CN106392961A - Movable wrench allowing caliber to be conveniently adjusted - Google Patents

Abstract

The invention discloses a movable wrench allowing the caliber to be conveniently adjusted. The movable wrench allowing the caliber to be conveniently adjusted comprises a wrench body capable of screwing bolts or nuts, and a hand shank connected with the wrench body. The wrench body comprises push rods, a base and a transmission mechanism for adjusting motion of the push rods. The vertical side of the base is provided with threaded holes in one-to-one correspondence with the push rods, and the threaded holes are in threaded connection with the push rods. The transmission mechanism comprises an adjuster arranged on the outer side of the hand shank. The transmission mechanism drives the push rods to rotate through the adjuster, and the push rods rotate forwards through cooperation with the threaded holes. According to the wrench, an adjusting screw rod is used for driving a rotary base plate to rotate, then the push rods are driven to move, the push rods can complete radial motion through restraint of the threaded holes on the push rods, the push rods rotate forwards along the threaded holes, a self-locking effect is achieved after a target is clamped, and slipping is not liable to occur; and large clamping force and screwing supporting force can be provided, so that damage, caused by excessively large screwing force, to a tool is reduced.

Description

It is easy to the monkey wrench of bore regulation

Technical field

The present invention relates to spanner field, more particularly, to a kind of monkey wrench being easy to bore regulation.

Background technology

Spanner is a kind of conventional installation and extracting tool, twists bolt, screw, nut and other spiral shells using lever principle Line tightly holds bolt or the opening of nut or the hand tools of trepanning firmware；Spanner is generally formed with clamping in the one or both ends of shank The opening of bolt or nut or set hole, during use, threadingly direction of rotation applies external force in shank, just can twist bolt or nut. Spanner is generally divided into solid wrench and adjustable wrench again, and solid wrench is formed with the opening of fixed dimension for one or both ends, in order to twist one The nut being sized or bolt；And adjustable wrench can be adjusted for A/F in the range of certain size, different rule can be twisted The bolt of lattice or nut.

It would be desirable to the bolt to different size specification or nut in the middle of our lives at ordinary times or in industrial design Installed and dismantled, if using solid wrench, needing to have the spanner of different caliber size, carrying heavy, using inconvenience, and The adjustable wrench that generally we use is side regular jaw, side moving jaw, so that moving jaw is moved by screw-driven, from And form the jaw of different openings, but when this adjustable wrench clamps bolt or nut by the left and right sides, toward certain direction During rotation, the force localization of pressure, on the corner of bolt or nut, easily causes to the corner of bolt or nut to damage, than As the edging phenomenon of outer-hexagonal round end etc. occurs.

Due to current polygon bolt or nut common be positive hexagonal, so when for this phenomenon, Ren Menshe The target of meter is substantially focused on hex bolts or hex nut, below taking hex bolts as a example；As number of patent application A kind of 201210421085.1 combination wrench, controls dop by the goat's horn screw rod that six can be adjusted, makes on dop V-type groove is stuck on six angles of positive hex bolts, not only increases stress point, and by main stress point from easy damaged Corner on transfer to not on the face of easy damaged, it is to avoid the edging phenomenon of outer-hexagonal round end etc., but this design is in clamping During need six goat's horn screw rods are adjusted respectively, wayward and time-consuming effort.

On this basis, the speeder wrench of the adjustable caliber size of number of patent application 201510746558.9, by right The control of upper and lower two pressing plates, makes two pressing plates that medial angle is 120 ° clamp two angles of hex bolts respectively, forms four Individual containment surfaces, are difficult to skid, and in the case, when spanner starts to twist hex bolts, there are four main stress points, and mainly The position of stress point is not on the face of easy damaged；A kind of spanner with voltage test pencil of number of patent application 201510620355.5, passes through V-type opening in front of slide block is clamped, and is controlled by regulating bolt and slides, thus clamping various sizes of hex bolts；But Above with respect to the technical scheme adjusting size wrench, the mechanism component contacting with the hex bolts twisted, when adjusting bore The level that is is slided, and dynamics that horizontal sliding type either clamps, support force when still twisting are all less, in some situations Lower it may appear that twisting motionless phenomenon, if using larger chucking power or when twisting power, but easy occur skidding, or even damage Bad corresponding transmission mechanism.

Content of the invention

The present invention provides a kind of monkey wrench being easy to bore regulation for solving above-mentioned technical problem, is threaded connection, Push rod is rotationally advancing, after clamping there is self-locking effect, be difficult to skid, and be provided that larger clamping dynamics to prop up with twisting Support force, reduces the tool damage causing because the power of twisting is excessive.

For achieving the above object, reach the effect above, the present invention is achieved through the following technical solutions：

A kind of monkey wrench being easy to bore regulation, is connected with wrench body including the wrench body that can twist bolt or nut Handle, wrench body include push rod, pedestal, adjust pushrod movement transmission mechanism；Have in the vertical side of pedestal and push away The one-to-one screw of bar, screw is threadeded with push rod, and transmission mechanism includes being arranged on the adjuster outside handle, by adjusting Section device, makes transmission mechanism drive push rod rotation, push rod is rotationally advancing under the cooperation of screw.

As a kind of preferred embodiment of transmission mechanism, transmission mechanism includes the swivel base in pedestal, and adjuster leads to Overregulate pole and be connected with adjusting screw rod, adjusting screw rod is in transmission connection with the vertical side of swivel base, swivel base horizontal Side is in transmission connection with push rod, makes adjuster adjust swivel base rotation, swivel base drives push rod rotation.

As a kind of preferred version making adjuster not occurred level movement, on described regulation pole, it is provided with solid Determine snap ring, this fixation snap ring is fixedly connected with adjusting pole, the solid section in handle has and accommodates the hollow of fixing snap ring Groove, this groove secures the position of fixing snap ring so as to can only rotate with the rotation adjusting pole, but not occurred level Mobile, so that the adjuster being fixedly connected with regulation pole also not occurred level movement.

A kind of preferred version being in transmission connection as adjusting screw rod and swivel base, adjusting screw rod includes adjusting screw thread, rotation Turn chassis include on vertical side with adjust that screw thread engage rotate helical teeth so that adjusting screw rod vertical with swivel base one Side forms Worm Wheel System.

A kind of preferred version being in transmission connection as swivel base and push rod, swivel base includes the rotation in horizontal side Straight-tooth, the surface of push rod formed in the vertical with rotate the radial direction gear teeth that straight-tooth engages so that swivel base horizontal side with Push rod forms column gear transmission.

As the threaded a kind of preferred version of push rod and screw, the surface of push rod forms the outside spiral shell in footpath in the horizontal Line, screw is provided with the radial direction internal thread being engaged with radial direction external screw thread so that push rod and screw form axial screw transmission.

As a kind of preferred embodiment, swivel base includes snap ring, the limit making swivel base be slidably connected with pedestal madial wall The limited block of swivel base rotation processed, limited block is arranged on the centre of rotation helical teeth, and limited block is thin cylindrical side, and it arrives circle The distance of the heart is equal with the distance taking turns tooth tip to the center of circle on rotation helical teeth, when adjusting screw rod touches limited block, adjusts spiral shell Bar stop motion, so that swivel base stops the rotation, the benefit of this limited block is that anti-throw-out lever rotates screw.

For the ease of the installation of push rod, the fluting twisted with instrument cooperation, such as one word are provided with the afterbody of push rod Grooved, Phillips-type, plum blossom grooved, hexagonal grooved etc.；Meanwhile, allow push rod point to the same center of circle it is ensured that with bolt or nut Contact area.

As a kind of preferred embodiment, adjuster is arranged on the afterbody of handle, and shape is corresponding with handle shape, not In the case of use, adjuster and handle are integrally formed, and make monkey wrench more attractive in appearance.

Compared with prior art, the present invention has the advantages that：

A kind of monkey wrench being easy to bore regulation, by the adjuster outside handle, makes adjusting screw rod that chassis rotation is rotated Turning, thus driving push rod to move, by the constraint to push rod for the screw of pedestal side, so that push rod completes to move radially, pushing away Bar is rotationally advancing along screw, and after rotation is to target location, screw thread has self-lock ability, and being difficult to skid loosens, push rod Because of threaded formed contact area so that this kind of drive is provided that and larger twists support force and screw between；With When, the mode of Multi-stage transmission and threaded formed contact area are so that this kind of drive is provided that larger clamping Dynamics；Consequently facilitating user bolt or nut are carried out with stronger dynamics twist, reduce cause because the power of twisting is excessive instrument damage Bad.

Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after, The specific embodiment of the present invention is shown in detail in by following examples and its accompanying drawing.

Brief description

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the overall structure diagram of the monkey wrench being easy to bore regulation according to the present invention；

Fig. 2 is that schematic diagram is disassembled in the inside of the monkey wrench being easy to bore regulation according to the present invention；

Fig. 3 is the enlarged diagram of a-quadrant in Fig. 2；

Fig. 4 is the structural representation of each motion according to the present invention；

Fig. 5 is structural representation under different perspective view for the Fig. 4.

Wherein, above-mentioned accompanying drawing includes drawings described below mark：Wrench body 1, handle 2, adjuster 3, swivel base 4, push rod 5th, pedestal 6, adjusting screw rod 31, adjust pole 32, fixing snap ring 33, adjust screw thread 311, rotation helical teeth 41, rotation straight-tooth 42, rotation Turn snap ring 43, limited block 44, the radial direction gear teeth 51, radial direction external screw thread 52, fluting 53, screw 61, radial direction internal thread 62, base plate 63rd, opening 64.

Specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, to describe the present invention in detail：

As shown in figure 1, a kind of monkey wrench being easy to bore regulation, presently preferred embodiments of the present invention is in the market Common hex bolts or nut design, including wrench body 1, handle 2, adjuster 3, six roots of sensation push rod 5, pedestal 6, wherein, Adjuster 3 is arranged on the afterbody of handle 2, and shape and handle 2 shape are cuboid, and handle 2 is connected with pedestal 6, push rod 5 and Pedestal 6 connects, and the angle between this push rod 5 is 60 °, is evenly distributed on pedestal 6 for annular.

Fig. 2 is to have turned over by the spanner in Fig. 1, then removes the base plate 63 of pedestal 6, defines in pedestal 6 Only retain the entity part of screw 61 and the dead slot part placing swivel base 4, entity part provides relatively in clamping or when twisting Big support strength, wherein swivel base 4 include snap ring 43, and this snap ring 43 makes swivel base 4 slide even with pedestal 6 madial wall Connect.

In conjunction with Fig. 3, the enlarged drawing of a-quadrant in Fig. 2 is understood, has six screws 61, this spiral shell in the vertical side of pedestal 6 Being threadeded with push rod 5 in hole 61, and corresponds；In pedestal 6, the bottom of entity part is provided with and connects for push rod 5 and swivel base 4 Tactile opening 64；Swivel base 4 is provided with a limited block 44, and this limited block 44 is arranged on the centre of rotation helical teeth 41, limited block 44 is thin cylindrical side, and it is equal with the distance taking turns tooth tip to the center of circle on rotation helical teeth 41 to the distance in the center of circle, works as regulation When screw rod 31 touches limited block 44, adjusting screw rod 31 stop motion, so that swivel base 4 stops the rotation, this limited block 44 Serve the effect that anti-throw-out lever 5 rotates screw 61, with regard to the position of this limited block 44, can be in conjunction with Fig. 4.

Understand in conjunction with Fig. 2, Fig. 3, Fig. 4, adjuster 3 is passed through regulation pole 32 and is connected with adjusting screw rod 31, wherein adjusts spiral shell Bar 31 side vertical with swivel base 4 is connected, and fixing snap ring 33 is fixedly connected with adjusting pole 32, is stuck in real in handle 2 The groove that center portion is divided, occurred level does not move to make adjuster 3.

In conjunction with shown in Fig. 2 and Fig. 5, on base plate 63, under snap ring 43, it is provided with one and slides even with snap ring 43 The filler ring connecing, withstands snap ring 43 so that Area of bearing when swivel base 4 rotates is the contact surface between snap ring 43 and filler ring Long-pending.

In Figure 5, the fluting 53 twisted with instrument cooperation is provided with the afterbody of push rod 5, this preferred embodiment is as schemed Show Phillips-type, by this fluting 53 so that push rod 5 easier for installation and quick.

Meanwhile, with regard to the implementation of each transmission mechanism, as shown in Figure 3, screw 61 is provided with radial direction internal thread 62, As shown in Figure 4, adjusting screw rod 31 includes adjusting screw thread 311, swivel base 4 include rotation helical teeth 41 on vertical side, In the rotation straight-tooth 42 of horizontal side, as shown in Figure 5, the surface of push rod 5 forms the radial direction gear teeth 51, in the horizontal in the vertical Form radial direction external screw thread 52.

Realize the mode of transmission by above-mentioned transmission mechanism, as shown in figure 4, the regulation screw thread 311 on adjusting screw rod 31 and rotation Rotation helical teeth 41 engagement turning on the vertical side in chassis 4 connects, and makes adjusting screw rod 31 side vertical with swivel base 4 form snail Worm and gear is driven；As shown in figure 5, the rotation straight-tooth 42 of horizontal side and the radial direction gear teeth 51 on push rod 5 surface are nibbled on swivel base 4 Close and connect, make the horizontal side of swivel base 4 and push rod 5 form column gear transmission；As shown in figure 3, the radial direction on push rod 5 surface External screw thread 52 is threadeded with the radial direction internal thread 62 on screw 61 so that push rod 5 and screw 61 form axial screw transmission, pushes away When bar 5 is threadeded with screw 61, both contacts area are larger, using the teaching of the invention it is possible to provide larger twists support force, meanwhile, many cascades Dynamic mode is so that the chucking power finally acting on bolt or nut is also relatively large.

In sum, taking twist positive hex bolts as a example, the course of work of the present invention is as follows：

（1）, pedestal 6 be aligned need the positive hex bolts that turns；

（2）, assume that the clamp port that formed of current six roots of sensation push rod 5 is less than the size of positive hex bolts, that is, need larger folder Hold bore, then rotate counterclockwise adjuster 3, by adjusting pole 32, drive adjusting screw rod 31 to rotate counterclockwise, by adjusting spiral shell Line 311 and the Worm Wheel System of rotation helical teeth 41, are rotated chassis 4 counterclockwise movement；

（3）, the rotation straight-tooth 42 and the column gear transmission of the radial direction gear teeth 51 that are located on swivel base 4, drive push rod 5 counterclockwise Rotation；

（4）, due to radial direction external screw thread 52 be dextrorotation screw thread with radial direction internal thread 62, by the radial direction external screw thread 52 on push rod 5 surface With the axial screw transmission of radial direction internal thread 62, when push rod 5 rotate counterclockwise, push rod 5 moves radially outward along screw 61, I.e. six roots of sensation push rod moves radially outward simultaneously, forms larger clamping bore；

（5）, clamp bore be more than positive hex bolts size when, stop operating adjuster 3, and pedestal 6 is enclosed within positive hexagonal On bolt, six roots of sensation push rod 5 is made to correspond the center in positive six faces of hex bolts；

（6）, now, rotate clockwise adjuster 3, make push rod 5 displaced radially inward, until the face with positive hex bolts contacts, And rotate clockwise adjuster 3 further, make push rod 5 and positive hex bolts be in clamped condition；

（7）, rotate positive hex bolts by handle 2, after taking out positive hex bolts, rotate counterclockwise adjuster 3, make push rod 5 to Outer radial moves, after unclamping positive hex bolts.

（8）If, step（2）In, the size of the clamping positive hex bolts of relative aperture that six roots of sensation push rod 5 is formed is big, then directly Tap into row（5）-（7）Step.

In the above course of work, for the quantity that the there is side multiple being 6 and same for the device that can loosen It is suitable for, such as, positive hex nut, positive 12 corner bolts etc., and be not limited in positive hex bolts to treat.

The second embodiment of the present invention, on the basis of preferred embodiment, by radial direction external screw thread 52 and radial direction internal thread 62 It is transformed to derotation screw thread, then whole work process is as follows：

（1）, pedestal 6 be aligned need the positive hex bolts that turns；

（2）, assume that the clamp port that formed of current six roots of sensation push rod 5 is less than the size of positive hex bolts, that is, need larger folder Hold bore, rotate clockwise adjuster 3, by adjusting pole 32, drive adjusting screw rod 31 to rotate clockwise, by adjusting screw thread 311 with rotation helical teeth 41 Worm Wheel System, chassis 4 clockwise movement is rotated；

（3）, the rotation straight-tooth 42 and the column gear transmission of the radial direction gear teeth 51 that are located on swivel base 4, drive push rod 5 clockwise Rotation；

（4）, due to radial direction external screw thread 52 be derotation screw thread with radial direction internal thread 62, by the radial direction external screw thread 52 on push rod 5 surface With the axial screw transmission of radial direction internal thread 62, when push rod 5 turns clockwise, push rod 5 moves radially outward along screw 61, I.e. six roots of sensation push rod moves radially outward simultaneously, forms larger clamping bore；

（5）, clamp bore be more than positive hex bolts size when, stop operating adjuster 3, and pedestal 6 is enclosed within positive hexagonal On bolt, six roots of sensation push rod 5 is made to correspond the center in positive six faces of hex bolts；

（6）, now, rotate counterclockwise adjuster 3, make push rod 5 displaced radially inward, until the face with positive hex bolts contacts, And the adjusting screw rod 31 that rotates backward further, make push rod 5 and positive hex bolts be in clamped condition；

（7）, rotate positive hex bolts by handle 2, after taking out positive hex bolts, rotate clockwise adjuster 3, make push rod 5 to Outer radial moves, after unclamping positive hex bolts.

（8）If, step（2）In, the size of the clamping positive hex bolts of relative aperture that six roots of sensation push rod 5 is formed is big, then directly Tap into row（5）—（7）Step.

The third embodiment of the present invention, on the basis of preferred embodiment, by adjuster 3 in the position of handle 2, from handle 2 afterbody becomes in the other positions of handle 2 lateral wall, that is, in both sides up and down or the left and right sides of handle 2.

The fourth embodiment of the present invention, on the basis of preferred embodiment, the grooved of fluting 53 is changed into flat recess type.

In the fifth embodiment of the present invention, on the basis of preferred embodiment, by the quantity of push rod 5 and screw 61 from six It is revised as three so as to the quantity that can be suitably used for side is 3 multiple and the device that can loosen.

In the sixth embodiment of the present invention, on the basis of preferred embodiment, by the quantity of push rod 5 and screw 61 from six It is revised as four so as to the quantity that can be suitably used for side is 4 multiple and the device that can loosen.

In the seventh embodiment of the present invention, on the basis of preferred embodiment, by the quantity of push rod 5 and screw 61 from six It is revised as five so as to the quantity that can be suitably used for side is 5 multiple and the device that can loosen.

Based on the basis of preferred embodiment, the five, the six, seven embodiments it is known that, when by the quantity of push rod 5 and screw 61 It is revised as more than six quantity it should be considered as equivalent variations, belong to the Equivalent embodiments of the present invention；Based on second and third, four base On plinth, simply preferred embodiment carried out such as second and third, replace four embodiments or modification is simply combined, Should also be as being considered as equivalent variations, such as on the basis of preferred embodiment, radial direction external screw thread 52 is converted with radial direction internal thread 62 For derotation screw thread, adjuster 3 is become the other positions of handle 2 lateral wall in the position of handle 2 from the afterbody of handle 2, this The 8th embodiment that sample is formed, is simply simply merged modification it should be considered as equivalent variations to second and third embodiment, is belonged to Equivalent embodiments in the present invention；Certainly, the change based on above-mentioned two situations, such as modification quantity and change hand of spiral knot Unify the new embodiment being formed it should also be considered as equivalent variations, belong to the Equivalent embodiments of the present invention.

Meanwhile, the technical scheme that should not be limited by preferred embodiment, also includes push rod 5 with screw 61 in the position of pedestal 6 As long as putting unequal with angle and uneven distribution, limited block 44 to the center of circle distance gear teeth bottom land on rotation helical teeth 41 can be more than To the center of circle distance can, adjusting screw rod 31 and swivel base 4 scheme, swivel base 4 and the push rod 5 that are in transmission connection be in transmission connection Scheme, push rod 5 and the threaded scheme of screw 61 etc..

The above, only presently preferred embodiments of the present invention, not the present invention is made with any pro forma restriction；All The those of ordinary skill of the industry all can shown in by specification accompanying drawing and the above and swimmingly implement the present invention；But, all Those skilled in the art, in the range of without departing from technical solution of the present invention, are done using disclosed above technology contents The a little change going out, the equivalent variations modified and develop, are the Equivalent embodiments of the present invention；Meanwhile, all according to the present invention The change of any equivalent variations, modification and differentiation that substantial technological is made to above example etc., all still fall within the skill of the present invention Within the protection domain of art scheme.

Claims (9)

1. a kind of monkey wrench being easy to bore regulation, including the wrench body that can twist bolt or nut（1）, and wrench body （1）The handle connecting（2）, described wrench body（1）Including push rod（5）, pedestal（6）, adjust push rod（5）The driver of motion Structure；It is characterized in that：Described pedestal（6）Vertical side have and push rod（5）One-to-one screw（61）, described screw （61）With push rod（5）Threaded, described transmission mechanism includes being arranged on handle（2）The adjuster in outside（3）.

2. according to claim 1 be easy to bore regulation monkey wrench it is characterised in that：Described transmission mechanism includes position In pedestal（6）Interior swivel base（4）, described adjuster（3）By adjusting pole（32）It is connected with adjusting screw rod（31）, described Adjusting screw rod（31）With swivel base（4）Vertical side connect, described swivel base（4）Horizontal side and push rod（5）Transmission Connect, thus adjusting push rod（5）Rotation.

3. according to claim 2 be easy to bore regulation monkey wrench it is characterised in that：In described regulation pole （32）On, it is provided with and make adjuster（3）The not fixing snap ring of occurred level movement（33）.

4. according to claim 2 be easy to bore regulation monkey wrench it is characterised in that：Described adjusting screw rod（31）Bag Include regulation screw thread（311）, described swivel base（4）Including on vertical side with adjust screw thread（311）The rotation helical teeth of engagement （41）, described adjusting screw rod（31）With swivel base（4）Vertical side form Worm Wheel System.

5. according to claim 2 be easy to bore regulation monkey wrench it is characterised in that：Described swivel base（4）Bag Include the rotation straight-tooth in horizontal side（42）, described push rod（5）Surface formed in the vertical and rotate straight-tooth（42）Engagement The radial direction gear teeth（51）, described swivel base（4）Horizontal side and push rod（5）Form column gear transmission.

6. according to claim 1 be easy to bore regulation monkey wrench it is characterised in that：Described push rod（5）Surface Form radial direction external screw thread in the horizontal（52）, described screw（61）On be provided with and radial direction external screw thread（52）The footpath of engagement is inside Screw thread（62）, described push rod（5）With screw（61）Form axial screw transmission.

7. according to claim 2 be easy to bore regulation monkey wrench it is characterised in that：Described swivel base（4） Including making swivel base（4）With pedestal（6）The snap ring that madial wall is slidably connected（43）, limit swivel base（4）Rotate is spacing Block（44）.

8. according to claim 1 be easy to bore regulation monkey wrench it is characterised in that：Described push rod（5）Afterbody On be provided with and the instrument fluting twisted of cooperation（53）, and push rod（5）Point to the same center of circle.

9. according to claim 1 be easy to bore regulation monkey wrench it is characterised in that：Described adjuster（3）Setting In handle（2）Afterbody, and shape and handle（2）Shape is corresponding.