problem undoubtedly rotating them.

If on the rotation pipe directly and pipe, the instrument that usually adopts is pipe vice, and the utility model also can rotate, and such as Fig. 7, if frictional force is inadequate, can insert the things such as shred.

When rotary nut (or bolt), bothersome is that spanner is from the upper slippage of nut (or bolt), need again clamping, and the reason of slippage is to pull mouthful clamping nut (or bolt) defective tightness, is there way to address this problem? both sides of pulling mouthful (2) of the present utility model are not parallel, but from entrance inward two lateral extents diminish gradually, such as Fig. 8 and Fig. 9, the inside distance than the opposite side distance of nut (or bolt) from point a little, when spanner makes nut (or bolt) pull mouth by spreading when entrance arrives the inside to nut (or bolt) translation, under the elastic reaction of pulling mouth, nut (or bolt) is pulled mouth and is held tightly.Screwed out when coming when nut (or bolt) in addition, can not dropped, can avoid having an accident and the drop worry of nut (or bolt) of searching.Also have, if nut (or bolt) need to be installed on the machine, can be as Fig. 8 a nut of prior clamping (or bolt), screw on again, this can replace placing in advance nut (or bolt) with hand for high temperature or dangerous or have in the dirty situation is arranged.

When producing and maintaining machinery, particularly speedily carry out rescue work and war etc. in emergency circumstances, best fast rotational nut (or bolt), the utility model is provided with rocking handle, when rotary nut (or bolt), and hand-held rocking handle, take nut (or bolt) as the center of circle, be radius take the center of circle to the rocking handle distance, with arbitrarily angled fast rotational, such as Figure 10.Two rocking handles are arranged in Figure 10, select the rocking handle of different distance, can take into account the factor of this two aspect of moment and angular speed, when nut (or bolt) is tighter, need the high-torque rotation, at this moment can change again one-handed performance is that both hands are respectively held a rocking handle operation.When shaking rocking handle, in order to prevent that spanner is from the upper slippage of nut (or bolt), can take following measures: 1, in rotation, nut (or bolt) is regarded as the center of circle; rocking handle is made circular motion with certain radius; if the direction of exerting oneself when allowing rocking handle shake becomes a little angle with the tangential direction of circle; that is to say to allow power resolve into two component; a component makes rocking handle make circular motion; another little component makes spanner leave the trend of moving in the center of circle; so spanner and nut (or bolt) just can close contacts, be not easy slippage.2, adjust the position of spanner and nut (or bolt), to make rocking handle do the plane of circle of circular motion vertical with horizontal plane, perhaps substantially vertical as far as possible.Can avoid like this going up slippage owing to the gravity reason of spanner self from nut (or bolt).3, change another kind of method of clamping, utilize the function (pulling the position bolt in the mouth such as M12 among Fig. 5) that mouth has binding nut (or bolt) of pulling of introducing previously, and the rocking handle below when selecting rocking handle, selecting among Figure 10, more effective in conjunction with the second measure again.

In some narrow especially space, do not allow clamping nut (or bolt) as Fig. 8 and Figure 10, at this time can take the method for clamping as Figure 11 and Figure 12.If rotate gruellingly, can superincumbently pull and insert rod-like articles (such as club, iron bar etc.) in the mouth to increase moment, hold just light rotary nut (or bolt) of rod-like articles.

When measuring length, can adopt ruler, but when the diameter of measuring pipe, cylinder, prism or diagonal distance, often can not measure in the end, so ruler be just helpless, at this moment can use kind of calliper.But do not have slide calliper rule in many occasions, the utility model can also play the measurement effect, such as Figure 13.In Figure 13, can clearly be seen that according to pulling mouthful size (6) of (2) next door mark the diameter of pipe is 27mm, the leg-of-mutton height in triangular prism cross section is 21mm, cylindrical diameter is 13mm, the diameter of spheroid is between 18 to 21mm, and the internal diameter of pipe (need to measure in the end) is 30mm, and the vertex distance of antarafacial body is 36mm, the opposite side distance of eight prisms is from being 30mm, and the vertex distance of six prisms is 36mm.In fact just can find out among in front Fig. 3 each pull in the mouth the nut opposite side distance from, as if the size that how to seem to pull mouthful limit only pulled for nut (or bolt) selecting properly and mouthful marked, in fact the size that this measurement effect helps the user to identify nut (or bolt) has more practical significance, the nut damage of for example pulling in the mouth as 27mm needs to change, operator or collaborationist can only just can find the nut of just size according to this size numerical value, do not need to take the bad contrast of going.

The utility model also has ruler functions, can measure the size of object according to centimeter scale (9) and inch scale (10), can also assist to draw and graduating with cutter, such as Figure 14.

The utility model also has the effect that prizes nail, such as Figure 15.

The utility model also has the effect of punching pin, by hammer the object in the patchhole is gone out, such as Figure 16.

The front has mentioned that the utility model can fast clamp nut (or bolt), and is more faster than traditional spanner, how so accomplish? Figure 17 to Figure 22 is the fast clamp position fixing process figure to nut.The black line that nut is drawn above among the figure is drawn for the ease of much angles of having observed cap rotation.Suppose that the hand-held spanner of operator is close towards nut, the state of nut as shown in figure 17, nut enters (relative motion under the effect of spanner targeting port (7), as follows) the outmost mouth of pulling, if this moment, nut can rotate freely, can be parallel with the limit of pulling mouthful and press close in a limit of nut, as shown in figure 18, spanner is continued translation, and nut just can successfully arrive very soon M12 final position shown in Figure 22 and be jammed.If but nut can not rotate freely, the operator spanner rotation can be made spanner to pull mouthful left side parallel with a limit of nut and press close to, namely become Figure 18 state, then continue the translation spanner, make nut arrive position shown in Figure 22.If originally spanner is Figure 19 position near nut, the translation spanner makes nut continue deeply to pull a mouthful group, the targeting port that M14 pulls mouth collides nut one side, supposes that nut can rotate freely, and arrives M14 behind rotation tens degree and pull a mouthful position under the targeting port effect, such as Figure 20, and then the targeting port pulled mouthful of M12 collides nut one side, and nut continues rotation, such as Figure 21, nut is pulled by M12 and mouthful is clamped when rotating to Figure 22 position, finishes clamping process.If but nut can not rotate freely when Figure 19 position, the operator is as long as move spanner toward the right, and the rotation low-angle makes a limit of nut parallel with the left side of pulling mouth and press close to, then the translation spanner, make nut continue deeply to pull a mouthful group, final M12 pulls mouth and clamps nut.Also have a kind of situation, when the spanner translation, nut arrives Figure 21 position, if nut can not rotate freely, so nut is pulled a mouthful position at M14 and " blocked ", but have no relations, the operator can make nut arrive M12 to pull a mouthful position as long as spanner rotated a little.More than operation does not even need to go to see with eyes as long as 1-2 can finish second, only can accomplish with feel.

Figure 23 and Figure 24 are second embodiment of the present utility model, do not pull mouth in the middle of different from first embodiment is, and the edge has and pulls mouth, and this is in order to be adapted at that the narrow especially occasion in some spaces is used and design.Figure 25 and Figure 26 be hypothesis each pull the situation that nut is arranged in the mouth, as can be seen from the figure, in the time of with two kinds of angle clamping nuts, each pull mouthful can with the nut good agreement.

Figure 27 and Figure 28 are the 3rd embodiment of the present utility model, different from the first two embodiment is that spanner is smaller and more exquisite, if rocking handle (such as Figure 28) is not installed, its volume and weight is also less than the mobile phone that has, can put easily pocket into, carry more convenient.

Figure 29,30,31 and 32 is shape assumption diagrams of four early stage blanks of the utility model embodiment.From several years ago, the inventor carried out hundreds of time improvement to spanner and just drew first, second and third embodiment of the present utility model.

Figure 33 is the structure chart of the rocking handle in the middle of the utility model.Formed by center-pole, slip pipe, plain cushion, bullet pad and screw by Fang Youyuan.

Although below described by reference to the accompanying drawings embodiment of the present utility model, those skilled in the art can make various changes and modifications in the scope of claim.For example the opposite side size with M8, M10, M12 and M14 changes to respectively 14,17,19 and 22 millimeters, to be adapted to old-national's mark and the nut of foreign standard and the dismounting of bolt.

Claims (10)

1. light spanner of Novel universal, comprise and pull mouth and handle, it is characterized in that: have the sheet material of certain mechanical strength that the mouth of pulling of two or more different sizes is set at same metallic plate or other, it is arranged together by rule that these pull mouth, pulls mouthful distributing position at two ends or centre or the edge of sheet material.

2. according to the light spanner of claim 1 described Novel universal, it is characterized in that: it is continuous at length direction that two or more pull mouth, and forming width is that all single strips of pulling mouthful lengths sets are pulled mouth by shelves variation, length.

3. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: two or more pull mouth has the unified arrangement of a side point-blank.

4. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: pulling a mouthful porch has targeting port.

5. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: pull and mouthful pull from outside to inside a mouthful width and diminish gradually.

6. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: respectively there is a breach both sides of pulling mouth.

7. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: pull mouthful adjacency and marked specification and the size that adapts with nut (or bolt).

8. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: rocking handle is arranged.

9. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: suspension ring are arranged.

10. according to claim 1 or the light spanner of 2 described Novel universals, it is characterized in that: the ruler scale is arranged.

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