CN104273984A - foldable game bed - Google Patents

Abstract

The invention discloses a foldable game bed, which comprises four sets of upper wall assemblies, side wall assemblies and bottom frame assemblies, and the bottom frame folding assembly (19) is pivotally connected with the bottom frame railing (1); it also includes four sets of An operating device associated with the upper wall joint assembly (20) and the bottom frame folding assembly (19), the operating device includes enabling the upper wall railing and the bottom frame railing (1) to respond to the movement of the bottom frame folding assembly (19) so that Four operating lines (3) that make the game bed switch from the open state to the folded state, one end of the four operating lines (3) is connected to the four upper circumference joint components (20) correspondingly, and the other end of the operating line (3) is along the The side wall extends downwards and then gathers and connects to the chassis folding assembly (19) along the play yard chassis. The folding game bed is easy to install, low in cost, convenient to operate, can realize synchronous folding of the railing of the bottom frame and the railing of the upper fence, and is safe and reliable.

Description

foldable game bed

technical field

The invention relates to the field of play yards, in particular to a foldable play yard.

Background technique

The baby play yard is a safe place for little ones to sleep and play, whether at home or on the go. A play yard can also create a safe area for babies, especially if they are crawling or curious. As your child gets older and more mobile, the play yard can also serve as a safe haven if you need to do other things, like work or chores. In order to take up less space and move more easily, the play yard is usually easy to fold. The folding play yard in the prior art includes four upper fence bars, four upright bars, feet arranged at the lower ends of the four upright bars, and the lower ends of the feet are usually provided with rollers. When folding, the joint structure is used to bend or pivot the four upper fence bars and the bottom frame respectively, so that the upper fence bars, the four side walls and the bottom frame are all moved closer to the middle, thereby reducing the volume. But the problem is that the structure of the underframe folding device in the prior art is complex, and the joint structures of the underframe folding device and the four upper fence bars cannot be folded synchronously, and the folding operation is troublesome. For this reason, a collapsible playpen has appeared on the market, which can be quickly and easily opened for use and folded for transportation or storage, with the center assembly positioned at the center, and the lower assembly is moved through the cable. connected to the upper assembly. But the problem is that to make the upper assembly open and fold in response to the linear movement of the center assembly up and down by the cables, it uses sets of cables and cams mounted on each upper lower leg pivotally connected to the lower corner assembly The response is achieved by the cooperation of the follower slider, that is, the cable is extended upwards via the side bar pivotally connected to the same lower corner assembly, and then the cable splits into two strands to meet the ends of the two adjacent upper arms. Connection, cable threading and installation are very difficult, time-consuming and labor-intensive, and due to the complicated threading of the cable, accidental jamming will occur due to the complicated threading process of the cable, resulting in a decline in the qualified rate of the finished product, which undoubtedly improves the manufacturing process. cost.

Contents of the invention

The technical problem to be solved by the present invention is to provide a safe and reliable folding play yard which is easy to install, low in cost, easy to operate, and can realize synchronous folding of the bottom frame railing and the upper railing.

The technical solution adopted by the present invention to solve the above problems is: a foldable game bed, including four sets of upper wall components, side wall components and underframe components, each set of upper wall components consists of a first upper wall rail, a second upper wall The fence rail and the upper wall joint assembly are composed, and the underframe assembly is composed of four underframe railings crossed in an X shape and an underframe folding assembly arranged at the crossing position of the four underframe railings, and the The base frame folding assembly is pivotally connected with the under frame railing; it also includes an operating device that associates the four upper wall joint assemblies with the bottom frame folding assembly, and the operating device includes making the upper railing bar and The bottom frame railing can respond to the movement of the bottom frame folding component so that the game bed switches from the open state to the four operating lines in the folded state. One end of the four operating lines is connected to the four upper joint components, and the other end of the operating line One end extends downward along the side wall of the game bed, and then gathers along the bottom frame of the game bed and is connected to the bottom frame folding assembly.

Compared with the prior art, the present invention has the advantage that: the operating device of the foldable game bed is such that the upper fence rail and the bottom frame railing can respond to the movement of the bottom frame folding assembly so that the game bed is switched from the open state to the folded state. One end of the four operating lines is correspondingly connected to the four upper wall joint components, and the other end of the operating line extends downward along the side wall of the game bed and then gathers along the bottom frame of the game bed and connects to the bottom frame folding assembly. During the actual installation, the operating lines are arranged along the side wall of the game bed, and one end of each operating line is connected to the corresponding upper wall joint assembly, and the other end of the operating line is connected to the bottom frame folding assembly. The structure is simple , The installation is very convenient, and it can realize the synchronous folding of the railing of the bottom frame and the railing of the upper fence, which is safe and reliable.

Description of drawings

Fig. 1 is a structural schematic diagram of a folding play yard according to the present invention.

Fig. 2 is a structural schematic diagram of the foldable game bed of the present invention, with half of the underframe railings and underframe folding components removed.

FIG. 3 is an enlarged structural schematic diagram of the chassis folding assembly at A in FIG. 2 .

Fig. 4 is a schematic structural view of the foldable chassis assembly of the folding play yard according to the present invention, and the upper seat is in a disassembled state.

Fig. 5 is a structural schematic diagram of the chassis folding assembly of the folding play yard according to the present invention during the folding process.

Fig. 6 is a structural schematic diagram of the upper fence rod assembly of the foldable play yard according to the present invention, and the connecting seat is in a disassembled state.

Fig. 7 is a structural schematic diagram of the upper fence rail assembly of the folding play yard according to the present invention during the folding process.

Fig. 8 is a structural schematic diagram of another embodiment of the upper fence rail assembly of the foldable play yard according to the present invention, and the connecting seat is in a disassembled state.

Fig. 9 is a structural schematic diagram of another embodiment of the upper fence rail assembly of the foldable play yard according to the present invention during the folding process.

Fig. 10 is a structural schematic diagram of another embodiment of the upper fence rod assembly of the foldable play yard according to the present invention, and the connecting seat is in a disassembled state.

Fig. 11 is another structural schematic view of the folding play yard's underframe folding assembly of the present invention, with the mounting seat cut away.

Fig. 12 is another structural schematic diagram of the chassis folding assembly of the foldable play yard of the present invention during the folding process

In Fig. 1-5: 1 base frame railing, 2 mounting seat, 2.1 outer seat, 2.1.1 card slot, 2.2 inner seat, 2.3 upper seat, 2.4 connecting seat, 2.4.1 waist-shaped hole, 3 operating line, 3.1 clue, 3.2 Wire sleeve, 4 first unlocking part, 4.1 limit slot, 5 first pin shaft, 6 second unlocking part, 6.1 swing arm, 7 limit post, 8 second pin shaft, 9 roller, 10 swinging part, 11 The third pin shaft, 12 the second torsion spring, 13 unlocking line, 14 connector, 15 cover, 15.1 handle, 16 auxiliary chassis railing, 17 fixing column, 18 installation shaft, 19 chassis folding assembly;

Among Fig. 6-7: 3 operating lines, 3.1 clues, 3.2 line sets, 20 upper enclosure joint components, 21 first upper fence bars, 21.1 first arc grooves, 22 second upper fence bars, 22.1 second arc grooves , 23 connecting seat, 23.1 chute, 24 base, 25 first crank, 26 second crank, 27 spring, 28 first shaft, 29 second shaft, 30 guide pin, 31 connecting rod, 32 first rotation Bearing pin, 33 first rollers, 34 second rotating pins, 35 second rollers.

Among Fig. 8-9: 3 operating lines, 3.1 clues, 3.2 wire sleeves, 210 first upper fence rail, 210.1 first arc groove, 220 second upper fence rail, 220.1 second arc groove, 230 connecting seat, 230.1 Chute, 240 fixed pin, 250 curved rod, 260 swing rod, 260.1 extension section, 270 extension spring, 280 first rotating shaft, 290 second rotating shaft, 300 guide pin shaft, 310 limit seat, 320 first pin shaft, 330 First roller, 340 second bearing pin, 350 second roller.

In Fig. 10: 3 operating line, 3.1 clue, 3.2 wire sleeve, 021 first upper fence bar, 022 second upper fence bar, 023 connecting seat, 023.1 first chute, 023.2 second chute, 023.4 third chute , 024 guide piece, 024.1 first guide groove, 024.2 second guide groove, 025, first pin shaft, 026 second pin shaft, 027 guide pin shaft, 028 base, 029 extension spring.

Among Fig. 11-12: 01 underframe railing, 02 mounting seat, 3 operating line, 3.1 clue, 3.2 line cover, 04 pulley, 04.1 rotating shaft, 05 sliding seat, 06 handle.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a kind of foldable play yard comprises four sets of upper wall components, side wall components and underframe components, and each group of upper wall components consists of a first upper fence bar 21, a second upper fence bar 22 and an upper Composed around the joint assembly 20, the underframe assembly is composed of four underframe railings 1 arranged crosswise in an X shape and an underframe folding assembly 19 arranged at the intersection positions of the four underframe railings 1, and the The underframe folding assembly 19 is pivotally connected with the underframe railing 1; it also includes an operating device that associates the four upper joint assemblies 20 with the underframe folding assembly 19, and the operating device includes making The upper fence railing and the bottom frame railing 1 can respond to the movement of the bottom frame folding assembly 19 so as to switch the game bed from the open state to the four operating lines 3 in the folded state. One end of the four operating lines 3 is correspondingly connected to the four upper Around the joint assembly 20 , the other end of the operating wire 3 extends downward along the side wall of the play yard and then gathers along the bottom frame of the play yard and is connected to the bottom frame folding assembly 19 .

As shown in Figures 1 and 2, in this specific embodiment, each of the operating lines 3 extends downward along the threading path vertically arranged in the side cloth cover of the game bed, and then along the bottom frame of the game bed along the horizontal direction. Gathered to be connected to the chassis folding assembly 19.

In this specific embodiment, as shown in Figures 2, 3, 4, and 5, the chassis folding assembly 19 includes mounting seats 2 arranged at the crossing positions of the four chassis railings 1 and symmetrically arranged in the mounting seats 2. The unlocking device, the mounting seat 2 includes an outer seat 2.1 and an inner seat 2.2, and the four chassis railings 1 are hinged to the outer seat 2.1 near the ends, and the ends of the chassis railings 1 are pivotally connected to the On the inner seat 2.2; the outer seat 2.1 is provided with a cavity for accommodating the inner seat 2.2, and the inner seat 2.2 is slidably fitted in the cavity of the outer seat 2.1;

The unlocking device includes a first unlocking part 4 and a second unlocking part 6 for driving the first unlocking part 4 to move. The first unlocking part 4 is connected to the outer seat 2.1 through the first pin shaft 5. The other end of the operating wire 3 It is fixedly connected to the upper end of the first unlocking part 4; the middle part of the second unlocking part 6 is rotatably connected to the inner seat 2.2 through the second pin shaft 8, and the second pin shaft 8 is fitted with the first torque for reset. Spring; one end of the second unlocking member 6 is provided with a swing arm 6.1 for driving the lower end of the first unlocking member 4 to rotate around the first pin shaft 5 and pull the operating wire 3 during the retraction process. ; The operating wire 3 is composed of a thread 3.1 located in the inner core and a wire sleeve 3.2 fitted on the periphery of the wire 3.1, and the end of the wire 3.1 is fixedly installed on the upper end of the first unlocking member 4, and the end of the wire sleeve 3.2 is against the At the outer wall of the outer seat 2.1. The structure of the operating wire used in the present invention is similar to that of the brake wires used by bicycles and motorcycles. It is also called a control cable. It is a common product on the market. Technicians can choose it by themselves according to their needs, and will not repeat it here.

It also includes an unlocking protection device. The unlocking protection device includes a swinging member 10 connected to the inner cavity at the bottom of the inner seat 2.2 through a third pin shaft 11. The inner wall of the outer seat 2.1 is provided with a card for engaging one end of the swinging member 10. Slot 2.1.1; the second torsion spring 12 for resetting is fitted on the third pin shaft 11 . The unlocking protection device also includes an upper seat 2.3, a connecting seat 2.4 and an unlocking line 13, the connecting seat 2.4 is installed between the upper seat 2.3 and the inner seat 2.2, the lower end of the connecting seat 2.4 is fixedly connected with the inner seat 2.2, and the extension direction on the connecting seat 2.4 is set There is a waist-shaped hole 2.4.1, and the upper seat 2.3 passes through the waist-shaped hole 2.4.1 through the installation shaft 18 and is connected to the inner seat 2.2. The upper end of the unlocking line 13 is fixed on the installation shaft 18, and the lower end of the unlocking line 13 is fixed on the On the pendulum 10. In this way, the arrangement of the unlocking protection device can effectively prevent cats, dogs and other small animals from getting into the bottom of the game bed and cause misoperation, which is safer and more reliable.

The lower end of the first unlocking member 4 is rotatably mounted with a roller 9 for cooperating with the swing arm 6.1 of the second unlocking member 6 . In this way, friction can be effectively reduced, making the operation of folding or opening more smooth.

The first unlocking member 4 is provided with an arc-shaped guide groove 4.1, and a guide column 7 is slidably fitted in the guide groove 4.1, and the guide column 7 is fixedly installed on the inner wall of the outer seat 2.1. In this way, the rotation of the first unlocking member 4 can be guided and limited, which is safer and more reliable.

The upper surface of the outer seat 2.1 is provided with a cover 15, and the middle part of the cover 15 is fit and installed on the outer peripheral surface of the upper seat 2.3, and the cover 15 is horizontally provided with a handle 15.1 for installing a handle, and the handle 15.1 is exposed on the Cover 15. In this way, the unlocking device and the unlocking protection device in the installation seat can be better protected, safe and reliable.

The inner seat 2.2 is fixed with a fixed post 17 near the second unlocking part 6 , one end of the first torsion spring is against the inner wall of the second unlocking part 6 , and the other end of the first torsion spring is against the fixed post 17 . In this way, the second torsion spring can be effectively fixed, and the elastic reset effect of the second unlocking member is better.

The end of the underframe railing 1 is hinged to one end of the connecting piece 14, and the other end of the connecting piece 14 is hinged to the inner seat 2.2.

Four auxiliary chassis railings 16 are arranged parallel to the bottom of the four chassis railings 16, and one end of the railing of each auxiliary chassis is hinged on the outer seat 2.1, and the auxiliary chassis railings 16 The other end of the game bed is hinged on the foot of the game bed. In this way, the synchronicity is better when the railing of the underframe is folded, and it can play a certain role of buffering, so that the folding effect is better.

When the game bed needs to be folded, pull up the strap installed on the handle 15.1 to drive the upper seat 2.3 to move upward, and the unlocking line on the installation shaft 18 drives the swinging member 10 to break away from the card slot 2.1.1 of the outer seat 2.1, that is It can drive the inner seat 2.2 to slide upwards along the inner cavity of the outer seat 2.1. After the upper seat 2.3 goes up a certain stroke, it connects the length of the waist-shaped hole 2.4.1 on the seat 2.4, and the inner seat 2.2 continues to move upward until the second unlocking part 6 The swing arm 6.1 drives the roller 9 at the lower end of the first unlocking member 4 to move so that the first unlocking member 4 rotates around the first pin shaft 5 and pulls the operating wire 3 to move.

As shown in Figures 6 and 7, the upper fence rod joint assembly is provided with a connecting seat 23 between the first upper fence rod 21 and the second upper fence rod 22, and the ends of the first upper fence rod 21 and the second upper fence rod 22 Both parts can be rotatably connected to the connecting seat 23, and there is also a connection between the first upper fence rod 21 and the second upper fence rod 22, which is used to rotate the first upper fence rod 21 and the second upper fence rod 22 from the horizontal state to the vertical state. To the joint assembly in the folded state, the joint assembly includes a first curved bar 25, a second curved bar 26 and a spring 27 for resetting. One end of the first curved bar 25 is against the first upper fence bar 21, and the first curved bar 25 The middle part of the first rotating shaft 28 is rotationally connected with the connecting seat 23, and one end of the second curved bar 26 is against the second upper fence bar 22, and the middle part of the second curved bar 26 is rotationally connected with the connecting seat 23 through the second rotating shaft 29, and The other end of the first crank 25 is hinged with the other end of the second crank 26 through the guide pin 30, and the operating wire 3 is fixedly connected to the guide pin 30, and the operating wire is used to pull the guide pin 30 along the vertical direction. Sliding in the straight direction, the spring 27 fits and installs on the outer periphery of the operating wire 3; the operating wire 3 is composed of a thread 3.1 installed on the inner core and a wire sleeve 3.2 fitted on the outer periphery of the thread 3.1, and the end of the thread 3.1 is fixedly connected to the guide pin The shaft 30 and the end of the wire sleeve 3.2 abut against the bottom wall of the base 24 arranged at the bottom of the connection base 23 .

The connecting base 23 is vertically provided with a sliding groove 23.1 for guiding the sliding of the guide pin 30, and the guide pin 30 is slidingly fitted in the sliding groove 23.1.

The bottom of the connecting seat 23 is provided with a base 24 , and the lower end of the spring 27 is against the base 24 .

A vertical connecting rod 31 is fixedly installed on the guide pin shaft 30. The connecting rod 31 is provided with a hollow cavity for passing through, and the spring 37 is fitted on the outer circumference of the connecting rod 31, and the upper end of the spring 37 is against the connecting rod 31. The lower end of the rod 31 and the spring 27 is against the upper end of the base 24 .

One end of the first curved rod 25 is fitted with a first pin 32, and the first pin 32 is fitted with a first roller 33. The first arc groove 21.1 that offsets; one end of the second curved rod 26 is fitted with a second pin shaft 34, and the second pin shaft 34 is fitted with a second roller 35, and the second upper fence bar 22 The end is provided with a second arc-shaped groove 22.1 for abutting against the second roller 35.

The aforementioned joint components are arranged symmetrically with respect to the axis of the operating wire 3 .

At the same time when the above-mentioned underframe folding assembly pulls the operation wire 3 to move, the upper end of the operation wire 3 drives the guide pin shaft 30 to slide down along the chute 23.1 on the connecting seat 23, driving the first curved rod 25 and the second curved rod 26 respectively Rotate around the first rotating shaft 28 and the second rotating shaft 29, then the upper ends of the first curved rod 25 and the second curved rod 26 are upwardly tilted, and the first curved rod 25 and the second curved rod 26 are respectively connected with the first upper fence rod 21 and the first curved rod 21. The second upper fence bar 22 is disengaged, and the cooperation between the roller and the arc groove can effectively reduce the distance between the first curved rod 25 and the first upper fence rod 21 and the second curved rod 26 and the second upper fence rod 22. The friction between them makes the disengagement more smooth. Then the first upper fence rail 21 and the second upper fence rail 22 can be rotated and folded around the connecting seat 23, so that the synchronous folding of the bottom frame rail and the upper fence rail can be realized, and the operation is very convenient.

As shown in Figures 8 and 9, another embodiment of the upper fence rod joint assembly of the present invention is: a connecting seat 230 is provided between the first upper fence rod 210 and the second upper fence rod 220, and the first upper fence rod 210 and the end of the second upper fence bar 220 can be rotatably connected to the connecting seat 230, and there is also a connection between the first upper fence bar 210 and the second upper fence bar 220 for connecting the first upper fence bar 210 and the second upper fence bar. The fence bar 220 is a joint assembly that rotates from a horizontal state to a vertically folded state. The joint assembly includes a curved bar 250, a swing bar 260 and a tension spring 270 for reset. One end of the curved bar 250 is offset against the first upper fence bar 210, and the curved bar 250 The middle part of the rod 250 is rotationally connected with the connecting seat 230 through the first rotating shaft 280, the upper end of the swing rod 260 is offset against the second upper fence rod 220, and the middle part of the swing rod 260 is rotationally connected with the connecting seat 230 through the second rotating shaft 290, and the swing rod 260 The middle part is provided with an extension section 260.1, and the other end of the curved bar 250 is hinged with the extension section 260.1 in the middle part of the swing link 260 through a guide pin 300. One end of the extension spring 270 is fixed on the connecting seat 230 for the operation wire 3 connected to the folding assembly of the play yard chassis, and the other end of the extension spring 270 is fixed to the lower end of the swing rod 260 through the fixing pin 240 . The operating wire 3 is composed of a thread 3.1 located in the inner core and a wire sleeve 3.2 fit and installed on the periphery of the thread 3.1. The end of the thread 3.1 is fixedly connected to the lower part of the swing rod 260 and the thread 3.1 is generally arranged horizontally. The bottom of the connecting seat 230 A limit seat 310 is provided, and a mounting hole for accommodating the wire sleeve 3.2 is provided in the limit seat 310, and the end of the wire sleeve 3.2 abuts against the inner wall of the mounting hole. As shown in Figures 8 and 9, the operating wires 3 are generally arranged horizontally. In this way, the threading path in the side cloth cover of the game bed can also be arranged horizontally first and then converge downwards to the bottom frame, which can effectively avoid damage to the game bed. The influence of the aesthetics of the bedside cloth cover.

A chute 230.1 for guiding the sliding of the guide pin shaft 300 is vertically provided on the connecting seat 230, and the guide pin shaft 30 is slidably fitted in the chute 230.1.

One end of the curved rod 250 is fitted with a first pin shaft 320, and the first pin shaft 320 is fitted with a first roller 330, and the end of the first upper fence bar 210 is provided for slidingly fitting with the first roller 330. The first arc-shaped groove 210.1; the upper end of the swing rod 260 is fitted with a second pin shaft 340, and the second pin shaft 340 is fitted with a second roller 350, and the end of the second upper fence bar 220 is provided with a The second arc-shaped groove 220.1 is in sliding fit with the second roller 350.

As shown in Figure 10, another embodiment of the upper fence bar joint assembly of the present invention is: a connecting seat 023 is provided between the first upper fence bar 021 and the second upper fence bar 022, the first upper fence bar 021 and the second upper fence bar 022 The ends of the two upper fence bars 022 can be rotatably connected to the connecting seat 023, and the connecting seat is respectively provided with a vertical first chute 023.1, a second chute 023.2 and a third chute 023.3 arranged symmetrically and obliquely, The guide piece 024 passes through the first chute 023.1 through the guide pin shaft 027 and is slidingly connected with the connecting seat 023. The guide piece 024 is also provided with a first guide groove 024.1 and a second guide groove 024.2, and the lower end of the extension spring 029 is fixed on the guide pin On the shaft 027, the upper end of the extension spring 029 is fixed on the connecting seat 023; the first pin shaft 025 and the second pin shaft 026 are arranged symmetrically on both sides of the guide pin shaft 027, and the first pin shaft 025 is slidably matched with the first guide pin shaft 027. In the groove 024.1 and the second chute 023.2, the second pin shaft 026 is slidably fitted in the second guide groove 024.2 and the third chute 023.3, and the first pin shaft 025 is against the lower end of the end of the first upper fence bar 021 , the second pin shaft 026 abuts against the lower end of the end of the second upper railing bar 022 . And the guide pin shaft 027 is fixedly connected with the operation line 3 for pulling the guide pin shaft to slide in the vertical direction. The operation line 3 is composed of a thread 3.1 arranged on the inner core and a line sleeve 3.2 fit and installed on the outer periphery of the thread 3.1. The end of 3.1 is fixedly connected on the guide pin shaft 027, the bottom of the connection seat 023 is provided with a base 028, and the end of the wire cover 3.2 is against the bottom wall of the bottom 028 seat.

Fig. 11 and Fig. 12 are another embodiment with a very simple structure of the chassis folding assembly of the present invention. Each bottom frame railing 01 is hinged on the mounting base 02 near the end. The mounting base 02 is provided with a hollow inner cavity. The pulley 04 is connected to the mounting base 02 through the rotating shaft 04.1 arranged horizontally at both ends. The operating line 3 is provided by the design. The thread 3.1 on the inner core and the line sleeve 3.2 fitted on the outer periphery of the thread 3.1 are composed, the sliding seat 05 is slidably fitted in the inner cavity of the mounting seat 02; The root leads are fixedly installed on the sliding seat 05 after being wound on the pulley 04, and the end of the wire cover is against the outer wall of the mounting seat 02.

The above are only descriptions of the preferred embodiments of the present invention, but should not be construed as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to vary. All changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims (9)

1. a folding game bed, comprise on four groups and enclose assembly, gusset assembly and underframe assemblies, often group is enclosed assembly by the first upper railings bar (21), the second upper railings bar (22) and on enclose joint assembly (20) composition, described underframe assemblies folds assembly (19) form by intersecting four the underframe railings (1) arranged in X-shaped and the underframe at crossover location place being located at four underframe railings (1), and described underframe folds assembly (19) and described underframe railing (1) is articulated, it is characterized in that: it also comprises makes four are enclosed joint assembly (20) and underframe and fold the operating means that assembly (19) is associated, described operating means comprises and makes upper railings bar and underframe railing (1) can respond underframe to fold the motion of assembly (19) thus make play yard switch to four operating lines (3) of folded state from open mode, one end correspondence of four described operating lines (3) is connected on four encloses joint assembly (20), the other end of operating line (3) collects along play yard underframe along play yard gusset again and is connected to underframe and folds assembly (19) after downward-extension.

2. folding game bed according to claim 1, is characterized in that: described every bar operating line (3) is all transversely collected to along play yard underframe along the threading path arranged vertical in play yard gusset cloth cover again and is connected to underframe and folds assembly (19) after downward-extension.

3. folding game bed according to claim 1, it is characterized in that: described underframe folds the mount pad (2) that assembly (19) comprises the crossover location place being located at four described underframe railings (1) and the tripper be symmetricly set in mount pad (2), described mount pad (2) comprises outer seat (2.1) and inner seat (2.2), and described four underframe railings (1) are articulated with described outer seat (2.1) near end, and the end of described underframe railing (1) is connected in described inner seat (2.2) by connector (14) pivotly, described outer seat (2.1) is provided with the cavity for accommodating described inner seat (2.2), and described inner seat (2.2) is snug fit in the cavity of described outer seat (2.1),

Described tripper comprises the first unlock piece (4) and for driving second unlock piece (6) of the first unlock piece (4) action, described the first unlock piece (4) is rotationally connected with on described outer seat (2.1) by the first bearing pin (5), and the other end of described operating line (3) is fixedly connected on the upper end of described the first unlock piece (4); The middle part of described the second unlock piece (6) is rotationally connected with in described inner seat (2.2) by the second bearing pin (8), and the upper fit of described the second bearing pin (8) is provided with the first torsion spring for resetting; One end of described the second unlock piece (6) is provided with and is folding in process for driving the lower end action of the first unlock piece (4) to make the first unlock piece (4) rotate and the swing arm (6.1) of draw operations line (3) action around the first bearing pin (5); The line cover (3.2) that described operating line (3) is installed on clue (3.1) periphery by the clue (3.1) and fit of being located at inner core forms, and the end of described clue (3.1) is fixedly installed in the upper end of described the first unlock piece (4), and the end of described line cover (3.2) is butted on the outer wall place of described outer seat (2.1).

4. folding game bed according to claim 3, it is characterized in that: it also comprises solution lock protective device, described solution lock protective device comprise by the 3rd bearing pin (11) be rotationally connected with inner seat (2.2) bottom inner chamber on swing component (10), the inwall of described outer seat (2.1) is provided with the draw-in groove (2.1.1) of the one end for engaging described swing component (10); The 3rd described bearing pin (11) fit is provided with the second torsion spring (12) for resetting.

5. folding game bed according to claim 1, it is characterized in that: described solution lock protective device also comprises the seat of honour (2.3), Connection Block (2.4) conciliates locking wire (13), described Connection Block (2.4) is installed between the described seat of honour (2.3) and inner seat (2.2), the lower end of described Connection Block (2.4) is fixedly connected with described inner seat (2.2), the upper elongatedness direction of described Connection Block (2.4) is provided with mounting hole (2.4.1), and the described seat of honour (2.3) are connected in described inner seat (2.2) by installation shaft (18) through described mounting hole (2.4.1), the upper end of described solution locking wire (13) is fixed in described installation shaft (18), the lower end of described solution locking wire (13) is fixed on described swing component (10).

6. folding game bed according to claim 1 and 2, it is characterized in that: between the first upper railings bar (21) and the second upper railings bar (22), be provided with Connection Block (23), the first described upper railings bar (21) and the end of the second upper railings bar (22) are all rotationally connected with on described Connection Block (23), the joint assembly for the first upper railings bar (21) and the second upper railings bar (22) to be turned to vertically folded state by level is also connected with between the first described upper railings bar (21) and the second upper railings bar (22), described joint assembly comprises the first curved bar (25), second curved bar (26) and the spring (27) for resetting, one end and the first upper railings bar (21) of described the first curved bar (25) offset, the middle part of described the first curved bar (25) is rotationally connected by the first rotating shaft (28) and described Connection Block (23), one end and the second upper railings bar (22) of described the second curved bar (26) offset, the middle part of described the second curved bar (26) is rotationally connected by the second rotating shaft (29) and described Connection Block (23), and the other end of described the first curved bar (25) is hinged by the other end of guiding bearing pin (30) with described the second curved bar (26), and described operating line (3) is fixedly connected on described guiding bearing pin (30), and described operating line vertically slides for drawing described guiding bearing pin (30), described spring (27) fit is installed on the periphery of described operating line (3), the line cover (3.2) that described operating line (3) is installed on clue (3.1) periphery by the clue (3.1) and fit of being located at inner core forms, the end of described clue (3.1) is fixedly connected on described guiding bearing pin (30), and the end of described line cover (3.2) is butted on the diapire with the base (24) being located at Connection Block (23) bottom.

7. folding game bed according to claim 6, it is characterized in that: described guiding bearing pin (30) is installed with the vertical connecting rod (31) arranged, described connecting rod (31) be provided with for through hollow cavity, and described spring (37) fit is installed on the periphery of described connecting rod (31), and the upper end of described spring (37) is butted on described connecting rod (31), the lower end of described spring (27) is butted on the upper end of described base (24).

8. folding game bed according to claim 6, it is characterized in that: one end fit of described the first curved bar (25) is provided with the first bearing pin (32), and the upper fit of described the first bearing pin (32) is provided with the first roller (33), and the end of the first described upper railings bar (21) is provided with the first deep-slotted chip breaker (21.1) for offseting with described the first roller (33); One end fit of the second curved bar (26) is provided with the second bearing pin (34), and the upper fit of described the second bearing pin (34) is provided with the second roller (35), and the end of the second described upper railings bar (22) is provided with the second deep-slotted chip breaker (22.1) for offseting with described the second roller (35).

9. the folding game bed according to claim 1 or 3, it is characterized in that: the lower parallel of four underframe railings (16) is provided with four auxiliary underframe railings (16), and one end of the railing of each auxiliary underframe is articulated with on described outer seat (2.1), the other end of described auxiliary underframe railing (16) is articulated with the footing of play yard.