CN203723767U - Clamping mechanism and crib with same - Google Patents

Abstract

The utility model discloses a clamping mechanism and a crib with the same. The clamping mechanism comprises a first clamping piece and a second clamping piece, wherein the first clamping piece comprises a first connecting portion, a positioning tube and a locking piece; the first connecting portion is fixedly connected to an accessory of the crib; the first connecting portion downwards extends convexly to form the positioning tube; the locking piece is fixed on the first connecting portion; the second clamping piece comprises a second connecting portion; the second connecting portion is fixedly connected to a rack; an inserting hole which corresponds to the positioning tube and a locking hole which corresponds to the locking piece are formed in the second connecting portion; the positioning tube is detachably inserted in the inserting hole; and the locking piece is separately clamped in the locking hole. By using the clamping mechanism, the accessory of the crib can be simply, quickly, safely and firmly arranged on the crib, the stability is high, mounting and detaching modes are simple and convenient, and the clamping mechanism is simple in structure.

Description

Snap fastener and there is the infanette of this snap fastener

Technical field

The utility model relates to infant article technical field, relate more specifically to a kind of infanette and on snap fastener.

Background technology

Infanette, as looking after one of important auxiliary tool of infant, all generally uses in the U.S. and even global a lot of family.The style of infanette is varied now, function is also more and more complete, but in general the primary structure of infanette comprises the bedstead of the use as support and is assembled in the coating member on bedstead, bedstead and coating member define the space of infant's activity jointly, its bedstead mainly forms by metal tube and for the articles injection-moulded of connection metal pipe fitting, make and coating member is generally cloth fabric, thereby provide comfortable sleep and activity space for infant.

Existing infanette also has a lot of annexes, for example cradle, sleeping basket, diaper platform, rack, mosquito net, toy suspension rod, music box etc.; Wherein some annex adapted from infant's the different stages of growth.And for above-mentioned annex is installed on infanette, often need to be by some connectors, these connectors are upper outside except above-mentioned annex being connected in safely to baby bedstead, also will have stability and mode of operation easily.In addition, also foldable of many infanettes, so that travelling or storage, this just makes easily install and dismantle particularly important.

Therefore, be necessary to provide a kind of simple in structure, to facilitate the snap fastener of installation and dismounting of infanette annex, to solve above-mentioned the deficiencies in the prior art.

Utility model content

The purpose of this utility model be to provide a kind of simple in structure, to facilitate the snap fastener of installation and dismounting of infanette annex.

Another object of the present utility model is to provide a kind of infanette, and it has simple in structure and facilitates the snap fastener of installation and the dismounting of infanette annex.

For achieving the above object, the technical solution of the utility model is: a kind of snap fastener is provided, it is applicable to infanette annex to be removably connected on the support body of infanette, described snap fastener comprises the first fastener and the second fastener, described the first fastener comprises the first connecting portion that is fixedly connected on described infanette annex, protrude out the positioning pipe of formation downwards and be fixed on the locking piece of described the first connecting portion from described the first connecting portion, described the second fastener comprises the second connecting portion being fixedly connected on described support body, on described the second connecting portion, offer the jack corresponding with described positioning pipe and the lock hole corresponding with described locking piece, described positioning pipe is removably plugged in described jack, described locking piece is sticked in described lock hole separably.

Preferably, described the first connecting portion is fixed in one end of described locking piece, and it is outer for engaging with described lock hole that the other end of described locking piece protrudes out described the first connecting portion, makes described locking piece generation deformation that it is separated from described lock hole by operation.

Preferably, described locking piece is elastic construction, and described shape becomes elastic deformation.

Preferably, the end protruding out outside described the first connecting portion of described locking piece is bent to form clamping hooked, and described clamping hooked engages separably with described lock hole.

Preferably, the upper outside button that convexed into of described locking piece, on described the first connecting portion, offer the through hole corresponding with described button, described button protrudes out outside described the first connecting portion through described through hole, makes described locking piece deformation and separates from described lock hole by operating described button.

Preferably, on the sidewall of described button, protrude out and be formed with internal stop, the sidewall that is positioned at described through hole of described the first connecting portion forms the barrier sheet corresponding with described internal stop, and described locking piece when described barrier sheet is used for deformation positions.

Preferably, offer an elongated slot on described locking piece, on described the first connecting portion, protrude out and be formed with the location rib corresponding with described elongated slot, described location rib is arranged in described elongated slot.

Preferably, described the first connecting portion is provided with two relative limited walls, forms spacing zone described in two between limited wall, and described locking piece is located in described spacing zone.

Preferably, the structure spherical in shape of the end away from described the first connecting portion or the polygonized structure of described positioning pipe.

Preferably, the upper surface of described the second connecting portion is the curved-surface structure of inclination, and the lower surface of described the second connecting portion is fixedly connected with described support body.

Accordingly, the utility model also provides a kind of infanette, and it comprises support body, coating member, infanette annex and described infanette annex is removably connected in at least one snap fastener on described support body, and described coating member is coated on outside described support body, wherein, described snap fastener is described above.

Preferably, described infanette annex has a stay pipe, and described stay pipe has arc turning, described the first connecting portion has the arcuate structure corresponding with described arc turning, and the upper end of described the first connecting portion is provided with the deep-slotted chip breaker that holds described stay pipe, described positioning pipe protrudes out the lower end of described the first connecting portion.

Preferably, described the second connector is fixedly connected on a corner of described support body, and the shape of described the second connecting portion matches with the shape of described the first connecting portion.

Preferably, described snap fastener is arranged at the side handrail two ends of described support body symmetrically.

Preferably, described infanette also comprises support member, and described support member is connected between described infanette annex and described support body to support described infanette annex.

Compared with prior art, due to snap fastener of the present utility model, it comprises the first fastener and the second fastener, described the first fastener comprises the first connecting portion that is fixedly connected on described infanette annex, protrude out the positioning pipe of formation downwards and be fixed on the locking piece of described the first connecting portion from described the first connecting portion, described the second fastener comprises the second connecting portion being fixedly connected on described support body, on described the second connecting portion, offer the jack corresponding with described positioning pipe and the lock hole corresponding with described locking piece, described positioning pipe is removably plugged in described jack, described locking piece is sticked in described lock hole separably.When use, make its deformation and separate in lock hole by operational lock part, thereby infanette annex can being dismantled from infanette; When installation, by align jack being plugged in jack of positioning pipe, thereby because infanette accessory position reduces, locking piece is automatically sticked in lock hole, make infanette annex simple and quick and safety be installed on securely on infanette, stability is high, the mode of operation of installing and dismantle is all comparatively easy, and snap fastener is simple in structure.Correspondingly, the infanette that has an above-mentioned snap fastener also has identical technique effect.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model infanette.

Fig. 2 is the enlarged diagram of snap fastener one embodiment in Fig. 1.

Fig. 3 is the structural representation of another angle of Fig. 2.

Fig. 4 is the exploded view of Fig. 3.

Fig. 5 be in Fig. 4 the first fastener along the cutaway view of a-a` line.

Fig. 6 be in Fig. 4 the second fastener along the cutaway view of b-b` line.

Fig. 7 is the utility model infanette and the diaper platform view while correctly assembling.

View when Fig. 8 is the utility model infanette and the assembling of diaper platform mistake.

Fig. 9 is the enlarged diagram of snap fastener in Fig. 8.

Figure 10 is the cutaway view of another embodiment of snap fastener in Fig. 1.

Figure 11 is the cutaway view of another state of Figure 10.

Figure 12 is the rearview of locking piece in Figure 10.

Detailed description of the invention

With reference now to accompanying drawing, describe embodiment of the present utility model, in accompanying drawing, similarly element numbers represents similar element.The snap fastener 30 that the utility model provides, simple in structure, can stably infanette annex be connected on the support body 10 of infanette 1, and facilitate installation and the dismounting of infanette annex.

As shown in Figure 1, snap fastener 30 provided by the utility model, is applicable to infanette annex to be removably connected in infanette 1, and described infanette annex is removably connected on infanette 1 by least one snap fastener 30; Wherein, described infanette annex can be one or more in cradle, sleeping basket, diaper platform, rack, mosquito net, toy suspension rod etc., in following specific embodiment, is elaborated as an example of diaper platform example.

Particularly, described infanette 1 comprises support body 10 and is coated on the coating member (not shown) of described support body 10, and described support body 10 and coating member define the space of infant's activity jointly; And be removably connected with a diaper platform 20 by least one snap fastener 30 on support body 10.In a kind of optimal way, two snap fasteners 30 are arranged at the both sides (referring to aftermentioned) of a side handrail 111 of described support body 10 symmetrically, and diaper platform 20 is removably connected on support body 10 by two snap fasteners 30.

In addition, infanette 1 also comprises two support members 40, and described support member 40 is connected between diaper platform 20 and the long handrail 112 of described support body 10, in order to assist to support described diaper platform 20.

Continue to consult shown in Fig. 1, described support body 10 comprises upper frame 11, underframe 13 and is connected in stand 12 between the two; Wherein, described upper frame 11 comprises two side handrails that are oppositely arranged 111 and is connected in two long handrails 112 between two side handrails 111; Described underframe 13 comprises straight tube 131 and the bend pipe 132 of at one end pivot joint each other of complex root, the described bend pipe 132 not other end decurvation of pivot joint is connected to the supporting surface that infanette 1 is put, and said bend pipe 132 forms firm Undercarriage structure with described straight tube 131; And the described stand 12 that connects upper frame 11 and underframe 13 comprises four pipe fittings 121, wherein the two ends of each pipe fitting 121 are connected between upper frame 11 and the straight tube 131 of underframe 13 respectively.

Particularly, four jiaos of places of upper frame 11 form arc turning, and side handrail 111 forms arc turning with the link position place of long handrail 112, and four pipe fittings 121 of stand 12 are connected to four arc corners of upper frame 11; Preferably, between the two ends of one side handrail 111 and corresponding long handrail 112, pipe fitting 121, connect by two snap fasteners 30 respectively, a part for each snap fastener 30 is connected with upper frame 11, another part of each snap fastener 30 is fixedly connected on diaper platform 20, the corresponding engagement connection of two parts by snap fastener 30, thereby being connected diaper platform 20 and support body 10.

Accordingly, diaper platform 20 has a stay pipe 21, and described stay pipe 21 has four arc turnings 22, and 22 places, two arc turnings of described diaper platform 20 are fixedly connected with two snap fasteners 30 respectively.

As shown in Fig. 2-Fig. 6, described snap fastener 30 comprises the first fastener 31 and the second fastener 32; The first fastener 31 has the arcuate structure corresponding with the arc turning 22 of stay pipe 21, and it is fixed on 22 places, a certain arc turning of stay pipe 21; The second fastener 32 has the arcuate structure corresponding with the first fastener 31, and the second fastener 32 is fixedly connected on an arc corner of upper frame 11 and is fixedly connected with corresponding pipe fitting 121 simultaneously; Thereby matched in the turning of diaper platform 20 with the projection at infanette 1 turning.

Preferably, described the first fastener 31 is by polypropylene injection mo(u)lding, and therefore it has good counter-bending fatigability; Described the second fastener 32 is by acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene is called for short ABS) injection mo(u)lding, therefore has that intensity is high, good toughness, is easy to the characteristic of machine-shaping.Certainly, the first fastener 31, the second fastener 32 are not limited to make by above-mentioned material, the technology that this is well known to those skilled in the art.

As shown in Fig. 3-Fig. 6, the upper end that described the first fastener 31 comprises the first connecting portion 311, protrude out the positioning pipe 312 of formation from the lower end of described the first connecting portion 311 downwards and be fixed on locking piece 313, the first connecting portions 311 of the first connecting portion 311 is fixedly connected on described diaper platform 20; Described the second fastener 32 comprises the second connecting portion 321 being fixedly connected on described support body 10, on described the second connecting portion 321, offer the jack 322 corresponding with described positioning pipe 312 and the lock hole 323 corresponding with described locking piece 313, described positioning pipe 312 is removably plugged in described jack 322, described locking piece 313 is sticked in described lock hole 323 separably, thereby diaper platform 20 is removably connected on infanette 1.

More specifically, the curved structure of described the first connecting portion 311, and the arcuate structure of the first connecting portion 311 is corresponding with the arc turning 22 of described stay pipe 21, the upper end of the first connecting portion 311 is provided with the deep-slotted chip breaker (not label) that holds described stay pipe 21, stay pipe 21 is placed in deep-slotted chip breaker and is fixedly connected with it, and described positioning pipe 312, locking piece 313 all protrude out the lower end of described the first connecting portion 311.The shape of described the second connecting portion 321 is corresponding with the shape of described the first connecting portion 311, described the second fastener 32 is fixedly connected on the top of pipe fitting 121, and on the second fastener 32, be provided with draw-in groove (not label), an adjacent side handrail 111 of upper frame 11 and a long handrail 112 are sticked in respectively in described draw-in groove and are fixedly connected with it.

Continue to consult shown in Fig. 4-Fig. 6, the upper surface of described the second connecting portion 321 is the curved-surface structure of inclination, and the lower surface of described the second connecting portion 321 is fixedly connected with described support body 10; Also in the time that the support body 10 of intrinsic the second connecting portion 321 is positioned on the supporting surface of a level, one end 321a of the second connecting portion 321 is greater than the distance of its other end 321b with respect to supporting surface with respect to the distance of supporting surface.Like this, in the time that diaper platform 20 assembles by wrong direction, the end that protrudes out the locking piece 313 of the first connecting portion 311 lower ends can contact at higher one end 321a of the second connecting portion 321, thereby assembling is produced and interfered, diaper platform 20 cannot be installed on support body 10, with the safety that ensures to use.

In addition, end away from stretching out the first connecting portion 311 structure spherical in shape of described positioning pipe 312, is shown in Fig. 4 thereby form spherical rotation end 312a(), in the time installing, spherical rotation end 312a has good guide effect, thereby it is plugged in jack 322 exactly.Certainly, the end of the first connecting portion 311 is not limited to above-mentioned shape, for example, can also be set to polygonized structure etc.Positioning pipe 312 can adopt the material that is different from the first fastener 31, the second fastener 32 to make, for example, adopt metal to make, certainly not as limit.

Understandably, positioning pipe 312 with realize aliging between the first connecting portion 311 and the second connecting portion 321 coordinating of jack 322, but can also adopt other alignment structures to realize above-mentioned functions between the two, the technology that this is well known to those skilled in the art.

Again consult shown in Fig. 4, Fig. 5, the first connecting portion 311 is fixed in one end of described locking piece 313, it is outer for engaging with described lock hole 323 that the other end of locking piece 313 protrudes out the first connecting portion 311, makes locking piece 313 that deformation occur it is separated from described lock hole 323 by operation.Wherein, locking piece 313 is made by elastomeric material, and therefore locking piece 313 is elastic construction, and described shape becomes elastic deformation; Preferably, locking piece 313 is made by acetal or polyformaldehyde, therefore has heat resistanceheat resistant intensity, bending strength, a feature that fatigue durability intensity is high.

Particularly, described locking piece 313 has a body 3131, and the upper end of described body 3131 forms fixed part 3132, and the lower end of described body 3131 is bent to form clamping hooked 3133, and described clamping hooked 3133 is for engaging separably with described lock hole 323; And the upper outside button 3134 that convexed into of body 3131, on described the first connecting portion 311, offer with described button 3134 with respect to through hole 3111; When locking piece 313 is fixed on to the first connecting portion 311, first be arranged at the inner side of the first connecting portion 311, then fixed part 3132 is fixed on the first connecting portion 311, button 3134 protrudes out outside the first connecting portion 311 through described through hole 3111, can make locking piece 313 deformation and then clamping hooked 3133 is separated from lock hole 323 by inwardly pressing described button 3134.

Wherein, locking piece 313 can be fixed on the first connecting portion 311 in several ways.Shown in Figure 5, in an embodiment of the utility model snap fastener 30, the fixed part 3132 of locking piece 313 extends between the first connecting portion 311 and stay pipe 21, and when stay pipe 21 and the first connecting portion 311 are after shop riveting, locking piece 313 just can not remove from diaper platform 20.Another kind of mode is that little resilient fingers (not shown) is set on locking piece 313, also locking piece 313 can be fixed on to the first connecting portion 311 by this resilient fingers.Certainly, locking piece 313 also can be fixed on the first connecting portion 311 by other connectors, for example, be fixed in the first connecting portion 311 by screw, refers to aftermentioned.

Shown in Fig. 1-Fig. 9, the utility model infanette 1 and the assembling process of diaper platform 20 are described.

When assembling, first make the first fastener 31 on diaper platform 20 corresponding with the second fastener 32 on support body 10, as shown in Figure 7, then the positioning pipe 312 that is fixed on 22 places, diaper platform 20 1 arc turning is alignd with the jack 322 being fixed on the second fastener 32 of infanette 1 one corners, again positioning pipe 312 is plugged in this jack 322, in this process because diaper platform 20 reduces, therefore clamping hooked 3133 automatic fastenings of locking piece 313 are in lock hole 323, thereby diaper platform 20 is installed on infanette 1, as shown in Figure 2 and Figure 3 securely.

Described diaper platform 20 provides a position easily, and caregiver is more changing babies' napkin or carry out other nurses of infant in this case.And match to merge by the first fastener 31 of diaper platform 20 corners and the second fastener 32 of infanette 1 corner and be stuck between the upper frame 11 of infanette 1, diaper platform 20 is securely attached on infanette 1, thereby infant's safety while having ensured more changing babies' napkin, and make the children in infanette 1 not raise diaper platform 20 with head.

In addition, in assembling process, in the time that user installs diaper platform 20 by wrong direction, for example, when user presses the errors present installation diaper platform 20 shown in Fig. 8, after positioning pipe 312 is corresponding with jack 322, the bottom of locking piece 313 will contact at the upper surface of the second connecting portion 321, thereby the turning of infanette 1 is produced to interference effect, as Fig. 8, shown in Fig. 9, positioning pipe 312 cannot be plugged in jack 322 like this, locking piece 313 also cannot be sticked in lock hole 323, diaper platform 20 can not be connected with infanette 1, there is the wrong effect of installing that prevents, can increase and use upper degree of safety.

Need to dismantle diaper platform 20 time, user presses described button 3134 in the lateral of diaper platform, thereby make locking piece 313 produce deformation and bending, make thus clamping hooked 3133 depart from the lock hole 323 of the first fastener 31, now can upwards lift diaper platform 20, thereby it is separated from infanette 1, and the operation that diaper platform 20 is dismantled from infanette 1 is comparatively easy; In addition, more laborsaving concerning user by the design of pressing button 3134 in lateral.

As shown in Figure 10-Figure 12, another embodiment of the utility model snap fastener 30 is only that from the difference of above-described embodiment the structure of locking piece 313 is slightly different, and other structures are all same as the previously described embodiments, repeat no more.In the present embodiment, the fixed part 3132 of locking piece 313 is fixed on the first connecting portion 311 by a screw 314, as shown in Figure 9, one screw 314 is through the hole on fixed part 3132 and be connected on the madial wall of the first connecting portion 311 and both are fixed, adopt screw 314 fixing, make production cost low and be easy to assembling.

As shown in Figure 10-Figure 12, on the sidewall of described button 3134, protrude out and be formed with internal stop 3135, the sidewall that is positioned at described through hole 3111 places of described the first connecting portion 311 forms the barrier sheet 3112 corresponding with described internal stop 3135, and the locking piece 313 of described barrier sheet 3112 when to deformation positions.Particularly, inwardly promote button 3134 and while making locking piece 313 that deformation occur, locking piece 313 is bending and make clamping hooked 3133 hole 323 that goes out of lock, the internal stop 3135 conflict barrier sheets 3112 when locking piece 313 moves a certain distance after on it, thus prevent that locking piece 313 from upwarping in the time of deformation bending.

As shown in Figure 10-Figure 12, on described locking piece 313, also offer an elongated slot 3113, on described the first connecting portion 311, protrude out and be formed with the location rib 3136 corresponding with described elongated slot 3113, location rib 3136 is arranged in elongated slot 3113, this location rib 3136 is an alignment structures, it can ensure that locking piece 313 vertically arranges, and prevents that locking piece 313 from rotating around screw hole.

Certainly, described alignment structures is not limited to said structure, can also adopt multimode more to realize the alignment of locking piece 313; For example, on the first connecting portion 311, corresponding to the position of locking piece 313 left and right sides, two limited walls are set, forming spacing zone described in two between limited wall, locking piece 313 are placed in this spacing zone, equally can realize the alignment effect to locking piece 313, and can prevent its rotation; Wherein, described limited wall can be the sidewall of the groove offered on the first connecting portion 311, can be also the sidewall that vertically protrudes out the limited block of formation on the first connecting portion 311.For another example, another kind of comparatively easy mode is that the screw hole on locking piece 313 is offered as square structure, on the first connecting portion 311, offers corresponding square opening, utilizes a square screw, through screw hole, locking piece 313 is fixed on to the first connecting portion 311.

Alternatively, several the combining in said method can be used locking piece 313 is played to better alignment and anti-rotation effect.

Installation and disassembling section to diaper platform 20 in the present embodiment are same as the previously described embodiments, repeat no more.

Due to snap fastener 30 of the present utility model, it comprises the first fastener 31 and the second fastener 32, described the first fastener 31 comprises the first connecting portion 311 that is fixedly connected on infanette annex, protrude out the positioning pipe 312 of formation downwards and be fixed on the locking piece 313 of the first connecting portion 311 from described the first connecting portion 311, described the second fastener 32 comprises the second connecting portion 321 of the support body 10 that is fixedly connected on infanette 1, on described the second connecting portion 321, offer the jack 322 corresponding with described positioning pipe 312 and the lock hole 323 corresponding with described locking piece 313, described positioning pipe 312 is removably plugged in described jack 322, described locking piece 313 is sticked in described lock hole 323 separably.When use, make its deformation and from the interior separation of lock hole 323 by operational lock part 313, thus can be by infanette annex from infanette 1 dismounting; When installation, by align jack 322 being plugged in jack 322 of positioning pipe 312, thereby because infanette accessory position reduces, locking piece 313 is automatically sticked in lock hole 323, make infanette annex simple and quick and safety be installed on securely on infanette 1, stability is high, the mode of operation of installing and dismantle is all comparatively easy, and snap fastener 30 is simple in structure.Correspondingly, the infanette 1 that has an above-mentioned snap fastener 30 also has identical technique effect.

The utility model snap fastener 30 is not limited to diaper platform 20 to be connected on the support body 10 of infanette 1, can also be used for the connection of other infanette annexes, and this is well known to those of ordinary skill in the art, is no longer described in detail at this.

Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.

Claims (15)

1. a snap fastener, be applicable to infanette annex to be removably connected on the support body of infanette, it is characterized in that: described snap fastener comprises the first fastener and the second fastener, described the first fastener comprises the first connecting portion that is fixedly connected on described infanette annex, protrude out the positioning pipe of formation downwards and be fixed on the locking piece of described the first connecting portion from described the first connecting portion, described the second fastener comprises the second connecting portion being fixedly connected on described support body, on described the second connecting portion, offer the jack corresponding with described positioning pipe and the lock hole corresponding with described locking piece, described positioning pipe is removably plugged in described jack, described locking piece is sticked in described lock hole separably.

2. snap fastener as claimed in claim 1, it is characterized in that: described the first connecting portion is fixed in one end of described locking piece, it is outer for engaging with described lock hole that the other end of described locking piece protrudes out described the first connecting portion, makes described locking piece generation deformation that it is separated from described lock hole by operation.

3. snap fastener as claimed in claim 2, is characterized in that: described locking piece is elastic construction, and described shape becomes elastic deformation.

4. snap fastener as claimed in claim 2, is characterized in that: the end protruding out outside described the first connecting portion of described locking piece is bent to form clamping hooked, and described clamping hooked engages separably with described lock hole.

5. snap fastener as claimed in claim 1, it is characterized in that: the upper outside button that convexed into of described locking piece, on described the first connecting portion, offer the through hole corresponding with described button, described button protrudes out outside described the first connecting portion through described through hole, makes described locking piece deformation and separates from described lock hole by operating described button.

6. snap fastener as claimed in claim 5, it is characterized in that: on the sidewall of described button, protrude out and be formed with internal stop, the sidewall that is positioned at described through hole of described the first connecting portion forms the barrier sheet corresponding with described internal stop, and described locking piece when described barrier sheet is used for deformation positions.

7. snap fastener as claimed in claim 1, is characterized in that: on described locking piece, offer an elongated slot, on described the first connecting portion, protrude out and be formed with the location rib corresponding with described elongated slot, described location rib is arranged in described elongated slot.

8. snap fastener as claimed in claim 1, is characterized in that: described the first connecting portion is provided with two relative limited walls, forms spacing zone described in two between limited wall, and described locking piece is located in described spacing zone.

9. snap fastener as claimed in claim 1, is characterized in that: the structure spherical in shape of the end away from described the first connecting portion or the polygonized structure of described positioning pipe.

10. snap fastener as claimed in claim 1, is characterized in that: the upper surface of described the second connecting portion is the curved-surface structure of inclination, and the lower surface of described the second connecting portion is fixedly connected with described support body.

11. 1 kinds of infanettes, comprise support body, coating member, infanette annex and described infanette annex is removably connected in at least one snap fastener on described support body, described coating member is coated on outside described support body, it is characterized in that: described snap fastener is as described in claim 1-10 any one.

12. infanettes as claimed in claim 11, it is characterized in that: described infanette annex has a stay pipe, and described stay pipe has arc turning, described the first connecting portion has the arcuate structure corresponding with described arc turning, and the upper end of described the first connecting portion is provided with the deep-slotted chip breaker that holds described stay pipe, described positioning pipe protrudes out the lower end of described the first connecting portion.

13. infanettes as claimed in claim 12, is characterized in that: described the second connector is fixedly connected on a corner of described support body, and the shape of described the second connecting portion matches with the shape of described the first connecting portion.

14. infanettes as claimed in claim 11, is characterized in that: described snap fastener is arranged at the side handrail two ends of described support body symmetrically.

15. infanettes as claimed in claim 11, is characterized in that: also comprise support member, described support member is connected between described infanette annex and described support body to support described infanette annex.