CN201726963U - Unfolding type buckle - Google Patents

Abstract

The utility model provides an unfolding type buckle, which comprises a buckle base frame and two movable keys, wherein a locking pin is mounted on the buckle base frame, the outer end of the locking pin is provided with at least one convex tooth, the ends of the two movable keys are assembled on the buckle base frame through articulated shafts, the other ends of the two keys are provided with flanges, the flange of each movable key is provided with a locker, which is provided with at least one rotatable locking tooth, and the locking tooth is provided with at least one fixing part which can be fastened on the convex tooth. The utility model can effectively solve the problem that: since the movable keys of the conventional buckle constantly rub the supporting sockets, the outer edges of the movable ends and the supporting sockets are worn, and as a result, the buckle loses the closing locking function; and the unfolding type buckle has the advantages of novelty, high safety performance and convenient opening and closing, and cannot clamp the glandular hair and skin of a user in the process of use.

Description

A kind of expansion bracelet

Technical field

The utility model relates to a kind of fastener, more specifically is meant a kind of expansion bracelet.

Background technology

Up to now the watchband of clock and watch or jewellery buckle mostly be with several draw keys mutually combination affect the head that connects watchband buckle, the nearly back of two stature snappings cramp can be fixed on them on the bearing support, like this with regard to closure bracelet, play the effect of wearing table.On the contrary, opened whole bracelet by the head button of open closed, thereby played the effect of taking off table.

Such bracelet is made up of three parts, a fixed supporting frame, and its two ends connect an end of two draw keys, and the other end of these two draw keys is a movable end, and can do closed and launch to the center of center fixed bearing support and move.When the movable end of these two draw keys was made closed action, the support slot that this fixed supporting frame is compressed into by external force in the movable end both sides reached the purpose of locking bracelet.

Above-mentioned bracelet exists such shortcoming: because the fixed form of movable end is to work by both sides generation frictional force in their both sides and the support slot, obviously must cause wrist-watch after using the regular hour, can cause fatigue like this to the degree of tightness of bracelet, in other words, the wrist-watch table of in the process of using, unavoidably can often wearing, slip out of the hand, exactly because the also frequent degree of tightness of this bracelet, can make movable end and support slot constantly rub, and cause the outer rim of movable end and support slot to wear and tear, thereby cause bracelet to lose closed and locked function.

Cause the forfeiture of the closed and locked function of bracelet for the wearing and tearing that prevent bracelet movable end and support slot, people are on the basis of above-mentioned Fastener structure, add again in addition load onto a cover laterally by, by by the side tangle convex body on the movable end, play preventing because the loosening problem that causes bracelet to open of movable end.Yet so still exist problem because install additional a cover laterally by the width that will inevitably increase bracelet, in addition, these two of operations by process in clamp user's fine hair and skin easily, cause a lot of unnecessary troubles.

Summary of the invention

Main purpose of the present utility model is to provide a kind of expansion bracelet, it can effectively solve that traditional bracelet exists because draw key and support slot constantly rub, cause the outer rim wearing and tearing of movable end and support slot, thereby cause bracelet to lose the problem of closed and locked function, for people provide a kind of do not need laterally by, the expansion bracelet of brand-new, security performance height and conveniently opening and closing.

Another purpose of the present utility model is to provide a kind of user's the fine hair and expansion bracelet of skin in use can not clamped.

For achieving the above object, the technical solution adopted in the utility model is: a kind of expansion bracelet, it comprises bracelet pedestal and two draw keys, wherein, on this bracelet pedestal locking pin is housed, the outer end of this locking pin is provided with at least one double wedge, one end of these two draw keys is assemblied on the bracelet pedestal by joint shaft, the other end of these two draw keys is provided with flange, flange on each part draw key all is provided with locking device, this locking device is provided with at least one rotating locking tooth, and this is provided with at least one above locking tooth can be connected to fixed part on this double wedge.

This flange is provided with and is used for the boring of mount watchband or jewelry band.

Each draw key all is provided with breach, and spring is equipped with in this breach the inside.This locking tooth has stopper slot.

The beneficial effects of the utility model are: the utility model structurally comprises bracelet pedestal and two draw keys, wherein, on this bracelet pedestal locking pin is housed, the outer end of this locking pin is provided with at least one double wedge, one end of these two draw keys is assemblied on the bracelet pedestal by joint shaft, the other end of these two draw keys is provided with flange, flange on each part draw key all is provided with locking device, this locking device is provided with at least one rotating locking tooth, and this is provided with at least one above locking tooth can be connected to fixed part on this double wedge.It can effectively solve that traditional bracelet exists because draw key and support slot constantly rub, cause the outer rim wearing and tearing of movable end and support slot, thereby cause bracelet to lose the problem of closed and locked function, for people provide a kind of brand-new, security performance height, conveniently opening and closing and in use can not clamp user's the fine hair and the bracelet of skin.

Description of drawings

Fig. 1 is an exploded perspective view of the present utility model.

Fig. 2 is the utility model schematic diagram in off position.

Fig. 3 is a locking state sectional structure chart of the present utility model.

Fig. 4 is the interior TV structure figure of Fig. 2 support arm.

Fig. 5 is Fig. 2 locking pin side view.

Fig. 6 is the side view of bracelet pedestal of the present utility model, flange, spring shaft and respective springs.

The specific embodiment

As 1 to Figure 6 shows that a kind of preferable specific embodiment of the present utility model, a kind of expansion bracelet 100 of clock and watch comprises bracelet pedestal 170 and two draw keys 110,120, wherein, this bracelet pedestal 170 is made up of two support arms 172,174, draw key 110,120 is assemblied in the location bending spinning movement of setting to support arm 172,174 on this bracelet pedestal 170, this tape base frame 170 is equipped with locking pin 190

Particularly, the boring of support arm 172 is the boring 111,121 on Fig. 1, and the boring of support arm 174 then is hole 113,123.In addition, all have special shape on the support arm 172,174, be used for accepting an end of locking pin 190, prevent locking pin 190 landings.

This special shape is distributed in support arm 172,174 middle parts substantially, promptly in boring 111 with hole between 121 or hole 113 and hole between 123.

Illustrate support arm 174 and have a shape 180 shown in Fig. 4 amplification, 172 among Fig. 1 then can't see, at these in shape, comprises on the locking pin 190 and all holing.By shown in Figure 1, support arm 172 has been showed the hole 196 on hole 105 and the locking pin 190 at these shape 180 places.

Bracelet 100 is finished after the assembling, and boring 111 and boring 113 are passed by joint shaft 112, and 123 of boring 121 and borings are passed by joint shaft 125.Hole 105,196 and support arm 174 corresponding holes (420 on Fig. 4) are passed by joint shaft 199.Like this, support arm 172,174 gets up by joint shaft 112,125,199 windings, becomes the bracelet pedestal 170 of a stretcher shape.

It should be noted that, joint shaft 112,125 and 199 use only are to be used for illustrating, other forms of combination also fully can reference, can, perforation not fix such as locking pin 190 by being set, can make blind hole and support arm 174 (on Fig. 4 420) respective aperture in its lateral aperture position 105 and pack into bolt, variety of way all can be considered.

Locking pin 190 is provided with two double wedges 192,194, is contained in its outside is used for catching this locational draw key 110,120 in the time of bracelet 100 closures as shown in Figure 1.

One end of this draw key 110 and draw key 120 is assemblied on the bracelet pedestal 170 by joint shaft 112,125, draw key 110,120 is done by joint shaft 112,125 and is turned up and launch action, go thereby in the time of buckle in 100 closures draw key 110,120 folded in the position that support arm 172,174 sets.Therefore, an end of each draw key 110,120 is provided with the hole that can assemble joint shaft 112,125, and the boring of draw key 110 is 112 among Fig. 1, and the boring of draw key 120 is 122.Draw key 110,122 end freely is provided with flange 136,156.Boring 134 is arranged on the flange 136,156 and hole 154 head grain 350 (see figure 3)s that are used for mount watchband or jewelry band, in addition, all be provided with locking device 130,150 on each flange 136,156, locking device 130,150 is provided with at least one rotating locking tooth 132,152.

Locking tooth 132,152 is done joint action with the form of sleeve pipe on joint shaft 135,155, at its flange 136,156 be drilled with hole 134,154 above the locking tooth 132,152.In addition, Fig. 3 has showed the situation of connector 188 when it packs sleeve pipe 155 into of a shape such as pin, such as take the lead (350 among Fig. 3) of wrist-watch or jewellery.

Lock bracelet 100, when locking tooth 132,152 rotates to locking pin 190, be provided with at least one above the locking tooth 132,152 and can be connected to fixed part 138 on the double wedge 192,194.Be illustrated as locking tooth 132 and be provided with and be used for the fixed part 138 of locking, fixed part 138 buckle ins 100 can block on double wedge 194 when closing.

In addition, locking tooth 132,152 all is provided with stopper slot 131,151, limits its stroke when locking tooth 132,152 rotates.Such as, stopper slot 151 can be blocked by draw key 120 when locking pin 190 rotation reaches the preset position limit when locking tooth 152 in Fig. 1.

Fig. 2 is the details of having showed under bracelet 100 locking states in Fig. 1.As shown in Figure 2, when bracelet 100 was closed, flange 136,156 top mutually blocked, and withstands on again on the locking pin 190 simultaneously.

Fig. 2 has also showed joint shaft 135,155 with 134,154 li of the form load holes of sleeve pipe, and this hole beats on body flange 136,156 and locking tooth 132,152.In addition, can be clear that by draw key 120,110 and close locking tooth at 132,152 o'clock how top stopper slot the 151, the 131st blocks work.

Fig. 3 has showed that draw key 110,120 closure states of bracelet 100 in Fig. 1 and Fig. 2 throw a face figure and a partial enlarged drawing 300 longitudinally.Fig. 3 has showed how a watchband is assembled to the situation on the bracelet 100, takes the lead grain 350 to be fixed on flange 156 and the draw key 120 by connector 188.What for example, connector 188 showed is that a pin form is passed joint shaft 155 in the mode of sleeve pipe.

Each draw key 110,120 all is provided with breach 133,153, and the inside is equipped with spring 137,157 and is used for handling spring shaft 139,159.The active force that spring 137,157 is used on the spring shaft is adjustable.Such as shock mount 137,157 can dwindle with a Luo silk or other similar means in the locus of 133,153 li of breach.In addition, the size of spring itself can preliminary election as required, can adopt bigger or opposite than being used in the strength that watchband buckles such as, the spring 137,157 that is used for the jewellery bracelet.

According to application need, spring shaft 139,159 can not need by spring 137,157 on-line operations laterally by.Shown in figure below 300, partial, detailed view is explained.Certainly according to the style needs, bracelet 100 can equip fully one to several by handle locking device 130,150, increase the comfortableness of using bracelet 100 for example to reach, purpose or pure appearance design requirements such as Convenient switch, by can be hidden in flange 136,156 times.

Elaborating below the locking device 130,150, is example with the device with reference to 0 li of local Figure 30.By shown in local Figure 30 0, spring shaft 159 promotes locking tooth 152 by spring 157 manipulations and moves towards locking pin 190.When bracelet pedestal 100 was closed, the fixed position 158 on the locking tooth 152 slided along double wedge 192, at first arrives the position of an icon 158A, presses to spring 157 simultaneously.At the same time, the stopper slot 151 on the draw key 120 is mentioned the position of 151A to the diagram.

Close the position of bracelet 100 when draw key 120 arrives, locking tooth 152 is rotated along joint shaft 155 by spring 157 effects, and fixed position 158 is stuck in 192 li of double wedges, and this location drawing is designated as 158B.Stopping of this rotation is that the action that stops by draw key 120 has been ended fixed position 151 action and obtained, and this location drawing is designated as 151B.

By this reasoning, the principle of opening of bracelet is exactly: spring shaft 159 is handled the locking tooth 152 that spring 157 promotes, and fixed position 158 is unclamped for 192 li from double wedge.In other words, bracelet 100 open that to be fixed position 158 move to the 158A position is got back to the 158B position then again after opening process from the position of 158B, and 151 of stopper slots are to get back to the 151B position after moving to the 151A position from its 151B position.

More direct saying is exactly, and the action of locking tooth 152 is switches of being handled bracelet 100 by the slip of fixed position 158 on locking pin 190.

The hook-type external member that locking tooth 132,152 that Fig. 3 shows and fixed part 138,158 are formed.Other shapes can be accepted and be replenished fully.Be stressed that in addition, the work simplification of stopper slot 131,151 the assembly work amount of locking device 130,150.In addition, the installation of the spring shaft of spring 137,157 does not need to add part spring 137,157 is fixed on 133,153 li of breach, finishes because this function has locking tooth 132,152 oneself to make up.By the above, spacing being stuck on the draw key 110,120 by stopper slot 131,151 rotations of switch realized.The critical point of this rotational action is again pre-determined.

What Fig. 4 showed is the structure of support arm 172,174, is example with support arm 174.As shown in Figure 4, structure 180 is to be used for locating to locking pin 190 (Fig. 1).There is boring 420 to be used for wearing the joint shaft 199 of Fig. 1 on the locking pin 190.In addition, also done the balance of strengthening 410 these positions when being used for bracelet 110 switches on the draw key 174 in the middle part.

Fig. 5 shows the example of locking pin 190, and Fig. 5 has showed the shape in double wedge 192,194 and hole 196

Fig. 6 has showed the assembling of draw key 110,120, with draw key 120 for example.At first, pack into 153 li of breach of spring 157.Pack into 157 li on spring of spring shaft 159 then, the joint shaft 155 of locking tooth 152 usefulness sleeve pipe forms is fixed on the draw key 120.

According to a top specific example, can imagine that this structure can have multiple production program and not influence its function.

Claims (4)

1. expansion bracelet, it is characterized in that: comprise bracelet pedestal and two draw keys, wherein, on this bracelet pedestal locking pin is housed, the outer end of this locking pin is provided with at least one double wedge, one end of these two draw keys is assemblied on the bracelet pedestal by joint shaft, the other end of these two draw keys is provided with flange, flange on each part draw key all is provided with locking device, this locking device is provided with at least one rotating locking tooth, and this is provided with at least one above locking tooth can be connected to fixed part on this double wedge.

2. a kind of expansion bracelet as claimed in claim 1 is characterized in that, this flange is provided with and is used for the boring of mount watchband or jewelry band.

3. a kind of expansion bracelet as claimed in claim 1 is characterized in that each draw key all is provided with breach, and spring is equipped with in this breach the inside.

4. a kind of expansion bracelet as claimed in claim 1 is characterized in that this locking tooth has stopper slot.

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