CN205799327U - Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly - Google Patents

Abstract

The utility model discloses a kind of clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly, this clip ratchet spanner and c-type card spring coil solid screwdriver bit assembly thereof include wrench body and c-type card spring coil solid screwdriver bit assembly, described wrench body be provided with base aperture, described base aperture is provided with ratchet, the inwall of described ratchet is provided with c-type snap ring, described c-type snap ring abuts with the trapezoid block being contained in ratchet inwall, one end of the bevelled transmission lever of cooperating therewith tool it is provided with on the inclined-plane of described trapezoid block, the other end arranges and abuts with hollow top cover, described hollow top cover is provided with the end of thread of projection, c-type card spring coil solid screwdriver bit assembly and ratchet spanner easy accessibility, fixing-stable.

Description

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly

Technical field

This utility model relates to a kind of spanner field, particularly to a kind of card with c-type card spring coil solid screwdriver bit assembly Hoop ratchet spanner.

Background technology

Spanner very common in our life, is primarily used to keep in repair the plant equipment with screw.Ratchet wrench Hands is the one in spanner, and it is wider that it is suitable for, and ratchet spanner mainly applies at narrow space, example automobile spark plug, Automobile chassis, engine part, the dismounting of automobile engine shell, plates of automobile, water tank, cooling pumping, oil filter, cold But compressor.Full polishing, Asia, surface light, wear resistant and rustproof is splendid;Specialty Design has only to 5 ° of action rotating nuts;Unidirectional drive Dynamic, reverse clockwise, convenient agility, the most quickly.

Authorization Notice No. is that the Chinese patent of CN205201387U discloses a kind of ratchet wrench structure, and it includes body, Body is additionally provided with clamping slot, and tooth processed is resisted against on the sidewall of the second tank of body, gets up and be provided with on front side of tooth processed in the front side of tooth processed Tooth engaged, tooth engaged is meshed with ratchet, tooth processed be provided with appearance play groove, the cambered surface on rear side of tooth processed be provided with one convex soon, also include Elastic parts, elastic parts one end is stretched in appearance bullet groove, and elastic parts is between just face and the tooth processed of the second appearance bullet groove；Blocking Shank it is provided with in groove；

The deficiencies in the prior art expenditure is, the mode of its clamping c-type solid screwdriver bit of card spring coil is mainly by C word shape The flexible resilient carried reaches an easy clasping effects, and this fastening connects effect, and in operation, some have certain viscosity During screw, the ratchet spanner involved by prior art will be unable to the stable fixing c-type solid screwdriver bit of card spring coil, and causes c-type card The solid screwdriver bit of spring coil comes off, in-convenience in use.

Utility model content

The purpose of this utility model is to provide a kind of clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly, tool Fast and stable is had to fix the c-type solid screwdriver bit of card spring coil, the advantage preventing the c-type solid screwdriver bit of card spring coil from coming off.

Above-mentioned technical purpose of the present utility model has the technical scheme that

A kind of clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly, solid including wrench body and c-type card spring coil Real screwdriver bit assembly, is characterized in that: described wrench body is provided with base aperture, is provided with ratchet, described ratchet in described base aperture Inwall be provided with c-type snap ring, described c-type snap ring abuts with the trapezoid block being contained in ratchet inwall, on described trapezoid block arrange Having transmission lever, the inclined-plane in described transmission lever to abut with the inclined-plane on trapezoid block, described base aperture is provided above hollow top cover, Described hollow top cover is provided with the protruding end threadeded with base aperture, and described hollow top cover is connected with transmission lever, described c-type card It is provided with, on spring coil solid screwdriver bit assembly, the groove matched with c-type snap ring.

Use said structure, c-type snap ring and the c-type card spring coil solid screwdriver bit group being provided with the groove coordinated with c-type snap ring Part connects, and then makes the protruding end on hollow top cover promote transmission lever in the way of turn hollow top cover, and transmission lever is provided with The inclined-plane matched with trapezoid block, when transmission lever pressurized, drive link promotes trapezoid block to compress c-type clasp, thus by c-type jump ring Enclose the firm clip of solid screwdriver bit on ratchet spanner；Want to take out the c-type solid screwdriver bit of card spring coil, hollow of outwarding winding top cover, Trapezoid block no longer pressurized, c-type snap ring resets due to the elastic force effect of himself, thus is easily taken by the c-type solid screwdriver bit of card spring coil Out.

More preferably: described base aperture sidewall is provided with control chamber, and described control intracavity is provided with ratchet and break-in Valve, described ratchet is divided into the tooth district that two increment directions are different, and described makeshift valve controls the different tooth districts of ratchet and described ratchet On hook tooth connect, the sidewall in described control chamber is provided with obstruct chock, described obstruct chock is connected with elastic construction, institute State ratchet and abut with intercepting chock.

Said structure, ratchet ring and the click-fit controlling intracavity being arranged on base aperture sidewall is used to use, ratchet spine Pawl constitutes one-way turning mechanism so that user, can be by revolving repeatedly when narrow and small rotation space carries out bolt tightening operation The mode turned realizes unidirectional tightening；

The ratchet increment that makeshift valve controls ratchet different is connected with ratchet, and two different increments are connected prevention spine with ratchet The rotation direction of wheel is different, say, that by the control of makeshift valve, ratchet spanner can realize the most unidirectional Drive bolt；

Be provided with antioverloading mechanism on sidewall, when use the spanner that relates to of this utility model to pull to have got rusty or other one When a little modes cause screw or the bolt connecting tension, excessive pull spanner the flank of tooth on ratchet or ratchet may be caused to become Shape, is accomplished by arranging an overload mechanism this time and makes ratchet and pawl depart from, thus play the protective effect to spanner.

More preferably: described sidewall is provided with elastic pressure road, and described obstruct chock and described elastic construction are respectively provided with In elasticity pressure road, the zone line that described elastic construction surrounds sectional area in channel direction is less than intercepting chock at passage It is provided with guiding circle on sectional area on direction, elastic construction and obstruct chock.

Using said structure, when spanner is in running order, the side pressure surface of ratchet is pressed against on obstruct chock, gives and intercepts One lateral pressure of chock, when ratchet and pawl is in big stress, ratchet promotes the centre intercepting chock towards two elastomer block Regional movement, when intercepting the rounding region that chock departs from elastomer block, and now intercepts chock and is no longer influenced by elastomer block at ratchet Holding power in thrust direction, smaller resistance, intercept chock and promoted rapidly, corresponding ratchet departs from rapidly spine Wheel, thus play protection ratchet mechanism, prevent the effect that the tooth on ratchet and pawl deforms.

More preferably: described elastic construction is two or more rigid elastic being uniformly arranged on elastic pressure road inwall Block or described elastic construction are for being arranged on rigid elastic c-type tubular construction.

Using said structure, the power needed for deforming due to ratchet is relatively big, and elastic construction selects to use rigid elastic block, or system The c-type pipe become, compared with elastomer block, enhanced convenience is wanted in the manufacture of c-type elastic tube and installation, but in the stability controlled not Such as elastomer block.

More preferably: described antioverloading mechanism also includes pushing away stopping bar, push away stopping bar one end described in and be arranged on two elasticity The mid portion of block, one end is locked on the lateral wall of described wrench body.

Use said structure, when intercepting the zone line that chock enters elastomer block, intercept chock drive and be arranged on two One end pushing away stopping bar of the centre of elastomer block, outwards pushes throw-out lever, only need to be by only needs reset and intercept chock when Push rod pushes inward, and only has less frictional force owing to now intercepting chock power suffered on throw-out lever direction, and throw-out lever can Easily obstruct chock is pushed into reset.

More preferably: the structure of described ratchet is straight spur gear, described ratchet include ratchet face, reversing groove with And side pressure surface, described side pressure surface is when ratchet is in running order and intercepts chock conflict, and described ratchet face is arc-shaped, described The pawl teeth that the center line with arc surface is symmetrical, the reference circle of the hook tooth of described pawl teeth and described ratchet it is provided with on ratchet face The circular arc of position is vertical.

Using said structure, ratchet uses gear structure can guide to one sliding of pawl teeth overload when, profit Playing a role in the antioverloading mechanism when there is overload condition, spanner is when rotating toward the direction not stoped by spanner ratchet simultaneously Hook tooth is obtained in that more preferable shuffle effect with the form design of Involute gear, reduces resistance；

More preferably: described ratchet includes that ratchet face, reversing groove and side pressure surface, described side pressure surface are at ratchet Conflicting with obstruct chock during duty, described ratchet face is arc-shaped, and described ratchet face is provided with the center line with arc surface Symmetrical pawl teeth, described pawl teeth is vertical with the circular arc of the reference circle position of the hook tooth of described ratchet.

Using said structure, pawl teeth, along the centrosymmetry of arc surface, which forms the pawl teeth of two-way control, only Ratchet to be stirred can realize double-direction control, and pawl teeth is vertical with the arc position of the reference circle of described hook tooth, and this is in fact A bit of circular arc, in the range of it, the direction of the power that ratchet applies is close to tangent to periphery direction, and biasing effect can be made good.

More preferably: described makeshift valve includes steering head, spring catch, spring, toggle, described spring catch and described group Button connects, and described spring housing is inside described spring catch, and described spring catch inserts steering head endoporus, and described spring is longer than described bullet Spring pin is connected with steering head.

Using said structure, spring catch one end is connected on toggle, and the other end is socketed with steering head, and spring catch is to steering head Thering is provided and support and location, toggle is turned to by control spring catch thus controls toggle and turn to, and then controls turning to of ratchet, spring Spring within Xiao is connected with steering head, provides the scalability in spring catch direction to steering head, so that ratchet is on edge Increase power of the unloading ability between ratchet and pawl during the motion of rotatable direction, thus reduce deterioration.

More preferably: the described clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly also includes handle, institute State and on handle, be provided with anti-skidding glue-line.

Using said structure, anti-skidding glue-line can play anti-skidding effect in use, and gelatinous layer can play necessarily simultaneously Cushioning effect.

More preferably: on the pole cap of described control bar, be provided with a button, described button exceeds described ratchet spanner The surface of head.

Use said structure, control bar owing to prevent from it from jumping out from base aperture arranging one to stop it outwards to jump out Structure, say, that the pole cap controlling bar is inevitable in the inside of spanner base aperture, hands touches the button when is not so Easily, settings button on pole cap is so that the operating parts of control bar extends to, outside the surface of ratchet wrench head, use Family uses convenient.

In sum, this utility model has the advantages that

The c-type card spring coil solid screwdriver bit assembly of ratchet spanner and supporting setting is by the ratchet wrench head that is arranged on Groove clamping on the c-type snap ring of ratchet structure inwall setting and the solid screwdriver bit of c-type card spring coil realizes ratchet spanner and c-type jump ring Enclose the fast assembling-disassembling of solid assembly；Makeshift valve controls two-way ratchet and connects respectively at ratchet simultaneously, thus plays and realize spanner Controlling in one-directional rotation the most in the two directions, sidewall is provided with antioverloading mechanism simultaneously, it is achieved that When pulling big torque bolt with ratchet spanner, it is to avoid torque exceedes the maximum load of ratchet structure and causes the feelings of deformation of tooth surface Condition, the use making ratchet spanner is more reasonable, increases the service life.

Accompanying drawing explanation

Fig. 1 is the ratchet spanner of embodiment one and c-type card spring coil solid screwdriver bit assembly connect after overall structure figure；

Fig. 2 is the semi-cutaway of Fig. 1 ratchet spanner of embodiment one；

Fig. 3 is the ratchet spanner of embodiment one Fig. 2 and the solid screwdriver bit of c-type card spring coil connect after enlarged drawing；

Fig. 4 is Fig. 1 sectional view of embodiment one,

Fig. 5 is the partial sectional view of Fig. 4 of embodiment one；

Fig. 6 is the structural representation of the c-type card spring coil solid screwdriver bit assembly of embodiment one.

In figure, 1. handle；2. head；3. base aperture；21. control chamber；32. hollow top covers；33. ratchets；34. ratchets；41. Toggle；42. springs；43. spring catch；44. steering heads；51. push away stopping bar；52. intercept chock；53. elastomer block；341. ratchet face； 342. reversing groove；343. side pressure surface；61.C type snap ring；62. trapezoid blocks；63. transmission levers；The 7.C type solid screwdriver bit of card spring coil；71. Affixed bar；72. driver bits；711. groove.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Embodiment 1: clip ratchet 33 spanner and c-type card spring coil solid screwdriver bit assembly 7 thereof, as Figure 1-3, wrench body Being provided with base aperture 3, be provided with ratchet 33 in base aperture 3, the inwall of ratchet 33 is provided with c-type snap ring, and C-shaped ring is used for and c-type Groove 711 on card spring coil solid screwdriver bit assembly 7 coordinates thus is fixed on ratchet 33 spanner and carries out preliminary clamping, c-type Snap ring abuts with the trapezoid block 62 being contained in ratchet 33 inwall, the inclined-plane of trapezoid block 62 is provided with and cooperating therewith has inclined-plane One end of transmission lever 63, transmission lever 63 other end arranges and abuts with hollow top cover 32, and described hollow top cover 32 is provided with projection The end of thread, then make the protruding end on hollow top cover 32 extrude with transmission lever 63 in the way of turn hollow top cover 32, pass Passing bar 63 and be provided with the inclined-plane matched with trapezoid block 62, when transmission lever 63 pressurized, drive link promotes trapezoid block 62 to compress c-type Clasp 61, thus by firm for c-type card spring coil solid screwdriver bit assembly 7 clip on ratchet 33 spanner；Want c-type card spring coil solid Real screwdriver bit assembly 7 is taken out, and hollow of outwarding winding top cover 32, trapezoid block 62 no longer pressurized, c-type snap ring is due to the elastic force effect of himself Reset, thus easily c-type card spring coil solid screwdriver bit assembly 7 is taken out.

With reference to Fig. 5, figure can be seen that, in the combinative structure of ratchet 33 ratchet 34, the structure of ratchet 33 is straight tooth column Gear, ratchet 34 includes that reversing groove 342, reversing groove and side pressure surface 343, reversing groove 342 are arc-shaped, reversing groove 342 sets It is equipped with ratchet 34 tooth that the center line with arc surface is symmetrical, the circular arc of the reference circle position of ratchet 33 tooth of ratchet 34 tooth and ratchet 33 Vertically, now ratchet 33 can only rotate clockwise, and rotates counterclockwise and is obstructed.

The reversing groove of ratchet 34 is connected with spring catch 43 with steering head 44, and spring catch 43 other end is connected on toggle 41, Spring catch 43 provides to steering head 44 and supports and location, and toggle 41 is turned to by control spring catch 43 thus controls toggle 41 turns To, so control ratchet 34 locking turn to, the spring within spring catch 43 is connected with steering head 44, provides to steering head 44 The scalability in spring catch 43 direction so that ratchet 34 increase when moving along rotatable direction ratchet 33 and ratchet 34 it Between power of unloading ability, thus reduce deterioration.

Now, when spanner rotates counterclockwise, the piezometric surface of ratchet 34 is conflicted with intercepting chock 52, and ratchet 34 is given and intercepted plug 52 1 lateral pressures of block, promote obstruct chock 52 to move to two described elastomer block 53 zone lines, and two elastomer block 53 form The sectional area in region of centre be slightly less than the sectional area intercepting seben, elastomer block 53 with intercept the part setting that chock 52 contacts The guiding circle having rounding and intercept on chock 52 connects, and when ratchet 33 and ratchet 34 are in big stress, ratchet 34 promotes Intercept the chock 52 zone line motion towards two elastomer block 53, when intercepting the rounding region that chock 52 departs from elastomer block 53, by Broadly falling into rigid smooth material in elastic and obstruct chock 52, frictional force each other is less, and now intercepts chock 52 not Again by the elastomer block 53 power in ratchet 34 thrust direction, intercepting chock 52 and promoted rapidly, corresponding ratchet 34 takes off rapidly From ratchet 33, thus play the effect that protection ratchet 33 mechanism prevents the tooth on ratchet 33 and ratchet 34 from deforming；

When intercepting the zone line that chock 52 enters elastomer block 53, intercept chock 52 drive and be arranged on two elastomer block 53 One end pushing away stopping bar 51 of centre, throw-out lever is outwards pushed, only need to be by thrust needs reset and intercept chock 52 when Bar pushes inward, and only has less frictional force owing to now intercepting chock 52 power suffered on throw-out lever direction, and throw-out lever can Easily obstruct chock 52 is pushed into reset.

With reference to Fig. 6, c-type card spring coil solid screwdriver bit assembly 7, screwdriver bit is made up of, in figure driver bit 72 and solid reach bar portion 71 The driver bit 72 illustrated is merely illustrative, can replace with other driver bits 72 in actual production, in figure in solid reach bar portion 71 It is provided with the groove 711 connected with c-type snap ring in ratchet spanner.

During use, c-type card spring coil solid screwdriver bit assembly 7 is filled in and passed in the inner hexagonal hole of ratchet spanner, until impression To snap ring and the clamping of solid screwdriver bit, then rotary hollow top cover 32, hollow top cover 32 extrudes transmission lever, transmission lever by with wedge The inconsistent inclined-plane of shape block presses wedge, and wedge extruding is reduced the diameter of c-type snap ring, thus solid screwdriver bit is fastened on spine On wheel spanner.

Embodiment 2, difference from Example 1 is, the elastic construction of embodiment 2 be set to c-type elastic tube rather than Be arranged on the rigid elastic block in elastic pressure road, comparatively speaking, c-type pipe at this province's spanner volume with regard in the case of smaller It is more easy to produce and install, but owing to c-type pipe is integrated manufacture, itself adjustable elastic threshold value model in narrow and small elastic pressure road For enclosing relative resilient block less and stable not as elastomer block on Impact direction.

Claims (9)

1. with a clip ratchet spanner for c-type card spring coil solid screwdriver bit assembly, solid including wrench body and c-type card spring coil Screwdriver bit assembly (7), is characterized in that: described wrench body is provided with base aperture (3), and described base aperture is provided with ratchet in (3) (33), the inwall of described ratchet (33) is provided with c-type snap ring, described c-type snap ring and the trapezoid block being contained in ratchet (33) inwall Abut, described trapezoid block is provided with transmission lever (63), the inclined-plane in described transmission lever (63) and the inclined-plane on trapezoid block (62) Abutting, described base aperture is provided above hollow top cover (32), and described hollow top cover (32) is provided with base aperture (3) screw thread even The protruding end connect, described hollow top cover (32) is connected with transmission lever (63), and described c-type card spring coil solid screwdriver bit assembly (7) sets It is equipped with the groove (711) matched with c-type snap ring.

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 1, is characterized in that: institute State base aperture (3) sidewall and be provided with control chamber (21), in described control chamber (21), be provided with ratchet (34) and makeshift valve (4), institute Stating ratchet and be divided into different tooth district, two increment directions, described makeshift valve (4) controls the different tooth districts of ratchet (34) and described spine Hook tooth on wheel (33) connects, and the sidewall of described control chamber (21) is provided with obstruct chock (52), described obstruct chock (52) being connected with elastic construction, described ratchet (34) abuts with intercepting chock (52).

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 2, is characterized in that: institute Stating sidewall and be provided with elastic pressure road, described obstruct chock (52) and described elastic construction are arranged in elastic pressure road, described bullet Property the zone line sectional area in channel direction that surrounds of structure less than intercepting the chock (52) sectional area in channel direction, Guiding circle it is provided with on elastic construction and obstruct chock (52).

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 3, is characterized in that: institute Stating elastic construction is that the two or more elastic rigid elastic blocks pressing road inwall or described elastic construction of being uniformly arranged on is for arranging At rigid elastic c-type tubular construction.

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 3, is characterized in that: institute Be additionally provided with in stating elastic pressure road and push away stopping bar (51), described in push away stopping bar (51) one end and be arranged on the pars intermedias in two elastic pressure roads Point, one end is locked on the lateral wall of described wrench body.

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 2, is characterized in that: institute The structure stating ratchet (33) is straight spur gear.

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 2, is characterized in that: institute Stating ratchet (34) and include ratchet face (341), reversing groove (342) and side pressure surface (343), described side pressure surface (343) is at ratchet (34) time in running order with intercept chock (52) and conflict, described ratchet face (341) is arc-shaped, described ratchet face (341) On be provided with the pawl teeth symmetrical with the center line of arc surface, the reference circle position of described pawl teeth and the hook tooth of described ratchet (33) The circular arc put is vertical.

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 2, is characterized in that: institute State makeshift valve and include steering head (44), spring catch (43), spring (42), toggle (41), described spring catch (43) and described toggle (41) connecting, it is internal that described spring (42) is enclosed within described spring catch (43), and described spring catch (43) inserts steering head (44) endoporus, Described spring (42) is longer than described spring catch (43) and is connected with steering head (44).

Clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly the most according to claim 1, is characterized in that: institute State and be provided with anti-skidding glue-line on the handle (1) of the clip ratchet spanner with c-type card spring coil solid screwdriver bit assembly.