CN1248508A - Spanner tool and method for releasing various fasteners - Google Patents

Abstract

The present invention relates to a wrench tool with support arm and retention structure and its method. Said invention is applicable to nut, bolt, screw or other similar material, and mainly includes three portions of supporting arm, force-applying arm and support seat, in which said supporting seat is desgiend for holding bolt head, and transferring force moment by means of turning shaft of manual tool, the supporting arm is made into the form of that its upper end possesses the support seat, and the force-applying arm is used for applying force, and the supporting arm and force-applying arm both posses bolt-lock mechanism related to the turning shaft. When they are fastened in identical direction, the force moment of the force-applying arm provided by movement of bolt-lock mechanism of supporting arm can be applied. Besides, said manual tool can raise torsional force.

Description

The instrument and the method for spanner of various fixtures is used to get loose

The invention relates to a kind of instrument of spanner (as: nut, bolt, screw etc. or related analogs) of the various fixtures that are used to get loose.

In all mechanical actions; bolt and nut etc. all must be locked at set intervals; especially be in and be exposed under the outer environment; usually can becoming, difficulty gets loose; it seems that this nut and bolt are through some processes screw thread friction of promoting and deciding therebetween; the most tangible is exactly corrosion, changes the distortion that produces and increases tightness and increase friction between the surface but also have in time, causes the resistance that gets loose to increase.

This problem is that the binding that the most normal example well known appears at the vehicle wheel is fixed; for example: after the vehicle wheel is punctured; it must be removed; the problem that must face is the fixedly nut or the bolt of wheel on getting loose this vehicle axles; because safety goes up misgivings; those nuts and bolt are quite firmly tight and are tightly locked; if they are by some garages; after tire store machine tool commonly used is locked; it is very tight then can to become usually; it is evident that; general normal or more not athlete scholar can't obtain get loose this nut or the required torsional forces of bolt with simple tool appended on the vehicle, if especially after their locking through segment length's time.

Most of situations, people can try to increase the moment of nut or bolt of getting loose, and common method has with traditional equipment extends its arm of force via a body or analog, and in addition, the more weak people of the bodily form may carry out the work that gets loose hardly.More common also have with sudden force one to turn round or this instrument of getting loose of hammering has the bigger moment of acquisition, in any case these increase the operation behavior of torsion in the short time, all is to require great effort very much and damage easily.

Behind nut and bolt looseness; a lot of situations can very rapidly take place; apply the people of big moment on instrument; must reduce moment now; also may be very difficult to control, and the result normally nut, instrument or operator itself one turn round with sudden force, most of instruments all have only with nut or bolt head and contact; so can cause most instruments and nut, each self-separation of bolt head, can cause the damage of bolt head and instrument usually.

A nut method that is usually used in combining closely promptly is to apply moment on bolt, so bolt be exposed to strike that heat, temperature closes and (or) in the chemical solution, these measures are usually when applying moment, follow and the most difficult resistance of nut that gets loose, in fact particularly, if the application of force is to fix and lasting, not having instrument is the moment of design in order to keep applying, must be by the continuous application of force of user oneself to finish the maintenance of moment.

Relation when another problem often increases locking or gets loose this nut or bolt, the angle that the limited space of that rotary nut, bolt and spanner knock is also restricted.

Main purpose of the present invention, aim to provide a kind of instrument and method (as: nut, bolt, screw etc. or related analogs) of spanner of the various fixtures that are used to get loose, this instrument there is no the deficiency of any aforesaid common tool, and its be with simple, fast and to human temperature and mode carry out the work of the nut that gets loose, bolt, it is the action that utilizes reaction force and two latch mechanisms with a moment amplifying device, time apply moment through a segment length, but and the constraint that effective attenuation causes because of friction.

Another object of the present invention is that a kind of tool normalization, size chemical industry tool are being provided, and makes its unquestionable generally (as: vehicle) standing instrument that becomes.

As for detailed construction of the present invention, application principle, effect and effect, the then explanation of doing with reference to following accompanying drawing, can be understood completely:

Fig. 1 is the main partial structure three-dimensional exploded view of instrument of the present invention.

Fig. 2 is a latch mechanism of the present invention section of structure partly.

Fig. 3 is another profile of Fig. 2.

Fig. 4 is an operational difference curve between the present invention and conventional tool.

Fig. 5 is that one of instrument of the present invention changes structural form.

Fig. 6 is that moment of the present invention is amplified partly combining structure.

Fig. 7 is another specific embodiment of instrument of the present invention.

Specific embodiments of the invention comprise: a support arm 1, one force arm 2 and a supporting base 3 etc. three partly, this support arm 1 comprises that one extends the support arm lid 5 that arm 4 and is incorporated into these extension arm 4 ends, this support arm 5 has a circular hole, and its inboard is provided with groove, one rotating shaft 6, provide in the circular hole of aforementioned support arm lid 5, this rotating shaft 6 mainly comprises two partly, and can cover 5 rotations that link to each other forward with support arm, but if reverse along support arm lid 5 then by locked, first element of rotating shaft 6 be one with support arm lid 5 central parts that are connected 61, this central part 61 has the section of a circle basically, its diameter is consistent with the circular hole internal diameter of support arm lid 5 approximately, the central part 61 of rotating shaft 6 also comprises a sunk area, be provided with latch mechanism as described below altogether, the one sincere rotating shaft 6 of lock of those latch mechanisms and 5 rotations of support arm lid, cause rotating shaft 6 can rotate freely in a direction, then be lockable in other direction, it is widely known by the people most is the gear spanner, side at central part 61, one end of this rotating shaft 6 is provided with a first end 62, it has one non-circular and can be a rectangle or hexagonal section, this support arm 1 more comprise one adjacent to support arm lid 5 protrude out shoulder 7, this protrudes out shoulder 7 and is provided with an oval hole and the identical bearing of trend of rotating shaft 6 tools.

Specific embodiments of the invention comprise a force arm 2 and a bearing 3, this force arm 2 comprises a moment amplifying device 8 of being made up of high-tensile strength moment arm 9 and low two arms such as moment arm 10 grades, one arm of force lid 11 is arranged at an end of this high-tensile strength moment arm 9, should form a bifurcated 13 in the end of closing on rotating shaft 6 by low moment arm 10, leave suitable distance and clamping between these bifurcated 13 2 batters and take on 7 two sides in protruding out of support arm 1, should can rotate along the periphery that protrudes out shoulder 7 by always being located at first rotating shaft 12 between bifurcated 13 2 batters by low moment arm 10, this first rotating shaft 12 then extends through this and protrudes out shoulder 7 oval hole, and this high-tensile strength moment arm 9 can penetrate the batter that grips bifurcated 13 and rotates in low moment arm 10 peripheries via one second rotating shaft 14.

Via above-mentioned low moment arm 10, the synthetic moment amplifying device 8 of high-tensile strength moment arm 9 structural group separately, apply the low moment of a long displacement in low moment arm 10, can be converted into a short essay high torque at high-tensile strength moment arm 9, the main determining factor of this moment amplifying device 8 is to be 12 on rotating shaft 6,14 on second rotating shaft and second rotating shaft 14, first rotating shaft relation of distance separately.

Be provided with a canaliculate circular hole in this arm of force lid 11, arm of force lid 11 can be in the central part 62 peripheries rotation of 61 of the first ends of lid 5 of the support arm on the support arm 1 and rotating shaft 6, but counter-rotating is then by locked.

The design of this central part 61 comprises the basic principle of two latch mechanisms, the inner space of this support arm lid 5 is provided with one first gear, can stop support arm 1 to rotate with a direction, and be provided with one second gear in the inner space of arm of force lid 11, can stop force arm 2 with direction rotation as hereinbefore, this latch mechanism can in bolt-lock action separately independently before topic down, be designed to separation or be incorporated in the cell cube.

Fig. 2 and Fig. 3 are the embodiment of bolt-lock of the present invention, one surperficial canaliculate latching element 17 is set at the depressed part interior (as shown in Figure 2) of rotating shaft 6, this latching element 17 is lock 18 pushing and pressing that replaced by spring via, and cover canaliculate circular hole intramedullary expansion in 11 in the arm of force, in Fig. 2, inhour forces in the arm of force and covered 11 o'clock, and latch mechanism is locked in rotating shaft 6 and 11 on arm of force lid, so this rotating shaft 6 moves thereupon; And clockwise during the application of force, latch mechanism discharges the state that grips arm of force lid 11, and this arm of force lid 11 can not be subjected to the influence of rotating shaft 6 and freely rotate, and the latch mechanism longitudinal profile of support arm 1 is as shown in Figure 3, and wherein setting-up piece 19 is to be fixing rotating shaft 6 usefulness.

One end of bearing 3 is provided with shrinkage pool 16, this shrinkage pool 16 has the section configuration identical with the first end 61 of rotating shaft 6, the other end of bearing 3 form an inner concavity 15 with accept nut, bolt head gets loose or the action of locking, this bearing 3 is can be fixed on the first end 61, but detachable preferable on placement axle 6, to be set as, can change nut or the bolt of cooperation object with this to be applicable to different size.

Details are as follows in the use of above-mentioned quick-release bolt or nut instrument: the support arm lid 5 interior latch mechanisms of being located at support arm 1 are to extend arm 4 direction in paper shown in Figure 1 with stopper to pivot, therefore with respect to a fixing rotating shaft 6, this support arm 1 can be indicated as clockwise idle running, this bearing 3 is to be arranged on the rotating shaft 6, and it is that inner concavity 15 by the end is sleeved on cap nut or bolt head and is driven and get loose; This extension arm 4 is to be subjected to allowing of latch mechanism and can to dally along rotating shaft 6 clockwise directions, touch any hard surface up to it, and oppositely the time, it then has the effect of maintenance, in being applied to the nut example of vehicle wheel, this hard surface is meant the ground under the vehicle, this moment amplifying device 8 is rotated counterclockwise along rotating shaft 6 with a certain moment then, with driven rotary axle 6, bearing 3 and nut, carriage bolt rotates, if this nut or bolt are closely locked, this moment is promptly concentrated and is made force arm 2, rotating shaft 6, bearing 3 and nut, bolts etc. produce trickle distortion, those elements are as an extremely hard spring action, and rotating shaft 6 is driven usually and rotates, even if nut is not released as yet, and causing rotating shaft 6 variant with the rotation of support arm lid 5, moment amplifying device 8 is applied in a high torque at this; This moment, the operator wanted the nut that gets loose, need not worry during bolt and promote or the maintenance application of force, the application of force flexibly can be covered again in the said structure, in any case, the elasticity of this answer is to hinder the relevant action of support arm lid 5 and rotating shaft 6 with the latch mechanism in the support arm lid 5, make support arm 1 be lockable and be supported in seating surface (as: ground), therefore, after moment stops to put on force arm 2, partly put on nut, the moment of bolt still can be kept, nut gets loose, bolt can the next application of force cover again, rotation friction in the slow cap of moment of remnants is decayed this mechanism, this moment, force arm 2 can turn round, and the latch mechanism of this arm of force lid 11 is also allowed the rotation of this direction, makes it to a position that is more suitable for the application of force.

Fig. 4 shows to compare with traditional approach, put on bolt, the moment figure of nut, this dotted line is with the instrumental purpose of the present invention nut that gets loose, dotted line then is with conventional tool for it, time a defines the process that a moment applies, b stops to force in force arm 2 as the user, and perhaps oppositely spur and think and one grip action again, c is a rest process, d is the instrument of the present invention nut that gets loose, the time of bolt, c then is the time of finishing the work when conventional tool, and when the moment that applies amplification was not enough, this support arm 1 was that bolt-lock is lived to carry out reciprocal action.

Obviously, it is useful that instrument of the present invention combines with some additional functions commonly used, can promote its practical application, according to this, as in the first end 61 of rotating shaft 6 ends, being embedded the bolt-lock ball with spring on the second end 63 is a suitable structure, as the skill of often knowing, it can stop bearing 3 slippage rotating shaft 6 ends in using, other design is adjustable to be applicable to the bolt or the nut of different shape as bearing 3, it also can be installed on the instrument of the present invention a screwdriver termination, decorate with the screw that is used in tool groove head, in this case, must be when putting on rotation screw with usual power, this instrument should not skid off in the groove by screw terminal, the operation in other action, and the powerful moment of similar approach also needs, can produce interests in the present invention, another function that is fit to promptly is that the design feet makes it have the telescope function.

Moreover, this instrument can be modified, so arm of force lid 11 is divided into two partly, it is set at two sides of support arm 1, and each arm of force lid 11 all is provided with the latch mechanism of oneself, and this helps the application of force will make the leg superjacent air space keep straight, can not cause any axial moment to rise along rotating shaft 6, identical, support arm lid 5 can comprise that also two are located at the part lid of force arm 2 two sides, with the effect of agreeing.

Change according to another practicality of previous designs, be that the nut 20 and that high-tensile strength moment arm 9 is comprised establish the tool internal thread is adjusted screw 21 (as shown in Figure 6), it makes the distance of 14 on the pivot that changes rotating shaft 6 and second rotating shaft possibility that becomes, this amount that makes above-mentioned moment amplify can be changed, so set the moment enlarger, except that the bolt that can be used for very packing, but when also can be used for having high torque (HT) to destroy nut or bolt misgivings, limit its turning moment.

Fig. 7 is another specific embodiment of instrument of the present invention, it is other bolt to be arranged for the bolt that supports near being designed to get loose, as the vehicle wheel, on near the extension arm 4 of support arm 1 can be adjusted and be supported in the bolt head, one end of one cylinder 23 stretches in the groove that extends on the arm 4, and can be along this groove slippage, and when the distance between near the bolt that the distance in this rotating shaft 6 to cylinder 23 is fixed with two is consistent, but stretch out this extension arm 4 of this groove clamp by a bolt 22, the other end of cylinder 23 is provided with the less end of a diameter 24, this position can supply a bearing 3 (being similar to the bearing 3 that combines with rotating shaft 6) fit, this bearing 3 is to be sleeved on end 24, so the back wall of bearing 3 is resisted against the wall 25 of cylinder 23 stage casing enlarged portion, therefore this bearing 3 can be rotated by 24 peripheries along the end, by the distance of adjusting 3 of two bearings, is subjected to two bolt heads of chuck near can being provided with, with in getting loose it for the moment, utilize other bolt head supporting.

According to instrument of the present invention, it obviously can change its design, the for example design of its gripping surface, and when tool support during in a soft-surface, the end that this moment, support arm 1, force arm 2 were rather narrow can form squint, make support arm 1 bottom have a large-area seating surface, can solve relevant issues easily.

By above-mentioned as can be known described, the instrument of the spanner of the various fixtures that get loose of the present invention and method have had usability on the industry, novelty, progressive really, have reached goal of the invention of the present invention.

Claims (6)

1, a kind of instrument of spanner of the various fixtures that are used to get loose, mainly comprise: the support arm (1) of a tool rotating shaft (6), at least one force arm (2) that is connected in this rotating shaft (6), and at least one supporting base (3), it is characterized in that: support arm (1) is to be that the axle center is along the opposite direction idle running of force arm (2) to rotating shaft (6) application of force with rotating shaft (6) freely, it is that the axle center articulates along the equidirectional interlock of force arm (2) to rotating shaft (6) application of force that this support arm (1) then can lock with rotating shaft (6), make this support arm (1) when reverse support one supporting base, can keep applying a moment; Force arm (2) is because of being located at the periphery of rotating shaft (6), can rotating along the equidirectional with aforementioned support arm (1) rotation direction, can producing a moment to rotating shaft (6) in a certain pivotal orientation, in then non-moment generation of other direction; Support arm (1) comprises an adjustable cylinder (23), bolt (22), end (24), can be connected a supporting base (3), so that support bolt head or nut near being located in; Releasing structure can be removed the bolt-lock state of aforesaid support arm (1).

2, the instrument of the spanner of the various fixtures that get loose as claimed in claim 1 is characterized in that: aforementioned force arm (2) comprises a moment amplifying device (8), to apply moment in aforementioned rotating shaft (6).

3, the instrument of the spanner of the various fixtures that get loose as claimed in claim 2, it is characterized in that: aforementioned moment amplifying device (8) comprises a low moment arm (10) and a high-tensile strength moment arm (9), should low moment arm (10) be that row are located at support arm (1) side, and can rotate along one first rotating shaft (12), and high-tensile strength moment arm (9) is to be listed as to be located at low moment arm (10) side, can rotate along one second rotating shaft (14), and it is to rotate apart from the distance of rotating shaft (6) greater than this first rotating shaft (12) that second rotating shaft (14) rotates.

4, the instrument of the spanner of the various fixtures that get loose as claimed in claim 3 is characterized in that: the distance between pivot to the second rotating shaft (14) of rotating shaft (6) is variable, to amplify the applied force square.

5, the instrument of the spanner of the various fixtures that get loose as claimed in claim 4 is characterized in that: aforementioned relieving mechanism can change the effective length of support arm (1).

6, a kind of method of spanner of the various fixtures that get loose, it comprises: rotary branching holder (3) is with the various fixtures that get loose, be with respect to a seating surface with a support arm (1), apply a moment in a force arm (2) via a rotating shaft (6) and aforementioned supporting base (3), keep the bolt-lock structure of a part of at least aforementioned moment that applies in a support arm (1), when aforementioned fixture begins to become flexible, remove the aforementioned moment that applies of at least one part.

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