CN106392964B

CN106392964B - Bore adjustable spanner

Info

Publication number: CN106392964B
Application number: CN201610994324.0A
Authority: CN
Inventors: 王玉斌
Original assignee: Yancheng City Xinao Precision Forging Co Ltd
Current assignee: Yancheng Xin'ao Precision Forging Co ltd
Priority date: 2016-11-11
Filing date: 2016-11-11
Publication date: 2018-05-08
Anticipated expiration: 2036-11-11
Also published as: CN106392964A

Abstract

The invention discloses a kind of bore adjustable spanner, including the handle that can be twisted the wrench body of bolt or nut, be connected with wrench body, wrench body include push rod, pedestal, the transmission mechanism for adjusting pushrod movement；It is provided with the vertical side of pedestal and is threadedly coupled with the one-to-one screw hole of push rod, screw hole with push rod, transmission mechanism drives push rod rotation, and push rod is rotationally advancing under the cooperation of screw hole；The present invention drives swivel base to rotate by adjusting screw rod, so as to drive push rod to move, pass through constraint of the screw hole to push rod, so that push rod is completed to move radially, push rod is rotationally advancing along screw hole, after clamping with self-locking effect, is not easy to skid, and larger clamping force can be provided and twist support force, reduce because twist power it is excessive caused by tool damage.

Description

Bore adjustable spanner

Technical field

The present invention relates to spanner field, more particularly to a kind of bore adjustable spanner.

Background technology

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

Among our lives usually or in industrial design, it would be desirable to the bolt or nut of different dimensions To be installed and dismantled, if using solid wrench, need to have the spanner of different caliber sizes, carrying is heavy, inconvenient for use, and The adjustable wrench that usually we use is side regular jaw, and side moving jaw, moves moving jaw by screw-driven, from And the jaw of different openings is formed, but when the adjustable wrench clamps bolt or nut by the left and right sides, toward some direction During rotation, the force localization of pressure easily causes to damage on the corner of bolt or nut to the corner of bolt or nut, than Such as there is the edging phenomenon of outer-hexagonal round end.

Due to current polygon bolt or nut it is 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 by taking hex bolts as an example；Such as number of patent application A kind of 201210421085.1 combination wrench, controls clamp by six goat's horn that can be adjusted screw rods, makes on clamp 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 be transferred to the edging phenomenon on the face of easy damaged, not avoiding outer-hexagonal round end etc., but the design is in clamping During need that six goat's horn screw rods are adjusted respectively, be difficult to control 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, two pressing plates for making medial angle be 120 ° clamp two angles of hex bolts respectively, form four A containment surfaces, are not easy to skid, 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 sliding block is clamped, and is controlled and slided by adjusting bolt, so as to clamp various sizes of hex bolts；But Above with respect to the technical solution for adjusting size wrench, the mechanism component contacted with the hex bolts twisted, when adjusting bore It is horizontal slip, dynamics that horizontal sliding type either clamps, support force when still twisting are all smaller, in some situations Under, it may appear that motionless phenomenon is twisted, if using larger chucking power or when twisting power, and easily have skidded, or even damage Bad corresponding transmission mechanism.

The content of the invention

The present invention provides a kind of bore adjustable spanner to solve above-mentioned technical problem, is connected through a screw thread so that push rod revolves Turn to advance, after clamping with self-locking effect, be not easy to skid, and larger clamping force can be provided and twist support force, reduce Because twist power it is excessive caused by tool damage.

To achieve the above object, the effect above is reached, the present invention is achieved through the following technical solutions：

A kind of bore adjustable spanner, including the handle that the wrench body of bolt or nut can be twisted, be connected with wrench body, Wrench body includes push rod, pedestal, the transmission mechanism for adjusting pushrod movement；It is provided with the vertical side of pedestal a pair of with push rod one The screw hole answered, screw hole are threadedly coupled with push rod, and transmission mechanism drives push rod rotation, and push rod is rotationally advancing under the cooperation of screw hole.

As a kind of preferred embodiment of transmission mechanism, transmission mechanism includes adjusting screw rod, the swivel base in pedestal, Adjusting screw rod side vertical with swivel base is sequentially connected, and the horizontal side of swivel base is sequentially connected with push rod, makes adjusting spiral shell Bar adjusts swivel base rotation, and swivel base drives push rod rotation.

Spanner is adjusted for the ease of user, so as to adjust faster to required caliber size, is set on the outside of pedestal There is the opening passed through for adjusting screw rod, which is arranged on the junction of handle and wrench body, so that user is by adjusting spiral shell Bar is adjusted.

A kind of preferred solution being sequentially connected as adjusting screw rod and swivel base, adjusting screw rod include adjusting screw thread, rotation Turn chassis and be included in the rotation helical teeth engaged on vertical side with adjusting screw thread so that adjusting screw rod vertical with swivel base one Side forms Worm Wheel System.

A kind of preferred solution being sequentially connected as swivel base and push rod, swivel base are included in the rotation of horizontal side Straight-tooth, the surface of push rod form radial direction gear teeth engage with rotation straight-tooth in the vertical so that the horizontal side of swivel base and Push rod forms column gear transmission.

A kind of preferred solution being threadedly coupled as push rod and screw hole, the surface of push rod forms the outside spiral shell in footpath in the horizontal Line, is provided with the radial direction internal thread engaged with radial direction external screw thread on screw hole so that push rod forms axial screw transmission with screw hole.

It is affiliated to for the ease of picking and placeing, hook hole is provided with handle.

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

Spanner is adjusted for the ease of user, is provided with the afterbody of push rod and coordinates the fluting twisted, such as one with instrument Word groove profile, Phillips-type, plum blossom groove profile, hexagonal groove profile etc.；Meanwhile allow push rod to be directed toward the same center of circle, ensure and bolt or spiral shell Female contact area.

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

A kind of bore adjustable spanner, drives swivel base to rotate, so as to drive push rod to move, passes through base by adjusting screw rod Constraint of the screw hole of seat side to push rod, so that push rod is completed to move radially, push rod is rotationally advancing along screw hole, waits to revolve After going to target location, screw thread has self-lock ability, and being not easy to skid loosens, because being threadedly coupled what is formed between push rod and screw hole Contact area so that the kind of drive, which can provide, larger twists support force；Meanwhile mode and the threaded connection of Multi-stage transmission The contact area formed so that the kind of drive can provide larger clamping force；Consequently facilitating user is to bolt or nut Carry out it is with stronger dynamics twist, reduce because twist power it is excessive caused by tool damage.

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 attached drawing describe in detail as after, The embodiment of the present invention is shown in detail by following embodiments and its attached drawing.

Brief description of the drawings

Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the overall structure diagram of bore adjustable spanner of the present invention；

Fig. 2 is that schematic diagram is disassembled in the inside of bore adjustable spanner of the present invention；

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

Fig. 4 is the structure diagram of each motion of the present invention；

Fig. 5 is structure diagrams of the Fig. 4 under different perspective views.

Wherein, above-mentioned attached drawing is marked including drawings described below：Wrench body 1, handle 2, adjusting screw rod 3, swivel base 4, push away Bar 5, pedestal 6, hook hole 21, adjusting screw thread 31, rotation helical teeth 41, rotation straight-tooth 42, snap ring 43, limited block 44, the radial direction gear teeth 51st, radial direction external screw thread 52, fluting 53, screw hole 61, radial direction internal thread 62.

Embodiment

It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail：

As shown in Figure 1, a kind of bore adjustable spanner, presently preferred embodiments of the present invention is for most common currently on the market What hex bolts or nut designed, including wrench body 1, handle 2, adjusting screw rod 3, six roots of sensation push rod 5, pedestal 6, wherein, in hand Hook hole 21 is provided with handle 2, which is hung up easy to user, and handle 2 is connected with pedestal 6, push rod 5 and pedestal 6 Connect, the angle between the push rod 5 is 60 °, is evenly distributed on for annular on pedestal 6.

Fig. 2 is to have turned over by the spanner in Fig. 1, then removes the bottom shell of pedestal 6, which is with shown in Fig. 1 On the basis of, formd in pedestal 6 and only retain the entity part of screw hole 61 and be placed with the empty slot part of swivel base 4, entity Part provides larger support strength when clamping or twisting, and the bottom of entity part is equipped with to be contacted for push rod 5 and swivel base 4 Opening；Opening is equipped with the outside of pedestal 6, which is arranged on the junction of handle 2 and pedestal 6, and the opening is for adjusting spiral shell Bar 3 passes through, i.e., adjusting screw rod 3 is arranged on the junction of handle 2 and pedestal 6.

With reference to Fig. 3, the enlarged drawing of a-quadrant in Fig. 2 is understood, six screw holes 61, the spiral shell are provided with the vertical side of pedestal 6 Hole 61 is threadedly coupled with push rod 5, and is corresponded；Wherein swivel base 4 includes snap ring 43, the snap ring 43 make swivel base 4 with 6 madial wall of pedestal is slidably connected, and in the bottom shell of pedestal 6, under snap ring 43, slides and connects with snap ring 43 equipped with one The filler ring connect, withstands snap ring 43 so that contact surface of the bearing area between snap ring 43 and filler ring when swivel base 4 rotates Product.

In Fig. 4, swivel base 4 is provided with a limited block 44, which is arranged on the centre of rotation helical teeth 41, limit Position block 44 is thin cylindrical side, its distance to the center of circle is equal with the distance that tooth tip to the center of circle is taken turns on rotation helical teeth 41, when When adjusting screw rod 3 touches limited block 44,3 stop motion of adjusting screw rod, so that swivel base 4 stops rotating, the limited block 44 effect for playing anti-throw-out lever 5 and rotating out of screw hole 61.

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

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

The mode of transmission is realized by above-mentioned transmission mechanism, as shown in figure 4, the adjusting screw thread 31 on adjusting screw rod 3 and rotation The engagement connection of rotation helical teeth 41 on 4 vertical side of chassis, makes the side vertical with swivel base 4 of adjusting screw rod 3 form worm gear Worm-drive；As shown in figure 5, the rotation straight-tooth 42 of horizontal side is engaged with the radial direction gear teeth 51 on 5 surface of push rod on swivel base 4 Connection, the horizontal side and push rod 5 for making swivel base 4 form column gear transmission；As shown in figure 3, the footpath on 5 surface of push rod is outside Screw thread 52 is threadedly coupled with the radial direction internal thread 62 on screw hole 61 so that push rod 5 forms axial screw transmission, push rod with screw hole 61 5 with screw hole 61 when being threadedly coupled, both contacts area are larger, using the teaching of the invention it is possible to provide and it is larger to twist support force, meanwhile, multistage interlocks Mode so that the chucking power finally acted on bolt or nut is also relatively large.

In conclusion exemplified by twisting positive hex bolts, the course of work of the invention is as follows：

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

（2）, assume that the clamp port that current six roots of sensation push rod 5 is formed is smaller than the size of positive hex bolts, that is, need larger Clamping bore, then rotate backward adjusting screw rod 3, pass through adjust screw thread 31 with rotate helical teeth 41 Worm Wheel System, drive 4 counterclockwise movement of swivel base；

（3）, rotation straight-tooth 42 and the radial direction gear teeth 51 on swivel base 4 column gear transmission, drive push rod 5 inverse Hour hands rotate；

（4）, since radial direction external screw thread 52 and radial direction internal thread 62 are dextrorotation screw thread, pass through the outside spiral shell in footpath on 5 surface of push rod The axial screw of line 52 and radial direction internal thread 62 is driven, and when push rod 5 rotates counterclockwise, push rod 5 is along 61 outward radial of screw hole Mobile, i.e. six roots of sensation push rod moves radially outward at the same time, forms larger clamping bore；

（5）, when clamping bore and being more than the size of positive hex bolts, stopping rotates backward adjusting screw rod 3, and by pedestal 6 It is sleeved on positive hex bolts, six roots of sensation push rod 5 is corresponded the center in positive six faces of hex bolts；

（6）, at this time, forward rotate adjusting screw rod 3, make push rod 5 displaced radially inward, connect until with the face of positive hex bolts Touch, and rotate adjusting screw rod 3 further along, push rod 5 is in clamped condition with positive hex bolts；

（7）, positive hex bolts rotated by handle 2, after taking out positive hex bolts, rotate backward adjusting screw rod 3, makes push rod 6 move radially outward, after unclamping positive hex bolts.

（8）If, step（2）In, the size for 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.

It is same for there are the multiple that the quantity on side is 6 and the device that can loosen in the course of work more than Be applicable in, such as, positive hex nut, positive 12 corner bolt 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 Derotation screw thread is transformed to, 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 current six roots of sensation push rod 5 is formed is smaller than the size of positive hex bolts, that is, need larger Clamping bore, then forward rotate adjusting screw rod 3, pass through adjust screw thread 31 with rotate helical teeth 41 Worm Wheel System, drive 4 clockwise movement of swivel base；

（3）, rotation straight-tooth 42 and the radial direction gear teeth 51 on swivel base 4 column gear transmission, drive push rod 5 suitable Hour hands rotate；

（4）, since radial direction external screw thread 52 and radial direction internal thread 62 are derotation screw thread, pass through the outside spiral shell in footpath on 5 surface of push rod The axial screw of line 52 and radial direction internal thread 62 is driven, and when push rod 5 rotates clockwise, push rod 5 is along 61 outward radial of screw hole Mobile, i.e. six roots of sensation push rod moves radially outward at the same time, forms larger clamping bore；

（5）, when clamping bore and being more than the size of positive hex bolts, stop rotating adjusting screw rod 3 forward, and by pedestal 6 It is sleeved on positive hex bolts, six roots of sensation push rod 5 is corresponded the center in positive six faces of hex bolts；

（6）, at this time, rotate backward adjusting screw rod 3, makes push rod 5 displaced radially inward, is connect until with the face of positive hex bolts Touch, and the adjusting screw rod 3 that further rotates backward, push rod 5 is in clamped condition with positive hex bolts；

（7）, positive hex bolts rotated by handle 2, after taking out positive hex bolts, rotate adjusting screw rod 3 forward, make push rod 6 move radially outward, after unclamping positive hex bolts.

（8）If, step（2）In, the size for 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, the aperture position that will pass through for adjusting screw rod 3 from Handle 2 and the junction of pedestal 6 become in the other positions of 6 lateral wall of pedestal, i.e., handle 2 is directly connected to pedestal 6, handle 2 It is not connected with adjusting screw rod 3.

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

In the fifth embodiment of the present invention, on the basis of preferred embodiment, by the quantity of push rod 5 and screw hole 61 from six Three are revised as, the multiple that the quantity that can be suitable for side is 3 and the device that can be loosened.

In the sixth embodiment of the present invention, on the basis of preferred embodiment, by the quantity of push rod 5 and screw hole 61 from six Four are revised as, the multiple that the quantity that can be suitable for side is 4 and the device that can be loosened.

In the seventh embodiment of the present invention, on the basis of preferred embodiment, by the quantity of push rod 5 and screw hole 61 from six Five are revised as, the multiple that the quantity that can be suitable for side is 5 and the device that can be loosened.

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 hole 61 More than six quantity is revised as, equivalent variations should be considered as, belongs to the equivalent embodiment of the present invention；Based on second and third, four base On plinth, simply preferred embodiment is carried out to replace such as second and third, four embodiments or modification is simply combined, It should also be as being considered as equivalent variations, for example on the basis of preferred embodiment, radial direction external screw thread 52 and radial direction internal thread 62 converted For derotation screw thread, for the aperture position that adjusting screw rod 3 passes through from the junction of handle 2 and pedestal 6 become 6 lateral wall of pedestal its On his position, the 8th embodiment that is so formed, simply second and third embodiment is carried out it is simple merge modification, should be considered as Equivalent variations, belong to the equivalent embodiment of the present invention；Certainly, the change based on above-mentioned two situations, for example change quantity and change Become hand of spiral to combine the new embodiment to be formed, it should also be considered as equivalent variations, belong to the equivalent embodiment of the present invention.

Meanwhile the technical solution that should not be limited by preferred embodiment, push rod 5 is further included with screw hole 61 in the position of pedestal 6 As long as put can and uneven distribution unequal with angle, the distance of limited block 44 to the center of circle be more than rotation helical teeth 41 on gear teeth slot bottom To the center of circle distance can, adjusting screw rod 3 and swivel base 4 scheme, swivel base 4 and the push rod 5 that are sequentially connected be sequentially connected Scheme, the scheme that is threadedly coupled of push rod 5 and screw hole 61 etc..

The foregoing is only a preferred embodiment of the present invention, not makees limitation in any form to the present invention；It is all The those of ordinary skill of the industry can be shown in by specification attached drawing and described above and swimmingly implement the present invention；It is but all Those skilled in the art without departing from the scope of the present invention, are done using disclosed above technology contents The equivalent variations of a little variation, modification and evolution gone out, are the equivalent embodiment of the present invention；It is meanwhile all according to the present invention's Variation, modification and evolution of any equivalent variations that substantial technological makees above example etc., still fall within the skill of the present invention Within the protection domain of art scheme.

Claims

1. a kind of bore adjustable spanner, including the wrench body of bolt or nut can be twisted（1）With wrench body（1）Connection Handle（2）, the wrench body（1）Including push rod（5）, pedestal（6）, adjust push rod（5）The transmission mechanism of movement；Its feature It is：The pedestal（6）Vertical side be provided with and push rod（5）One-to-one screw hole（61）, the screw hole（61）With pushing away Bar（5）It is threadedly coupled；The transmission mechanism includes adjusting screw rod（3）, positioned at pedestal（6）Interior swivel base（4）, the adjusting Screw rod（3）With swivel base（4）Vertical side be sequentially connected, the swivel base（4）Horizontal side and push rod（5）Transmission connects Connect, so as to adjust push rod（5）Rotation.

2. bore adjustable spanner according to claim 1, it is characterised in that：The pedestal（6）Outside be equipped with for adjust Screw rod（3）The opening passed through, the opening are arranged on handle（2）With wrench body（1）Junction.

3. bore adjustable spanner according to claim 1, it is characterised in that：The adjusting screw rod（3）Including adjusting screw thread （31）, the swivel base（4）It is included on vertical side with adjusting screw thread（31）The rotation helical teeth of engagement（41）, the adjusting Screw rod（3）With swivel base（4）Vertical side formed Worm Wheel System.

4. bore adjustable spanner according to claim 1, it is characterised in that：The swivel base（4）It is included in level one The rotation straight-tooth of side（42）, the push rod（5）Surface formed in the vertical with rotation straight-tooth（42）The radial direction gear teeth of engagement （51）, the swivel base（4）Horizontal side and push rod（5）Form column gear transmission.

5. bore adjustable spanner according to claim 1, it is characterised in that：The push rod（5）Surface shape in the horizontal Radially external screw thread（52）, the screw hole（61）On be provided with and radial direction external screw thread（52）The radial direction internal thread of engagement（62）, The push rod（5）With screw hole（61）Form axial screw transmission.

6. bore adjustable spanner according to claim 1, it is characterised in that：The handle（2）On be provided with hook hole （21）.

7. bore adjustable spanner according to claim 1, it is characterised in that：The swivel base（4）Including making rotation Chassis（4）With pedestal（6）The snap ring that madial wall is slidably connected（43）, limitation swivel base（4）Rotating limited block（44）.

8. bore adjustable spanner according to claim 1, it is characterised in that：The push rod（5）Afterbody on be provided with Instrument coordinates the fluting twisted（53）, and push rod（5）It is directed toward the same center of circle.