CN2793394Y - Collapsible supporting structure - Google Patents

Abstract

The utility model relates to a collapsible supporting structure which is used for an infanette. The collapsible supporting structure comprises a plurality of hollow main supporting rods and a plurality of auxiliary supporting rods which are arranged among the main supporting rods, wherein one end of each auxiliary supporting rod can move along each main supporting rod. The collapsible supporting structure also comprises a locking slide seat which is sheathed on one main supporting rod, a spiral slide seat which is jointed with the locking slide seat and an elastic element which is contained in one main supporting rod. The spiral slide seat is rotated and operated, and then, the distance between two main supporting rods can be easily changed to cause the collapsible supporting structure to be locked or folded.

Description

The support structure that can fold

Technical field

The utility model relates to a kind of support structure, is meant that especially a kind of Baby crib that is applied in can reach and folds and the support structure of safety locking when opening.

Background technique

Consult shown in Figure 1, it is existing a kind of locked configuration 1 that folds, be to use in a foldable type Baby crib (figure do not show), but this folds locked configuration 1 and comprises auxiliary pole 12, that most main struts 11, majority are disposed at 11 of these main struts and be socketed on the main strut 11 in this majority main strut 11 and the locking slide 13, of axial slip fastens cover and 14, one is fixed in trip 15 on the main strut 11, reaches one and be articulated in handgrip 16 on this locking slide 13 with a pivot 17.

This fastening lid 14 also is articulated on this locking slide 13, and has one and be positioned at front end and can fasten first buckling part 141 of this trip 15, reaches one second buckling part 142 that can engage this pivot 17.This folds locked configuration 1 and also comprises one and be articulated on this fastening lid 14 and have a security lock arrangement 18 that passes these fastenings lid 14 surfaces, but this security lock arrangement 18 has the 3rd buckling part 181 that an interlock is positioned at the recess (scheming not show) on locking slide 13 lower edges.

These locking slide 13 side direction articulate two auxiliary poles 12, desire is launched this when folding locked configuration 1, the user needs to lock slide 13 and up passes along the main strut 11 of this socket, when waiting handgrip 16 upwards pulled to move and should fasten and cover 14 covers and go up this trip 15 near this trip 15, make first buckling part 141 on this fastening lid 14 cost this trip 15, and then handgrip 16 is pulled downwards.After this handgrip 16 is pulled downwards, the pivotal points that lock relatively in the slide 13 owing to handgrip 16 cover 14 the different crank interlocks that form of pivoting point with handgrip 16 and fastening, along with the downward switching of handgrip 16 will drive this fastening lid 14 this trip 15 that links closely downwards, and make second buckling part 142 of this fastening lid 14 fasten this pivot 17, and be installed in and fasten on the recess of the 3rd buckling part 181 cover the security lock arrangement 18 in 14, form an expansion and lock the state of this Baby crib snap-lock slide 13.

By suitable design, when folding this Baby crib, the user presses to pass to fasten by this to be covered 14 security lock arrangement 18 and makes the go out of lock recess of slide 13 of the 3rd buckling part 181, simultaneously, the user must up pull this handgrip 16 to move and push this fastenings again aside and cover 14 and make this second and first buckling part 142,141 break away from this pivot 17 and this trip 15 respectively, be to place a release the lock state with folding locked configuration 1 at this moment, then the user can disassemble this locking slide 13 downwards and folds this Baby crib.

This folds locked configuration 1 is to utilize pulling of this handgrip 16 to move, drive this fastening lid 14 and make trip 15 and lock 13 of slides locked, but owing to utilize the elastic strain of plastic cement material to reach essential element buckle and free in the process of pulling, this folds locked configuration 1 certainly will can't bear permanent the use and the fragile distortion of element.

This folds locked configuration 1 another shortcoming, no matter be when folding or launching to lock, the user all must should fasten when especially launching locking and cover 14 meeting this trip 15 of clamping and this pivots 17 with bimanualness, easily jam a finger when the user uses, may cause unexpected injury accidentally so use.

The model utility content

The purpose of this utility model is to provide a kind of support structure that folds, and is except that the Security of height can be finished, be had to operating process with one hand, certain in the textural simple structure that also has than sight.

Another purpose of the present utility model is that a kind of locking framework with safety lock function, the possibility that causes accident to fold to avoid the false touch locking framework are being provided.

The support structure that the utility model can fold, comprise most hollow main struts, majority is disposed at the auxiliary pole between main strut, one end of described auxiliary pole can move along main strut, in order to change the distance between described main strut so that fold, the locking framework of support structure comprises that one is socketed on the main strut wherein and the locking slide of side joint auxiliary pole, the one spiral slide that engages with this locking slide, reach a U-shaped elastic element that is placed in this hollow main strut, the outer block holder of outstanding this hollow main strut one perforation of horizontal expansion one fexible bias pressure on the arm of U-shaped elastic element; This locking slide bottom has a snap ring that comprises one first engaging piece, and first axial channel that is positioned on the internal face, this spiral slide top has an interlock flange, and is formed on helicoid on the internal face, and one second axial channel, wherein this interlock flange comprise one can be chimeric with this first engaging piece second engaging piece, this helicoid comprises a top and the end away from this top near this interlock flange, and the bottom of this second axial channel is to connect to this helicoid top, and the tail end of this helicoid forms a locating slot.

Description of drawings

Below by most preferred embodiment and accompanying drawing the support structure that the utility model can fold is elaborated, in the accompanying drawing:

Fig. 1 is a stereogram, illustrates that existing one folds the schematic representation of locked configuration;

Fig. 2 is a schematic perspective view, and the preferred embodiment of the support structure that the utility model can fold is described, and is in a phase I safety locking state;

Fig. 3 is a three-dimensional exploded view, illustrates that present embodiment one locking slide, a spiral slide cover for seat are connected on the same main strut;

Fig. 4 is the stereogram of this locking slide;

Fig. 5 is the stereogram of this spiral slide, is to show its structure by the direction that the end is looked;

Fig. 6 is a side sectional view, and the internal structure of this spiral slide is described;

Fig. 7 be one by among Fig. 2 along the sectional view of I direction, illustrate that a double wedge rotates to and the chimeric position of a recessed tooth, one first axial channel was a straight line with one second axial channel and alignd this moment;

Fig. 8 is the axial sectional view after the present embodiment combination, illustrate that the introducing port of this first axial channel has been prepared confession one block holder importing at any time after this first axial channel and this second axial channel are a straight line and align;

Fig. 9 is the view of a similar Fig. 8, illustrates that this block holder to be ready entering this second axial channel, and shows through behind the oblique flange of this second axial channel bottom, is the state that connects to a helicoid top; And

Figure 10 is the view of a similar Fig. 9, illustrates that this block holder drops down onto the locating slot in block the place ahead along this helicoid displacement, and reaches a second stage safety locking state.

Embodiment

Aforementioned and other technologies content, characteristics and effect of the present utility model in the following detailed description that cooperates with reference to a graphic embodiment, can clearly present.

Before the utility model is described in detail, be noted that in the following description content similar or components identical will be represented with identical label.

The employed in daily life scope of collapsible structure is quite extensive, such as Baby crib, baby carriage, collapsible tables and chairs, set of tools, even the umbrella in the daily living article etc. all relates to the application of collapsible structure, consult shown in Figure 2, the preferred embodiment of the support structure that the utility model can fold is to use in the Baby crib (only presenting holder part among the figure) that Yu Yike folds, this support structure comprises most hollow main struts 3 and most the auxiliary poles 4 that are articulated in 3 of main struts on the Baby crib, one end of these auxiliary poles 4 can be along main strut 3 axial displacements, thereby change the distance of 3 of adjacent in twos main struts, it is closed up fold.Consult shown in Figure 3, improvement of the present utility model is, this support structure also comprises one and is socketed in locking slide 5 on the main strut 3, and engages and be socketed in the handgrip 8 that spiral slide 6, on the same main strut 3 is articulated in these spiral slide 6 lateral margins with this locking slide 5, and a U-shaped elastic element 7 (the assembling kenel is seen shown in Figure 8) that is placed in this hollow main strut 3.

Consult shown in Figure 4, this locking slide 5 can articulate two auxiliary poles 4 in two auxiliary poles, 4 pin-joint parts, 50 side direction in the present embodiment, the locking slide 5 of this hollow can free slippage on the main strut 3 of institute's socket, and has a snap ring 51 that is positioned at the bottom, locking slide 5 internal faces 53 of these snap ring 51 tops are formed with the recessed tooth 511 with radial inward, then are formed with first axial channel 52 directly over this recessed tooth 511.

Consult Fig. 5, shown in 6, spiral slide 6 tops have interlock flange 61, can link for snap ring 51 inlay cards with this locking slide 5, and be formed with second axial channel 63 within it on the side wall surface, has a helicoid 62 in the below of second axial channel 63, so that a spiral-guide path that extends to these spiral slide 6 bottoms to be provided, wherein this interlock flange 61 has the linearly double wedge 611 of aligned in position and radial outward of one and second axial channel 63, reach a chimeric position by this double wedge 611 with recessed tooth 511 engagements of this locking slide 5, can make locking slide 5 and first of spiral slide 6, two axial channel 52,63 alignment.

In the present embodiment, the bottom of this second axial channel 63 has the structure of an oblique flange 631,631 top positions at this helicoid top 621 of this oblique flange are located, and have a locating slot 64 at helicoid 62 ends 622, and locating slot 64 belows form a block 623.

This spiral slide 6 forms a perforation 65 below the oblique flange 631 of these second axial channel, 63 bottoms, and the top 621 of this helicoid 62 promptly is connected with these bore a hole 65 peripheral wall surfaces and these oblique flange 631 bottoms.As Fig. 3 and Fig. 8, this perforation 65 can for a button 66 install and can by perforation 65 press by.U-shaped elastic element 7 is mounted in hollow main strut 3 inside at locking slide 5 places, have the block holder 711 outside the through hole 31 on extended these hollow main strut 3 walls on one arm 71 of this U-shaped elastic element 7, these main strut 3 internal faces of 72 fexible bias pressures of another arm also make these block holder 711 perseverances towards hollow main strut 3 lateral direction bias voltages.In mounted support structure, articulate 5 of good locking slides fixed-direction with these auxiliary poles 4, and the position of this main strut 3 and the block holder 711 that stretches out by through hole 31 whole fold or locking process in relative position remain unchanged, so the direction of the introducing port of this first axial channel 52 also fixedly faces the linear position of this block holder 711, to prepare at any time for these block holder 711 importings.

Consult shown in Fig. 7,8, the interlock flange 61 of the spiral slide 6 of this support structure has been inserted in the snap ring 51 that locks slide 5 and can have relatively rotated.When desire is launched support structure, rotatable this handgrip 8 rotates to the position chimeric with the recessed tooth 511 of this locking slide 5 with the double wedge 611 that drives spiral slide 6, this first axial channel 52 was a straight line with 63 of this second axial channel and alignd this moment, so that a conduit that can make 711 slips of elastic element block holder to be provided.When main strut 3 was passed up, this block holder 711 can be imported into first, second axial channel 52,63 of this alignment connection and enter in this spiral slide 6 with the locking slide collapse state under 5 and spiral slide 6 this moment.

Consult shown in Figure 9, when block holder 711 during through the bottom of second axial channel 63, its oblique flange 631 is this block holder 711 of compression earlier, in case by behind this oblique flange 631, the button 66 that block holder 711 outwards ejects again and promotion is installed in this perforation 65 makes its relief, downward this block holder 711 of conflicting of relation oblique flange 631 meetings this moment because of gravity, with main strut 3 and the mutual alignment locking of spiral slide 6, be the safety locking state of this support structure phase I by this block holder 711 together with locking slide 5.

Consult shown in Figure 10, the utility model still tool can have the function of a second stage safety locking, mode of operation is after reaching phase I safety locking state handgrip 8 to be turned clockwise around this main strut 3, so spiral slide 6 relative main strut 3 clockwises rotate an angle, make the double wedge 611 and the recessed tooth 511 of locking slide 5 stagger mutually, simultaneously also make first and second guide groove 52,63 stagger mutually, the possibility that during with elimination false touch button 66 (see figure 9)s locking slide 5 and spiral slide 6 are dropped along two guide grooves 52,63 downwards.

When being rotated by clockwise along with spiral slide 6, the top 621 of helicoid 62 is supported by block holder 711 and rotation displacement up, relatively drop down onto in the locating slot 64 in block 623 the place aheads until this this block 623 of block holder 711 contacts, and reach second stage safety locking state.Present embodiment can distinctly stamp arrow mark (figure does not show) in force on the outer wall of locking slide 5 and spiral slide 6, can inform that when this two arrow is aligned condition this locking framework of user reached locking state.

In the present embodiment when desiring to fold support structure, need anticlockwise to rotate this handgrip 8, make this block holder 711 break away from this locating slot 64, and double wedge 611 is rotated to chimeric position with recessed tooth 511, this chimeric position can be declared by sense of touch and know, representative locking slide 5 has alignd with first, second axial channel 52,63 of spiral slide 6 and has been communicated with.After block holder 711 protrudes this perforation 65, the button 66 that the user pushes this relief can make this block holder 711 remove inwardly to contract, simultaneously this spiral slide 6 is moved down and can break away from spiral slide 6 by the bottom 631 of this second axial channel 63 along this main strut 3, each main strut 3 of interlock and auxiliary pole 4 return back to this collapse state simultaneously.

In sum, the support structure that the utility model can fold has the spiral slide 6 of helicoid 62 by rotation one, make this block holder 711 in these helicoid 62 displacements, and drive this locking slide 5 and make this Baby crib can conversion between collapse state and safety locking state.Compared to the existing locked configuration 1 that folds as shown in Figure 1, the utility model is locking member to be arrived at and the position that goes out of lock with spiral motion, the non-element by plastic cement material of the application of force in its operation and when locking bears but is born by the trunnion (block holder 711) of metallic material, preferable on durable degree, and element is relatively firmly and not fragile, in addition, the user can finish with one-handed operation when folding or locking this Baby crib, so can provide one to operate support structure more effective and easy and that have the height safety in utilization.

Claims (7)

1. support structure that can fold, this support structure comprises most hollow main struts and most the auxiliary poles that are disposed between main strut, one end of described auxiliary pole can move axially along main strut, in order to change the distance between described main strut so that fold, it is characterized in that: this support structure also comprises:

Locking slide on one main strut that is socketed in this majority main strut, but this locking slide side direction articulates an auxiliary pole and has a snap ring in its bottom, and first axial channel that is positioned on the internal face;

The one spiral slide that engages with this locking slide, having one is positioned at interlock flange, that the top connects for this snap ring and is formed on helicoid on the internal face, and one second axial channel, this helicoid comprises a top and the end away from this top near this interlock flange, and the bottom of this second axial channel is to connect to this helicoid top, and the tail end of this helicoid forms a locating slot; And

One is placed in the U-shaped elastic element in this hollow main strut, has a fexible bias pressure on the one arm and stretches out the outer block holder of this hollow main strut.

2. the support structure that folds as claimed in claim 1 is characterized in that: this spiral slide also has one and is positioned at the middle perforation in this second axial channel bottom and this helicoid top, and the top of this helicoid promptly is connected with the peripheral wall surfaces of this perforation.

3. the support structure that folds as claimed in claim 2 is characterized in that: this spiral slide also has a button that is installed in this perforation.

4. the support structure that folds as claimed in claim 1 is characterized in that: this locking slide comprises that one is positioned at first engaging piece on the snap ring, and this spiral slide comprises that one is positioned on the interlock flange and second engaging piece that can be chimeric with this first engaging piece.

5. the support structure that folds as claimed in claim 1 is characterized in that: the bottom of this second axial channel forms an oblique flange, and the top of this helicoid promptly is connected with this oblique flange.

6. the support structure that folds as claimed in claim 1 is characterized in that: also comprise a handgrip that is articulated in this spiral slide lateral margin.

7. the support structure that folds as claimed in claim 1 is characterized in that: this helicoid comprises that more one is connected in the block at this locating slot rear.

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