CN206383086U - Ratchet spanner and stir structure for ratchet spanner - Google Patents

Abstract

The utility model provides a kind of ratchet spanner and stirs structure for ratchet spanner, and stirring structure includes：One disk and an auxiliary member.The disk has the breach of an arc；Two are located at the hook portion of breach both sides；One axle portion, it stands in disk side, and the axle portion is connected one first face and one second face by an arc surface, and first face synthesizes a summit with the second face.The auxiliary member is looped around axle portion periphery, the auxiliary member has two planar portions and two curved face parts, these planar portions are connected with each other, two planar portions junctions are defined for habitat, these curved face parts connect planar portions and extend to an opening both sides according to circumferencial direction, so as to be looped around outside the habitat of two planar portions, so that two curved face parts are round arc surface.A ratchet spanner is installed on when stirring structure, the auxiliary member possesses the toggle action of auxiliary to the Shuan Zhao mechanisms of ratchet spanner, reaches complete bridle joint or occlusion effect.

Description

Ratchet spanner and stir structure for ratchet spanner

Technical field

The utility model is related to the field of ratchet spanner, particularly relates to a kind of ratchet spanner, and for ratchet spanner Stir structure.

Background technology

TaiWan, China I546162 Patent Cases disclose a kind of ratchet spanner, and structure is stirred with one kind by configuration monodactyle mechanism. This is stirred structure and covers a compression spring with a cap body, and the two is configured on a control piece jointly.There is a recess at the back side of the pawl, Recess is headed on by cap body, with making the unilateral beat of pawl the gear part of clip one.The gear part is an actuator for being installed on ratchet spanner Part, determine determine actuator unidirectionally idle running not work done, reversely drive a workpiece as ratchet spanner is rotated.

The front end of the cap body is typically hemisphere face, and the recess is then the concave curved surface that pawl is formed at according to circumferencial direction, in cap body During point contact recess, cause the bridle joint of pawl and gear part or be engaged sufficiently complete.

In order to solve this problem, then the collocation of same trade research and development Shuan Zhao mechanisms is new-type stirs structure, it is ensured that the rotation of actuator Turn direction, such as Patent Case of the U.S. the 9th, 038,507 (while application obtains TaiWan, China I531448 Patent Cases).

In the Patent Case of ' No. 507, this, which stirs structure, includes a disk and a reverse bar, and the reverse bar has one in irregular The pole support of shape design, combines an irregular hole for being formed at disk with pole support, disk is turned in the same direction with reverse bar It is dynamic.Notch part both sides is defined for two hook portions, two protrusions are caught on hook portion toward axis direction one notch part of formation in the edge of the disk In one of pillar of pawl, related corresponding pawl leaves gear part (or releasing bridle joint relation).The pillar of another pawl is freely , by spring of the configuration between two pawls, promote free pawl bridle joint or occlusion gear part.

But, the direction that the pawl is promoted by acting force of the spring, and non-overlapping or bridle joint parallel to pawl and gear part or sting Direction is closed, so that the bridle joint of pawl and gear part or being engaged sufficiently complete, the collapse or damage of tooth is easily caused.

Therefore, how to improve and stir structure, just turn into the utility model problem urgently to be resolved hurrily.

Utility model content

In consideration of it, the utility model provides a kind of ratchet spanner, its main purpose is：Structure is stirred using assist type, Make pawl intactly bridle joint or occlusion gear part, effectively solve the drawbacks of traditional type Shuan Zhao mechanisms collapse or damaged on tooth.

Because of reaching for above-mentioned purpose, ratchet spanner of the present utility model includes：

One head, it has an installation portion；

One actuator, it has a gear part for being rotatably arranged on installation portion；

One pawl assembly, it is configured at installation portion, and the pawl assembly includes one first pawl and one second pawl, and each pawl has an engagement Face and a passive post, the field of conjugate action bridle joint gear part determine the unidirectional idle running not work done of actuator opposing headers, reversely drive a work Part is rotated；

One stirs structure, and it is configured in installation portion, and this, which stirs structure, includes：

One disk, it has the breach of an arc；Two are located at the hook portion of breach both sides；One axle portion, it stands in disk side, should Axle portion pass through installation portion, its together with disk can opposing headers rotate, with disk coordinate installation portion prevent axle portion leave；

One auxiliary member, it is looped around axle portion periphery, and the auxiliary member has two connected planar portions；

One toggle, it connects axle portion, and the toggle is located at outside head and operable disk rotates in same direction with axle portion.

Caught on when the passive post of the second pawl enters breach and by corresponding hook portion, second pawl coordinates axle portion to clip two planes One of portion, supports another planar portions to resist the first pawl appearance, it is ensured that the field of conjugate action maintains normal occluding relation with gear part.

Caught on when the passive post of the first pawl enters breach and by corresponding hook portion, first pawl coordinates axle portion to clip two planes One of portion, supports another planar portions to resist the second pawl appearance, it is ensured that the field of conjugate action maintains normal occluding relation with gear part.

Wherein, described axle portion is connected one first face and one second face by an arc surface, and first face is synthesized with the second face One summit.

In addition, the auxiliary member also has two curved face parts, two curved face part connects two planar portions and constitutes irregular lamellar body, and this two Planar portions accompany certain angle, support two curved face parts to extend to an opening both sides according to circumferencial direction, so as to be looped around two planar portions Habitat outside so that two curved face parts are round arc surface.

When the passive post of the second pawl is caught on by corresponding hook portion, second pawl coordinates the first face to clip planar portions.When first The passive post of pawl is caught on by corresponding hook portion, and first pawl coordinates the second face to clip planar portions.

In ratchet spanner of the present utility model, the axle portion has two short columns, and two short column connection two is formed at the post groove of toggle.

Furthermore, this is stirred structure and also has a compression spring and a ball, and configuration is logical one jointly with ball for the compression spring Cross disk and go deep into the pearl groove of axle portion, the ball is promoted by compression spring and part exposes pearl groove.

Specifically, structure of the present utility model of stirring includes：

One disk, it has the breach of an arc；Two are located at the hook portion of breach both sides；One axle portion, it stands in disk side, should Axle portion is connected one first face and one second face by an arc surface, and first face synthesizes a summit with the second face；

One auxiliary member, it is looped around axle portion periphery, and the auxiliary member has two planar portions and two curved face parts, and two planar portions are each other It is connected, defines two planar portions junctions for habitat, two curved face part connects planar portions and extends to an opening according to circumferencial direction Both sides, so as to be looped around outside the habitat of two planar portions, so that two curved face parts are round arc surface.

In this way, ratchet spanner of the present utility model stirs structure using assist type, make pawl intactly bridle joint or occlusion gear Portion, effectively solves the drawbacks of traditional type Shuan Zhao mechanisms collapse or damaged on tooth.

Technology, means and its effect used about the utility model, hereby lifts a preferred embodiment and coordinates schema detailed It is thin be illustrated in after, it is believed that the above-mentioned purpose of the utility model, construction and feature, when can by one deeply specifically understand.

Brief description of the drawings

Fig. 1 is the constitutional diagram of the preferred embodiment of the utility model ratchet spanner one.

Fig. 2 is the partial exploded view of ratchet spanner.

Fig. 3 is the partial exploded view of another angle of ratchet spanner.

Fig. 4 is the constitutional diagram splitted along Fig. 1 line A-A.

Fig. 5 is the action series one of disk.

Fig. 6 is auxiliary member and the action series one of axle portion.

Fig. 7 is the action series two of disk.

Fig. 8 is auxiliary member and the action series two of axle portion.

Description of reference numerals：10 ratchet spanneres；11 drive chamber；12 grip parts；13 pawl rooms；14 linkage sections；15 actuation chambers；16 Head；17 dish rooms；18 installation portions；19 circular depressions；20 cover plates；21st, 23 arrow；22 circular holes；24 screws；26 through holes；28 depressions； 30 actuators；32 upper bearing portions；34 gear parts；36 bearing portions；38 column sections；40 pawl assemblies；41 fields of conjugate action；42 first pawls； 43 passive posts；44 second pawls；46 elastic components；48 holes；50 stir structure；52 compression springs；54 balls；The post groove of 56 toggle 58；60 Disk；61 first faces；62 axle portions；63 second faces；64 pearl grooves；65 arc surfaces；66 hook portions；67 summits；68 breach；69 short columns；70 Auxiliary member；72 planar portions；74 habitats；76 curved face parts；78 openings.

Embodiment

Referring to Fig. 1, the concrete structure of the preferred embodiment of ratchet spanner 10 1 is illustrated, including a grip part 12 and a head 16, the two is combined together by a linkage section 14, and head 16 is allowed with the synchronous axial system of grip part 12 by linkage section 14.In other words Say, a moment of torsion is bestowed in operation grip part 12 to head 16.

In some embodiments, the ratchet spanner 10 only has head 16, without grip part and linkage section.Want to know about specific knot Structure, refers to the Patent Case of the U.S. the 9th, 038,507, it will not go into details in this.

As shown in figs 2-4, there is an installation portion 18 on the head 16, and the installation portion 18 has a drive chamber 11, a pawl room 13, one Actuation chamber 15 and a dishful of room 17.One cover plate 20 is locked in head 16 by two-screw 24, the actuator to being configured at installation portion 18 30th, a pawl assembly 40 and one stirs the generation of structure 50 closing or barrier effect, and faces actuation chamber 15 or dish room 17 in cover plate 20 Place forms two depressions 28.

In figure, the drive chamber 11 is generally circular space, and it has a circle for being formed at head 16 at cover plate 20 Shape recess 19, coordinates a circular hole 22 for running through cover plate 20 to accommodate local actuator 30.In the present embodiment, the circular depressions 19 are Circular opening.Some embodiments, the circular depressions 19 are groove or blind hole, such as the 9th, 038, No. 507 Patent Case.

The actuator 30 forms a upper bearing portion 32, a gear part 34, a bearing portions 36 and one from top to bottom according to axial direction Column sections 38.The upper bearing portion 32 inserts the circular depressions 19 on head 16, and the bearing portions 36 pass through the circular hole 22 of cover plate 20, branch Hold gear part 34 to rotate in the opposing headers 16 of drive chamber 11, related column sections 38 expose to cover plate 20 and can rotate in same direction.

Then, the pawl room 13 is communicated or local overlapping with drive chamber 11, it is sufficient to accommodate foregoing pawl assembly 40, it is allowed to user Engaging tooth wheel portion 34 is selected, or releases meshing relation, the determination effect of torque direction is reached.

The pawl assembly 40 is made up of one first pawl 42, one second pawl 44 and an elastic component 46.The pawl 42,44 has an engagement Face 41, a passive hole 48 of post 43 and one, the field of conjugate action 41 is made up of multiple continuous teeth, its towards gear part 34 with quilt Dynamic post 43 is not or not same one side of pawl 42,44.The elastic component 46 can be helical spring, secondly end insert corresponding hole 48 there is provided Active force needed for these pawls 42,44.In this way, the unidirectional idle running not work done of 30 opposing headers of the pawl assembly 40 decision actuator 16, A workpiece (such as sleeve, extension bar or other instruments) is reversely driven to rotate.

More specifically, the first pawl 42 of operation bites gear part 34, and the head 16 of the ratchet spanner 10 is along first direction Rotation, related actuator 30 rotates in same direction with workpiece.When head 16 is revolved according to second direction (namely first party is in the opposite direction) Turn, first pawl 42 is to slip with gear part 34, so that actuator 30 and workpiece are slack.

Mutually conversely, the second pawl 44 of operation bites gear part 34, while releasing the first pawl 42 and the meshing relation of gear part 34. This moment, the head 16 of the ratchet spanner 10 rotates along first direction, and second pawl 44 is to slip with gear part 34, so that driving Moving part 30 and workpiece are slack.When reversely (i.e. second direction) rotation of head 16, second pawl 44 bites gear part 34, related Actuator 30 rotates in same direction with workpiece.

The actuation chamber 15 is the circular opening towards pawl room 13, the dish room 17 that its one end connection one is relatively large in diameter, the other end A through hole 26 is formed axially through the appearance of head 16 along actuation chamber 15, can accommodate and local stir structure 50.

Described structure 50 of stirring is by a compression spring 52, a ball 54, a toggle 56, a disk 60 and an auxiliary member 70 compositions.

Wherein, the disk 60 is generally circular, cuts open into the breach 68 of an arc from periphery toward axis direction, and by disk 60 positions for being located at the both sides of breach 68 are considered as two hook portions 66.The disk 60 simultaneously founds an axle portion 62, and another face is toward the direction of axle portion 62 Form a pearl groove 64, it is allowed to which ball 54 is inserted in pearl groove 64 together with compression spring 52.The one end of compression spring 52 heads on pearl The closing portion of the depths of groove 64, the other end promotes ball 54 is local to expose pearl groove 64, is but difficult to leave disk 60.

When axle portion 62 is by actuation chamber 15, the diameter of the disk 60 is less than the diameter of dish room 17, but more than actuation chamber 15 Diameter, limitation axle portion 62 is local to be exposed head 16 and is connected with toggle 56, facilitates a user to operate toggle 56 to determine axle portion 62 Opposing headers 16 are rotated.This moment, described ball 54 blocks one of two depressions 28, and producing positioning to disk 60 and axle portion 62 makees With.

In the present embodiment, two short columns 69 protrusion axle portion 62 is exposed at head 16, and every short column 69 is round, be can be inserted into and urgent Tight two are formed at the post groove 58 of toggle 56, so that axle portion 62 rotates in same direction with disk 60.Some embodiments, the short column 69 is not round , but it is non-circular, and quantity is reduced to one from two, the post groove 58 of identical quantity and shape is can be inserted into, can also be allowed short Post 69 is packed in toggle 56 and produces synchronization action effect.

The auxiliary member 70 constitutes irregular lamellar body by two planar portions 72 and two curved face parts 76.These planar portions 72 be connected and Certain angle is accompanied, supports these curved face parts 76 to extend to 78 both sides of opening according to circumferencial direction, so as to be looped around two planar portions 72 periphery of habitat 74.

As shown in Figure 5, Figure 6, when auxiliary member 70 inserts actuation chamber 15, the appearance of axle portion 62 is by auxiliary member 70 round limit Make one of two planar portions 72 and head on corresponding pawl 42,44, it is ensured that pawl 42,44 maintains normal bridle joint with gear part 34 or is engaged shape State, allows the moment of torsion on head 16 to be efficiently transferred to column sections 38.

From the point of view of truncation surface, the axle portion 62 has an arc surface 65, is connected one first face 61, the other end in the one end of arc surface 65 One second face 63 is connected, first, second face 61,63 synthesizes a summit 67 according to obtuse angle.Wherein, the arc surface 65 is by two curved face parts 76 round first face 61 coordinates the first pawl 42 to clip corresponding planar portions 72, supports another planar portions 72 to resist the second pawl 44 appearances.

This moment, the passive post 43 of first pawl 42 is caught on by a hook portion 66, can be moved toward the habitat 74 of two planar portions 72 It is dynamic, release the field of conjugate action 41 and the bridle joint or occluding relation of gear part 34.The one end of elastic component 46 drive the beat of the first pawl 42 and from Tooth punching wheel portion 34, the other end promotes the second pawl 44 to be moved along the direction of Fig. 6 arrows 21, until the second pawl 44 is touched around pawl room 13 Wall.Therefore, the back side of second pawl 44 is propped up jointly by the wall of pawl room 13 with planar portions 72, it is ensured that the field of conjugate action 41 and gear part 34 maintain normal bridle joint or interlocking pattern.

In Fig. 7, Fig. 8, the disk 60, as toggle 56 (referring to Fig. 4) is rotated backward, makes the second pawl 44 with axle portion 62 Passive post 43 enters breach 68, so as to be caught on by corresponding hook portion 66, drives the second pawl 44 toward the habitat 74 of two planar portions 72 It is mobile, release the field of conjugate action 41 and the bridle joint or occluding relation of gear part 34.Meanwhile, release the first pawl 42 passive post 43 with it is another Individual hook portion 66 catches on relation, first pawl 42 is affranchised state.

When the summit 67 of axle portion 62 contacts the habitat 74 of two planar portions 72, the angle expansion of two planar portions 72, the curved surface Portion 76 can be along the stretching exercise of arc surface 65.When crossing the habitat 74 of two planar portions 72 on the summit 67 of axle portion 62, two planes The angle reduction in portion 72, the curved face part 76 can be along the narrowing movement of arc surface 65.Because opening 78 is less than the diameter of axle portion 62, institute Axle portion 62 must not be departed from according to radial direction with auxiliary member 70, and disk 60 and the opposing headers 16 of axle portion 62 rotation not by shadow Ring.

Certainly, second face 63 coordinates the second pawl 44 to clip corresponding planar portions 72, supports another planar portions 72 to resist The appearance of first pawl 42, related first face 61 is away from the first pawl 42.Likewise, the elastic component 46 understands the second pawl of beat 44 and leaves tooth Wheel portion 34, and promote the first pawl 42 to be moved along the direction of Fig. 8 arrows 23.The wall of the rear-face contact pawl room 13 of first pawl 42 and flat Face 72, so that the first pawl 42 makes the field of conjugate action 41 obtain complete bridle joint or interlocking pattern close to gear part 34.

Claims (6)

1. a kind of ratchet spanner, it is characterised in that including：

One head (16), it has an installation portion (18)；

One actuator (30), it has a gear part (34) for being rotatably arranged on installation portion (18)；

One pawl assembly (40), it is configured at installation portion (18), and the pawl assembly (40) includes one first pawl (42) and one second pawl (44), first pawl (42) has a field of conjugate action (41) and a passive post (43) with second pawl (44), and the field of conjugate action (41) is nibbled Gear part (34) is connect, the unidirectional idle running not work done of actuator (30) opposing headers (16) is determined, reversely drives a workpiece to rotate；

One stirs structure (50), and it is configured in installation portion (18), and this, which stirs structure (50), includes：

One disk (60), it has the breach (68) of an arc；Two are located at the hook portion (66) of breach (68) both sides；One axle portion (62), It stands in disk (60) side, and the axle portion (62) passes through installation portion (18), and the axle portion (62) being capable of relative head together with disk (60) Portion (16) is rotated, and coordinates installation portion (18) to prevent axle portion (62) from leaving with disk (60)；

One auxiliary member (70), it is looped around axle portion (62) periphery, and the auxiliary member (70) has two connected planar portions (72)；

One toggle (56), it connects axle portion (62), and the toggle (56) is located at head (16) can operate disk (60) and axle outside Portion (62) rotates in same direction；

Caught on when the passive post (43) of the second pawl (44) enters breach (68) and by corresponding hook portion (66), second pawl (44) is matched somebody with somebody Sympodium portion (62) clips one of two planar portions (72), supports another planar portions (72) to resist the first pawl (42) appearance, it is ensured that to nibble Conjunction face (41) maintains normal occluding relation with gear part (34)；

Caught on when the passive post (43) of the first pawl (42) enters breach (68) and by corresponding hook portion (66), first pawl (42) is matched somebody with somebody Sympodium portion (62) clips one of two planar portions (72), supports another planar portions (72) to resist the second pawl (44) appearance, it is ensured that to nibble Conjunction face (41) maintains normal occluding relation with gear part (34).

2. ratchet spanner according to claim 1, it is characterised in that the axle portion (62) is by an arc surface (65) linking 1 the Simultaneously (61) and one second face (63), first face (61) and the second face (63) synthesis one summit (67).

3. ratchet spanner according to claim 2, it is characterised in that the auxiliary member (70) also has two curved face parts (76), should Two curved face parts (76) connect two planar portions (72) and constitute irregular lamellar body, and two planar portions (72) accompany certain angle, support Two curved face parts (76) extend to an opening (78) both sides according to circumferencial direction, so as to be looped around the habitat (74) of two planar portions (72) Outside, so that two curved face parts (76) are round arc surface (65)；

When the passive post (43) of the second pawl (44) is caught on by corresponding hook portion (66), second pawl (44) coordinates the first face (61) folder Planar portions (72)；When the passive post (43) of the first pawl (42) is caught on by corresponding hook portion (66), first pawl (42) coordinates the Two faces (63) clip planar portions (72).

4. ratchet spanner according to claim 1, it is characterised in that the axle portion (62) has two short columns (69), two short column (69) connection two is formed at the post groove (58) of toggle (56).

5. ratchet spanner according to claim 1, it is characterised in that this is stirred structure (50) and also has a compression spring (52) With a ball (54), configuration by disk (60) and gos deep into axle portion (62) one jointly for the compression spring (52) and ball (54) In pearl groove (64), the ball (54) is promoted by compression spring (52) and part exposes pearl groove (64).

6. a kind of stir structure for ratchet spanner, it is characterised in that including：

One disk (60), it has the breach (68) of an arc；Two are located at the hook portion (66) of breach (68) both sides；One axle portion (62), It stands in disk (60) side, and the axle portion (62) is connected one first face (61) and one second face (63) by an arc surface (65), should First face (61) and the second face (63) synthesis one summit (67)；

One auxiliary member (70), it is looped around axle portion (62) periphery, and the auxiliary member (70) has two planar portions (72) and two curved face parts (76), two planar portions (72) are connected with each other, and define two planar portions (72) junction for habitat (74), two curved face part (76) Connect planar portions (72) and extend to an opening (78) both sides according to circumferencial direction, so as to be looped around the habitat of two planar portions (72) (74) outside, so that two curved face parts (76) are round arc surface (65).