CN203815059U

CN203815059U - Game bed for children

Info

Publication number: CN203815059U
Application number: CN201420187445.0U
Authority: CN
Inventors: 茅鸿勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-06
Filing date: 2014-04-06
Publication date: 2014-09-10
Anticipated expiration: 2024-04-06

Abstract

The utility model relates to a game bed for children. The game bed comprises bed legs (1), a control part (3) and supporting cross rods (2), wherein the bottom part of each bed leg (1) is movably connected with one end of a corresponding upper connecting rod (4) and one end of a corresponding lower connecting rod (5) respectively; the other end of the upper connecting rod (4) and the other end of the lower connecting rod (5) are movably connected with the control part (3) respectively; one end, being connected with a rotating shaft (51), of the lower connecting rod (5) is branched to form an upper branch rod (52) extending upwards obliquely and a lower branch rod (53) extending downwards obliquely; the end part of the upper branch rod (52) is connected with the pulling part at the top of the bed leg (1) through a first pulling rape (54), and passes through a cross shaft (11) at the bottom of the bed leg (1); the end part of the lower branch rod (53) is connected with the pulling part at the top of the bed leg (1) through a second pulling rape (55), and passes through a movable shaft and the cross shaft (11). The game bed has the advantages that the central control part is adopted to control the whole bed to be unfolded and folded; the bed body can be unfolded and folded by one hand, and can be completely unfolded by pushing down the control part; the game bed can be folded by pulling up the control part; the game bed is convenient and safe to operate, and good in stability.

Description

Child play bed

Technical field

The utility model relates to a kind of basket cot manufacture technology field, especially refers to a kind of child play bed.

Background technology

Existing a kind of patent No. is that 201320433688.3 Chinese utility model patents that are called a < < child entertainment bed > > disclose a kind of structure, its structure comprises four supporting legs and bottom center control device, the lower inside of the supporting leg described in every is hinged with connecting rod and lower link, between the upper end of the supporting leg described in adjacent two, be hinged with upper support beam, described upper support beam middle part is provided with folding crossbeam joint, between described supporting leg and described upper support beam, be provided with fold mechanism, between described upper connecting rod and lower link outer end, be provided with downward folding machine structure, described upper connecting rod and the inner of lower link are connected and are launched by bottom center control device Foldable with described bottom center control device, described folding crossbeam joint, downward folding machine structure, upper fold mechanism launches by described upper connecting rod and lower link Foldable.This utility model object is to have overcome the deficiencies in the prior art, and a kind of good stability is provided, and folds and launch easy to operate child entertainment bed.But its shortcoming is, fold mechanism complex structure, parts are many, make trouble, and production cost is high, so its structure needs to improve.

Utility model content

Technical problem to be solved in the utility model is to provide for above-mentioned prior art present situation the child play bed that a kind of life-span simple in structure, firm, easy to use is long and production cost is low.

The utility model solves the problems of the technologies described above adopted technical scheme: this child play bed, comprise four footposts and be placed in bed at the bottom of middle part can fold and launch the control part of a body, top between adjacent two footposts is respectively arranged with the support rail that middle part can be folding, described support rail two ends are connected with corresponding footpost top movable respectively, the bottom of described footpost respectively with corresponding on one end of connecting rod and lower link be movably connected and connect, the other end of described upper connecting rod and lower link is movably connected and connects with described control part correspondence position respectively, it is characterized in that: described footpost and the lower link structure connecing that is movably connected is: described lower link is movably connected and is connect by rotating shaft and footpost, one end bifurcated being connected with rotating shaft at described lower link goes out the upper branch bar of extension obliquely and the undershoot bar of oblique downward-extension, the end of described upper branch bar is connected with one end of the first stay cord, the other end of described the first stay cord is connected with the pulling department that footpost launches for bed body with support rail junction through the transverse axis of footpost bottom, the end of described undershoot bar is connected with one end of the second stay cord, the other end upper connecting rod of process of described the second stay cord and the movable axis that footpost is movably connected and connects, through transverse axis, be connected with the pulling department of support rail junction for bed folded body with footpost again, the link that the link of described upper branch bar and the first stay cord is greater than undershoot bar and the second stay cord to the distance between rotating shaft is to the distance between rotating shaft.

As improvement, the structure that described support rail is connected with footpost top movable can be preferably: the inverted L-shaped locating rack that is provided with cavity in comprising, first swings sheet, second swings sheet and location intermediate plate, described inverted L-shaped locating rack is fixed on the top of footpost, be concaved with bayonet socket being positioned on the transverse arm base of inverted L-shaped locating rack, described location intermediate plate fixes by the second bearing pin and support rail one end, described support rail end is stretched in the cavity of transverse arm and by the first bearing pin transverse arm, support rail links together actively with the spacer stretching in cavity, described first swings sheet middle part can be placed in the cavity of transverse arm rotationally by pivot pin, the described first lower end that swings sheet is movably connected and is connect by swinging axle and second swing sheet one end, the described second swing other end of sheet and the 3rd bearing pin of the first bearing pin lower position are movably connected and connect, the pulling department that can swing is formed on the described first top that swings sheet, the described first top that swings sheet is directly connected with the first stay cord coming up from footpost bottom, be provided with the 4th bearing pin being arranged in the cavity of transverse arm near top edge, described the second stay cord is first connected with the top of the first swing sheet through the 4th bearing pin again, when bed body is opened, described the first stay cord pulls downwards and makes the top of the first swing sheet to lower swing, swinging axle is moved up and be snapped in bayonet socket by flex point, when bed folded body, described the second stay cord is because first pulling downwards through the 4th bearing pin, the first top that swings sheet upwards swings, and swinging axle is moved down and deviate from from bayonet socket by flex point.This simple in structure firm, compact again, after opening, bed body can automatically lock, to receive while folding, energy automatic unlocking, so used very convenient.

As improvement, described first swings sheet can be combined side by side by two pendulums, pendulum middle part is gripped with cushion block, described pivot pin is by two pendulums and cushion block actively together with tandem arrangement, and the two ends of pivot pin are fixed on the transverse arm of corresponding two walls of cavity, described second swings sheet one end is folded in two pendulums, and by swinging axle, two pendulums and second are swung to sheet actively together with tandem arrangement, the top of described two pendulums links together two pendulums by apical axis, described the first stay cord and the second stay cord are connected on apical axis simultaneously, on the close transverse arm of bayonet socket oblique upper, be also provided with the recess snapping in for the 3rd bearing pin when bed folded body, above-mentioned recess does not overlap with bayonet socket, can make a body open more neatly and fold, make operation more stable, open more convenient.

As improvement, described footpost tip position is respectively arranged with can prevent surprisingly folding locking mechanism of support rail after support rail launches completely, described locking mechanism comprises the locking cover of spring cavity, spring and ball, described locking cover lays respectively in the pendulum of corresponding the 4th bearing pin below the right and left, described locking cover can swing together with pendulum, described spring is placed in the spring cavity of locking cover, one end of described spring is supported mutually with spring cavity sidewall, and the other end of described spring supports mutually with ball, in described ball energy retraction spring cavity and be positioned at the opening part position of spring cavity, the sphere of described ball supports mutually with the inwall activity in transverse arm inner chamber, and on the transverse arm side of ball support place when support rail launches completely, be provided with that ball can snap in and aperture is less than the hole clipping of ball diameter.This design, can make to launch that in bed body, support rail is when stay cord (referring to the first stay cord or/and the second stay cord) rupture, and locking mechanism is also well in the lock state support rail, thereby further improves a security for bed body use.

As improvement, bottom at every footpost also can be fixed with block set, in the bottom of block set inner chamber, be provided with the return pulley that can reduce friction when a body moves, described return pulley is positioned in block set by transverse axis, on the side of described block set, be provided with the vertical groove that corresponding upper connecting rod and lower link can stretch into, between two foreign steamer sheets of return pulley, transverse axis is provided with a left side, in, right three annular chambers, in the first stay cord process being connected with described upper branch bar, annular chamber is connected with the first apical axis swinging in sheet, the second stay cord being connected with described undershoot bar is walked around movable axis and through left annular chamber, from the left annular chamber of footpost, is extended upward, and be connected with the first apical axis swinging in sheet through the 4th bearing pin, the corresponding circle of the second stay cord that described right annular chamber is another side around, first stay cord on both sides all therefrom annular chamber centre circle around.This structure makes a body integral body more reasonable, and production cost is also lower.

Improve again, described upper connecting rod and the footpost structure connecing that is movably connected may be selected to be, described upper connecting rod is for inserting in the vertical groove of block set, and by movable axis and block set, is movably connected and connects, and is to be inserted in correspondence in the same vertical groove below connecting rod in the lower end of lower link.

As improvement, described support rail is comprised of two support rails and fold mechanism, described fold mechanism comprises that bottom has the link that groove two ends are provided with lug, two sides are the cyclic spring guide post of olive fruit shape, described support rail opposite end stretches into respectively in the respective slot of link, and be movably connected and connect by each self-corresponding lug in corresponding rotating shaft pin and link, described cyclic spring guide post two ends cover hangs on corresponding separately rotating shaft pin, and cyclic spring guide post is folded in respectively between the side and the madial wall of lug that support rail is corresponding, below the relative one end of described support rail, be respectively arranged with and launch and the transverse crown bar that can be respectively when support rail is flattened contacts mutually with the bottom of cyclic spring guide post when bed body.This structure, when support rail launches, stability and safety not only, and launch more convenient, due to the effect of elastic guide bar, when two support rails will launch, the bottom of elastic guide bar contacts mutually with transverse crown bar, force two support rails synchronously to flatten, the expansion of being in step with, thus can accurately be alignd in the end of two support rails.

Improve again, the pivot ear of the support rail intersection insertion that can make opposite end is extended respectively in the relative one end of described support rail, relative pivot ear is that left and right arranges, and the pivot ear of a support rail extend in the breach of a relative support rail, when support rail is when flattening, in the pivot ear end face on the described left side and the breach on the right, bottom surface is inconsistent, and in the pivot ear end face on described the right and the breach on the left side, bottom surface is inconsistent.This design can make the vertical medial surface of pivot ear fit respectively, closely conflicted in the end of launching rear two support rails, mutually rely on, two support rails after expansion do not become flexible and swing before and after not understanding, thus the stability and the security that have further improved fold mechanism.

Improve again, described control part comprises upper shell, lower house, four jiaos of places of described lower house are respectively arranged with the groove that can make corresponding upper connecting rod and lower link snap in actively, the described lower link respectively lower house by rotating shaft and respective slot bottom is movably connected and connects, the upper end of described upper connecting rod is movably connected and connects with the lower house at respective slot top respectively by movable axis, on being arranged in, the sickleshaped arm that can stretch into lower housing cavity is extended respectively at the top of connecting rod, described upper shell bottom is extended the protruding cover suitable with lower housing cavity downwards, four limits of described protruding cover are respectively arranged with Baltimore groove that can be suitable with sickleshaped arm, described sickleshaped arm is movably connected and connects with the upper shell of corresponding Baltimore groove position by the removable pin in mounting hole respectively, at the end face that is positioned at upper shell, be provided with draw ring or the stay cord that stretchy upper shell moves up, when described bed body launches completely, protruding cover in upper shell is embedded in the inner chamber of lower house, now upper shell periphery is to be covered on the periphery of lower house end face.

Compared with prior art, the utility model has the advantage of: the lower folding part structure of bed body is simpler, another part is few, easy to assembly, production cost significantly reduces, and its structure is very firm, because the utility model lower link one end arranges angled undershoot bar and upper branch bar, like this when bed body launches, upper branch bar is due to angle design cleverly, the end of first going up branch bar when upper branch bar rotates is near transverse axis, when bed body will will be opened completely, the end of upper branch bar starts taut wire stay cord because rotating just away from transverse axis, swing sheet drive swinging axle moves up and through flex point, makes support rail in launching lock-out state like this, while shrinking when bed folded body, undershoot bar is because rotation is away from movable axis, i.e. the second stay cord tension, pull like this swinging axle to move down and automatically terminate the locking mechanism of support rail, while turning over movable axis and rotating shaft line when undershoot bar continuation rotation, undershoot bar no longer strains the second stay cord near movable axis again, thereby effectively avoided the second stay cord at undershoot bar, to continue the problem being pulled off in rotation situation, and bed body compact conformation, volume is little, not only lightweight, and open and fold pack up all very convenient, during operation, by center-control portion, control opening of whole bed body and folding, as long as a hand just can launch bed body and fold, pressing control part downwards just can open completely, while packing up, as long as control part is pulled upwardly and can folds, handling safety, convenient, good stability, and be provided with and after support rail launches completely, can prevent surprisingly folding locking mechanism of support rail at footpost tip position, thereby use more stable and safety, and the movable folding part of energy, top of bed body, the folding part that bottom can be movable and the folding movable part of support rail drive and launch with folding by control part, one interlock, use very convenient.

Accompanying drawing explanation

Fig. 1 is the stereogram of the utility model embodiment;

Fig. 2 is that in Fig. 1, one footpost removes the stereogram that is decorated with the first stay cord (the second stay cord is not drawn) after part shell;

Fig. 3 is that in Fig. 1, one footpost removes the stereogram that is decorated with the second stay cord (the first stay cord is not drawn) after part shell;

Fig. 4 removes structural perspective after footpost block set in Fig. 1 different visual angles and footpost;

Fig. 5 be Fig. 4 different visual angles and the upper cover in controller is removed after stereogram;

Fig. 6 is the stereogram of Fig. 1 when folded state;

Fig. 7 is the structure of correlation between upper and lower strut and support rail in Fig. 1;

Fig. 8 is the enlarged drawing of I portion in Fig. 2;

Fig. 9 is the enlarged drawing of II portion in Fig. 2;

Figure 10 is the enlarged drawing of III portion in Fig. 2;

Figure 11 is the enlarged drawing of IV portion in Fig. 2;

Figure 12 is the enlarged drawing of X portion in Fig. 3;

Figure 13 is the enlarged drawing of VII portion in Fig. 5;

Figure 14 is the enlarged drawing of N portion in Fig. 6;

Figure 15 is the enlarged drawing of G portion in Fig. 4;

Figure 16 is the enlarged drawing of IX portion in Fig. 3;

Figure 17 is a footpost top exploded view (broken section) wherein in Fig. 1;

Figure 18 is the enlarged drawing of K portion in Figure 17;

Figure 19 is the side projection figure of Fig. 1;

Figure 20 is the enlarged drawing of P portion in Figure 19;

Figure 21 is the structure chart that in Figure 20, swinging axle is deviate from from bayonet socket;

Figure 22 is the enlarged drawing of H portion in Fig. 4;

Figure 23 is the location diagram of lower link rotation in Fig. 1;

Figure 24 goes up the curve map of the branch bar anglec of rotation and transverse axis distance relation in Figure 23;

Figure 25 is the curve map of the undershoot bar anglec of rotation and movable axis distance relation in Figure 23;

Figure 26 be in the support rail of Fig. 1 link with from the separated structure chart of support rail;

Figure 27 is the structure chart further decomposing on Figure 26 basis;

Figure 28 is the enlarged drawing of W portion in Figure 26;

Figure 29 is the enlarged drawing of T portion in Figure 27.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Fig. 1 to Figure 29, the child play bed of the present embodiment, comprise four footposts 1 and be placed in bed at the bottom of middle part can fold and launch the control part 3 of a body, top between adjacent two footposts 1 is respectively arranged with the support rail 2 that middle part can be folding, described support rail 2 two ends are connected with corresponding footpost 1 top movable respectively, the bottom of described footpost 1 respectively with corresponding on one end of connecting rod 4 and lower link 5 be movably connected and connect, the other end of described upper connecting rod 4 and lower link 5 is movably connected and connects with described control part 3 correspondence positions respectively, described footpost 1 and lower link 5 structure connecing that is movably connected is: described lower link 5 is movably connected and is connect by rotating shaft 51 and footpost 1, one end bifurcated being connected with rotating shaft 51 at described lower link 5 goes out the upper branch bar 52 of extension obliquely and the undershoot bar 53 of oblique downward-extension, the end of described upper branch bar 52 is connected with one end of the first stay cord 54, the other end of described the first stay cord 54 is connected with the pulling department that footpost 1 launches for bed body with support rail 2 junctions through the transverse axis 11 of footpost 1 bottom, the end of described undershoot bar 53 is connected with one end of the second stay cord 55, the other end upper connecting rod of process of described the second stay cord 55 and the movable axis 41 that footpost 1 is movably connected and connects, through transverse axis 11, be connected with the pulling department of support rail 2 junctions for bed folded body with footpost 1 again, the link of described upper branch bar 52 and the first stay cord 54 is greater than undershoot bar 53 and the second stay cord 55 link to the distance h between rotating shaft is to the distance S between rotating shaft 51.

Above-mentioned support rail 2 with the structure that footpost 1 top movable is connected is: the inverted L-shaped locating rack 6 that is provided with cavity 60 in comprising, first swings sheet 61, second swings sheet 62 and location intermediate plate 63, described inverted L-shaped locating rack 6 is fixed on the top of footpost 1, be concaved with bayonet socket 64 being positioned on transverse arm 65 bases of inverted L-shaped locating rack 6, described location intermediate plate 63 fixes by the second bearing pin 6b and support rail 2 one end, described support rail 2 ends are stretched in the cavity of transverse arm 65 and by the first bearing pin 6a transverse arm 65, support rail 2 links together actively with the spacer 63 stretching in cavity 60, described first swings sheet 61 middle parts can be placed in the cavity 60 of transverse arm 65 rotationally by pivot pin 66, the described first lower end that swings sheet 61 is movably connected and is connect by swinging axle 67 and second swing sheet 62 one end, the described second swing other end of sheet 62 and the 3rd bearing pin 6c of the first bearing pin 6a lower position are movably connected and connect, the pulling department that can swing is formed on the described first top that swings sheet 61, the described first top that swings sheet 61 is directly connected with the first stay cord 54 coming up from footpost 1 bottom, be provided with the 4th bearing pin 6d being arranged in the cavity 60 of transverse arm 65 near top edge, described the second stay cord 55 is first connected with the top of the first swing sheet 61 through the 4th bearing pin 6d again, when bed body is opened, described the first stay cord 54 pulls downwards and makes the top of the first swing sheet 61 to lower swing, swinging axle 67 is moved up and be snapped in bayonet socket 64 by flex point, when bed folded body, described the second stay cord 55 is because first pulling downwards through the 4th bearing pin 6d, the first top that swings sheet 61 upwards swings, and swinging axle 67 is moved down and deviate from from bayonet socket 64 by flex point.

Above-mentioned first swings sheet 61 is combined side by side by two pendulums, pendulum middle part is gripped with cushion block, described pivot pin 66 is by two pendulums and cushion block actively together with tandem arrangement, and the two ends of pivot pin 66 are fixed on the transverse arm 65 of corresponding two walls of cavity 60, described second swings sheet 62 one end is folded in two pendulums, and by swinging axle 67 by two pendulums with the second swing sheet 62 actively together with tandem arrangement, the top of described two pendulums links together two pendulums by apical axis 68, described the first stay cord 54 and the second stay cord 55 are connected on apical axis 68 simultaneously, on the close transverse arm 65 of bayonet socket 64 oblique uppers, be also provided with the recess 6e snapping in for the 3rd bearing pin 6c when bed folded body.

Above-mentioned footpost 1 tip position is respectively arranged with can prevent the unexpected folding locking mechanism of support rail 2 after support rail 2 launches completely, this locking mechanism comprises the locking cover 7 of spring cavity, spring 71 and ball 72, described locking cover 7 lays respectively in the pendulum of corresponding the 4th bearing pin 6d below the right and left, described locking cover 7 can swing together with pendulum, described spring 71 is placed in the spring cavity of locking cover 7, one end of described spring 71 is supported mutually with spring cavity sidewall, and the other end of described spring 71 supports mutually with ball 72, the diameter of the diameter of described ball 72 and the opening part of spring cavity is identical or be slightly less than opening diameter, the sphere of described ball 72 supports mutually with the inwall activity in transverse arm 65 inner chambers, and on transverse arm 65 sides of 72 supports place of the ball when support rail 2 launches completely, be provided with that ball 72 can snap in and aperture is less than the hole clipping 73 of ball 72 diameters.

The present embodiment is fixed with block set 12 in the bottom of every footpost 1, in the bottom of block set 12 inner chambers, be provided with the return pulley 13 that can reduce friction when a body moves, described return pulley 13 is positioned in block set 12 by transverse axis 11, on the side of described block set 12, be provided with the vertical groove 14 that corresponding upper connecting rod 4 and lower link 5 can stretch into, between two foreign steamer sheets of return pulley 13, transverse axis 11 is provided with a left side, in, right three annular chambers, in the first stay cord 54 processes that are connected with described upper branch bar 52, annular chamber 1b is connected with the first apical axis 68 swinging in sheet 61, the second stay cord (55) being connected with described undershoot bar (53) is walked around movable axis and through left annular chamber 1a, from the left annular chamber 1a of footpost 1, is extended upward, and be connected with the first apical axis 68 swinging in sheet 61 through the 4th bearing pin 6d, the corresponding circle of the second stay cord 54 that described right annular chamber 1c is another side around, first stay cord 54 on both sides all therefrom annular chamber 1b centre circle around, described upper connecting rod 4 and footpost 1 structure connecing that is movably connected is, described upper connecting rod 4 is for inserting in the vertical groove 14 of block set 12, and be movably connected and connect by movable axis 41 and block set 12, in the lower end of lower link 5, be to be inserted in correspondence in the same vertical groove 14 below connecting rod 4, the arc-shaped side 56 that the upper branch bar 52 in described lower link 5 can not touch with return pulley 13 while being designed to lower link 5 rotation with the outside between undershoot bar 53 mutually.

Above-mentioned support rail 2 is comprised of two support rails and fold mechanism, described fold mechanism comprises that bottom has the link 21 that groove two ends are provided with lug 22, two sides are the cyclic spring guide post 23 of olive fruit shape, described support rail opposite end stretches into respectively in the respective slot of link 21, and be movably connected and connect by each self-corresponding lug 22 in corresponding rotating shaft pin 24 and link, described cyclic spring guide post 23 two ends covers hang on corresponding separately rotating shaft pin 24, and cyclic spring guide post 23 is folded in respectively between the side and the madial wall of lug 22 that support rail is corresponding, below the relative one end of described support rail, be respectively arranged with and launch and the transverse crown bar 25 that can be respectively when support rail is flattened contacts mutually with the bottom of cyclic spring guide post 23 when bed body, the pivot ear 26 of the accurate alignment of support rail that can make opposite end is extended respectively in the relative one end of described support rail, relative pivot ear 26 is left and right setting, and the pivot ear 26 of a support rail extend in the breach 27 of another root support rail.

Above-mentioned control part 3 comprises upper shell 31, lower house 32, 32 4 jiaos of places of described lower house are respectively arranged with the groove 33 that can make corresponding upper connecting rod 4 and lower link 5 snap in actively, the described lower link 5 respectively lower house 32 by rotating shaft 51 and respective slot 33 bottoms is movably connected and connects, the upper end of described upper connecting rod 4 is movably connected and connects with the lower house 32 at respective slot 33 tops respectively by movable axis 40, on being arranged in, the sickleshaped arm 42 that can stretch into lower house 32 inner chambers is extended respectively at the top of connecting rod 4, described upper shell 31 bottoms are extended the protruding cover 34 suitable with lower house 32 inner chambers downwards, four limits of described protruding cover 34 are respectively arranged with Baltimore groove 35 that can be suitable with sickleshaped arm 42, described sickleshaped arm 42 is movably connected and connects with the upper shell 31 of corresponding Baltimore groove 35 positions by the removable pin 44 in mounting hole 43 respectively, at the end face that is positioned at upper shell 31, be provided with draw ring 36 or the stay cord that stretchy upper shell 31 moves up, when described bed body launches completely, protruding cover 34 in upper shell 31 is embedded in the inner chamber of lower house 32, now upper shell 31 peripheries are to be covered on the periphery of lower house 32 end faces.

Described Figure 24 and the coordinate horizontal line Z in Figure 25 represent lower link 5 anglecs of rotation, the distance of traction when described coordinate vertical line Y represents lower link 5 rotation, the curve map of hauling distance between upper branch boom end and transverse axis when the curve 9 in Figure 24 refers to the rotation of branch bar, the curve map of hauling distance between undershoot boom end and movable axis 41 when the curve 91 in Figure 25 refers to the rotation of undershoot bar.

Claims

1. a child play bed, comprise four footposts (1) and be placed in bed at the bottom of middle part can fold and launch the control part (3) of a body, top between adjacent two footposts (1) is respectively arranged with the support rail (2) that middle part can be folding, described support rail (2) two ends are connected with corresponding footpost (1) top movable respectively, the bottom of described footpost (1) respectively with corresponding on one end of connecting rod (4) and lower link (5) be movably connected and connect, the other end of described upper connecting rod (4) and lower link (5) is movably connected and connects with described control part (3) correspondence position respectively, it is characterized in that: described footpost (1) and lower link (5) structure connecing that is movably connected is: described lower link (5) is movably connected and is connect by rotating shaft (51) and footpost (1), one end bifurcated being connected with rotating shaft (51) at described lower link (5) goes out the upper branch bar (52) of extension obliquely and the undershoot bar (53) of oblique downward-extension, the end of described upper branch bar (52) is connected with one end of the first stay cord (54), the other end of described the first stay cord (54) is connected with the pulling department that footpost (1) launches for bed body with support rail (2) junction through the transverse axis (11) of footpost (1) bottom, the end of described undershoot bar (53) is connected with one end of the second stay cord (55), the other end upper connecting rod of process of described the second stay cord (55) and the movable axis (41) that footpost (1) is movably connected and connects, passing through transverse axis (11) is connected with the pulling department of support rail (2) junction for bed folded body with footpost (1) again, the link of described upper branch bar (52) and the first stay cord (54) is greater than undershoot bar (53) and the second stay cord (55) link to the distance (h) between rotating shaft (51) is to the distance (S) between rotating shaft (51).

2. child play bed according to claim 1, it is characterized in that: described support rail (2) with the structure that footpost (1) top movable is connected is: the inverted L-shaped locating rack (6) that is provided with cavity (60) in comprising, first swings sheet (61), second swings sheet (62) and location intermediate plate (63), described inverted L-shaped locating rack (6) is fixed on the top of footpost (1), be concaved with bayonet socket (64) being positioned on transverse arm (65) base of inverted L-shaped locating rack (6), described location intermediate plate (63) fixes by the second bearing pin (6b) and support rail (2) one end, described support rail (2) end is stretched in the cavity (60) of transverse arm (65) and by the first bearing pin (6a) transverse arm (65), support rail (2) links together actively with the spacer (63) stretching in cavity (60), described first swings sheet (61) middle part can be placed in the cavity (60) of transverse arm (65) rotationally by pivot pin (66), the described first lower end that swings sheet (61) is movably connected and connects with second swing sheet (62) one end by swinging axle (67), described second other end of swing sheet (62) and the 3rd bearing pin (6c) of the first bearing pin (6a) lower position are movably connected and connect, the pulling department that can swing is formed on the described first top that swings sheet (61), the described first top that swings sheet (61) is directly connected with the first stay cord (54) coming up from footpost (1) bottom, at the cavity (60) that is arranged in the close top edge of transverse arm (65), be provided with the 4th bearing pin (6d), described the second stay cord (55) is first connected with the top of the first swing sheet (61) through the 4th bearing pin (6d) again, when bed body is opened, described the first stay cord (54) pulls downwards and makes the top of the first swing sheet (61) to lower swing, swinging axle (67) is moved up and be snapped in bayonet socket (64) by flex point, when bed folded body, described the second stay cord (55) is because first pulling downwards through the 4th bearing pin (6d), the first top that swings sheet (61) upwards swings, and swinging axle (67) is moved down and pass through flex point and deviate from from bayonet socket (64).

3. child play bed according to claim 2, it is characterized in that: described first swings sheet (61) is combined side by side by two pendulums, pendulum middle part is gripped with cushion block, described pivot pin (66) is by two pendulums and cushion block actively together with tandem arrangement, and the two ends of pivot pin (66) are fixed on the transverse arm (65) of corresponding two walls of cavity (60), described second swings sheet (62) one end is folded in two pendulums, and by swinging axle (67) by two pendulums with the second swing sheet (62) actively together with tandem arrangement, the top of described two pendulums links together two pendulums by apical axis (68), described the first stay cord (54) is connected on apical axis (68) with the second stay cord (55) simultaneously, on the close transverse arm (65) of bayonet socket (64) oblique upper, be also provided with the recess (6e) snapping in for the 3rd bearing pin (6c) when bed folded body.

4. child play bed according to claim 3, is characterized in that: described footpost (1) tip position is respectively arranged with can prevent the unexpected folding locking mechanism of support rail (2) after support rail (2) launches completely.

5. child play bed according to claim 4, it is characterized in that: described locking mechanism comprises the locking cover (7) of spring cavity, spring (71) and ball (72), described locking cover (7) lays respectively in the pendulum of corresponding the 4th bearing pin (6d) below the right and left, described locking cover (7) can swing together with pendulum, described spring (71) is placed in the spring cavity of locking cover (7), one end of described spring (71) is supported mutually with spring cavity sidewall, and the other end of described spring (71) supports mutually with ball (72), described ball (72) can retraction in spring cavity and be positioned at the opening part position of spring cavity, the sphere of described ball (72) supports mutually with the inwall activity in transverse arm (65) inner chamber, and on transverse arm (65) side of ball (72) support place when support rail (2) launches completely, be provided with that ball (72) can snap in and aperture is less than the hole clipping (73) of ball (72) diameter.

6. child play bed according to claim 3, it is characterized in that: in the bottom of every footpost (1), be fixed with block set (12), in the bottom of block set (12) inner chamber, be provided with the return pulley (13) that can reduce friction when a body moves, described return pulley (13) is positioned in block set (12) by transverse axis (11), on the side of described block set (12), be provided with the vertical groove (14) that corresponding upper connecting rod (4) and lower link (5) can stretch into, between two foreign steamer sheets of return pulley (13), transverse axis (11) is provided with a left side, in, right three annular chambers, in the first stay cord (54) process being connected with described upper branch bar (52), annular chamber (1b) is connected with the first apical axis (68) swinging in sheet (61), the second stay cord (55) being connected with described undershoot bar (53) is walked around movable axis and is passed through left annular chamber (1a) again and extend upward from the left annular chamber (1a) of footpost (1), and be connected with the first apical axis (68) swinging in sheet (61) through the 4th bearing pin (6d), the corresponding circle of the second stay cord (55) that described right annular chamber (1c) is another side around, first stay cord (54) on both sides all therefrom annular chamber (1b) centre circle around.

7. child play bed according to claim 6, it is characterized in that: described upper connecting rod (4) and footpost (1) structure connecing that is movably connected is, described upper connecting rod (4) is for inserting in the vertical groove (14) of block set (12), and be movably connected and connect by movable axis (41) and block set (12), in the lower end of lower link (5), be to be inserted in the same vertical groove (14) of corresponding upper connecting rod (4) below.

8. according to arbitrary described child play bed in claim 1 to 7, it is characterized in that: described support rail (2) is comprised of two support rails and fold mechanism, described fold mechanism comprises that bottom has the link (21) that groove two ends are provided with lug (22), two sides are the cyclic spring guide post (23) of olive fruit shape, described support rail opposite end stretches into respectively in the respective slot of link (21), and be movably connected and connect by each self-corresponding lug (22) in corresponding rotating shaft pin (24) and link, described cyclic spring guide post (23) two ends cover hangs on corresponding separately rotating shaft pin (24), and cyclic spring guide post (23) is folded in respectively between the side and the madial wall of lug (22) that support rail is corresponding, below the relative one end of described support rail, be respectively arranged with and launch and the transverse crown bar (25) that can be respectively when support rail is flattened contacts mutually with the bottom of cyclic spring guide post (23) when bed body.

9. child play bed according to claim 8, it is characterized in that: described support rail (2) relatively one end extends respectively the pivot ear (26) of the support rail intersection insertion that can make opposite end, relative pivot ear (26) is left and right setting, and the pivot ear (26) of a support rail extend in the breach (27) of another root support rail, when support rail (2) is when flattening, in pivot ear (26) end face on the described left side and the breach (27) on the right, bottom surface is inconsistent, and in pivot ear (26) end face on described the right and the breach (27) on the left side, bottom surface is inconsistent.

10. according to arbitrary described child play bed in claim 1 to 7, it is characterized in that: described control part (3) comprises upper shell (31), lower house (32), described lower house (32) Si Jiaochu is respectively arranged with the groove (33) that can make corresponding upper connecting rod (4) and lower link (5) snap in actively, described lower link (5) the respectively lower house (32) by rotating shaft and respective slot (33) bottom is movably connected and connects, the upper end of described upper connecting rod (4) is movably connected and connects with the lower house (32) at respective slot (33) top respectively by movable axis (40), the sickleshaped arm (42) that can stretch into lower house (32) inner chamber is extended respectively at the top of connecting rod on being arranged in (4), described upper shell (31) bottom is extended the protruding cover (34) suitable with lower house (32) inner chamber downwards, four limits of described protruding cover (34) are respectively arranged with Baltimore groove (35) that can be suitable with sickleshaped arm (42), described sickleshaped arm (42) is movably connected and connects with the upper shell (31) of corresponding Baltimore groove (35) position by the removable pin (44) in mounting hole (43) respectively, at the end face that is positioned at upper shell (31), be provided with draw ring (36) or the stay cord that stretchy upper shell (31) moves up, when described bed body launches completely, protruding cover (34) in upper shell (31) is embedded in the inner chamber of lower house (32), now upper shell (31) periphery is for to be covered on the periphery of lower house (32) end face.