CN105563394A - Spanner - Google Patents

Abstract

The invention provides a spanner. A baseplate is fastened on a main body for mounting a wheel assembly and a rotating button on the main body. The wheel assembly includes a gear and a brake block. The rotating button has a transverse groove and a longitudinal groove. One of two elastic assemblies is put in the transverse groove of the rotating button for pushing the brake block to slowly engage with the gear; and the other one of the two elastic assemblies is put in the longitudinal groove of the rotating button, and falls into one of multiple positioning parts formed on the baseplate to enable the rotating button to obtain stable positioning effect.

Description

Spanner

Technical field

What the present invention relates to spanner turns to location technology.

Background technology

Known Spanner structure, divides into plain type and combined type two kinds.One normally becomes to be integrated with a handle designs by plain type spanner, and head possesses certain shape, performs locking or unscrew operation to some spiro connecting piece.

The head of Combined wrench, the head of the hollow that normally locks with a base plate.Head becomes to be integrated with handle designs, installs a wheel assembly in head.Wheel assembly comprises a gear and a brake block, and gear has a corner post, and corner post passes base plate, in order to connect extraneous spiro connecting piece.Brake block is driven by the turn-button that is arranged on head or spanner, and the inwall of engagement head blocks gear, determines the unidirectional idle running of the related spiro connecting piece of corner post, the torsion of back transfer spanner.

The location structure of turn-button, quite simply.Nothing more than being form a locating slot at turn-button back, locating slot is designed to W shape, and cooperation one is installed on the elastomer of head inwall, produces one-sided beat action.Some embodiment, elastomer promotes steel ball by Compress Spring.In certain embodiment, elastomer promotes shell case by Compress Spring.

Be the rotation of certain angle to turn-button, elastomer transversely (also i.e. key length direction) blocks the recess on a locating slot left side (or right) limit, makes turn-button obtain locating effect.Backwards rotation turn-button, elastomer transversely blocks the recess on the locating slot right side (or left) limit, obtains same locating effect.

Summary of the invention

Goal of the invention of the present invention is: adopt different locating structures, helps brake block meshing gear, has stable locating effect concurrently.

Reaching because of above-mentioned purpose, the invention provides a kind of spanner, it is characterized in that, comprising:

One body, it has an accommodation section and a circular hole, and accommodation section communicates with circular hole, and another side is not but connected with circular hole;

One base plate, it covers accommodation section and circular hole and is combined with bulk junction, just forms one first through hole to accommodation section place at base plate, and base surface forms one second through hole to circular hole place, has multiple location division around the second through hole;

One wheel assembly, it comprises a gear and a brake block, and gear has a corner post, and when the accommodation section of body inserted by gear and brake block, corner post is by the first through hole of base plate;

One turn-button, it has a transverse groove and a cannelure, and this turn-button, through the circular hole of body and the second through hole of base plate, under the condition not departing from body, can opposing body rotate;

Two elasticity assemblies, one of them elasticity assembly inserts transverse groove, and promote brake block and block gear, another elasticity assembly is inserted cannelure and fallen into the location division of base plate.

Wherein: another elasticity assembly described comprises a spheroid and a Compress Spring, and Compress Spring inserts the cannelure of turn-button, the location division that spheroid falls into base plate is promoted.

Wherein: one of them elasticity assembly described comprises a spring and a housing, and the transverse groove of turn-button inserted by spring, heads on body contact brake block.

Wherein: this body has a head and a lever, and described accommodation section is formed in head, and described circular hole runs through head and adjoins with lever.

Wherein: this accommodation section comprise communicate with each other a hole, an operating room and a kerve; Described hole is positioned at head top, and it is not connected with circular hole; Described operating room is positioned at head, and it communicates with circular hole, in order to receive gear and brake block; Described kerve is positioned at bottom head, and it contains operating room and circular hole, in order to hold the base plate that shape roughly conforms to.

Wherein: this accommodation section also has a recess, recess is absorbed in head wall next-door neighbour kerve place, allows a protuberance being formed at floor peripheral to insert recess.

Wherein: this location division is formed at the ball-and-socket of base plate, groove or hole, and the diameter of ball-and-socket, groove or hole is less than width or the diameter of elasticity assembly.

So, elasticity assembly longitudinally bestows active force to base plate, contribute to turn-button and obtain stable locating effect, so that brake block is engaged in gear effectively.

Then, based on the embodiment that graphic detailed description is relevant, technology, means and effect of adopting are described, believe above-mentioned purpose of the present invention, structure and feature, when can by a deep and concrete understanding.

Accompanying drawing explanation

Fig. 1 is the exploded view of spanner one of the present invention preferred embodiment;

Fig. 2 is the sectional view of spanner local combination;

Fig. 3 is the plane cut open along the A-A line of Fig. 2;

Fig. 4 is the sectional view of another angle of Fig. 2.

Description of reference numerals: spanner 10; Fastener 12; Body 20; Head 21; Hole 22; Operating room 23; Kerve 24; Recess 25; Circular hole 27; Lever 28; Accommodation section 29; Wheel assembly 30; Steel ball 31; Gear 32; Control knob 34; Protrusion 36; Corner post 38; Brake block 40; Tooth 42; Breach 44; Base plate 50; Protuberance 52; First through hole 54; Second through hole 56; Location division 58; Turn-button 60; Right cylinder 61; Transverse groove 62; Caulking groove 63; Cannelure 64; Spring 72; Housing 74; Compress Spring 76; Spheroid 78.

Detailed description of the invention

Refer to Fig. 1, Fig. 2, the concrete structure of illustrating spanner 10 is made up of body 20, wheel assembly 30, base plate 50, turn-button 60 and two elasticity assemblies, transmits a torsion in a manual manner to spiro connecting piece, as nut, bolt and sleeve etc.

This body 20 has head 21 and a lever 28, and the two is designed to be integrated.Head 21 general flat, form certain height fall between its end face and lever 28.Form accommodation section 29 and a circular hole 27 at head 21, accommodation section 29 communicates with circular hole 27, and another side is not but connected with circular hole 27.Described circular hole 27 is through head 21 height lower.

This accommodation section 29 sequentially divides into hole 22, operating room 23 and a kerve 24 from top to bottom, and three communicates with each other.Described hole 22 is positioned at head 21 end face, and it is not connected with circular hole 27.Operating room 23 is positioned at inside head 21 and communicates with circular hole 27, and it is wider away from circular hole 27 place, more near circular hole 27, and width narrower (referring to Fig. 4).Kerve 24 is absorbed in head 21 bottom surface, and its depressed range contains operating room 23 and circular hole 27, and forms a recess 25 at head 21 wall next-door neighbour kerve 24 place.At the present embodiment, recess 25 is deep-slotted chip breakers.In some embodiment, recess 25 can be rectangular channel.

This base plate 50 shape and kerve 24 roughly equal, its periphery forms a protuberance 52.Base plate 50 middle part has one first through hole 54 and one second through hole 56, first through hole 54 diameter to be greater than the second through hole 56, and forms two location divisions 58 around the second through hole 56.At the present embodiment, each location division 58 refers to the ball-and-socket being formed at base plate 50.Some embodiment, each location division 58 can be groove or hole, and hole diameter is less than width or the diameter of elasticity assembly.

With the recess 25 of protuberance 52 insertion head 21, add upper plate 50 and insert kerve 24, by one of modes such as riveted joint or screw lock, allow base plate 50 and body 20 combine, support baseboard 50 keeps flat condition.This moment, the first through hole 54 just to operating room 23, second through hole 56 of head 21 facing to circular hole 27.

This wheel assembly 30 is made up of a gear 32 and a brake block 40.Wherein, this gear 32 end face protrudes a protrusion 36, and protrusion 36 central authorities are control knobs 34, inside force-applied press-in protrusion 36.This gear 32 bottom surface extends a corner post 38 vertically, and corner post 38 is design in quadrangle, exposes the local volume of a steel ball 31.In response to the pressing action of control knob 34, steel ball 31 is allowed to return corner post 38 inner.Certainly, the action that control knob 34 playbacks (also namely rising to original position), still can allow steel ball 31 local expose outside corner post 38.

When the operating room 23 of head 21 inserted by gear 32, corner post 38 by the first through hole 54 and local stretch out outside base plate 50.Meanwhile, protrusion 36 is limited to the hole 22 of head 21, makes gear 32 must not opposing headers 21 arbitrarily displacement.This moment, control knob 34 exposes to the end face of head 21.

This brake block 40 is just like crescent or half moon shape, and the operating room 23 being placed on head 21 communicates with circular hole 27 and locates.Form some continuous print teeth 42 at brake block 40 towards gear 32 place, brake block 40 back central authorities are absorbed in a breach 44.

Described turn-button 60 is roughly in Racket for table tennis shape, and extend a right cylinder 61 below it, right cylinder 61 has transverse groove 62, cannelure 64 and a caulking groove 63.Described transverse groove 62 is absorbed in right cylinder 61 surface in the horizontal direction, and its notch is towards wheel assembly 30.Described cannelure 64 is absorbed in right cylinder 61 bottom surface, multiple according to right cylinder 61 length direction extension certain depth.Described caulking groove 63 is formed at right cylinder 61 bottom, and the opening of itself and cannelure 64 adjoins.

Insert circular hole 27 with right cylinder 61, until turn-button 60 touches head 21 end face, make right cylinder 61 bottom by the second through hole 56 of base plate 50.This moment, the caulking groove 63 of right cylinder 61 exposes base plate 50, can be blocked by a fastener 12.Because fastener 12 is hampered by base plate 50, so turn-button 60 does not depart from head 21, but can opposing body 20 rotate.

Be understood that from Fig. 3, one of them elasticity assembly comprises spheroid 78 and a Compress Spring 76.Compress Spring 76 inserts the cannelure 64 of turn-button 60, and the bottom surface of cannelure 64 is withstood in its one end, and the other end promotes the location division 58 that spheroid 78 falls into base plate 50, produces clip effect, obtain stable locating effect to turn-button 60.

Then see Fig. 4, another elasticity assembly comprises spring 72 and a housing 74, and housing 74 is just like be enclosed within spring 72 one end as shell case.Spring 72 one end props up bottom transverse groove 62, and the other end heads on the breach 44 that housing 74 contacts brake block 40, rotates in response to turn-button 60, promotes brake block 40 and blocks gear 32 lenitively.

More than illustrate just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection scope of the present invention.

Claims (7)

1. a spanner (10), is characterized in that, comprising:

One body (20), it has an accommodation section (29) and a circular hole (27), and accommodation section (29) communicate with circular hole (27), and another side is not but connected with circular hole (27);

One base plate (50), it covers accommodation section (29) and circular hole (27) and combines with body (20), just one first through hole (54) is formed to accommodation section (29) place at base plate (50), base plate (50) forms one second through hole (56) in the face of circular hole (27) place, and the second through hole (56) has multiple location division (58) around;

One wheel assembly (30), it comprises a gear (32) and a brake block (40), gear (32) has a corner post (38), when gear (32) inserts accommodation section (29) of body (20) with brake block (40), corner post (38) is by first through hole (54) of base plate (50);

One turn-button (60), it has a transverse groove (62) and a cannelure (64), the circular hole (27) of this turn-button (60) through body (20) and second through hole (56) of base plate (50), under the condition not departing from body (20), can opposing body (20) rotate;

Two elasticity assemblies, one of them elasticity assembly inserts transverse groove (62), promote brake block (40) and block gear (32), another elasticity assembly is inserted cannelure (64) and is fallen into the location division (58) of base plate (50).

2. spanner according to claim 1, it is characterized in that: another elasticity assembly described comprises a spheroid (78) and a Compress Spring (76), Compress Spring (76) inserts the cannelure (64) of turn-button (60), promotes the location division (58) that spheroid (78) falls into base plate (50).

3. spanner according to claim 1 and 2, it is characterized in that: one of them elasticity assembly described comprises a spring (72) and a housing (74), the transverse groove (62) of turn-button (60) inserted by spring (72), heads on housing (74) contact brake block (40).

4. spanner according to claim 1, it is characterized in that: this body (20) has a head (21) and a lever (28), described accommodation section (29) is formed in head (21), and described circular hole (27) runs through head (21) and adjoins with lever (28).

5. spanner according to claim 4, is characterized in that: this accommodation section (29) comprise communicate with each other a hole (22), an operating room (23) and a kerve (24); Described hole (22) is positioned at head (21) top, and it is not connected with circular hole (27); Described operating room (23) is positioned at head (21), and it communicates with circular hole (27), in order to receive gear (32) and brake block (40); Described kerve (24) is positioned at head (21) bottom, and it contains operating room (23) and circular hole (27), in order to hold the base plate (50) that shape roughly conforms to.

6. spanner according to claim 5, it is characterized in that: this accommodation section (29) also have a recess (25), recess (25) is absorbed in head (21) wall next-door neighbour kerve (24) place, allows a protuberance (52) being formed at base plate (50) periphery to insert recess (25).

7. spanner according to claim 1, is characterized in that: this location division (58) are formed at the ball-and-socket of base plate (50), groove or hole, and the diameter of ball-and-socket, groove or hole is less than width or the diameter of elasticity assembly.