CN2320736Y - Opening and shutting structure of number padlock - Google Patents

Abstract

The utility model provides an opening and shutting structure of a number padlock, comprising a lock shell, a number wheel group, a lock rod and a shaft sleeve. The utility model has a new structure that a pressing block is extended in the through hole of the lock shell, and the middle section of the pressing block is pivoted with the pivot shaft of the lock shell. The upper part of the pressing block is a swinging arm which forms a shutting state with a lock hook, and the lower part of the pressing block is a pushing body which contacts the contacting plate of the lock rod. When the right number is dialed, the pushing body is pressed, and the swinging arm is reversely opened outwards. The utility model has the advantages that the swinging arm corresponds to the finger which is pressed on the pushing body, which forms a block. The finger can be prevented from sliding to the opening of the lock hook. The clamping damage is avoided, and the safety performance is increased.

Description

The on-off structure of combination lock

The utility model is relevant with padlock, the on-off structure of specifically a kind of simple operation and the combination lock that do not jam a finger.

Visible on the market a kind of combination lock, the user press...withes one's finger the pressure inside rotation of one mobile locking bar and separates with latch hook, and then reach the purpose that padlock is hooked in object or takes off from object, but, when finger presses is operated, because mobile locking bar encloses direction and presents skewed in latch hook, make the easy slippage of finger and blocked the opening of latch hook, cause and use inconvenience, and easily take place to point when locking bar resets by latch hook, locking bar cramping or when padlock shifts near object, injure finger because of object collision, its main cause is that promptly finger presses position and latch hook opening are positioned at homonymy and quite close, simultaneously, the incline direction that presents of finger presses hour locking lever is easy to towards the slippage of latch hook opening finger.

The purpose of this utility model is to provide a kind of on-off structure of combination lock, and the briquetting that its mat is located at the waist side cooperates swing arm, is stopped finger when making the open and close latching operation to the slippage of latch hook opening, to improve safety.

The technical solution of the utility model is: a kind of on-off structure of combination lock, consist predominantly of a lock housing, one number wheels, the number wheels be horizontally set with in lock housing and with a locking bar, several axle sleeves are formed locking mechanism, the curved latch hook of establishing on this lock housing one side direction, opposite side is provided with an open-work, it is characterized in that: a briquetting stretches in the open-work of lock housing, this briquetting stage casing has an axis hole to be articulated on the pivot of lock housing, this briquetting top combines closed for swing arm and this latch hook, this briquetting below system provides the body that pushes away that hand pushes, this follow block that pushes away body and locking bar is inconsistent, when the numeral of number wheels was identical with predetermined number, briquetting was that the center is rotated and made this swing arm oppositely be the unlatching shape outwardly with this pivot.

Be described further below in conjunction with embodiment of the present utility model and accompanying drawing thereof.

Fig. 1 is the three-dimensional exploded view of the utility model embodiment.

Fig. 2 is the sectional view after each component assembling among Fig. 1 (a sealed shape).

Fig. 3 is the sectional view after each component assembling among Fig. 2 (a unlatching shape).

Fig. 4 is an A-A sectional drawing among Fig. 3.

Padlock illustrated in figures 1 and 2 mainly comprises a lock housing 10, number wheels 20 and a latch hook 30.Wherein, this lock housing 10 is the hollow form housings that formed by one first shell wall 11, the 12 involutory windings of one second shell wall, this first shell wall 11 laterally sets two dividing plates 111, in view of the above in these first shell wall, 10 medial areas every forming three sinking space 112, this each dividing plate 111 holds edge 113 in what central part caved in an arcuation, this first shell wall 11 in a side wall also correspondence be recessed to form one and hold edge 114 in addition; A plurality of axle sleeves 21 of these number wheels 20 respectively pivot across this hold edge 113, this holds edge 114 in addition; This each axle sleeve 21 pivot respectively is through at the mesopore 221 of a character wheel 22, and this axle sleeve 21 forms a flange 211 in an end radial dilatation, and this axle sleeve 21 protrudes out a projection 212 in the side face book office and links to each other with these flange 211 one; This character wheel 22 is established the literary composition numeral (as: Arabic numerals or English alphabet) that supplies interpretation in the rim faces ring, and the rim faces of this character wheel 22 nick between each civilian numeral forms an arrival slot 222, again, these mesopore 221 hole walls are provided with annular distance 223 in a side, this annular distance 223 sets a plurality of card bodies in perisporium, respectively block between the body in this in view of the above and form draw-in groove 224 and cooperate, and these draw-in groove 224 numbers are identical with these arrival slot 222 numbers with this projection 212; This axle sleeve 21 is provided with perforation 213, this 213 hole walls depression of boring a hole has caulking groove 214, and there is an arc groove 215 to be positioned at this 213 hole wall book offices of boring a hole, this this perforation 213 of axle sleeve 21 mats must penetrate for a locking bar 23, these locking bar 23 peripheries are provided with respect to this each axle sleeve 21 and agree with body 231 and protruding abdomen 232, and have a follow block 233 to be located at this locking bar 23 1 ends, and and this locking bar 23 wears a spring 24, this spring 24 is between this follow block 233 and adjacent this axle sleeve 21; The new construction of present embodiment is: this first shell wall 11 is established a pivot 115 and a briquetting 40 middle sections in the opposite side place of this latch hook 30 axis hole 41 articulates, this briquetting 40 is generally curved, this briquetting 40 in these pivot 115 1 sides for push away body 42, opposite side is swing arm 43, this pushes away body 42 and reclines with this follow block 233; In addition, this first and second shell wall 11,12 is provided with a recessed edge in a side, in view of the above, these first and second shell wall 11,12 involutory backs that join form an open-work 13 in these lock housing 10 1 sides, the press section 44 that supplies this briquetting 4O outside is by being exposed to outside this lock housing 10, this is pressed arm 43 and extends to this latch hook 30 end directions, and this latch hook 30 is terminal that embedding is stretched in these swing arm 43 ends and combined closed.This lock housing 10 runs through this first and second shell wall 11,12 and is provided with chain hole 14, this first shell wall 11 is convexly equipped with a plurality of bond posts 116 in inside, this second shell wall 12 runs through in these sinking space 112 corresponding positions and is provided with three fenestras 121, and cooperate this bond post 116 to set up a plurality of trepannings 122 separately, this each bond post 116 wears this each trepanning 122 respectively, only forms this lock housing 10 for this first and second shell wall 11,12 of riveted; One shell fragment 50 is arranged in these first shell wall, 11 inner edge tanks 117, and this shell fragment 50 is in the catch 51 that is extended with three inclinations with lateral buckling, and this catch 51 corresponds respectively to these arrival slot 222 places of this each character wheel 22.

During combination, at first this axle sleeve 21 is set in respectively in this mesopore 221 of this character wheel 22, makes these projection 212 assembly of annular distance 223 draw-in grooves 224 with this axle sleeve 21 of this character wheel 22, only be able to synchronous revolution with this axle sleeve 21 for this character wheel 22; This locking bar 23 wears this spring 24 earlier, then be set in this perforation 213 of this each axle sleeve 21 more in regular turn, and make this agree with body 231 to cooperate with this caulking groove 214 of this axle sleeve 21, this protruding abdomen 232 cooperates with this arc groove 215 of this axle sleeve 21, and this each character wheel 22 is arranged in respectively in this each sinking space 112, and this each axle sleeve 21 sets respectively and is cross-placed on this and respectively holds edge 113, this holds edge 114 in addition, get in this tank 117 of this first shell wall 11 and vertically insert this shell fragment 50, simultaneously, the most advanced and sophisticated elasticity of this each catch 51 is embedded in this arrival slot 222 of this character wheel 22, provide when rotating this character wheel 22, be able to according to and form a plurality of paragraph fastenings and cause the effect of rotating segmentation; Then, this briquetting 40 is placed in this pivot 115,115 pivots of this pivot are entered in this axis hole 41, and this this open-work 13 of press section 44 mats is exposed to outside this lock housing 10, only must swing for the heart according to this pivot 115 for pushing these press section 44 these briquettings 40 of control; At last, this first and second shell wall 11,12 is involutory, utilizes this each bond post 116 to wear this each trepanning 122 respectively, form this lock housing 10 for this first and second shell wall 11,12 of riveted.

Can the foregoing description all be oppress these locking bar 23 displacements through this briquetting 40 to be controlled when the open and close latching operation; Please cooperate and consult Fig. 2, when this locking bar 23 is positioned at right positions, this of these locking bar 23 peripheries agrees with body 231 and this protruding abdomen 232, can't be simultaneously involutory this caulking groove 214 of any one this axle sleeve 21, during this arc groove 215, will stop this locking bar 23 to left dislocation, so, work as password bad, just stir this character wheel 22 and this axle sleeve 21 of interlock turns round synchronously, when the civilian combination of numbers of resultant this character wheel 22 was not preset password, this locking bar 23 promptly can't be inserted in this perforation 213 of this axle sleeve 21, as long as any this axle sleeve 21 can't agree with body 231 for this of this locking bar 23, this protruding abdomen 232 embeds, promptly can make this locking bar 23 be stuck in the right side and can't displacement, at this moment, even if push this peace splenium 44, this pushes away body 42 still can't pass this locking bar 23 displacements, and presents the snap close state.

See also Fig. 3, Fig. 4, when each position, this locking bar 23 surface with this agree with body 231, this protruding abdomen 232 can the while corresponding this caulking groove 214 of this axle sleeve 21, (dialling the civilian combination of numbers of revolving this character wheel 22 is the state of preset password during this arc groove 215, as shown in Figure 4), as long as push this press section 44, this pushes away body 42 and promptly is able to according to this pivot 115 for heart rotation and then pass this locking bar 23 displacements, and this swing arm 43 promptly according to and outwards swing, and between these swing arm 43 ends and this latch hook 30, form the slit, as shown in Figure 3, reach the purpose of unblanking.

Advantage of the present utility model is: this pivot 115 is between this swing arm 43 and this press section 44, satisfying owing to inwardly pushing impels this swing arm 43 outwards to swing, this swing arm 43 is with respect to the finger that presses on this press section 44, formed and stopped, and prevent that finger to these latch hook 30 opening slippages, having improved safety to avoid jamming a finger.

Claims (1)

1. A kind of on-off structure of combination lock, consist predominantly of a lock housing, one number wheels, the number wheels be horizontally set with in lock housing and with a locking bar, several axle sleeves are formed locking mechanism, the curved latch hook of establishing on this lock housing one side direction, opposite side is provided with an open-work, it is characterized in that: a briquetting stretches in the open-work of lock housing, this briquetting stage casing has an axis hole to be articulated on the pivot of lock housing, this briquetting top combines closed for swing arm and this latch hook, this briquetting below system provides the body that pushes away that hand pushes, this follow block that pushes away body and locking bar is inconsistent, when the numeral of number wheels was identical with predetermined number, briquetting was that the center is rotated and made this swing arm oppositely be the unlatching shape outwardly with this pivot.

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