CN106419311B

CN106419311B - Folding infant fence

Info

Publication number: CN106419311B
Application number: CN201611070205.2A
Authority: CN
Inventors: 陈苑祥; 李青石; 钟正怀
Original assignee: Master Baby Products Co ltd
Current assignee: Master Baby Products Co ltd
Priority date: 2016-11-26
Filing date: 2016-11-26
Publication date: 2023-06-27
Anticipated expiration: 2036-11-26
Also published as: CN106419311A

Abstract

The invention discloses a folding infant fence, wherein during the first folding, a left front folding hinge joint, a left rear folding hinge joint, a right front folding hinge joint and a right rear folding hinge joint are pressed down by hands to unlock keys, and then the keys are pushed inwards to enable all upper posts and lower posts connected to the joints to incline inwards and fold downwards, so that a guardrail ring pipe descends to the lowest point, the upper and lower folding steps are completed, and the first folding is completed; in the second folding process, the middle of the integral folding infant fence is taken as a middle line, and in the folding process, the first excessive connecting piece, the second excessive connecting piece, the front folding joint and the rear folding joint are taken as folding points, one end of the first excessive connecting piece, the second excessive connecting piece, the front folding joint and the rear folding joint are folded towards the other end, and after folding, secondary folding is formed, the space is compressed, the packaging volume is reduced, and the integral folding is in linkage without splitting; a soft cloth table is connected to one side of the top of the fence for temporarily changing baby diapers, dressing (dressing clothes) and the like.

Description

Folding infant fence

Technical Field

The invention relates to furniture products for limiting infant activities, in particular to a folding infant fence.

Background

The existing infant fence is generally formed by surrounding a plurality of fences through interconnection, a floor mat is placed in the fence after the fence is formed, an infant moves in the enclosed space, each fence is longitudinally arranged by a plurality of iron branches to form a fence type fence fan, all-metal manufacturing is carried out, the weight is quite heavy, one fence needs to be disassembled during folding, and then the fences are mutually stacked and recycled, so that the production cost is high, the folding is inconvenient due to the fact that the body is too heavy during installation, and the storage and transportation are inconvenient.

Disclosure of Invention

In order to solve the technical problems, the invention provides the folding infant fence which is convenient to fold, does not need to be disassembled and folded, has small volume after folding, reduces the production cost and the transportation cost and is convenient to open.

The scheme for solving the technical problems is as follows:

the utility model provides a folding infant rail, includes infant rail frame (A) and rail cloth cover (B), forms an infant activity space (C) after rail cloth cover (B) is overlapped tightly on infant rail frame (A), infant rail (A) frame is including falling to the ground round pipe (1), and the left front, left back, right front, right back of falling to the ground round pipe (1) are connected with respectively corresponding left front rotatory folding piece (11), left back rotatory folding piece (12), right front rotatory folding piece (13), right back rotatory folding piece (14); the left front rotary folding piece (11), the left rear rotary folding piece (12), the right front rotary folding piece (13) and the right rear rotary folding piece (14) are respectively connected with a left front lower column (111), a left rear lower column (121), a right front lower column (131) and a right rear lower column (141) which are corresponding to each other; the top of the left front lower column (111) is connected with a left front folding hinge joint (112), and the top of the left front folding hinge joint (112) is connected with a left front upper column (113); the top of the left rear lower column (121) is connected with a left rear folding hinge joint (122), and the top of the left rear folding hinge joint (122) is connected with a left rear upper column (123); the top of the right front lower column (131) is connected with a right front folding hinge joint (132), and the top of the right front folding hinge joint (132) is connected with a right front upper column (133); the top of the right rear lower column (141) is connected with a right rear folding hinge joint (142), and the top of the right rear folding hinge joint (142) is connected with a right rear upper column (143); the top of the left front upper column (113) is connected with a left upper rotary folding piece I (114); the top of the left rear upper column (123) is connected with a left upper rotary folding piece II (124); the top of the right front upper column (133) is connected with a right upper rotary folding piece I (134); the top of the right rear upper column (143) is connected with a right upper rotary folding piece II (144); the first left upper rotating folding piece (114), the second left upper rotating folding piece (124), the first right upper rotating folding piece (134) and the second right upper rotating folding piece (144) are connected with the guardrail ring pipe (2) together. The preferable scheme is as follows: the floor ring pipe (1) comprises a left floor semicircular pipe (101), a right floor semicircular pipe (102), a left front bottom pipe (103), a left rear bottom pipe (104), a right front bottom pipe (105) and a right rear bottom pipe (106); the two ends of the left floor semicircular pipe (101) are respectively and movably connected with a left front rotary folding piece (11) and a left rear rotary folding piece (12), and the left front rotary folding piece (11) and the left rear rotary folding piece (12) are respectively and fixedly connected with a corresponding left front bottom pipe (103) and a corresponding left rear bottom pipe (104); the two ends of the right landing semicircular tube (102) are respectively and movably connected with a right front rotary folding piece (13) and a right rear rotary folding piece (14), and the right front rotary folding piece (13) and the right rear rotary folding piece (14) are respectively and fixedly connected with a corresponding right front bottom tube (105) and a right rear bottom tube (106); a front folding joint (107) is hinged between the two pipe ends of the left front bottom pipe (103) and the right front bottom pipe (105); a rear folding joint (108) is hinged between the two pipe ends of the left rear bottom pipe (104) and the right rear bottom pipe (106);

the preferable scheme is as follows: the guardrail ring pipe (2) comprises a left U-shaped pipe body (21) and a right U-shaped pipe body (22), the left U-shaped pipe body (21) is connected to a first left upper rotating folding piece (114) and a second left upper rotating folding piece (124), and the right U-shaped pipe body (22) is connected to a first right upper rotating folding piece (134) and a second right upper rotating folding piece (144); and an excessive connecting piece I (23) and an excessive connecting piece II (24) are hinged between the corresponding pipe ends of the left U-shaped pipe body (21) and the right U-shaped pipe body (22), the excessive connecting piece I (23) vertically corresponds to the front folding joint (107), and the excessive connecting piece II (24) vertically corresponds to the rear folding joint (108).

The preferable scheme is as follows: the left front folding hinge joint (112), the left rear folding hinge joint (122), the right front folding hinge joint (132) and the right rear folding hinge joint (142) are all the same in joint structure.

The preferable scheme is as follows: the front folding joint (107) has the same joint structure as the rear folding joint (108).

The preferable scheme is as follows: the folding hinge joint structure comprises a left shell connecting piece (51), a right shell connecting piece (52), a left key cover (53) and a right key cover (54); the left shell connecting piece (51) comprises an external connector I (511) and an inner cavity I (512), a transverse plate (513) connected with a cavity wall is arranged in the inner cavity I (512), and a hollow column (5130) is erected from the middle of the transverse plate (513) to the cavity opening; the two sides of the transverse plate (513) are provided with inverted hook penetrating through holes (514), and the inverted hook penetrating through holes (514) are communicated with the first inner cavity (512); the inner bottom wall of the first inner cavity (512) is provided with a step (515) for hooking the back-off hook; notches (5131) are formed in two sides of the middle of the transverse plate (513), and the notches (5131) are connected with the inverted hook penetrating through holes (514) into a whole; the back surface of the left key cover (53) is extended with two back-off hooks (531) and two first unlocking push rods (532), the left key cover (53) is hooked on the step (515) through the back-off hooks penetrating through holes (514) by the two back-off hooks (531) to prevent reverse disengagement, and the two first unlocking push rods (532) respectively penetrate through the notches (5131) at the two sides and extend into the first inner cavity (512); the inner wall of the first inner cavity (512) is provided with two first sliding grooves (516); a first lock (517), a longitudinal return spring (518) and a second lock (519) are sequentially connected in series on the hollow column (5130); a rectangular through hole (5171) is formed in the middle of the first lock (517), and slopes (5172) matched with the two first unlocking push rods (532) for pushing the first lock (517) to slide to one side are respectively formed at two ends of the rectangular through hole (5171); a spring positioning column (5173) extends outside the first lock (517), a transverse return spring (5174) is arranged on the spring positioning column (5173), and the other end of the transverse return spring (5174) is propped against the inner wall of the first inner cavity (512); two lock posts (5175) extend from the back surface of the first lock piece (517); two positioning convex pieces (5191) extend outside the second locking piece (519), the two positioning convex pieces (5191) are respectively inserted into the first sliding grooves (516) to enable the second locking piece (519) to slide up and down in an oriented mode, two unlocking holes (5192) are formed in the cross section of the back face of the second locking piece (519), and the two unlocking holes (5192) are matched with the two locking columns (5175) to unlock and lock; the right shell connecting piece (52) comprises a second external connector (521) and a second inner cavity (522), and two sliding grooves (523) which are unlocked/locked with the second locking piece (519) in an up-and-down sliding way are arranged on the side wall of the second inner cavity (522); two second unlocking push rod holes (525) are formed in the bottom of the inner cavity II (522); the inner wall of the bottom of the inner cavity II (522) is provided with a back-off hook step (524); the back surface of the right button cover (54) is extended with two back-off hooks (541) and two second unlocking push rods (542), the right button cover (54) is inserted on the back-off hook step (524) through the two back-off hooks (541) to be hooked tightly so as to prevent back-off, and the two second unlocking push rods (542) penetrate through the second unlocking push rod holes (525) to be contacted with the top of the front surface of the second locking piece (519); a rivet (55) is inserted between the left shell connecting piece (51) and the right shell connecting piece (52), and the left shell connecting piece and the right shell connecting piece are hinged through the rivet (55); the side walls of the left shell connecting piece (51) and the right shell connecting piece (52) are respectively provided with a concave groove (510) and a dislocation wing piece (520) which are inserted into the other body in a dislocation way, and the dislocation wing pieces (520) of the left shell connecting piece and the right shell connecting piece are mutually inserted into the concave grooves (510) in the other body.

The preferable scheme is as follows: the structure of any folding joint comprises a left joint piece (61) and a right joint piece (62), the left joint piece (61) and the right joint piece (62) are connected through rivet insertion edges, wing grooves (610) and dislocation wing inserting pieces (620) which are inserted into each other in a staggered manner are formed in the side walls of the left joint piece (61) and the right joint piece (62), and the dislocation wing inserting pieces (620) are inserted into the wing grooves (610) in each other.

The preferable scheme is as follows: the edge of one end of the top of the fence cloth cover (B) is connected with a semicircular zipper (3), the zipper (3) is connected with a soft cloth table (4), the edge of the other side of the soft cloth table (4) is connected with a transverse tube (41), both ends of the transverse tube (41) are respectively provided with a clip (42), and the transverse tube (41) is respectively and transversely clamped on the front tube body and the rear tube body of the fence ring tube (2) through the clips (42) at both ends to be fixed; the middle of the soft cloth table (4) is provided with a buckle belt (43) for temporarily fixing the baby.

The preferable scheme is as follows: the top edge of the fence cloth cover (B) is connected with the guardrail ring pipe (2), the bottom is connected with the floor ring pipe (1), and a bottom pad is placed at the inner bottom of the fence cloth cover (B).

The preferable scheme is as follows: the fence cloth cover (B) is a net-shaped fence cloth cover.

The folding infant fence has the advantages that: 1. during the first folding, the keys of the left front folding hinge joint, the left rear folding hinge joint, the right front folding hinge joint and the right rear folding hinge joint are pressed down by hands to unlock, and then the joints are pushed inwards to enable all the upper columns and the lower columns connected to the joints to incline inwards and fold downwards, so that the guardrail ring pipe is lowered to the lowest point, the upper and lower folding steps are completed, and the first folding is completed; 2. in the second folding process, the middle of the integral folding infant fence is taken as a middle line, and in the folding process, the first excessive connecting piece, the second excessive connecting piece, the front folding joint and the rear folding joint are taken as folding points, one end of the first excessive connecting piece, the second excessive connecting piece, the front folding joint and the rear folding joint are folded towards the other end, and after folding, secondary folding is formed, the space is compressed, the packaging volume is reduced, and the integral folding is in linkage without splitting; 3. a soft cloth table is connected to one side of the top of the fence for temporarily changing baby diapers, dressing (dressing clothes) and the like.

Drawings

FIG. 1 is a perspective view of a product of the present invention;

FIG. 2 is a perspective view of the product of the present invention;

FIG. 3 is a perspective view of an infant fence of the present invention;

FIG. 4 is a perspective view of an infant fence of the present invention;

FIG. 5 is an exploded view of an infant barrier of the present invention;

FIG. 6 is a view showing the folded state of the product of the present invention applied to a baby crib;

FIG. 7 is a view of the product of the present invention in a folded configuration for use in a baby crib;

FIG. 8 is a folding view of the product of the present invention applied to an infant playpen;

FIG. 9 is a view of the product of the present invention in a folded configuration for use in a baby crib;

FIG. 10 is a folding view of the product of the present invention applied to a playpen;

FIG. 11 is a perspective view of a first lock of the product of the present invention;

FIG. 12 is an exploded view of the product of the present invention;

FIG. 13 is an exploded view of the folding articulation joint of the product of the present invention;

FIG. 14 is an exploded view of the folding articulation joint of the product of the present invention;

FIG. 15 is a perspective view of a left shell connector of the present invention;

FIG. 16 is a perspective view of a left shell connector of the present invention;

FIG. 17 is a perspective view of the right shell attachment of the product of the present invention;

FIG. 18 is a cross-sectional view of a folding articulation joint of the product of the present invention;

FIG. 19 is a cross-sectional view of a folding articulation joint of the product of the present invention;

fig. 20 is a split view of a folding joint of the product of the present invention.

Detailed Description

The foldable infant fence comprises an infant fence frame A and a fence cloth cover B, wherein the fence cloth cover B is tightly sleeved on the infant fence frame A to form an infant movable space C, the infant fence frame A comprises a floor ring pipe 1, and a left front rotary folding piece 11, a left rear rotary folding piece 12, a right front rotary folding piece 13 and a right rear rotary folding piece 14 which are respectively connected with the left front, the left rear, the right front and the right rear of the floor ring pipe 1; the left front rotary folding member 11, the left rear rotary folding member 12, the right front rotary folding member 13 and the right rear rotary folding member 14 are respectively connected with a left front lower column 111, a left rear lower column 121, a right front lower column 131 and a right rear lower column 141; the top of the left front lower column 111 is connected with a left front folding hinge joint 112, and the top of the left front folding hinge joint 112 is connected with a left front upper column 113; the top of the left rear lower column 121 is connected with a left rear folding hinge joint 122, and the top of the left rear folding hinge joint 122 is connected with a left rear upper column 123; the top of the right front lower column 131 is connected with a right front folding hinge joint 132, and the top of the right front folding hinge joint 132 is connected with a right front upper column 133; the top of the right rear lower column 141 is connected with a right rear folding hinge joint 142, and the top of the right rear folding hinge joint 142 is connected with a right rear upper column 143; the top of the left front upper column 113 is connected with a left upper rotary folding piece I114; the top of the left rear upper column 123 is connected with a left upper rotary folding piece II 124; the top of the right front upper column 133 is connected with a right upper rotating folding piece I134; the top of the right rear upper column 143 is connected with a right upper rotary folding piece II 144; the first left upper rotating folding piece 114, the second left upper rotating folding piece 124, the first right upper rotating folding piece 134 and the second right upper rotating folding piece 144 are connected with the guardrail ring pipe 2.

The floor ring pipe 1 comprises a left floor semicircular pipe 101, a right floor semicircular pipe 102, a left front bottom pipe 103, a left rear bottom pipe 104, a right front bottom pipe 105 and a right rear bottom pipe 106; the two ends of the left floor semicircular pipe 101 are respectively and movably connected with a left front rotary folding piece 11 and a left rear rotary folding piece 12, and the left front rotary folding piece 11 and the left rear rotary folding piece 12 are respectively and fixedly connected with a corresponding left front bottom pipe 103 and a corresponding left rear bottom pipe 104; the two ends of the right landing semicircular tube 102 are respectively and movably connected with a right front rotary folding piece 13 and a right rear rotary folding piece 14, and the right front rotary folding piece 13 and the right rear rotary folding piece 14 are respectively and fixedly connected with a right front bottom tube 105 and a right rear bottom tube 106 which correspond to each other; a front folding joint 107 is hinged between the two pipe ends of the left front bottom pipe 103 and the right front bottom pipe 105; a rear folding joint 108 is hinged between the two pipe ends of the left rear bottom pipe 104 and the right rear bottom pipe 106;

the guardrail ring pipe 2 comprises a left U-shaped pipe body 21 and a right U-shaped pipe body 22, the left U-shaped pipe body 21 is connected to a first left upper rotating folding piece 114 and a second left upper rotating folding piece 124, and the right U-shaped pipe body 22 is connected to a first right upper rotating folding piece 134 and a second right upper rotating folding piece 144; and an excessive connecting piece I23 and an excessive connecting piece II 24 are hinged between the corresponding pipe ends of the left U-shaped pipe body 21 and the right U-shaped pipe body 22 respectively, the excessive connecting piece I23 vertically corresponds to the front folding joint 107, and the excessive connecting piece II 24 vertically corresponds to the rear folding joint 108.

The front left folding hinge joint 112, the rear left folding hinge joint 122, the front right folding hinge joint 132 and the rear right folding hinge joint 142 have the same joint structure, and any folding hinge joint structure thereof comprises a left shell connecting piece 51, a right shell connecting piece 52, a left key cover 53 and a right key cover 54; the left shell connecting piece 51 comprises an external connector I511 and an inner cavity I512, a transverse plate 513 connected with the cavity wall is arranged in the inner cavity I512, and a hollow column 5130 is erected from the middle of the transverse plate 513 towards the cavity opening; the two sides of the transverse plate 513 are provided with inverted hook penetrating through holes 514, and the inverted hook penetrating through holes 514 are communicated with the first inner cavity 512; the inner bottom wall of the first cavity 512 is provided with a step 515 for hooking the back-off hook; notches 5131 are formed on two sides of the middle of the transverse plate 513, and the notches 5131 are connected with the back-off hook penetrating through holes 514 into a whole; the back surface of the left button cover 53 extends to form two first back-off hooks 531 and two first unlocking push rods 532, the left button cover 53 passes through the first back-off hooks 531 and the back-off hook penetrating through holes 514 to be hooked on the step 515 so as to prevent back-off, and the two first unlocking push rods 532 respectively pass through the notches 5131 at two sides and extend into the first inner cavity 512; the inner wall of the first cavity 512 is provided with two first sliding grooves 516; the hollow column 5130 is sequentially provided with a first lock 517, a longitudinal return spring 518 and a second lock 519 in a serial manner; a rectangular through hole 5171 is arranged in the middle of the first lock 517, and slopes 5172 matched with the two first unlocking push rods 532 for pushing the first lock 517 to slide to one side are respectively arranged at two ends of the rectangular through hole 5171; a spring positioning column 5173 extends outside the first lock 517, a transverse return spring 5174 is mounted on the spring positioning column 5173, and the other end of the transverse return spring 5174 is pressed against the inner wall of the first inner cavity 512; two lock posts 5175 extend from the back surface of the first lock 517; two positioning protruding members 5191 extend from the outer side of the second locking member 519, and the two positioning protruding members 5191 are respectively inserted into the two sliding grooves 516, so that the second locking member 519 slides up and down in an oriented manner, two unlocking holes 5192 are formed in the cross section of the back surface of the second locking member 519, and the two unlocking holes 5192 are matched with the two locking posts 5175 to unlock and lock; the right shell connecting piece 52 comprises a second external connecting piece 521 and a second inner cavity 522, and two sliding grooves 523 which are unlocked/locked with the second locking piece 519 in a sliding way up and down are arranged on the side wall of the second inner cavity 522; two second unlocking push rod holes 525 are formed in the bottom of the second inner cavity 522; the bottom inner wall of the second cavity 522 is provided with a back-off hook step 524; the back surface of the right button cover 54 extends to form two back-off hooks 541 and two second unlocking push rods 542, the right button cover 54 is inserted into the back-off hook steps 524 through the two back-off hooks 541 to be hooked tightly so as to prevent back-off, and the two second unlocking push rods 542 pass through the second unlocking push rod holes 525 to contact with the top of the front surface of the second locking piece 519; a rivet 55 is inserted between the left shell connecting piece 51 and the right shell connecting piece 52, and the two are hinged by the rivet 55; the side walls of the left shell connecting piece 51 and the right shell connecting piece 52 are respectively provided with a concave groove 510 and a dislocation wing piece 520 which are inserted into the other body in a dislocation way, and the dislocation wing pieces 520 of the two are inserted into the concave groove 510 in the other body, so that the rotation stability is improved, and the rotation deviation can not occur; under normal use, the tip of the first unlocking push rod 532 is aligned on the slope 5172, and in the state of waiting to be pressed, the two locking posts 5175 are pressed against the cross section of the second locking piece 519, which is not opposite to the two unlocking holes 5192, and one part of the second locking piece 519 is located on the first inner cavity 512, and the other part is located on the second inner cavity 522, so that the locking piece cannot be folded.

Any folding joint structure of the front folding joint 107 and the rear folding joint 108 comprises a left joint piece 61 and a right joint piece 62, the left joint piece 61 and the right joint piece 62 are connected through rivet insertion edges, side walls of the left joint piece 61 and the right joint piece 62 are respectively provided with a wing panel groove 610 and a dislocation wing insert 620 which are inserted into each other in a staggered manner, the dislocation wing insert 620 of the two is inserted into the wing panel groove 610 in each other, and the directions of the wing panel groove 610 and the dislocation wing insert 620 in normal use are transversely opposite.

The edge of one end of the top of the fence cloth cover B is connected with a semicircular zipper 3, the zipper 3 is connected with a soft cloth table 4, the edge of the other side of the soft cloth table 4 is connected with a transverse tube 41, both ends of the transverse tube 41 are respectively provided with a clip 42, and the transverse tube 41 is respectively and transversely clamped on the front tube body and the rear tube body of the guardrail ring tube 2 through the clips 42 at both ends to be fixed; a buckle belt 43 for temporarily fixing the baby is arranged in the middle of the soft cloth table 4; the soft cloth table 4 is detachable after being pulled open by the zipper 3, and is installed or not according to actual conditions.

The top edge of the fence cloth cover B is connected with the guardrail ring pipe 2, the bottom is connected with the floor ring pipe 1, and a bottom cushion is placed at the inner bottom of the fence cloth cover B.

The fence cloth cover B is a net-shaped fence cloth cover.

Folding process after normal use:

when folding, the left key cover 53 of the left front folding hinge joint 112 and the right front folding hinge joint 132 is pressed by force, the two first unlocking push rods 532 on the back surface of the left key cover 53 press the slope 5172, the rectangular through hole 5171 makes the first locking piece 517 slide to one side, after the left key cover 53 is pressed completely, the openings of the two unlocking holes 5192 of the second locking piece 519 are aligned with the two first unlocking push rods 532 of the first locking piece 517 respectively, the transverse return spring 5174 of the first locking piece 517 is in a compressed state (at this time, if the left key cover 53 is released, the transverse return spring 5174 returns the first locking piece 517 to return, the two first unlocking push rods 532 are pushed out reversely by the slope 5172 so as to eject the left key cover 53), at this time, the two second unlocking push rods 542 of the right key cover 54 push the second locking piece 519 residing in the first 512 part of the inner cavity into the second inner cavity 519, the second lock 519 is pushed completely into the second cavity 522, at this time, the first unlocking push rod 532 is pushed completely into the two unlocking holes 5192, at this time, the whole left front folding hinge joint 112 and the right front folding hinge joint 132 are pushed to inwards, the two joints start to hinge and fold, the left front lower column 111, the right front lower column 131, the left front upper column 113 and the right front upper column 133 incline inwards synchronously, at this time, the left front lower column 111 and the right front lower column 131 drive the left front rotating folding member 11 and the right front rotating folding member 13 incline inwards synchronously, the left front rotating folding member 11 and the right front rotating folding member 13 drive the left front bottom tube 103 and the right front bottom tube 105 to rotate synchronously, the left front bottom tube 103 and the right front bottom tube 105 drive the front folding joint 107 to turn synchronously, the wing grooves 610 and the misplaced wing blades 620 are arranged upwards, namely longitudinally, the left front folding hinge joint 112 is arranged, after the front right folding hinge joint 132 is folded, the front left folding hinge joint 112 and the front right folding hinge joint 132 rotate by 90 degrees, the front folding joint 107 also turns by 90 degrees (namely, the wing grooves 610 and the dislocation wing inserting sheets 620 which are transversely opposite to each other become longitudinally arranged), at this time, one side of the folding infant fence is folded, the rear left folding hinge joint 122 and the rear right folding hinge joint 142 on the other side begin to fold, the left key cover 53 of the rear left folding hinge joint 122 and the rear right folding hinge joint 142 is pressed by force first, the two first unlocking push rods 532 on the back surface of the left key cover 53 press the slope 5172, the rectangular through hole 5171 slides the first locking member 517 to one side, after the left key cover 53 is pressed completely, the openings of the two unlocking holes 5192 of the second locking member 519 are aligned with the two first unlocking push rods 532 of the first locking member 517 respectively, the lateral return spring 5174 of the first locking member 517 is in a compressed state (if the left key cover 53 is released, the lateral return spring 5174 returns the first locking member 517 back to reset by its own rebound force, the two first unlocking push rods 532 are pushed out reversely by the slope 5172 to eject the left key cover 53), at this time, the right key cover 54 is pressed down again, the two second unlocking push rods 542 of the right key cover 54 push the second locking member 519 residing in the first cavity 512 into the second cavity 522, the second locking member 519 is pushed completely into the second cavity 522, at this time, the first unlocking push rod 532 is pushed completely into the two unlocking holes 5192, at this time, the whole left rear folding hinge joint 122 and the right rear folding hinge joint 142 are pushed inwards, the two joints begin to hinge-fold, the left rear lower column 121, the right rear lower column 141, the left rear upper column 123 and the right rear upper column 143 incline synchronously, the left rear lower column 121 and the right rear lower column 141 synchronously drive the left rear folding hinge joint 122 and the right rear folding hinge joint 142 to incline inwards synchronously, the left rear folding hinge joint 122 and the right rear folding hinge joint 142 synchronously drive the left rear bottom tube 104 and the right rear bottom tube 106 to rotate, the left rear bottom tube 104 and the right rear bottom tube 106 synchronously drive the rear folding joint 108 to synchronously turn, so that the directions of the wing grooves 610 and the misplacement wing inserting pieces 620 are upward, namely, the longitudinal arrangement, and after the folding of the left rear folding hinge joint 122 and the right rear folding hinge joint 142 is finished, the left rear folding hinge joint 122 and the right rear folding hinge joint 142 rotate by 90 degrees, the rear folding joint 108 also turns by 90 degrees (namely, the wing grooves 610 and the misplacement wing inserting pieces 620 which transversely face each other become longitudinal arrangement), at the moment, the folding infant rail on the other side is folded, and the longitudinal folding is finished on the two sides.

During the longitudinal folding process, the guardrail ring pipe 2, the left landing semicircular pipe 101 and the right landing semicircular pipe 102 do not rotate (rotate).

After the longitudinal folding is completed, the next step is to turn over and fold, hold one end of the fence, forcefully lift the end to turn over the other end, the front folding joint 107, the rear folding joint 108, the transition connecting piece I23 and the front folding joint 107 are hinge points of the turning over and folding, and are central folding lines, and the two ends are symmetrically integrated after folding, so that the secondary folding is completed, namely the whole folding process is completed.

Claims

1. The utility model provides a foldable infant rail, includes infant rail frame (A) and rail cloth cover (B), forms an infant activity space (C) after rail cloth cover (B) cover is tight on infant rail frame (A), its characterized in that: the infant fence frame (A) comprises a floor ring pipe (1), and a left front rotating folding piece (11), a left rear rotating folding piece (12), a right front rotating folding piece (13) and a right rear rotating folding piece (14) which are corresponding to the left front, the left rear, the right front and the right rear of the floor ring pipe (1) are respectively connected with the left front rotating folding piece; the left front rotary folding piece (11), the left rear rotary folding piece (12), the right front rotary folding piece (13) and the right rear rotary folding piece (14) are respectively connected with a left front lower column (111), a left rear lower column (121), a right front lower column (131) and a right rear lower column (141) which are corresponding to each other; the top of the left front lower column (111) is connected with a left front folding hinge joint (112), and the top of the left front folding hinge joint (112) is connected with a left front upper column (113); the top of the left rear lower column (121) is connected with a left rear folding hinge joint (122), and the top of the left rear folding hinge joint (122) is connected with a left rear upper column (123); the top of the right front lower column (131) is connected with a right front folding hinge joint (132), and the top of the right front folding hinge joint (132) is connected with a right front upper column (133); the top of the right rear lower column (141) is connected with a right rear folding hinge joint (142), and the top of the right rear folding hinge joint (142) is connected with a right rear upper column (143); the top of the left front upper column (113) is connected with a left upper rotary folding piece I (114); the top of the left rear upper column (123) is connected with a left upper rotary folding piece II (124); the top of the right front upper column (133) is connected with a right upper rotary folding piece I (134); the top of the right rear upper column (143) is connected with a right upper rotary folding piece II (144); the first left upper rotating folding piece (114), the second left upper rotating folding piece (124), the first right upper rotating folding piece (134) and the second right upper rotating folding piece (144) are connected with the guardrail ring pipe (2) together;

the floor ring pipe (1) comprises a left floor semicircular pipe (101), a right floor semicircular pipe (102), a left front bottom pipe (103), a left rear bottom pipe (104), a right front bottom pipe (105) and a right rear bottom pipe (106); the two ends of the left floor semicircular pipe (101) are respectively and movably connected with a left front rotary folding piece (11) and a left rear rotary folding piece (12), and the left front rotary folding piece (11) and the left rear rotary folding piece (12) are respectively and fixedly connected with a corresponding left front bottom pipe (103) and a corresponding left rear bottom pipe (104); the two ends of the right landing semicircular tube (102) are respectively and movably connected with a right front rotary folding piece (13) and a right rear rotary folding piece (14), and the right front rotary folding piece (13) and the right rear rotary folding piece (14) are respectively and fixedly connected with a corresponding right front bottom tube (105) and a right rear bottom tube (106); a front folding joint (107) is hinged between the two pipe ends of the left front bottom pipe (103) and the right front bottom pipe (105); a rear folding joint (108) is hinged between the two pipe ends of the left rear bottom pipe (104) and the right rear bottom pipe (106);

the guardrail ring pipe (2) comprises a left U-shaped pipe body (21) and a right U-shaped pipe body (22), the left U-shaped pipe body (21) is connected to a first left upper rotating folding piece (114) and a second left upper rotating folding piece (124), and the right U-shaped pipe body (22) is connected to a first right upper rotating folding piece (134) and a second right upper rotating folding piece (144); the first excessive connecting piece (23) and the second excessive connecting piece (24) are hinged between the corresponding pipe ends of the left U-shaped pipe body (21) and the right U-shaped pipe body (22), the first excessive connecting piece (23) corresponds to the front folding joint (107) vertically, and the second excessive connecting piece (24) corresponds to the rear folding joint (108) vertically;

the joint structures of the left front folding hinge joint (112), the left rear folding hinge joint (122), the right front folding hinge joint (132) and the right rear folding hinge joint (142) are the same;

the folding hinge joint structure comprises a left shell connecting piece (51), a right shell connecting piece (52), a left key cover (53) and a right key cover (54); the left shell connecting piece (51) comprises an external connector I (511) and an inner cavity I (512), a transverse plate (513) connected with a cavity wall is arranged in the inner cavity I (512), and a hollow column (5130) is erected from the middle of the transverse plate (513) to the cavity opening; the two sides of the transverse plate (513) are provided with inverted hook penetrating through holes (514), and the inverted hook penetrating through holes (514) are communicated with the first inner cavity (512); the inner bottom wall of the first inner cavity (512) is provided with a step (515) for hooking the back-off hook; notches (5131) are formed in two sides of the middle of the transverse plate (513), and the notches (5131) are connected with the inverted hook penetrating through holes (514) into a whole; the back surface of the left key cover (53) is extended with two back-off hooks (531) and two first unlocking push rods (532), the left key cover (53) is hooked on the step (515) through the back-off hooks penetrating through holes (514) by the two back-off hooks (531) to prevent reverse disengagement, and the two first unlocking push rods (532) respectively penetrate through the notches (5131) at the two sides and extend into the first inner cavity (512); the inner wall of the first inner cavity (512) is provided with two first sliding grooves (516); a first lock (517), a longitudinal return spring (518) and a second lock (519) are sequentially connected in series on the hollow column (5130); a rectangular through hole (5171) is formed in the middle of the first lock (517), and slopes (5172) matched with the two first unlocking push rods (532) for pushing the first lock (517) to slide to one side are respectively formed at two ends of the rectangular through hole (5171); a spring positioning column (5173) extends outside the first lock (517), a transverse return spring (5174) is arranged on the spring positioning column (5173), and the other end of the transverse return spring (5174) is propped against the inner wall of the first inner cavity (512); two lock posts (5175) extend from the back surface of the first lock piece (517); two positioning convex pieces (5191) extend outside the second locking piece (519), the two positioning convex pieces (5191) are respectively inserted into the first sliding grooves (516) to enable the second locking piece (519) to slide up and down in an oriented mode, two unlocking holes (5192) are formed in the cross section of the back face of the second locking piece (519), and the two unlocking holes (5192) are matched with the two locking columns (5175) to unlock and lock; the right shell connecting piece (52) comprises a second external connector (521) and a second inner cavity (522), and two sliding grooves (523) which are unlocked/locked with the second locking piece (519) in an up-and-down sliding way are arranged on the side wall of the second inner cavity (522); two second unlocking push rod holes (525) are formed in the bottom of the inner cavity II (522); the inner wall of the bottom of the inner cavity II (522) is provided with a back-off hook step (524); the back surface of the right button cover (54) is extended with two back-off hooks (541) and two second unlocking push rods (542), the right button cover (54) is inserted on the back-off hook step (524) through the two back-off hooks (541) to be hooked tightly so as to prevent back-off, and the two second unlocking push rods (542) penetrate through the second unlocking push rod holes (525) to be contacted with the top of the front surface of the second locking piece (519); a rivet (55) is inserted between the left shell connecting piece (51) and the right shell connecting piece (52), and the left shell connecting piece and the right shell connecting piece are hinged through the rivet (55); the side walls of the left shell connecting piece (51) and the right shell connecting piece (52) are respectively provided with a concave groove (510) and a dislocation wing piece (520) which are inserted into the other body in a dislocation way, and the dislocation wing pieces (520) of the left shell connecting piece and the right shell connecting piece are mutually inserted into the concave grooves (510) in the other body.

2. A folding infant playpen according to claim 1 wherein: the front folding joint (107) has the same joint structure as the rear folding joint (108).

3. A folding infant playpen according to claim 2 wherein: the structure of any folding joint comprises a left joint piece (61) and a right joint piece (62), the left joint piece (61) and the right joint piece (62) are connected through rivet insertion edges, wing grooves (610) and dislocation wing inserting pieces (620) which are inserted into each other in a staggered manner are formed in the side walls of the left joint piece (61) and the right joint piece (62), and the dislocation wing inserting pieces (620) are inserted into the wing grooves (610) in each other.

4. A folding infant playpen according to claim 1 wherein: the edge of one end of the top of the fence cloth cover (B) is connected with a semicircular zipper (3), the zipper (3) is connected with a soft cloth table (4), the edge of the other side of the soft cloth table (4) is connected with a transverse tube (41), both ends of the transverse tube (41) are respectively provided with a clip (42), and the transverse tube (41) is respectively and transversely clamped on the front tube body and the rear tube body of the fence ring tube (2) through the clips (42) at both ends to be fixed; the middle of the soft cloth table (4) is provided with a buckle belt (43) for temporarily fixing the baby.

5. A folding infant playpen according to claim 1 wherein: the top edge of the fence cloth cover (B) is connected with the guardrail ring pipe (2), the bottom is connected with the floor ring pipe (1), and a bottom pad is placed at the inner bottom of the fence cloth cover (B).

6. A folding infant playpen according to claim 1 wherein: the fence cloth cover (B) is a net-shaped fence cloth cover.