WO2016050128A1

WO2016050128A1 - Foldable game bed

Info

Publication number: WO2016050128A1
Application number: PCT/CN2015/088322
Authority: WO
Inventors: 茅鸿勇
Original assignee: 茅鸿勇
Priority date: 2014-09-30
Filing date: 2015-08-28
Publication date: 2016-04-07
Also published as: CN104273984B; US20170290444A1; CN104273984A

Abstract

A foldable game bed comprises four groups of upper periphery components, lateral periphery components and bottom frame components. A bottom frame retracting component (19) is pivotally connected to bottom frame rails (1). The foldable game bed further comprises an operating device for associating four upper periphery joint components (20) with the bottom frame retracting component (19). The operating device comprises four operating lines (3) allowing upper periphery rails and the bottom frame rails (1) to respond to the movement of the bottom frame retracting component (19) so as to switch the game bed from an unfolded state to a folded state. One end of each of the four operating lines (3) is correspondingly connected to one of the four upper periphery joint components (20), and the other end of each of the operating lines (3) extends downwardly along the lateral periphery of the game bed and then is connected to the bottom frame retracting component (19) along the bottom frame of the game bed in a gathered manner. The foldable game bed is convenient to install, low in cost, convenient to operate, and safe and reliable, and synchronous folding of the bottom frame rails and the upper periphery rails can be achieved.

Description

Folding play yard

Technical field

The invention relates to the field of game beds, and in particular to a folding game bed.

Background technique

The baby playpen is the safe place for the baby to sleep and play, whether it is at home or on the go. The game bed can also create a safe area for your baby, especially if your baby is already climbing or has a strong curiosity. When a child grows up and his mobility increases, the game bed can be a safe haven if you need to do other things, such as doing work or doing housework. In order to take up less space and move easily, the game bed is usually easy to fold. The prior art folding play yard includes four upper railings, four poles, and feet disposed at the lower ends of the four poles, and the lower ends of the feet are usually provided with rollers. When folding, the four upper railings and the bottom frame are respectively bent or pivoted by the joint structure, so that the upper railing, the four side walls and the bottom frame are all close to the middle, thereby reducing the volume. However, the problem is that the structure of the prior art chassis folding device is complicated, and the joint structure of the chassis folding device and the four upper railings cannot be folded simultaneously, and the folding operation is troublesome. To this end, a foldable child fence has emerged on the market that can be quickly and easily opened for use and folding for transport or storage, central assembly to a central position, and lower assembly by cable Connected to the upper component. However, the problem is that the upper and lower linear motion of the cable response center assembly is required to open and fold the upper assembly, which uses each set of cables and cams mounted on the upper lower legs of the lower corner assembly. The response of the follower slider is achieved, that is, the cable is extended upward via a side bar that is pivotally coupled to the same lower corner assembly, and then the cable is split into two strands to be aligned with the ends of the two adjacent upper arms. Connection, cable threading and installation is very difficult, time-consuming and laborious, and due to the complicated threading of the cable, the phenomenon of jamming may occur accidentally. Due to the complicated threading process of the cable, the yield of the finished product is reduced, which undoubtedly improves the manufacturing. cost.

Summary of the invention

The technical problem to be solved by the present invention is to provide a folding play yard which is convenient to install, low in cost, convenient in operation, and capable of realizing synchronous folding of the underframe railing and the upper railing, and being safe and reliable.

The technical solution adopted by the present invention to solve the above problems is: a folding game bed comprising four sets of upper peripheral components, a side wrapping component and a bottom frame assembly, each set of upper surrounding components being composed of a first upper railing and a second upper railing a railing and an upper joint assembly, the chassis assembly consisting of four undercarriage rails arranged in an X shape and a chassis folding assembly disposed at an intersection of the four chassis rails, and The undercarriage assembly is pivotally coupled to the undercarriage rail; it further includes an operating device for associating the four upper joint assemblies with the chassis collapsible assembly, the operating device including the upper railing and The undercarriage can ring The movement of the chassis assembly assembly is such that the play yard is switched from the open state to the four operation lines in the folded state, one end of the four operation wires is correspondingly connected to the four upper joint assemblies, and the other end of the operation line is along the play yard. The side panels extend downwardly and are then coupled to the chassis folding assembly along the play yard chassis.

Compared with the prior art, the present invention has an advantage in that the folding game bed is provided with an operating device for enabling the upper railing and the undercarriage rail to switch from the open state to the folding state in response to the movement of the chassis folding assembly. The four operation lines of the state, one end of the four operation lines are correspondingly connected to the four upper joint assemblies, and the other end of the operation line extends downward along the side of the game bed, and then is connected to the chassis folding assembly along the bottom of the game bed. During the actual installation, the operation line is arranged along the side of the play yard, and one end of each operation line is connected with the corresponding upper joint assembly, and the other end of the operation line is connected to the chassis folding assembly, and the structure is simple. The installation is very convenient, and the synchronous folding of the undercarriage railing and the upper railing can be realized, which is safe and reliable.

DRAWINGS

1 is a schematic structural view of a folding play yard of the present invention.

2 is a schematic view showing the structure of the folding play yard of the present invention, and the bottom railing and the bottom frame folding assembly are removed by half.

FIG. 3 is an enlarged schematic structural view of the chassis folding assembly of FIG.

4 is a schematic structural view of the chassis folding assembly of the folding play yard of the present invention in an exploded state.

Fig. 5 is a structural schematic view showing the folding process of the chassis folding assembly of the folding play yard of the present invention.

Figure 6 is a structural schematic view of the upper railing assembly of the folding play yard of the present invention in an exploded state.

Figure 7 is a schematic view showing the structure of the upper railing assembly of the folding play yard of the present invention.

Figure 8 is a structural schematic view of another embodiment of the upper railing assembly of the folding play yard of the present invention in an exploded state.

Figure 9 is a schematic view showing the structure of another embodiment of the upper railing assembly of the folding play yard of the present invention.

Fig. 10 is a structural schematic view showing still another embodiment of the upper railing assembly of the folding play yard of the present invention in an exploded state.

Figure 11 is a cross-sectional view showing another structure of the chassis folding assembly of the folding play yard of the present invention.

12 is another schematic structural view of the undercarriage folding assembly of the folding play yard of the present invention during folding process

Figure 1-5: 1 chassis 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 hole, 3 operating line, 3.1 clue, 3.2 wire sleeve, 4 first unlocking member, 4.1 limit groove, 5 first pin shaft, 6 second unlocking member, 6.1 swing arm, 7 limit post, 8 second pin shaft, 9 roller, 10 swinging member, 11 Third pin shaft, 12 second torsion spring, 13 unlocking wire, 14 connecting piece, 15 cover, 15.1 handle, 16 auxiliary chassis railing, 17 fixing column, 18 mounting shaft, 19 chassis folding assembly;

In Figure 6-7: 3 operation line, 3.1 thread, 3.2 line sleeve, 20 upper circumference joint assembly, 21 first upper railing, 21.1 first curved groove, 22 second upper railing, 22.1 second curved groove , 23 connector, 23.1 chute, 24 base, 25 first song Rod, 26 second crank, 27 spring, 28 first shaft, 29 second shaft, 30 guide pin, 31 connecting rod, 32 first rotating pin, 33 first roller, 34 second rotating pin, 35 The second roller.

In Figure 8-9: 3 operating lines, 3.1 leads, 3.2 sets, 210 first upper railings, 210.1 first curved slots, 220 second upper railings, 220.1 second curved slots, 230 connectors, 230.1 Chute, 240 fixed pin, 250 crank, 260 swing, 260.1 extension, 270 tension spring, 280 first shaft, 290 second shaft, 300 guide pin, 310 limit seat, 320 first pin, 330 The first roller, the 340 second pin, and the 350 second roller.

In Figure 10: 3 operating lines, 3.1 leads, 3.2 line sets, 021 first upper railings, 022 second upper railings, 023 joints, 023.1 first chutes, 023.2 second chutes, 023.4 third chutes 024 guide member, 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 tension spring.

In Figure 11-12: 01 chassis railing, 02 mounting seat, 3 operating line, 3.1 lead, 3.2 line set, 04 pulley, 04.1 shaft, 05 slide, 06 handle.

detailed description

The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

As shown in FIG. 1 , a folding play yard includes four sets of upper peripheral components, side wrapping components and a chassis assembly, each set of upper surrounding components being composed of a first upper railing 21 , a second upper railing 22 and upper a surrounding joint assembly 20, the chassis assembly consisting of four undercarriage rails 1 arranged in an X-shaped crossover and a chassis collapsing assembly 19 disposed at the intersection of the four undercarriage rails 1 and said The chassis retracting assembly 19 is pivotally coupled to the undercarriage railing 1; it further includes operating means for associating the four upper siege joint assemblies 20 with the chassis retracting assembly 19, the operating means including The upper railing and the undercarriage railing 1 can respond to the movement of the chassis folding assembly 19 to switch the play yard from the open state to the four operating lines 3 in the folded state, and one end of the four operating wires 3 is correspondingly connected to the four operating wires 3 The surrounding joint assembly 20, the other end of the operating wire 3 extends downward along the side of the play yard and is then coupled to the undercarriage assembly 19 along the play yard chassis.

As shown in FIG. 1 and FIG. 2, in the specific embodiment, each of the operation wires 3 extends along the vertical direction of the vertical arrangement of the play yard side wrapping sleeves, and then along the game bed chassis along the horizontal direction. The collection is connected to the chassis folding assembly 19.

In the present embodiment, as shown in FIGS. 2, 3, 4, and 5, the chassis folding assembly 19 includes a mounting seat 2 disposed at an intersection of the four chassis rails 1 and symmetrically disposed in the mounting seat 2. The unlocking device, the mounting seat 2 comprises an outer seat 2.1 and an inner seat 2.2, and four undercarriage rails 1 are hinged to the outer seat 2.1 near the end, and the end of the undercarriage rail 1 is pivotally connected by a connecting member 14 The inner seat 2.2 is provided; 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 into the cavity of the outer seat 2.1;

The unlocking device comprises a first unlocking member 4 and a second unlocking member 6 for driving the action of the first unlocking member 4. The first unlocking member 4 is rotatably coupled to the outer seat 2.1 via the first pin shaft 5, and the other end of the operating wire 3 Fixedly connected to the upper end of the first unlocking member 4; The middle portion of the second unlocking member 6 is rotatably coupled to the inner seat 2.2 via the second pin shaft 8, and the second pin shaft 8 is fitted with a first torsion spring for resetting; the second unlocking member 6 is provided at one end thereof. The lower end action for driving the first unlocking member 4 during the folding process causes the first unlocking member 4 to rotate around the first pin shaft 5 and pull the swing arm 6.1 of the operation wire 3; the operation wire 3 is provided by the inner core 3.1 and the sleeve is assembled on the outer sleeve of the lead 3.1, and the end of the clue 3.1 is fixedly mounted on the upper end of the first unlocking member 4, and the end of the sleeve 3.2 is at the outer wall of the outer seat 2.1. The structure of the operation wire used in the present invention is similar to the structure of the brake wire used in bicycles, motorcycles, etc., and is also called a control cable. It is a common product on the market, and the technician can purchase it according to the need, and will not be described here.

It further includes an unlocking protection device including a swinging member 10 rotatably coupled to the inner cavity of the bottom of the inner seat 2.2 via the third pin shaft 11. The inner wall of the outer seat 2.1 is provided with a card for engaging one end of the rocking member 10. The groove 2.1.1; the third pin 11 is fitted with a second torsion spring 12 for resetting. The unlocking protection device further includes an upper seat 2.3, a connecting base 2.4 and an unlocking line 13. The connecting base 2.4 is installed between the upper seat 2.3 and the inner seat 2.2. The lower end of the connecting base 2.4 is fixedly connected with the inner seat 2.2, and the connecting seat 2.4 is provided with an extension direction. There is a waist hole 2.4.1, and the upper seat 2.3 passes through the mounting hole 18 through the waist hole 2.4.1 and is connected to the inner seat 2.2. The upper end of the unlocking wire 13 is fixed to the mounting shaft 18, and the lower end of the unlocking wire 13 is fixed to The swinging member 10 is on. In this way, the setting of the unlocking protection device can effectively prevent the misoperation caused by the small animals such as cats and dogs from entering the bottom of the game bed, and is more safe and 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 folding or opening operation smoother.

The first unlocking member 4 is provided with an arc-shaped guiding groove 4.1, and the guiding groove 7 is slidably fitted in the guiding groove 4.1, and the guiding post 7 is fixedly mounted 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 restricted, which is more safe and reliable.

The upper surface of the outer seat 2.1 is provided with a cover 15, and the middle portion of the cover 15 is sleeved and mounted on the outer peripheral surface of the upper seat 2.3. The cover 15 is laterally provided with a handle 15.1 for attaching the strap, and the handle 15.1 is exposed. Cover 15. In this way, the unlocking device and the unlocking protection device in the mounting seat can be better protected, safe and reliable.

A fixing post 17 is fixedly mounted at a position of the inner seat 2.2 near the second unlocking member 6. One end of the first torsion spring abuts against the inner wall of the second unlocking member 6, and the other end of the first torsion spring abuts the fixing post 17. In this way, the second unlocking member 6 can be effectively restrained, and the second torsion spring can be fixed. The second unlocking member 6 has a good limiting effect, and the elastic locking effect of the second unlocking member is good.

The end of the undercarriage rail 1 is hinged to one end of the connecting member 14, and the other end of the connecting member 14 is hinged to the inner seat 2.2.

The lower portions of the four undercarriage rails 16 are arranged in parallel with four auxiliary chassis rails 16, and one end of the railing of each auxiliary chassis is hinged to the outer seat 2.1, the auxiliary chassis railing 16 The other end is hinged to the foot of the play yard. In this way, the synchronization of the underframe railing is better, and it can play a certain buffering effect, and the folding effect is better.

When the game bed needs to be folded, the strap attached to the handle 15.1 is pulled up, and the upper seat 2.3 is moved upward. The unlocking line on the mounting shaft 18 drives the swinging member 10 out of the slot 2.1.1 of the outer seat 2.1, that is, The inner seat 2.2 can be driven to slide upward along the inner cavity of the outer seat 2.1, and the upper seat 2.3 moves upward through a certain length of the waist-shaped hole 2.4.1 on the connecting seat 2.4, and the inner seat 2.2 continues to move upward until the second unlocking member 6 The swing arm 6.1 drives the roller 9 at the lower end of the first unlocking member 4 to cause the first unlocking member 4 to rotate about the first pin shaft 5 and to pull the operation wire 3 to move.

As shown in FIGS. 6 and 7, the upper railing rail joint assembly is provided with a connecting seat 23 between the first upper railing rail 21 and the second upper railing rail 22, and the ends of the first upper railing rail 21 and the second upper railing rail 22 The first upper railing 21 and the second upper railing 22 are connected between the first upper railing rail 21 and the second upper railing 22 to rotate from a horizontal state to a vertical state. The joint assembly in a folded state, the joint assembly includes a first curved lever 25, a second curved lever 26, and a spring 27 for resetting, one end of the first curved lever 25 abutting against the first upper railing 21, the first curved lever 25 The middle portion is rotatably connected to the connecting seat 23 through the first rotating shaft 28, one end of the second curved rod 26 is abutted against the second upper railing 22, and the middle portion of the second curved rod 26 is rotatably connected to the connecting seat 23 through the second rotating shaft 29, and The other end of the first curved lever 25 is hinged to the other end of the second curved lever 26 via the guide pin 30, and the operating wire 3 is fixedly coupled to the guide pin 30, and the operating wire is used to pull the guide pin 30 along the vertical Sliding in the straight direction, the spring 27 is fitted on the outer circumference of the operation wire 3; the operation wire 3 is provided by the clue 3.1 and the sleeve provided on the inner core Leads attached to the outer periphery of the line set 3.1 3.2 composition 3.1 trail end fixedly connected to the guide pin 30, the end of the line is 3.2 against the sleeve connected to the bottom wall of the seat bottom 23 is provided in the base 24.

The connecting seat 23 is vertically provided with a sliding groove 23.1 for guiding the sliding of the guiding pin 30, and the guiding pin 30 is slidably 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 abuts against the base 24.

A vertical connecting rod 31 is fixedly mounted on the guiding pin 30. The connecting rod 31 is provided with a hollow inner cavity for passing therethrough, and the spring 37 is sleeved and mounted on the outer circumference of the connecting rod 31, and the upper end of the spring 37 is connected to the connecting rod 31. The rod 31 has a lower end of the spring 27 that abuts against the upper end of the base 24.

A first pin 32 is sleeved on one end of the first crank rod 25 , and a first roller 33 is sleeved on the first pin 32 , and an end of the first upper rail 21 is provided for the first roller 33 . a first curved groove 21.1; a second pin 34 is sleeved on one end of the second curved rod 26, and a second roller 35 is fitted on the second pin 34, and the second upper rail 22 is The end is provided with a second curved groove 22.1 for abutting against the second roller 35.

The joint assembly described above is symmetrically disposed about the axis of the operating wire 3.

The upper end of the operation lead 3 drives the guide pin shaft 30 to slide downward along the sliding slot 23.1 on the connecting seat 23, and drives the first curved lever 25 and the second curved lever 26 respectively. Around the first axis of rotation 28 and the second rotation When the shaft 29 rotates, the upper ends of the first curved lever 25 and the second curved lever 26 are lifted upward, and the first curved lever 25 and the second curved lever 26 are disengaged from the first upper railing rail 21 and the second upper railing rail 22, respectively. And the friction between the first curved bar 25 and the first upper railing rail 21 and the second curved rail 26 and the second upper railing 22 can be effectively reduced by the cooperation between the roller and the curved slot, so that the disengaging action It is smoother. Then, the first upper railing rail 21 and the second upper railing rail 22 can be rotated and folded around the connecting seat 23, so that the bottom railing and the upper railing can be synchronously folded, and the operation is very convenient.

As shown in FIGS. 8 and 9, another embodiment of the upper railing joint assembly of the present invention is such that a connecting seat 230 is disposed between the first upper railing rail 210 and the second upper railing rail 220, and the first upper railing 210 And the end of the second upper railing 220 is rotatably connected to the connecting seat 230. The first upper railing 210 and the second upper railing 220 are also connected between the first upper railing 210 and the second upper railing 210. The railing 220 is rotated from a horizontal state to a vertically folded joint assembly. The joint assembly includes a curved rod 250, a swing rod 260 and a tension spring 270 for resetting. One end of the curved rod 250 is opposite to the first upper railing 210. The middle portion of the rod 250 is rotatably connected to the connecting seat 230 through the first rotating shaft 280. The upper end of the swinging rod 260 is opposite to the second upper railing 220. The middle portion of the swinging rod 260 is rotatably connected to the connecting base 230 via the second rotating shaft 290. The middle portion is provided with an extension 260.1, and the other end of the curved rod 250 is hinged with the extension 260.1 of the middle of the swing rod 260 through the guide pin 300. The lower portion of the swing rod 260 is connected with a lower portion for pulling the swing rod 260 and the other end is The operating line 3 connected to the game bed underframe folding assembly, the tension spring 270 One end is fixed to the connecting seat 230, and the other end of the tension spring 270 is fixed to the lower end of the swinging rod 260 by a fixing pin 240. The operation wire 3 is composed of a clue 3.1 provided on the inner core and a wire sleeve 3.2 fitted to the outer periphery of the clue 3.1. The end of the clue 3.1 is fixedly connected to the lower portion of the swing bar 260 and the clue 3.1 is substantially laterally disposed, and the bottom of the connecting base 230 A limiting seat 310 is disposed. The limiting seat 310 is provided with a mounting hole for receiving the wire sleeve 3.2. The end of the wire sleeve 3.2 abuts against the inner wall of the mounting hole. As shown in FIGS. 8 and 9, the operation wire 3 is disposed substantially horizontally, so that the threading path in the side cover of the play yard can be firstly disposed in the horizontal direction and then collected downward to the chassis, thereby effectively avoiding the game. The effect of the aesthetics of the bed side wrapping cloth.

A sliding groove 230.1 for guiding the sliding of the guide pin 300 is vertically disposed on the connecting base 230, and the guiding pin 30 is slidably fitted in the sliding groove 230.1.

The first pin 320 is sleeved on one end of the curved bar 250, and the first roller 330 is sleeved on the first pin 320, and the end of the first upper rail 210 is provided for sliding engagement with the first roller 330. The first curved slot 210.1; the upper end of the swinging rod 260 is fitted with the second pin 340, and the second pin 340 is fitted with the second roller 350, and the end of the second upper railing 220 is provided. The second arcuate groove 220.1 is slidably engaged with the second roller 350.

As shown in FIG. 10, another embodiment of the upper railing joint assembly of the present invention is: a connecting seat 023 is disposed between the first upper railing 021 and the second upper railing 022, and the first upper railing 021 and the first The ends of the two upper railings 022 can be rotatably connected to the connecting seat 023, and the connecting seat is respectively provided with a vertical first chute 123.1, a symmetrically inclined second chute 023.2 And the third sliding slot 023.3, the guiding member 024 is slidably connected to the connecting seat 023 through the first sliding slot 023.1 through the guiding pin shaft 027, and the guiding member 024 is further provided with a first guiding slot 024.1 and a second guiding slot 024.2, the tension spring The lower end of the 029 is fixed on the guiding pin shaft 027, and the upper end of the tension spring 029 is fixed on the connecting seat 023; the first pin shaft 025 and the second pin shaft 026 are symmetrically disposed on both sides of the guiding pin shaft 027, and the first pin shaft The second pin shaft 026 is slidably fitted into the second guiding groove 024.2 and the second sliding groove 023.3, and the first pin shaft 025 and the first upper railing rail are slidably fitted into the first guiding groove 024.1 and the second sliding groove 023.2. The lower end of the end of the 021 abuts, and the second pin 026 abuts the lower end of the end of the second upper rail 022. And the guide pin 027 is fixedly connected with an operation wire 3 for sliding the guide pin shaft in the vertical direction, and the operation wire 3 is composed of a clue 3.1 provided on the inner core and a wire sleeve 3.2 fitted on the outer circumference of the clue 3.1, the clue The end of 3.1 is fixedly connected to the guide pin shaft 027, and the bottom of the connecting seat 023 is provided with a base 028, and the end of the wire sleeve 3.2 abuts against the bottom wall of the bottom 028 seat.

11 and FIG. 12 are another very simple embodiment of the chassis retracting assembly of the present invention. The chassis retracting assembly 19 includes a mounting base 02 disposed at the intersection of the four undercarriage railings 01, and four The bottom frame railing 01 is hinged to the mounting seat 02 near the end, and the mounting seat 02 is provided with a hollow inner cavity. The pulley 04 is rotatably connected to the mounting seat 02 through the rotating shaft 04.1 which is disposed laterally at both ends, and the operating line 3 is provided. The inner core clue 3.1 and the sleeve are assembled on the outer sleeve of the lead 3.1, and the slide 05 is slidably fitted to the inner cavity of the mounting seat 02; and the upper end of the sliding seat 05 is provided with a handle 06 for attaching the strap, each of which is provided. The root clues are wound around the pulley 04 and fixedly mounted on the slide 05, and the end of the sleeve is abutted against the outer wall of the mount 02.

The foregoing is merely illustrative of the preferred embodiments of the invention, and is not to be construed as limiting. The present invention is not limited to the above embodiments, and its specific structure allows variations. Various changes made within the scope of the invention of the invention are within the scope of the invention.

Claims

A folding play yard comprising four sets of upper peripheral components, side wrapping components and a bottom frame assembly, each set of upper surrounding components being composed of a first upper railing (21), a second upper railing (22) and an upper joint The assembly (20) is composed of four undercarriage rails (1) arranged in an X-shaped crossover and a chassis folding assembly (19) disposed at an intersection of the four undercarriage rails (1). And the chassis folding assembly (19) is pivotally connected to the undercarriage railing (1); and further comprising: the four upper joint assemblies (20) and the chassis are received An associated operating device of the assembly (19), the operating device comprising enabling the upper railing and the undercarriage railing (1) to be responsive to movement of the chassis collapsing assembly (19) to switch the play yard from an open state to a folded state Four operation lines (3) of the state, one end of the four operation lines (3) is correspondingly connected to the four upper joint assemblies (20), and the other end of the operation line (3) extends downward along the side of the game bed. Then, it is connected to the chassis folding assembly (19) along the game bed underframe.
The folding play yard according to claim 1, characterized in that each of the operation wires (3) extends radially downward along the vertical arrangement of the play yard side wrapping fabric and then along the bottom of the game bed. The rack is gathered in a lateral direction to be connected to the chassis folding assembly (19).
The folding play yard according to claim 1, wherein said chassis folding assembly (19) includes a mounting seat provided at an intersection of said four undercarriage rails (1) (2) And an unlocking device symmetrically disposed in the mount (2), the mount (2) comprising an outer seat (2.1) and an inner seat (2.2), and the four undercarriage rails (1) are near the end The portion is hinged to the outer seat (2.1), and the end of the undercarriage rail (1) is pivotally connected to the inner seat (2.2) by a connecting member (14); 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 into the cavity of the outer seat (2.1);

The unlocking device comprises a first unlocking member (4) and a second unlocking member (6) for driving the action of the first unlocking member (4), the first unlocking member (4) passing through the first pin ( 5) rotationally coupled to the outer seat (2.1), the other end of the operating wire (3) is fixedly coupled to the upper end of the first unlocking member (4); the second unlocking member ( The middle portion of 6) is rotatably coupled to the inner seat (2.2) via a second pin shaft (8), and the second pin shaft (8) is fitted with a first torsion spring for resetting; One end of the second unlocking member (6) is provided with a lower end action for driving the first unlocking member (4) during the folding process, so that the first unlocking member (4) rotates around the first pin shaft (5) and The swing arm (6.1) of the traction operation line (3); the operation line (3) consists of a clue (3.1) provided on the inner core and a sleeve (3.2) fitted on the outer circumference of the clue (3.1). And the end of the thread (3.1) is fixedly mounted on the upper end of the first unlocking member (4), and the end of the wire sleeve (3.2) is at the outer wall of the outer seat (2.1) .
A folding play yard according to claim 3, further comprising an unlocking protection device, said The unlocking protection device comprises a swinging member (10) pivotally connected to the inner cavity of the bottom of the inner seat (2.2) via a third pin (11), the inner wall of the outer seat (2.1) being provided for engaging a card slot (2.1.1) at one end of the swinging member (10); the third pin shaft (11) is fitted with a second torsion spring (12) for resetting.
The folding play yard according to claim 1, wherein the unlocking protection device further comprises a top seat (2.3), a connecting seat (2.4) and an unlocking line (13), and 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 to the inner seat (2.2), and the connecting seat (2.4) is extended. The direction is provided with a waist hole (2.4.1), and the upper seat (2.3) passes through the waist hole (2.4.1) through the mounting shaft (18) and is connected to the inner seat (2.2) The upper end of the unlocking wire (13) is fixed to the mounting shaft (18), and the lower end of the unlocking wire (13) is fixed to the swinging member (10).
The folding play yard according to claim 1 or 2, wherein a connecting seat (23) is provided between the first upper railing rail (21) and the second upper railing rail (22), the first The ends of the upper railing (21) and the second upper railing (22) are rotatably connected to the connecting seat (23), the first upper railing (21) and the second upper railing Also coupled between (22) is a joint assembly for rotating the first upper railing (21) and the second upper railing (22) from a horizontal state to a vertically folded state, the joint assembly including the first curved rod (25), a second curved rod (26) and a spring (27) for resetting, one end of the first curved rod (25) is opposite to the first upper railing (21), the first curved piece a middle portion of the rod (25) is rotatably coupled to the connecting seat (23) via a first rotating shaft (28), and one end of the second curved rod (26) is abutted against a second upper railing (22), The middle portion of the second curved rod (26) is rotatably coupled to the connecting seat (23) through the second rotating shaft (29), and the other end of the first curved rod (25) passes through the guiding pin (30) Hinged to the other end of the second curved rod (26), and the operation a thread (3) fixedly coupled to the guide pin (30), and the operating wire for pulling the guide pin (30) to slide in a vertical direction, the spring (27) The sleeve is mounted on the outer circumference of the operation wire (3); the operation wire (3) is composed of a clue (3.1) provided on the inner core and a wire sleeve (3.2) fitted on the outer circumference of the clue (3.1). The end of the thread (3.1) is fixedly connected to the guiding pin (30), and the end of the wire sleeve (3.2) is abutted against the base (24) provided at the bottom of the connecting seat (23). Bottom wall.
The folding play yard according to claim 6, characterized in that: the guide pin (30) is fixedly mounted with a vertically disposed connecting rod (31), and the connecting rod (31) is provided for a hollow inner cavity passing through, and the spring (37) is sleeved and mounted on the outer circumference of the connecting rod (31), and the upper end of the spring (37) abuts the connecting rod (31) The lower end of the spring (27) abuts the upper end of the base (24).
The folding play yard according to claim 6, wherein one end of the first curved lever (25) is fitted with a first pin (32), and the first pin (32) The upper sleeve is fitted with a first roller (33), and the end of the first upper railing (21) is provided with a first curved slot (21.1) for abutting against the first roller (33). ; A second pin (34) is sleeved on one end of the two curved levers (26), and the second roller (35) is fitted on the second pin shaft (34), and the second roller is mounted on the second pin (34). The end of the railing (22) is provided with a second arcuate groove (22.1) for abutting against the second roller (35).
A folding play yard according to claim 1 or 3, characterized in that the lower portions of the four undercarriage rails (16) are arranged in parallel with four auxiliary chassis rails (16), and the railings of each of the auxiliary chassis One end is hinged to the outer seat (2.1), and the other end of the auxiliary chassis rail (16) is hinged to the foot of the play yard.