CN209548711U - Bounce stretching structure and toy - Google Patents

Abstract

This application provides a kind of spring stretching structure and toys, are related to toy technique field, including bottom plate and the expansion bracket that bottom plate side is arranged in；Expansion bracket includes first connecting rod, second connecting rod and third connecting rod, first connecting rod and second connecting rod are rotatablely connected with third connecting rod respectively, the one end of first connecting rod and second connecting rod far from third connecting rod is rotatablely connected with bottom plate respectively, and the angle between first connecting rod and bottom plate is adjusted between 30 °~70 °；Between first connecting rod and bottom plate, and/or, at least one elastic component is set between second connecting rod and bottom plate；It further include that the power mechanism of power is provided for expansion bracket, and the drawstring for connecting expansion bracket and power mechanism；Power mechanism is using motor and governor gear group.The application controls expansion bracket compared with the bounce structure that existing gear is more, energy consumption is high, the direction of motion is single, with the elastic state of drawstring, reduces the use of gear, and optimization spring stretching structure reduces energy consumption, changes ejection direction.

Description

Bounce stretching structure and toy

Technical field

This application involves toy technique fields, more particularly, to a kind of spring stretching structure and toy.

Background technique

When All Saints' Day arrives, bounce spider, and bounce spirit festival personage, and large-scale terrible Jumping toy etc. enjoys great popularity； These Jumping toy can exceed the pop-up of people's will material, to reach the terrified entertainment effect taken sb. aback.

Existing toy applies scissor structure, is subdivided into up-down mechanism respectively, moves forward and backward structure, needs External power supply driving, bulky, speed is slow, isometric with the downward time upwards, isometric with the time backward forward, cannot be suitble to Personalized product variation, and cost is higher, the scissor direction of motion is single, immutable.

Utility model content

In view of this, the application's is designed to provide a kind of spring stretching structure and toy, stretched to change spring The direction of motion and pop-up mode of shrinking structure.

In a first aspect, including bottom plate and the bottom plate side is arranged in this application provides a kind of spring stretching structure Expansion bracket；

The expansion bracket includes first connecting rod, second connecting rod and third connecting rod, the first connecting rod and the second connecting rod It is rotatablely connected respectively with the third connecting rod, the first connecting rod and the second connecting rod one end far from the third connecting rod point It is not rotatablely connected with the bottom plate, and enables the angle between the first connecting rod and the bottom plate between 30 °~70 ° It adjusts；

Between the first connecting rod and the bottom plate, and/or, it is arranged at least between the second connecting rod and the bottom plate One elastic component；

It further include providing the power mechanism of power for the expansion bracket, and for connecting the expansion bracket and described dynamic The drawstring of force mechanisms.

Preferably, the first connecting rod and the third connecting rod are rotatablely connected to form the first tie point, the second connecting rod It is rotatablely connected to form the second tie point with the third connecting rod, define between first tie point and second tie point Distance is A；The first connecting rod and the bottom plate are rotatablely connected to form third tie point, and the second connecting rod and the bottom plate turn Dynamic connection forms the 4th tie point, and defining the distance between the third tie point and the 4th tie point is B；Wherein, A is not Greater than B.

Preferably, the power mechanism includes motor, governor gear group and output shaft；

The output shaft is connect with the drawstring；

The output end of the motor is driven by belt, gear drive or direct-connected mode are defeated with the governor gear group Enter end connection, the output end and the output shaft of the governor gear group are sequentially connected；

It further include retaining mechanism, when the retaining mechanism is in running order, the retaining mechanism makes the output shaft It only being capable of single direction rotation.

Preferably, the retaining mechanism includes mounting plate, adjustable shelf, first gear, second gear and clamp；

The mounting plate and the motor are relatively fixed, the gear shaft of the first gear and the fixed company of the mounting plate It connects；The adjustable shelf and the gear shaft of the first gear, which relatively rotate, to be connected, and the relatively described installation of the adjustable shelf is enable Plate translation；The shaft of the gear shaft of the second gear and the clamp is fixedly connected with the adjustable shelf；First tooth Wheel is engaged with the most final-stage gear of the governor gear group and the second gear respectively；Third tooth is set on the output shaft Wheel, and the second gear is engaged with the third gear；

First torsional spring is set in the shaft of the clamp, one end of first torsional spring is fixedly connected with the clamp, The other end is fixedly connected with the adjustable shelf；Second torsional spring, second torsional spring are set on the gear shaft of the first gear One end be fixedly connected with the mounting plate, the other end is fixedly connected with the adjustable shelf；

The clamp includes at least first position and the second position；When the first gear is rotated to first direction, institute It states clamp and is in the first position, cooperate with the second gear, the second gear is stuck；The first gear to When second direction rotates, the clamp is in the second position, is detached from and cooperates with the second gear, makes the second gear It can be rotated under the drive of the first gear；

First torsional spring, which makes the clamp always, has the trend moved from the second position to the first position.

Preferably, groove is equipped on the clamp, for fixing one end of first torsional spring.

Preferably, the first mounting hole and the second mounting hole are opened up on the adjustable shelf, first mounting hole is for putting One end of first torsional spring is set, second mounting hole is used to place one end of second torsional spring.

It preferably, further include cover board identical with the adjustable shelf shape, the cover board and the adjustable shelf are cooperatively connected；

Wherein, first torsional spring, the clamp, the first gear and the second gear are arranged at the activity Between frame and the cover board.

It preferably, further include wire spool, the wire spool is arranged on the output shaft, and the drawstring is far from described flexible One end of frame is connected on the wire spool.

Preferably, the first connecting rod is connect by first base with the bottom plate, and the second connecting rod passes through the second bottom Seat is connect with the bottom plate；Wherein, the first base and the first connecting rod are rotatablely connected, the second base and described the The connection of two link rotatables.

Second aspect, present invention also provides a kind of toy, including switch, loudspeaker, electron plate and spring stretching structure, institutes The start and stop switched for controlling the power mechanism are stated, the loudspeaker are connect with the electron plate.

Compared with prior art, the application has the beneficial effect that

The application provides a kind of spring stretching structure and toy, including bottom plate and the expansion bracket that bottom plate side is arranged in；It stretches Contracting frame includes first connecting rod, second connecting rod and third connecting rod, and first connecting rod and second connecting rod are rotatablely connected with third connecting rod respectively, The one end of first connecting rod and second connecting rod far from third connecting rod is rotatablely connected with bottom plate respectively, and make first connecting rod and bottom plate it Between angle can be adjusted between 30 °~70 °；The application changes the movement side of expansion bracket by using three-link structure To reach the oblique bullet contractive effect of expansion bracket；Between first connecting rod and bottom plate, and/or, between second connecting rod and bottom plate At least one elastic component is set；The application between second connecting rod and bottom plate by being arranged elastic component, using the elasticity of elastic component, So that expansion bracket realizes bouncing function；Further include the power mechanism of power is provided for expansion bracket, and for connect expansion bracket and The drawstring of power mechanism；In turn, power mechanism controls pop-up and the compression shape of expansion bracket by controlling the elastic state of drawstring State.Single with the scissor direction of motion in the prior art, immutable bounce structure is compared, and is controlled with the elastic state of drawstring Expansion bracket optimizes spring stretching structure, can change the direction of motion and pop-up mode of spring stretching structure, and then realizes oblique Play contraction type.

To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.

Detailed description of the invention

Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.

Fig. 1 shows the first visual angle schematic diagram of spring stretching structure provided by the embodiment of the present application；

Fig. 2 shows the second visual angle schematic diagrames of the stretching structure that bounces provided by the embodiment of the present application；

Fig. 3 shows the third visual angle schematic diagram of spring stretching structure provided by the embodiment of the present application；

Fig. 4 shows the first visual angle schematic diagram of dynamic structure provided by the embodiment of the present application；

Fig. 5 shows the second visual angle schematic diagram of dynamic structure provided by the embodiment of the present application；

Fig. 6 shows the structural schematic diagram of retaining mechanism provided by the embodiment of the present application；

Fig. 7 shows the structural schematic diagram of wire spool provided by the embodiment of the present application.

Icon: 1- bottom plate；2- expansion bracket；21- first connecting rod；22- second connecting rod；23- third connecting rod；3- elastic component；41- Motor；The output end of 411- motor；The input terminal of 421- governor gear group；The output end of 422- governor gear group；423- speed regulation The most final-stage gear of gear set；424- belt pulley；43- output shaft；441- mounting plate；4411- buckle closure；442- adjustable shelf；443- First gear；The gear shaft of 4431- first gear；444- second gear；445- clamp；4451- groove；446- third gear； The first torsional spring of 447-；The second torsional spring of 448-；449- cover board；5- drawstring；6- wire spool；7- first base；8- second base；9- loudspeaker .

Specific embodiment

To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work There are other embodiments, shall fall in the protection scope of this application.

In the description of the embodiment of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, Either the utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure It makes and operates, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used It is described in distinguishing, is not understood to indicate or imply relative importance.

In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" It is complete horizontal, but can be slightly tilted.

In the description of the embodiment of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition Understand the concrete meaning of above-mentioned term in the present invention.

When All Saints' Day arrives, bounce spider, and bounce spirit festival personage, and large-scale terrible Jumping toy etc. enjoys great popularity； These Jumping toy can exceed the pop-up of people's will material, to reach the terrified entertainment effect taken sb. aback.Existing toy application Scissor structure, is subdivided into up-down mechanism respectively, moves forward and backward structure, external power supply is needed to drive, and volume is huge Greatly, speed is slow, isometric with the downward time upwards, isometric with the time backward forward, personalized product cannot be suitble to change, and make Valence higher cost, the scissor direction of motion is single, immutable.Based on this, this application provides a kind of spring stretching structure and objects for appreciation Tool, is specifically described with reference to the accompanying drawing.

As shown in FIG. 1 to FIG. 7, the first visual angle that Fig. 1 shows spring stretching structure provided by the embodiment of the present application shows It is intended to；Fig. 2 shows the second visual angle schematic diagrames of the stretching structure that bounces provided by the embodiment of the present application；Fig. 3 shows this Shen Please spring stretching structure provided by embodiment third visual angle schematic diagram；Fig. 4 shows and moves provided by the embodiment of the present application First visual angle schematic diagram of power structure；Fig. 5 shows the second visual angle schematic diagram of dynamic structure provided by the embodiment of the present application； Fig. 6 shows the structural schematic diagram of retaining mechanism provided by the embodiment of the present application；Fig. 7 shows the embodiment of the present application and is provided Wire spool structural schematic diagram.

This application provides a kind of spring stretching structures, including bottom plate 1 and the expansion bracket 2 that 1 side of bottom plate is arranged in；It is flexible Frame 2 includes first connecting rod 21, second connecting rod 22 and third connecting rod 23, first connecting rod 21 and second connecting rod 22 respectively with third connecting rod 23 rotation connections, the one end of first connecting rod 21 and second connecting rod 22 far from third connecting rod 23 is rotatablely connected with bottom plate 1 respectively, and is made The angle obtained between first connecting rod 21 and bottom plate 1 can be adjusted between 30 °~70 °；

Between first connecting rod 21 and bottom plate 1, and/or, at least one elastic component is set between second connecting rod 22 and bottom plate 1 3；

It further include providing the power mechanism of power, and the drawing for connecting expansion bracket 2 and power mechanism for expansion bracket 2 Rope 5.

It should be noted that expansion bracket 2 is a three-link structure, but three-link includes too many form, thus in order to Realize a preferably spring range, the angle between first connecting rod 21 and bottom plate 1 controls between 30 °~70 °, in turn, the Angle between two connecting rods 22 and bottom plate 1 also just controls between 30 °~70 °, but is not limited solely to this, as long as can be real Existing 2 bouncing function of expansion bracket, can use.

In turn, the position of elastic component 3 includes a variety of situations, such as: elastic component is set between first connecting rod 21 and bottom plate 1 3；Elastic component 3 is set between second connecting rod 22 and bottom plate 1；Between first connecting rod 21 and bottom plate 1 and 22 He of second connecting rod Elastic component 3 is all set between bottom plate 1；In the embodiment of the present application, two elastic components are set between second connecting rod 22 and bottom plate 1 3, and two elastic components 3 are separately positioned on the two sides of second connecting rod 22.

In the embodiment of the present application, second connecting rod 22 is connect with one end of third connecting rod 23, in second connecting rod 22 and bottom plate 1 Between be arranged two elastic components 3, by force analysis it is found that when expansion bracket 2 is ejected, power required for third connecting rod 23 is minimum , to reach labor-saving effect.

The application changes the direction of motion of expansion bracket 2 by using three-link structure, to reach the oblique of expansion bracket 2 Play contractive effect；By the way that elastic component 3 is arranged between second connecting rod 22 and bottom plate 1, using the elasticity of elastic component 3, so that flexible Frame 2 realizes bouncing function；In turn, power mechanism controls the pop-up and compression of expansion bracket 2 by controlling the elastic state of drawstring 5 State；Single with the scissor direction of motion in the prior art, immutable bounce structure is compared, and the application utilizes drawstring 5 Elastic state controls expansion bracket 2, optimizes spring stretching structure, reduces energy consumption, changes the movement side of spring stretching structure To and pop-up mode, and then realize tiltedly play contraction type.

Preferably, first connecting rod 21 and the rotation connection of third connecting rod 23 form the first tie point, second connecting rod 22 and third The rotation connection of connecting rod 23 forms the second tie point, and defining the distance between the first tie point and the second tie point is A；First connecting rod 21 form third tie point with the rotation connection of bottom plate 1, and second connecting rod 22 and the rotation connection of bottom plate 1 form the 4th tie point, definition The distance between third tie point and the 4th tie point are B；Wherein, A is not more than B.

It should be noted that A includes that A is less than B and A equals B two kinds of situations no more than B, when A equals B, expansion bracket 2 with The form spring of parallelogram is flexible；When A is less than B, expansion bracket 2 is bounced flexible in the form of forficiform.In the application reality It applies in example, the distance between each tie point meets A less than B；When A is less than B, the oblique bullet contraction work of expansion bracket 2 can be realized Can, to change the previous single direction of motion.

Preferably, power mechanism includes motor 41, governor gear group and output shaft 43；Output shaft 43 and drawstring 5 connect It connects；

The input terminal that the output end 411 of motor passes through belt transmission, gear drive or direct-connected mode and governor gear group 421 connections, the output end 422 and output shaft 43 of governor gear group are sequentially connected；

It further include retaining mechanism, when retaining mechanism is in running order, retaining mechanism makes output shaft 43 only can be unidirectional Rotation.

It should be noted that 421 connection type of input terminal of the output end 411 of motor and governor gear group includes three kinds of feelings Condition: belt transmissioning mode, gear transmission mode or direct-connected mode；Three kinds of modes have their own characteristics, and adopt in the embodiment of the present application With belt transmissioning mode, how to be arranged as belt transmission, it can be according to the structure choice of toy.

It should be noted that retaining mechanism is there are two state, when retaining mechanism is in running order, retaining mechanism with it is defeated Shaft 43 contact, the direction of rotation of output shaft 43 can be limited so that output shaft 43 only can single direction rotation, to realize winding Tense the effect of drawstring 5；And when drawstring 5 unclamps, retaining mechanism can there are gaps with output shaft 43, and retaining mechanism is at this time Off position.

In the embodiment of the present application, governor gear group is provided with multiple gears, primarily to biggish twisting resistance is provided, Only when twisting resistance is sufficiently large, expansion bracket 2 could be pulled to compressive state；It can according to the actual conditions of the embodiment of the present application Know, governor gear group includes 4 pitch wheels, is described below according to specific structure.

Preferably, retaining mechanism includes mounting plate 441, adjustable shelf 442, first gear 443, second gear 444 and clamp 445。

It should be noted that adjustable shelf 442 is set as triangular structure, one end of clamp 445 can be stuck in gear just Two teeth between.

Mounting plate 441 and motor 41 are relatively fixed, and the gear shaft 4431 of first gear is fixedly connected with mounting plate 441；It is living The gear shaft 4431 of moving frame 442 and first gear, which relatively rotates, to be connected, and adjustable shelf 442 is enable to translate with respect to mounting plate 441；The The gear shaft of two gears 444 and the shaft of clamp 445 are fixedly connected with adjustable shelf 442；First gear 443 respectively with timing gear The most final-stage gear 423 and second gear 444 of wheel group engage；Third gear 446, and second gear are set on output shaft 43 444 engage with third gear 446.

Specifically, one end of mounting plate 441 is arranged in motor 41, welds together with mounting plate 441, wherein timing gear The initial stage gear of wheel group is in such a way that gear is fixedly connected with axis, and its axis passes through mounting plate 441, and then in mounting plate The output end 411 of 441 back side, the fixed setting belt pulley 424 on axis, this belt pulley 424 and motor passes through belt and is driven Connection, to realize that motor 41 rotates, the initial stage gear of governor gear group is followed motor 41 to rotate in the opposite direction, is passed through Meshing relation between each governor gear of governor gear group transfers power to the most final-stage gear 423 of governor gear group On.

In turn, the gear shaft 4431 of first gear is fixedly connected with mounting plate 441, first gear 443 and governor gear group Most final-stage gear 423 engage；The gear shaft 4431 of first gear is arranged on one jiao of adjustable shelf 442, with 442 phase of adjustable shelf To rotation connection, adjustable shelf 442 is rotated around the gear shaft 4431 of first gear, and then enables adjustable shelf 442 Opposite mounting plate 441 translates；The gear shaft of second gear 444 and the shaft of clamp 445 are respectively fixedly disposed at adjustable shelf 442 On other two angle, and first gear 443 is engaged with second gear 444；Third gear 446, and second are set on output shaft 43 Gear 444 is engaged with third gear 446.In turn, pass through the most final-stage gear 423 of governor gear group and nibbling for first gear 443 Conjunction relationship and first gear 443 and second gear 444, the meshing relation between second gear 444 and third gear 446 move Power can be passed on output shaft 43.

First torsional spring 447 is set in the shaft of clamp 445, one end of the first torsional spring 447 is fixedly connected with clamp 445, The other end is fixedly connected with adjustable shelf 442；Second torsional spring 448, the second torsional spring 448 are set on the gear shaft 4431 of first gear One end be fixedly connected with mounting plate 441, the other end is fixedly connected with adjustable shelf 442.

It should be noted that this is the fixed form of the torsional spring in the embodiment of the present application, pass through the first torsional spring 447 and clamp 445 cooperation realizes adjustable shelf 442 far from output shaft 43, i.e. second gear 444 and third gear 446 is disengaged from relationship Movement；By the setting of the second torsional spring 448, realize adjustable shelf 442 close to output shaft 43, i.e. second gear 444 and third gear 446 remain that meshing relation is moved.

Clamp 445 includes at least first position and the second position；When first gear 443 is rotated to first direction, clamp 445 are in first position, cooperate with second gear 444, and second gear 444 is stuck；It is revolved in first gear 443 to second direction When turning, clamp 445 is in the second position, is detached from and cooperates with second gear 444, enables second gear 444 in first gear 443 Drive under rotate；First torsional spring 447 makes clamp 445 have the trend moved from the second position to first position always.

It should be noted that first position and the second position herein is all that second gear 444 and third gear 446 are kept The position of clamp 445 when meshing relation is moved, in this process, clamp 445 the second position and first position it Between move repeatedly, and clamp 445 at this time cuts little ice.

The course of work of the embodiment of the present application is as follows: motor 41 starts, and is rotated clockwise, dynamic by belt driving band The initial stage gear of governor gear group rotates counterclockwise, by governor gear group, so that first gear 443 rotates counterclockwise, it is inverse After hour hands rotate several circles, under the pressure effect of the first torsional spring 447, clamp 445 blocks second gear 444, so that second gear 444 can not be rotated clockwise, and force adjustable shelf 442 mobile to the direction far from output shaft 43, so that second gear 444 are disengaged from relationship with third gear 446, at this point, the effect of the not no external force of third gear 446, makees in the elastic force of elastic component 3 Under, expansion bracket 2 is projected out, and then drives third gear 446 to rotate counterclockwise by drawstring 5, is straightened, is stretched until by drawstring 5 Contracting frame 2 reaches highest point and just stops working.The structural member that connection appearance is provided on expansion bracket 2 reaches to be popped up The effect taken sb. aback.

When needing structure resetting preservation, motor 41 starts, and is rotated counterclockwise, and the dynamic speed regulation of belt driving band is passed through The initial stage gear of gear set rotates clockwise, by governor gear group, so that first gear 443 rotates clockwise, second Under the pressure effect of torsional spring 448, second gear 444 and third gear 446 remain meshing relation, at this point, clamp 445 does not rise Effect, only moves back and forth between the first position and the second position, since third gear 446 is rotating clockwise always, with Its output shaft 43 connected tightens drawstring 5, under the action of drawstring 5, expansion bracket 2 is compressed to lowest order, then stops work Make, structure resets.

You need to add is that a buckle closure 4411 is set on mounting plate 441, such mounting plate 441 and buckle closure 4411 It is fitted close and forms a space, power mechanism can be arranged in this space, further define the stability of axis, from And it ensure that the stability of power mechanism.

In conclusion the embodiment of the present application uses motor driven, pinion gear intermeshing movement makes shears-like movement structure Power saving, low cost, movement freely, the modification of shears-like movement direction are suitble to apply to the personage that the All Saints' Day bounces suddenly, Reach beyond people it is anticipated that the terrified entertainment effect taken sb. aback.Install convenient is not necessarily to external power supply transformer, reduces product Cost.

Preferably, groove 4451 is equipped on clamp 445, for fixing one end of the first torsional spring 447.

Preferably, the first mounting hole (not shown) is opened up on adjustable shelf 442 and the second mounting hole (does not show in figure Out), the first mounting hole is used to place one end of the first torsional spring 447, and the second mounting hole is used to place one end of the second torsional spring 448.

In turn, what the first torsional spring 447 and the second torsional spring 448 can be stable is mounted on adjustable shelf 442, thus worked Cheng Zhong, gear and governor gear can be stable completion work.

It preferably, further include cover board 449 identical with 442 shape of adjustable shelf, cover board 449 and adjustable shelf 442 are cooperatively connected；

Wherein, the first torsional spring 447, clamp 445, first gear 443 and second gear 444 be arranged at adjustable shelf 442 with Between cover board 449.

Specifically, the main function of cover board 449 is the first torsional spring 447, the clamp being arranged on adjustable shelf 442 in order to prevent 445, first gear 443 and second gear 444 fall off from respective axis during the work time, to cause the accident；Pass through lid The mating connection of plate 449 and adjustable shelf 442, the first torsional spring 447, clamp 445, first gear 443 and second gear 444 can only be It is moved on respective axis.

It preferably, further include wire spool 6, wire spool 6 is arranged on output shaft 43, and drawstring 5 connects far from one end of expansion bracket 2 It connects on wire spool 6.

In the embodiment of the present application, drawstring 5 is arranged on third connecting rod 23, and when such expansion bracket 2 is compressed, drawstring 5 is right The power that expansion bracket 2 generates is least, to reach most labour-saving effect.In turn, coiling is carried out using wire spool 6, dropped significantly The low complexity and cost of structure.

You need to add is that output shaft 43 uses square shaft, wire spool 6 is arranged on square shaft, when needing to tighten drawstring 5 When, wire spool 6 rotates clockwise together with output shaft 43, and then drawstring 5 is wound on wire spool 6, reaches expansion bracket 2 and is compressed Effect；When expansion bracket 2 pops up, wire spool 6 rotates counterclockwise together under the action of drawstring 5, with output shaft 43, until drawing Rope 5 all unclamps.Due to the setting of square shaft, it can prevent output shaft 43 from occurring wire spool 6 during rotation around output The case where axis 43 rotates, and such case can largely effect on the effect of tightening drawstring 5.

Preferably, first connecting rod 21 is connect by first base 7 with bottom plate 1, and second connecting rod 22 passes through second base 8 and bottom Plate 1 connects；Wherein, first base 7 and first connecting rod 21 are rotatablely connected, and second base 8 and second connecting rod 22 are rotatablely connected.

Specifically, first connecting rod 21 and second connecting rod 22 can be directly rotatablely connected with bottom plate 1；It can also be respectively by the One pedestal 7 and second base 8 are connect with bottom plate 1, at this point, first connecting rod 21 and first base 7 are rotatablely connected, second connecting rod 22 with Second base 8 is rotatablely connected, and first base 7 is fixedly connected with bottom plate 1, and second base 8 is fixedly connected with bottom plate 1.

In addition, can integrate in a spring telescoping mechanism in each structure feature in each embodiment of the application, It is also possible in one spring telescoping mechanism of each structure feature individualism, is also possible to two or more structure features It is integrated in a spring telescoping mechanism.

Second aspect, present invention also provides a kind of toys, including switch (not shown), loudspeaker 9, electron plate (figure In be not shown) and spring stretching structure, switch the start and stop for controlling power mechanism, loudspeaker 9 are connect with electron plate.

Specifically, loudspeaker 9 are mainly used to play music, and music is controlled by electron plate, and then loudspeaker 9 and electron plate are connected It connects.Switch can be audio-switch or key, all be the model of the application protection as long as capableing of the mode of starter motor 41 It encloses.

Because the telescoping mechanism that bounces has above-mentioned technical effect, the toy with the spring telescoping mechanism also has Identical technical effect.

Compared with the existing technology, the embodiment of the present application has the advantage that

The embodiment of the present application provides a kind of spring telescoping mechanism and toy changes flexible by using three-link structure The direction of motion of frame 2, to reach the oblique bullet contractive effect of expansion bracket 2；By the way that bullet is arranged between second connecting rod 22 and bottom plate 1 Property part 3, using the elasticity of elastic component 3, so that expansion bracket 2 realizes bouncing function；In turn, power mechanism passes through control drawstring 5 Elastic state controls the pop-up and compressive state of expansion bracket 2.Using motor driven, pinion gear intermeshing movement makes scissors Formula motion structure power saving, low cost, freely, by the modification of shears-like movement direction, be suitble to apply to the All Saints' Day bounces suddenly for movement Personage with, reach beyond people the terrified entertainment effect it is anticipated that taking sb. aback.Coiling is carried out using wire spool 6, is substantially reduced The complexity and cost of structure.Install convenient is not necessarily to external power supply transformer, reduces the cost of product.With existing skill The scissor direction of motion in art is single, and immutable bounce structure is compared, and the application can change the fortune of spring stretching structure Dynamic direction and pop-up mode, and then realize and tiltedly play contraction type.

Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen It please be described in detail, those skilled in the art should understand that: anyone skilled in the art Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution, should all cover the protection in the application Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.

Claims (10)

1. a kind of spring stretching structure, which is characterized in that including bottom plate and the expansion bracket that the bottom plate side is arranged in；

The expansion bracket includes first connecting rod, second connecting rod and third connecting rod, and the first connecting rod and the second connecting rod are distinguished With the third connecting rod be rotatablely connected, the one end of the first connecting rod and the second connecting rod far from the third connecting rod respectively with The bottom plate rotation connection, and the angle between the first connecting rod and the bottom plate is adjusted between 30 °~70 ° Section；

Between the first connecting rod and the bottom plate, and/or, at least one is set between the second connecting rod and the bottom plate Elastic component；

It further include providing the power mechanism of power for the expansion bracket, and for connecting the expansion bracket and the engine The drawstring of structure.

2. spring stretching structure according to claim 1, which is characterized in that the first connecting rod and the third connecting rod turn Dynamic connection forms the first tie point, and the second connecting rod and the third connecting rod are rotatablely connected to form the second tie point, defines institute Stating the distance between the first tie point and second tie point is A；The first connecting rod is rotatablely connected to be formed with the bottom plate Third tie point, the second connecting rod and the bottom plate are rotatablely connected to form the 4th tie point, define the third tie point with The distance between described 4th tie point is B；Wherein, A is not more than B.

3. spring stretching structure according to claim 1 or 2, which is characterized in that the power mechanism includes motor, speed regulation Gear set and output shaft；

The output shaft is connect with the drawstring；

The input terminal that the output end of the motor passes through belt transmission, gear drive or direct-connected mode and the governor gear group Connection, the output end and the output shaft of the governor gear group are sequentially connected；

It further include retaining mechanism, when the retaining mechanism is in running order, the retaining mechanism is only capable of the output shaft Enough single direction rotations.

4. spring stretching structure according to claim 3, which is characterized in that the retaining mechanism includes mounting plate, activity Frame, first gear, second gear and clamp；

The mounting plate and the motor are relatively fixed, and the gear shaft of the first gear is fixedly connected with the mounting plate；Institute The gear shaft for stating adjustable shelf and the first gear relatively rotates connection, keeps the relatively described mounting plate of the adjustable shelf flat It moves；The shaft of the gear shaft of the second gear and the clamp is fixedly connected with the adjustable shelf；The first gear point It is not engaged with the most final-stage gear of the governor gear group and the second gear；Third gear is set on the output shaft, And the second gear is engaged with the third gear；

First torsional spring is set in the shaft of the clamp, and one end of first torsional spring is fixedly connected with the clamp, another End is fixedly connected with the adjustable shelf；Second torsional spring is set on the gear shaft of the first gear, the one of second torsional spring End is fixedly connected with the mounting plate, and the other end is fixedly connected with the adjustable shelf；

The clamp includes at least first position and the second position；When the first gear is rotated to first direction, the card Son is in the first position, cooperates with the second gear, and the second gear is stuck；In the first gear to second When direction rotates, the clamp is in the second position, is detached from and cooperates with the second gear, enables the second gear It is rotated under the drive of the first gear；

First torsional spring, which makes the clamp always, has the trend moved from the second position to the first position.

5. spring stretching structure according to claim 4, which is characterized in that groove is equipped on the clamp, for solid One end of fixed first torsional spring.

6. spring stretching structure according to claim 4, which is characterized in that open up the first mounting hole on the adjustable shelf With the second mounting hole, first mounting hole is used to place one end of first torsional spring, and second mounting hole is for placing One end of second torsional spring.

7. spring stretching structure according to claim 6, which is characterized in that further include identical with the adjustable shelf shape Cover board, the cover board and the adjustable shelf are cooperatively connected；

Wherein, first torsional spring, the clamp, the first gear and the second gear be arranged at the adjustable shelf with Between the cover board.

8. spring stretching structure according to claim 3, which is characterized in that it further include wire spool, the wire spool setting On the output shaft, the drawstring is connected on the wire spool far from one end of the expansion bracket.

9. spring stretching structure according to claim 1, which is characterized in that the first connecting rod passes through first base and institute Bottom plate connection is stated, the second connecting rod is connect by second base with the bottom plate；Wherein, the first base and described first Link rotatable connection, the second base and the second connecting rod are rotatablely connected.

10. a kind of toy, which is characterized in that including switch, loudspeaker, electron plate and bullet as described in any one of claims 1 to 9 Stretching structure, the start and stop switched for controlling the power mechanism are jumped, the loudspeaker are connect with the electron plate.