CN2926409Y - Telescopic key structure - Google Patents

Abstract

A structure of an expansion key is disclosed, comprising an outer shell in which a casing is arranged. The casing is able to position by shrinking inwardly and fast-extension outwardly, at the same time, a key bar is arranged in the casing, and a compressing spring is arranged on the key bar which can push the key bar inward elastically at the right time and go back into the casing then. The casing and the inside end of the key bar are separately provided with a pearl-shaped groove and an embedded pearl which can be salient, when the key bar extends and presses the compressing spring, the embedded pearl and the groove can be positioned by embedding into each other, which makes the key bar in a state of prominent position. So, the expansion key has the two segment expansion characteristics of the casing and the key bar, thus applying to lockset with different depth of keyhole.

Description

Flexible Key structure

Technical field

The utility model system is relevant with a kind of flexible key, more detailed it, be meant a kind of two-part expansion performance that has especially, can be for the lockset use of the different lockhole degree of depth, and have the flexible Key structure of complete closing function.

Background technology

Along with science and technology is maked rapid progress, traditional lockset and key structure are also and then constantly improved and are weeded out the old and bring forth the new, except promoting ease of use, also constantly strengthening thief-proof function, therefore, there is different lockset of all kinds to occur with the key structure of collocation mutually, common person such as flexible key structure and lockset thereof, promptly is to utilize lockhole darker on the lockset, the key structure design that collocation is long is to improve thief-proof difficulty of unblanking.

Yet, the flexible key of known common cooperation lockset, though have Telescopic, but still belong to the flexible design of unistage type, so only can provide the lockset of the single kind of lockhole degree of depth to use, cause key to be extensive use of, use effect and reduce it.In addition, the key portion of this flexible key tip in order to open, also since fully retraction fold, and be naked state.Except that aesthetic property is affected, this key portion also damages because of colliding accidentally easily, simultaneously, because the edge of this key portion is often comparatively sharp, so also easy scratch skin, or destroy cloth clothing or article, and then cause user's puzzlement and inconvenience, all be that common flexible key is demanded improvements urgently at present.

The utility model content

Main purpose of the present utility model is to provide a kind of flexible Key structure, has the two-part expansion performance of sleeve pipe and key bar, and is suitable for the lockset of the different lockhole degree of depth.

To achieve these goals, the technical solution of the utility model is: a kind of flexible Key structure is to include:

One shell, its inside has a tank, this tank is formed with an opening at the shell end, in addition, this shell has a relative the first side wall and second sidewall, be formed with a spacing groove on this first side wall, be connected with inner tank, position, the rough stage casing of the internal face of this second sidewall then is formed with an elastic protrusion;

One sleeve pipe, has a guide sliding part, and one from hollow tube portion that the guide sliding part one is extended, this guide sliding part system is embedded at the tank inside of shell, and in tank, doing, outer slippage, simultaneously, but this guide sliding part one side wall surface is equipped with the locating piece of an elastic protrusion, in the spacing groove of shell, make locating slip, in tank, the mutual elasticity inlay card of outer arbitrary side position location, this hollow tube portion has a chute in addition, and is provided with a pearl groove in the position, the rough stage casing of tube wall of opposite shell second sidewall, be connected with inner chute, relative with elastic protrusion on shell second sidewall;

One key bar, have an outboard end and a medial extremity, be formed with a key portion on this outboard end, this medial extremity then is embedded at the chute inside of sleeve pipe, and in chute, make inside and outside locating slip, and, but a side of the relative sleeve pipe pearl of this medial extremity groove is equipped with the seed pearl of an elastic protrusion, locate with the mutual inlay card of the pearl groove of sleeve pipe, and be subjected to the pearl groove of the past interior extruding disengaging sleeve pipe of elastic protrusion on shell second sidewall;

One compression spring is to be set in the key bar outside, and two ends respectively clip be limited between key bar medial extremity and sleeve pipe chute end openings, elasticity pushes against the key bar medial extremity.

This shell system docks institute mutually by one first housing and one second housing and forms.

This first housing is provided with most relative hook grooves with the docking site of second housing, links by the mutual fastener of a hook nail respectively.

This first housing and second housing system are made into integration by plastic material respectively.

One-body molded on this first housing have this spacing groove, then is formed with this elastic protrusion on this second housing.

One-body molded on this first housing have this spacing groove, and first housing is positioned at and respectively is concaved with a location groove on the two side interior sidewall surface of the inside and outside end of spacing groove, respectively for the locating piece inlay card location of sleeve pipe.

Position, the rough stage casing of second sidewall outside wall surface of this shell body is provided with a concave surface, be formed with the notch of a reservation shape on this concave surface, and set on the concave surface and be fixed with a cover plate, folder is established and is positioned with an elastic parts between this cover plate and concave surface, simultaneously, the relative notch of this elastic parts at least a portion, and form this elastic protrusion.

This elastic parts is the metal sheet of a tool elastic deflection.

This metal sheet has an arch position, in order to form this elastic protrusion.

Guide sliding part one side of this sleeve pipe is formed with a groove, these inside grooves two sides respectively are provided with a spring tank, the ccontaining spring of difference, this locating piece has a central spud and the location alar part that extends from two side one in addition, be embedded at respectively in the groove of guide sliding part, and it is spacing by the mutual inlay card of spacing groove of central spud and shell, again, this alar part inboard, location respectively is concaved with a spring tank, replaced by spring, and be positioned at the mutual inlay card of the set detent of inside and outside end two sides of spacing groove location with shell.

The inner chute internal face of the hollow tube portion of this sleeve pipe has two relative Ka Gou, and this key bar medial extremity outside wall surface then is provided with two relative fixture blocks, is embedded mutually with the Ka Gou of sleeve pipe, makes all circular directions with the restriction key bar and rotates.

The hollow tube portion of this sleeve pipe is positioned at the chute opening part and is installed with a ring, in order to replace spacing compression spring opposite end.

This key bar further includes a body and a connecting piece, and this system of key portion is formed at the outboard end of this body, and this connecting piece system wears the medial extremity that is fixed in body, in order to replace the opposite end of spacing compression spring.

Be formed with a Plug Division and a slot that can wear the location mutually between this body medial extremity and connecting piece respectively, simultaneously, this Plug Division is provided with a screw, be provided with a perforation that is through to internal slots on this connecting piece relatively, solid for bolt-through perforation back with the mutual spiral shell of screw, and connecting piece is fixed on the Plug Division.

The hollow tube portion predetermined position of this sleeve pipe has more provided a through hole, penetrates thus for the bolt on the connecting piece.

Be concaved with a spring tank on this connecting piece, and inserted a spring in the spring tank, replace this seed pearl in order to elasticity.

This connecting piece outside wall surface one projection has two relative fixture blocks, and the inner chute internal face of the hollow tube portion of this sleeve pipe then is respectively equipped with two relative Ka Gou, and is spacing for the relative inlay card of fixture block of connecting piece.

Also be able to directly be formed with the ccontaining slippage of key bar of guide sliding part in this shell for the rear end.

The locating piece and the mutual inlay card of the detent in the shell location that have elastic compression on this guide sliding part.

Key structure provided by the utility model owing to have the two-part expansion performance of sleeve pipe and key bar, therefore, can make this flexible key be applicable to the lockset of the different lockhole degree of depth, and then improve the broad applicability of product; Simultaneously and since this sleeve pipe and key bar all fully retraction collapse in the shell, so also effective reduced volume makes to carry and takes in more conveniently, and can reach effective protection key bar, and prevent key bar scratch skin or effects such as destruction cloth, article.

Description of drawings

Fig. 1 is that the flexible key of the utility model is in the outward appearance constitutional diagram of collapse state.

Fig. 2 is the three-dimensional exploded view of the flexible key of the utility model.

Fig. 3 is the horizontal section schematic diagram of the flexible key of the utility model.

Fig. 4 is the longitudinal profile schematic diagram of the flexible key of the utility model.

Fig. 5 is flexible another longitudinal profile schematic diagram of key of the utility model.

Fig. 6 is flexible another horizontal section schematic diagram of key of the utility model.

Fig. 7 is that the flexible key of the utility model is in the part section schematic appearance of projection state.

Fig. 8 is the inlay card positioning states schematic diagram of the utility model key bar seed pearl and sleeve pipe pearl groove.

Fig. 9 is that the flexible key of the utility model is in the horizontal section schematic diagram of projection state.

Figure 10 is the schematic diagram of another embodiment of the utility model when folding.

Figure 11 is the schematic diagram after another embodiment of the utility model releases.

The specific embodiment

At first, see also Fig. 1 to Fig. 3, the utility model is a kind of flexible Key structure preferred embodiment, and this flexible key consists predominantly of a shell 10, a sleeve pipe 20, a key bar 30 and a compression spring 40; Wherein:

This shell 10 further includes first housing 11, second housing 12 that a plastic material is made into integration, most hook nail 13, an elastic parts 14 and a cover plate 15 that a plastic material is made into integration; Wherein, this first housing 11 and second housing 12 respectively are formed with roughly similar the first side wall 111 of contour shape and one second sidewall 121, and, this the first side wall 111 and second sidewall, 121 opposite sides respectively are formed with a groove 112,122, when being docked mutually with second housing 12, first housing 11 defines the opening 17 that a tank 16 and is communicated with tank 16, simultaneously, this first housing 11 is concaved with most relative hook grooves 113 respectively with the docking site of second housing, 12 all sides, 123, can locate for these hook nail 13 fasteners, and then with first, two housings 11,12 fastener bindings each other; In addition, the one-body molded spacing groove 114 that a horizontally set is arranged on the first side wall 111 of this first housing 11, can be connected with inner tank 16, and in the spacing groove 114, respectively be concaved with a location groove 115 on the two side interior sidewall surface of outer end, position, second sidewall, the 121 rough stage casing outside wall surface of second housing 12 then is concaved with a concave surface 124, as shown in Figure 4, be through with the notch 125 of a suitable shape in concave surface 124 central parts, after being placed in concave surface 124 for this elastic parts 14, its at least a portion can be with respect to notch 125, and form an elastic protrusion 141, simultaneously, can set by this cover plate 15 and be fixed on the concave surface 124, be positioned 124 of cover plate 15 and concave surfaces and elastic parts 14 inserted and put, wherein, the elastic parts 14 of present embodiment is the metal sheet of a tool elastic deflection, and Yu Yiduan is formed with an arch position, makes this arch position just can be toward the interior notch 125 that protrudes in relatively to form this elastic protrusion 141; Again, present embodiment is more respectively at the in addition end at the relative arch of metal sheet position, and concave surface 124 opposite sides are provided with the locating hole 142 and the reference column (not shown) of buckle location relatively, can make things convenient for the metal sheet installing and locating on concave surface 124.

This sleeve pipe 20 further includes ring 26 in a guide sliding part 21, a hollow tube portion 22 from the extension of guide sliding part 21 one, two springs 23, two seed pearls 24, a positioning block 25 and; Wherein, this guide sliding part 21 is to be embedded at shell 10 tanks 17 inside, and can make inside and outside slide displacement in tank 17, and simultaneously, these guide sliding part 21 1 sides are concaved with a groove 211, and these groove 211 inner two sides respectively are provided with a spring tank 212; These hollow tube portion 22 cordings have a chute 221, and the position, the rough stage casing of tube wall of opposite shell 10 second sidewalls 121 is provided with a pearl groove 222, can be connected with inner chute 221, simultaneously, this pearl groove 222 is can be in time relative with elastic protrusion 141 on second sidewall 121, in addition, these hollow tube portion 22 inner chute 221 internal faces have two relative card ditches 223, and are provided with a through hole 224 in hollow tube portion 22 near guide sliding part 21 places; This spring 23 is ccontainingly respectively to be positioned in the spring tank 212 of guide sliding part 21; These locating piece 24 cordings have a central spud 241 and the location alar part 242 that extends from two side one, can be respectively in order in the groove 211 that is embedded at guide sliding part 21, and can be spacing with the spacing groove 114 mutual inlay cards of shell 10 by central spud 241, and, these location alar part 242 inboards respectively are concaved with a spring tank 243, as shown in Figure 5, but ammunition feed spring 23 opposite ends are set the location and are replaced with elasticity, make this location alar part 242 can in time be positioned at the detent 115 mutual inlay card location of spacing groove 114 inside and outside end two sides with shell 10; Should interior ring 25 be to wear the chute opening part that is fixed in hollow tube portion 22.

This key bar 30 further includes a body 31, a connecting piece 32, a spring 33, a seed pearl 34 and a bolt 35; Wherein, these body 31 outboard ends are one-body molded a key portion 311, in order to unlock operation to be provided, and be formed with the Plug Division 312 on a tool plane on medial extremity, and Plug Division 312 is provided with a screw 313; This connecting piece 32 1 ends system is concaved with a slot 321, can plant for body 31 Plug Divisions 312 and locate, and, this connecting piece 32 lateral walls one side is provided with the perforation 322 that always passes to internal slots 321, side is concaved with a spring tank 323 in addition, as shown in Figure 6, more disymmetrical fixture block 324 is arranged in connecting piece 32 lateral wall appropriate location one projections, simultaneously, this connecting piece 32 is can be ccontaining in the inside chute 221 of sleeve pipe 20 hollow tube portions 22, and can slide the location with the card ditch 223 mutual embeddings of chute 221 internal faces, and the rotation that prevents to produce circumferencial direction by two fixture blocks 324 of lateral wall; This spring 33 is can be placed in the spring tank 323 of connecting piece 32 lateral walls, and can support this seed pearl 34 in order to elastic top, make this seed pearl 34 produce the elastic protrusion effect, simultaneously, more can suitably locate with the pearl groove 222 mutual inlay cards of sleeve pipe 20, be subjected to the pearl groove 222 of the elastic protrusion 141 past interior extruding disengaging sleeve pipes 20 on shell 10 second sidewalls 121 as shown in Figure 8, and in time; This bolt 35 is the perforation 322 that can penetrate connecting piece 32 via the through hole 224 of sleeve pipe 20 hollow tube portions 22, and is affixed with the screw 313 mutual screw locks of body 31 again, and connecting piece 32 is fixed on the Plug Division 312 of body 31.

This compresses spring 40, system is set in body 31 outsides of key bar 30, and two ends respectively clip be limited in connecting piece 32 and sleeve pipe 20 chutes 221 open-ended in 25 on ring, can push against key bar 30 connecting pieces 32 in order to elasticity, make key bar 30 produce the effect of contracting in the elasticity.

By for further understanding the effect that the utility model structural feature, application technology means and institute's expection are reached, now the utility model mode of occupation is narrated, believing be able to have more deep and concrete understanding to the utility model therefrom, as described below:

Please consult Fig. 1 to Fig. 3 again, flexible key of the present utility model has complete closing function, when at collapse state, this sleeve pipe 20 is tank 17 inside of complete condensation in shell 10, and since sleeve pipe 20 guide sliding parts 21 on locating piece 24 be subjected at any time inboard spring 23 outward elasticity push against, therefore, can make locating piece 24 2 sides location alar part 242 keep being embedded and located in the detent 115 that shell 10 is arranged in spacing groove 114 inner two sides, and can guarantee that sleeve pipe 20 is subjected to improper external force to do the time spent, still not projection outward.In addition, therefore 30 of this key bars, also can make its local condensation in sleeve pipe 20 chutes 221 inside because medial extremity connecting piece 32 is compressed the elasticity pushing and pressing of spring 40, but fully condensation is in the tank 17 of shell 10, and is in the state that collapses in shell 10 inside fully.

Secondly, the flexible key cording of the utility model has the two-part expansion performance, can be applicable to the lockset that the lockhole depth is different respectively, with first section projection is example, the user only needs the locating piece on sleeve pipe 20 guide sliding parts 21 24 is pushed toward the interior application of force a little, make the inboard spring 23 of locating piece 24 2 sides location alar part 242 compressions, and after inboard local displacement, break away from the detent 115 that shell 10 is positioned at spacing groove 114 inner two sides, afterwards, utilizing the locating piece of pushing 24 to take advantage of a situation again passes toward the outside application of force, can be by of the guiding of locating piece 24 central spud 241 along shell 10 spacing grooves 114, make the sleeve pipe 20 that is arranged in shell 10 inner tanks 17 be able to slide displacement outward, be embedded and located in till shell 10 is positioned at the detent 115 of spacing groove 114 outer ends two sides up to locating piece 24 2 sides location alar part 242, and first section projection finishing flexible key moved, and can be used for the more shallow lockset use of lockhole.In addition, should flexible key be to carry out second section projection again, during operation, as long as the user is again with key bar 30 application of force stretching outward, the inboard connecting piece 32 that allows key bar 30 be arranged in sleeve pipe 20 inner chutes 221 is able to slippage outward and compressing compression spring 40, till the seed pearl 34 of elastic protrusion is located with sleeve pipe 20 hollow tube portions 22 inner pearl grooves 222 mutual inlay cards outward on the connecting piece 32, as shown in Figure 8, can make key bar 30 be embedded and located in the projection state, and the projection that reaches second section is moved, as Fig. 7, shown in Figure 9, and can be used for the darker lockset use of lockhole.

Moreover, flexible key of the present utility model also has complete closing function, during operation, the user only needs the locating piece on sleeve pipe 20 guide sliding parts 21 24 is pushed toward the interior application of force a little, make the inboard spring 23 of locating piece 24 2 sides location alar part 242 compressions, and after inboard local displacement, break away from the detent 115 that shell 10 is positioned at spacing groove 114 outer ends two sides, afterwards, utilizing the locating piece of pushing 24 to take advantage of a situation again passes toward the inboard application of force, can be by of the guiding of locating piece 24 central spud 241 along shell 10 spacing grooves 114, make the sleeve pipe that is stretched in the shell 10 inner tanks 17 20 in the past in slide displacement, be embedded and located in till shell 10 is positioned at the detent 115 of spacing groove 114 inner two sides up to locating piece 24 2 sides location alar part 242.What need special instruction is, when locating piece 24 2 sides location alar part 242 roughly is embedded and located in the detent 115 of shell 10 the inners, this still is in the key bar 30 of projection state, be embedded and located in the seed pearl 34 of sleeve pipe 20 pearl grooves 222 inside on its connecting piece 32, also just can be subjected to the elastic protrusion 141 past interior elasticity push effect on shell 10 second housings 12 elastic parts 14 simultaneously, and the pearl groove 222 of disengaging sleeve pipe 20, at this moment, this key bar 30 can be compressed spring 40 and pass automatically in interior retraction sleeve pipe 20 inner chutes 221 toward interior elasticity, till connecting piece 32 and chute 221 medial extremitys are replaced mutually, therefore, this key bar 30 can reach synchronous with sleeve pipe 20, the effect that folds fast.

Certainly, as Figure 10, shown in Figure 11, also be able to directly be formed with the ccontaining slippage of key bar 30a of guide sliding part 21a in the shell 10 of the present utility model for the rear end, wherein, also have the locating piece 25a and the 115 mutual inlay card location of the detent in the shell 10 of elastic compression on this guide sliding part 21a equally, make it to release for single key bar 30a and use or push back the shell 10 built-in practical effects of putting.

Now by above explanation, can and can reach effect and put in order as follows advantage of the present utility model:

1, the sleeve pipe 20 of the flexible key of the utility model all has Telescopic with key bar 30, therefore, can reach the flexible effect of two-part, make this flexible key be applicable to the lockset of the different lockhole degree of depth, and can use broad applicability and the utilization benefit that improves product.

2, the sleeve pipe 20 of the flexible key of the utility model and key bar 30 all fully retraction collapse in the shell 10, so can use reduced volume, so that it is more convenient that the order use is carried and taken in, in addition, also can prevent key bar 30, especially key portion 311 is exposed, and suffer the external force damaged in collision, simultaneously, also can prevent the careless scratch human body skin in sharper position, key bar 30 key portions, 311 edges, or destroy cloth clothing and article, so that the more convenient and safety of the whole use of order.

3, the flexible key of the utility model utilizes elastic protrusion 141 designs on shell 10 second housings 12, and when sleeve pipe 30 was folded toward interior retraction, this key bar 30 also can fold toward interior synchronously automatically, and can improve speed and the convenience that folds operation.

4, the flexible key of the utility model utilizes first housing, the 11 interior outer ends of shell 10 that detent 115 is set and produces the inlay card positioning design with sleeve pipe 20 locating pieces 24 in good time, can make sleeve pipe 20 be subjected to that external force is improper does the time spent, still can be in the inner or outer end position securely, and unlikely random slip, to reach the stability of using operation or folding.

In sum, the utility model has its splendid progressive practicality in fact in like product, all over looking into domestic and international technical data about this class formation, also finds no identical construction in the document and exists formerly simultaneously.

Yet the above only is the preferable possible embodiments of number of the present utility model, so the equivalent structure that all acts application the utility model manual and claim are done changes, ought to be included in the claim of the present utility model.

Claims (19)

1, a kind of flexible Key structure is characterized in that, is to include:

One shell, its inside has a tank, this tank is formed with an opening at the shell end, in addition, this shell has a relative the first side wall and second sidewall, be formed with a spacing groove on this first side wall, be connected with inner tank, position, the rough stage casing of the internal face of this second sidewall then is formed with an elastic protrusion;

One sleeve pipe, has a guide sliding part, and one from hollow tube portion that the guide sliding part one is extended, this guide sliding part system is embedded at the tank inside of shell, and in tank, doing, outer slippage, simultaneously, but this guide sliding part one side wall surface is equipped with the locating piece of an elastic protrusion, in the spacing groove of shell, make locating slip, in tank, the mutual elasticity inlay card of outer arbitrary side position location, this hollow tube portion has a chute in addition, and is provided with a pearl groove in the position, the rough stage casing of tube wall of opposite shell second sidewall, be connected with inner chute, relative with elastic protrusion on shell second sidewall;

One key bar, have an outboard end and a medial extremity, be formed with a key portion on this outboard end, this medial extremity then is embedded at the chute inside of sleeve pipe, and in chute, make inside and outside locating slip, and, but a side of the relative sleeve pipe pearl of this medial extremity groove is equipped with the seed pearl of an elastic protrusion, locate with the mutual inlay card of the pearl groove of sleeve pipe, and be subjected to the pearl groove of the past interior extruding disengaging sleeve pipe of elastic protrusion on shell second sidewall;

One compression spring is to be set in the key bar outside, and two ends respectively clip be limited between key bar medial extremity and sleeve pipe chute end openings, elasticity pushes against the key bar medial extremity.

2, flexible Key structure as claimed in claim 1 is characterized in that, this shell system docks institute mutually by one first housing and one second housing and forms.

3, flexible Key structure as claimed in claim 2 is characterized in that, this first housing is provided with most relative hook grooves with the docking site of second housing, links by the mutual fastener of a hook nail respectively.

4, flexible Key structure as claimed in claim 2 is characterized in that, this first housing and second housing system are made into integration by plastic material respectively.

5, flexible Key structure as claimed in claim 2 is characterized in that, one-body molded on this first housing have this spacing groove, then is formed with this elastic protrusion on this second housing.

6, flexible Key structure as claimed in claim 2, it is characterized in that, one-body molded on this first housing have this spacing groove, and first housing is positioned at and respectively is concaved with a location groove on the two side interior sidewall surface of the inside and outside end of spacing groove, respectively for the locating piece inlay card location of sleeve pipe.

7, flexible Key structure as claimed in claim 1, it is characterized in that, position, the rough stage casing of second sidewall outside wall surface of this shell body is provided with a concave surface, be formed with the notch of a reservation shape on this concave surface, and set on the concave surface and be fixed with a cover plate, folder is established and is positioned with an elastic parts between this cover plate and concave surface, simultaneously, the relative notch of this elastic parts at least a portion, and form this elastic protrusion.

8, flexible Key structure as claimed in claim 7 is characterized in that, this elastic parts is the metal sheet of a tool elastic deflection.

9, flexible Key structure as claimed in claim 8 is characterized in that, this metal sheet has an arch position, in order to form this elastic protrusion.

10, flexible Key structure as claimed in claim 1, it is characterized in that, guide sliding part one side of this sleeve pipe is formed with a groove, these inside grooves two sides respectively are provided with a spring tank, the ccontaining spring of difference, this locating piece has a central spud and the location alar part that extends from two side one in addition, be embedded at respectively in the groove of guide sliding part, and it is spacing by the mutual inlay card of spacing groove of central spud and shell, again, this alar part inboard, location respectively is concaved with a spring tank, replaced by spring, and is positioned at spacing groove with shell, the mutual inlay card of the detent location that outer end two sides are set.

11, flexible Key structure as claimed in claim 1, it is characterized in that the inner chute internal face of the hollow tube portion of this sleeve pipe has two relative Ka Gou, this key bar medial extremity outside wall surface then is provided with two relative fixture blocks, be embedded mutually with the Ka Gou of sleeve pipe, make all circular directions with the restriction key bar and rotate.

12, flexible Key structure as claimed in claim 1 is characterized in that, the hollow tube portion of this sleeve pipe is positioned at the chute opening part and is installed with a ring, in order to replace spacing compression spring opposite end.

13, flexible Key structure as claimed in claim 1, it is characterized in that this key bar further includes a body and a connecting piece, this system of key portion is formed at the outboard end of this body, this connecting piece system wears the medial extremity that is fixed in body, in order to replace the opposite end of spacing compression spring.

14, flexible Key structure as claimed in claim 13, it is characterized in that, be formed with a Plug Division and a slot that can wear the location mutually between this body medial extremity and connecting piece respectively, simultaneously, this Plug Division is provided with a screw, be provided with a perforation that is through to internal slots on this connecting piece relatively, solid for bolt-through perforation back with the mutual spiral shell of screw, and connecting piece is fixed on the Plug Division.

15, flexible Key structure as claimed in claim 14 is characterized in that, the hollow tube portion predetermined position of this sleeve pipe has more provided a through hole, penetrates thus for the bolt on the connecting piece.

16, flexible Key structure as claimed in claim 13 is characterized in that, is concaved with a spring tank on this connecting piece, and has inserted a spring in the spring tank, replaces this seed pearl in order to elasticity.

17, flexible Key structure as claimed in claim 13, it is characterized in that, this connecting piece outside wall surface one projection has two relative fixture blocks, and the inner chute internal face of the hollow tube portion of this sleeve pipe then is respectively equipped with two relative Ka Gou, and is spacing for the relative inlay card of fixture block of connecting piece.

18, flexible Key structure as claimed in claim 1 is characterized in that, also is able to directly be formed with for the rear end the ccontaining slippage of key bar of guide sliding part in this shell.

19, flexible Key structure as claimed in claim 18 is characterized in that, has the locating piece and the mutual inlay card of the detent in the shell location of elastic compression on this guide sliding part.

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