Guardrail structure and crib thereof

Abstract

The utility model belongs to the technical field of crib production, and discloses a guardrail structure and a crib thereof, which comprise a crib body, liftable U-shaped guardrail edges arranged on three sides of the crib body, a U-shaped guardrail arranged above the U-shaped guardrail edges, a telescopic rod arranged on the U-shaped guardrail edges and a telescopic fixed adjusting structure arranged on the U-shaped guardrail edges, the telescopic fixed adjusting structures are arranged at the two right-angle positions of the U-shaped guardrail edge, the number of the telescopic rods is multiple sets, the telescopic rods are fixedly installed on the top wall face of the U-shaped guardrail edge, and the top ends of the telescopic rods are fixedly connected with the U-shaped guardrail. The problems that the height of a guardrail of a traditional baby crib is fixed, an adult can conveniently hold a baby, replace a bed sheet or clean the baby crib through lifting of the guardrail are solved, and compared with the prior art, the guardrail lifting structure is arranged below the crib body, is safer and prevents collision.

Description

TECHNICAL FIELD

[0001] The utility model belongs to baby crib production technical field, concretely relates to a guard bar structure and baby crib thereof. BACKGROUND

[0002] A guard bar structure and baby crib thereof are common articles of baby articles, and the baby crib not only protects the baby but also meets the comfort of adults.

[0003] The prior art discloses a baby crib guard bar structure (CN216166518U) and relates to the technical field of baby crib protection, aiming to solve the problem of fixed height of the guard bar of the traditional baby crib, which brings inconvenience to different adults when they pick up, put down or change bed sheets or clean the baby crib, and the applicability is weak; the height of the upper fixed plate on the fixed plate can be controlled through the telescopic plate on the guard bar, so as to facilitate the adults to pick up and put down the baby, change the bed sheets and clean the baby crib; through the cooperation between the bottom rod at the bottom of the support column and the gear, the rack, the extension rod and the limiting mechanism, the effect of quick disassembly and assembly is achieved, the replacement efficiency and maintenance are improved, and the protruding limiting block is pushed out when the extension rod end enters the limiting hole.

[0004] The lifting structure of the prior art is arranged on the legs of the baby crib at four edges and exceeds the bed body, the guard bar is lifted through the movement of the internal gear, and in the using process, the lifting structure can be collided, which causes the bumping and causes the safety hazard to the adults, and secondly, the guard bar can only be lifted and cannot be adjusted, and for the baby who can stand, the height of the guard bar is not enough and also causes the safety hazard.

[0005] Therefore, the utility model provides a guard bar structure and baby crib thereof. UTILITY MODEL CONTENTS

[0006] In order to solve the above-mentioned technical problems of causing the bumping and the safety hazard to the baby, the basic concept of the technical scheme of the utility model is that: a bed body is provided, three sides of the bed body are provided with U-shaped guard bar edges which can be lifted, a U-shaped guard bar is arranged above the U-shaped guard bar edge, a telescopic rod and a telescopic fixed adjusting structure which can be telescopic are arranged on the U-shaped guard bar edge, the telescopic fixed adjusting structure is arranged at two right angle positions of the U-shaped guard bar edge, the number of the telescopic rods is multiple groups, the telescopic rods are fixedly installed on the top wall surface of the U-shaped guard bar edge, and the top end of the telescopic rod is fixedly connected with the U-shaped guard bar.

[0007] One side of the two ends of the U-shaped guard bar edge is provided with a guard bar edge, a plurality of guard rails are fixedly connected above the guard bar edge, the top of the plurality of guard rails is fixedly connected with a guard bar, the guard bar and the two end wall surfaces of the U-shaped guard bar are both provided with buckle structures for fixation, and a rotating structure is arranged between the bed body and the guard bar edge.

[0008] As an optimal implementation form of the utility model, the telescopic fixing and adjusting structure comprises a rotating strip, a clamping groove, a secondary lever and a primary lever, the number of the clamping grooves is multiple groups, the multiple groups of clamping grooves are respectively arranged on the outer wall of one side of the secondary lever, the bottom of the secondary lever is fixedly connected with a U-shaped guardrail edge, the primary lever is movably sleeved in the cavity of the secondary lever, and an avoiding groove is arranged on the side wall surface of the primary lever close to the clamping groove.

[0009] The top of the primary lever is fixedly connected with an elastic block, a pressing rod is arranged in the cavity of the primary lever, the top end of the pressing rod is fixedly connected with the elastic block, one end of the rotating strip is rotationally connected with the pressing rod, the rotating strip passes through the avoiding groove, the other end of the rotating strip is in a curved state, the curved end of the rotating strip is clamped in the clamping groove, the inner wall of the primary lever is fixedly connected with a compression spring, the other end of the compression spring is fixedly connected with the rotating strip, and the bottom of the primary lever is fixedly connected with a pressing spring.

[0010] The two right-angled ends of the U-shaped guardrail are both provided with sliding grooves, and the elastic block is movably arranged in the sliding grooves.

[0011] As an optimal implementation form of the utility model, the secondary lever and the primary lever are both hollow tubes, the diameter of the primary lever is smaller than that of the secondary lever, and the clamping groove is a circular hole.

[0012] As an optimal implementation form of the utility model, the bottom end of the pressing rod is rotationally connected with a rotating shaft, and the rotating shaft rotationally connects one end of the rotating strip.

[0013] As an optimal implementation form of the utility model, the rotating structure comprises a central shaft, a rotating lever and a fixed lever, one end of the fixed lever is fixedly connected with the guardrail edge, the other end of the fixed lever is fixedly connected with the rotating lever, the rotating lever is slidingly connected with the central shaft, two metal pipes are fixedly connected with the central shaft, and the other ends of the two metal pipes are fixedly connected with the bed body.

[0014] As an optimal implementation form of the utility model, the buckle structure comprises a convex fixed part and a concave fixed part, the convex fixed part is arranged on the side wall of the two ends of the U-shaped guardrail, the concave fixed part is arranged on the end wall surface of the guardrail, and the convex fixed part and the concave fixed part are matched to form clamping fixation.

[0015] As an optimal implementation form of the utility model, the convex fixed part comprises a first connecting plate and a convex part, the first connecting plate is fixedly connected on the U-shaped guardrail side wall, the convex part is a columnar body, and the convex part is fixedly arranged together with the first connecting plate; the concave fixed part comprises a second connecting plate, a rotating shaft and a concave buckle, the second connecting plate is fixedly connected with the guardrail end face, each concave buckle is composed of two square plates and two semicircular rings, the two semicircular rings are rotationally connected through the rotating shaft, the square plate is fixedly connected on the outer side wall of each semicircular ring, two springs are fixedly installed on the concave fixed part, and the other ends of the two springs are fixedly connected with the square plates on the corresponding side respectively.

[0016] A baby crib comprises a baby crib body provided with all the guardrail structures, and the baby crib body comprises a lifting structure arranged below the bed body, a supporting cylinder is fixedly arranged on the bottom wall surface of the bed body, the lifting structure comprises lifting legs, lifting rods, threaded columns, connecting rods, first bevel gears and supporting rods, the number of the lifting legs and the lifting rods is four, the four lifting legs are fixedly installed on the bottom wall surface at the four end portions of the U-shaped guardrail side, the four lifting rods are slidingly sleeved with the corresponding lifting legs, the bottom portions of the two lifting rods on the left and right sides are fixedly installed with vertical plates, one supporting rod is fixedly connected on each vertical plate, the upper ends of the two supporting rods are fixedly connected with a horizontal plate, and the supporting cylinder is fixedly connected in the middle portion of the horizontal plate.

[0017] The top portion of the horizontal plate is symmetrically rotationally installed with two first bevel gears, the two first bevel gears are in a hollow state, the two first bevel gears are rotationally connected with the horizontal plate, the hollow cavities of the two first bevel gears are threadedly connected with the threaded columns, and the threaded columns movably penetrate through the two ends of the horizontal plate.

[0018] The top ends of the two threaded columns are fixedly connected with a connecting rod, and the connecting rod is located in the middle portion of the two lifting legs.

[0019] As an optimal implementation form of the utility model, the inside of the supporting rod is hollow, and the other end of the threaded column penetrates through the horizontal plate and extends into the inside of the supporting rod.

[0020] As an optimal implementation form of the utility model, the lifting structure further comprises rotating shaft structures, there are two groups of rotating shaft structures, one first bevel gear is connected with each rotating shaft structure, the rotating shaft structure comprises a second bevel gear, a handle and a supporting plate, the supporting plate is fixedly connected with the horizontal plate, the second bevel gear is engaged with the first bevel gear, the second bevel gear is rotationally connected on the supporting plate, the handle is rotationally connected with the supporting plate and fixedly connected with the second bevel gear.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. The baby crib guardrail structure, the height of the guardrail is fixed and cannot be changed in the traditional baby crib, the height of the guardrail can be adjusted by rotating the side handle, and the baby can be held, the bed sheet can be replaced, or the baby crib can be cleaned, compared with the prior art, the guardrail lifting structure is arranged below the bed body, the lifting structure is arranged more safely, and collision is prevented.

[0023] 2. The baby crib guardrail structure, the telescopic guardrail considers the safety of babies at different stages, the height of the guardrail can be adjusted independently when the baby can stand, compared with the prior art, the safety is increased by considering the use of babies at different stages.

[0024] 3. One of the guardrails can be rotated and lowered, in addition to the lifting structure lowering the guardrail, the rotated guardrail can hold the child more quickly, when the child grows up, the bed body can be used like a chair, compared with the prior art, the functionality of the baby crib is increased.

[0025] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. DRAWINGS

[0026] In the drawings:

[0027] Figure 1 It is the whole effect schematic view of the utility model;

[0028] Figure 2 It is the telescopic rod structure schematic view of the utility model;

[0029] Figure 3 It is the telescopic rod structure A enlarged schematic view of the utility model;

[0030] Figure 4 It is the rotating structure schematic view of the utility model;

[0031] Figure 5 It is the side structure schematic view of the utility model;

[0032] Figure 6 It is the buckle structure schematic view of the utility model;

[0033] Figure 7 It is the lifting structure schematic view of the utility model;

[0034] Figure 8 It is the lifting structure B enlarged schematic view of the utility model.

[0035] In the figure: 1, U-shaped guardrail; 2, telescopic fixed adjusting structure; 3, U-shaped guardrail edge; 4, lifting leg; 5, lifting rod; 6, lifting structure; 7, bed body; 8, rotating structure; 9, elastic block; 10, guardrail; 11, buckle structure; 12, second bevel gear; 13, support rod; 14, first bevel gear; 15, threaded column; 16, connecting rod; 17, pressing rod; 18, rotating shaft; 19, rotating strip; 20, clamping groove; 21, two-stage rod; 22, one-stage rod; 23, pressing spring; 24, center shaft; 25, rotating rod; 26, fixed rod; 27, handle; 28, protruding fixed part; 29, concave fixed part; 30, concave buckle; 31, rotating shaft; 32, guardrail edge; 33, railing; 34, extrusion spring; 35, support cylinder; 36, telescopic rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model.

[0037] A guardrail structure, such as Figure 1 , Figure 2 and Figure 3As shown, three sides of the bed body 7 are provided with U-shaped guardrails 3 that can be lifted, and the upper part of the U-shaped guardrails 3 is provided with a U-shaped guardrail 1, and the U-shaped guardrails 3 are provided with telescopic rods 36 and telescopic fixing adjusting structures 2, the telescopic fixing adjusting structures 2 are arranged at two right-angled positions of the U-shaped guardrails 3, the number of the telescopic rods 36 is multiple groups, the telescopic rods 36 are fixedly installed on the top wall surface of the U-shaped guardrails 3, the top end of the telescopic rod 36 is fixedly connected with the U-shaped guardrail 1, the secondary rod 21 and the primary rod 22 are both hollow tubes, and the diameter of the primary rod 22 is smaller than that of the secondary rod 21, the shape of the clamping groove 20 is a circular hole, the telescopic fixing adjusting structure 2 comprises the rotating strip 19, the clamping groove 20, the secondary rod 21 and the primary rod 22, the number of the clamping grooves 20 is multiple groups, and the multiple groups of clamping grooves 20 are respectively arranged on the one side outer wall of the secondary rod 21, the bottom of the secondary rod 21 is fixedly connected with the U-shaped guardrail 3, the primary rod 22 is movably sleeved in the cavity of the secondary rod 21, the side wall surface of the primary rod 22 close to the clamping groove 20 is provided with an avoiding slot, the top of the primary rod 22 is fixedly installed with the elastic block 9, the cavity of the primary rod 22 is provided with the pressing rod 17, the top end of the pressing rod 17 is fixedly connected with the elastic block 9, one end of the rotating strip 19 is rotatably connected with the pressing rod 17, the rotating strip 19 passes through the avoiding slot, the other end of the rotating strip 19 is in a curved state, the curved end of the rotating strip 19 is clamped in the clamping groove 20, the inner wall of the primary rod 22 is fixedly connected with the extrusion spring 34, the other end of the extrusion spring 34 is fixedly connected with the rotating strip 19, the bottom of the primary rod 22 is fixedly connected with the pressing spring 23, the two right-angled ends of the U-shaped guardrail 1 are both provided with sliding grooves, the elastic block 9 is movably installed in the sliding groove, and the lower end of the pressing rod 17 is rotatably connected with the rotating shaft 18, and one end of the rotating shaft 18 is rotatably connected with the rotating strip 19.

[0038] By pressing the two elastic blocks 9 on the U-shaped guardrail 1, the elastic blocks 9 drive the primary rod 22 and the pressing rod 17 to move downward, the pressing rod 17 drives the rotating shaft 18 to rotate, the rotating strip 19 is pressed by the extrusion spring 34, the extrusion spring 34 is in a tight state, the rotating strip 19 can come out of the clamping groove 20, while the two elastic blocks 9 on the U-shaped guardrail 1 are pressed, the primary rod 22 will press the pressing spring 23, and the primary rod 22 can freely move in the cavity of the secondary rod 21, after adjusting to the desired height, the elastic block 9 is released, the elastic block 9 drives the pressing rod 17, the pressing rod 17 drives the rotating strip 19 to rotate on the rotating shaft 18, the extrusion spring 34 is in an extension state and abuts against the pressing rod 17, the rotating strip 19 is clamped in the clamping groove 20, and the whole guardrail is no longer telescopic, and the telescopic of the guardrail considers the safety of babies at different stages, when the baby can stand, the height of the guardrail can be adjusted automatically, compared with the prior art, the safety is increased by considering the use of babies at different stages.

[0039] A guardrail structure, such as Figure 1 , Figure 4 ,Figure 5 and Figure 6 As shown in FIGS. 1-2, a crib guardrail structure is provided, comprising a U-shaped guardrail 1, a bed body 7 and a guardrail edge 3. Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown in FIGS. 1-2, a crib guardrail structure is provided, comprising a U-shaped guardrail 1, a bed body 7 and a guardrail edge 3. The two ends of the U-shaped guardrail edge 3 are provided with a guardrail edge 32, and a plurality of guardrails 33 are fixedly connected above the guardrail edge 32. The top of the plurality of guardrails 33 is fixedly connected with a guardrail 10. The guardrail 10 is provided with a buckle structure 11 for fixation between the two end walls of the U-shaped guardrail 1. A rotating structure 8 is provided between the bed body 7 and the guardrail edge 32. The rotating structure 8 comprises a central shaft 24, a rotating rod 25 and a fixed rod 26. One end of the fixed rod 26 is fixedly connected with the guardrail edge 32, and the other end of the fixed rod 26 is fixedly connected with the rotating rod 25. The rotating rod 25 is slidingly connected with the central shaft 24. Two metal pipes are fixedly connected with the central shaft 24. The other ends of the two metal pipes are fixedly connected with the bed body 7. The buckle structure 11 comprises a protruding fixed part 28 and a concave fixed part 29. The protruding fixed part 28 is arranged on the side walls of the two ends of the U-shaped guardrail 1. The concave fixed part 29 is arranged on the two end walls of the guardrail 10. The protruding fixed part 28 and the concave fixed part 29 are matched to form a clamping fixation. The protruding fixed part 28 comprises a first connecting plate and a protruding part. The first connecting plate is fixedly connected with the side walls of the U-shaped guardrail 1. The protruding part is a columnar body, which is fixedly arranged with the first connecting plate. The concave fixed part 29 comprises a second connecting plate, a rotating shaft 31 and a concave buckle 30. The second connecting plate is fixedly connected with the end face of the guardrail 10. Each concave buckle 30 is composed of two square plates and two semicircular rings. The two semicircular rings are rotatably connected through the rotating shaft 31. The square plates are fixedly connected with the outer side walls of each semicircular ring. Two springs are fixedly installed on the concave fixed part 29. The other ends of the two springs are fixedly connected with the corresponding square plates.

[0040] By holding the guardrail 10 and rotating it, the guardrail 10 drives the guardrails 33 to rotate, and the guardrails 33 drive the guardrail edge 32 to rotate downward. The guardrail edge 32 drives the rotating rod 25 to rotate on the central shaft 24 through the fixed rod 26. The entire surface of the guardrail is turned over. The rotating guardrail can hold the child more quickly. When the child grows up, the bed body can be used like a chair for the child. Compared with the prior art, the functionality of the crib is increased. If it is necessary to close the guardrail, the guardrail 10 is rotated in the same way. After the guardrail is erected, the protruding fixed part 28 is clamped into the two semicircular notches through the protruding part. The protruding fixed part 28 is clamped with the concave buckle 30 of the concave fixed part 29. The guardrail 10 is clamped on the U-shaped guardrail 1. If it is necessary to open, the two square plates of the two concave buckles 30 are pried open. The two square plates press the springs. The notches produced by the two concave buckles 30 become larger. The protruding fixed part 28 can come out of the notches. Then the U-shaped guardrail 1 is separated from the guardrail 10.

[0041] A crib is providedFigure 7 and Figure 8 As shown in the figure, it comprises a baby bed body, the baby bed body comprises a lifting structure 6 arranged below the bed body 7, the bottom wall of the bed body 7 is fixedly provided with a supporting cylinder 35, the lifting structure 6 comprises lifting legs 4, lifting rods 5, threaded columns 15, connecting rods 16, first bevel gears 14 and supporting rods 13, the number of the lifting legs 4 and the lifting rods 5 is four, the four lifting legs 4 are respectively fixedly installed on the bottom wall of the four ends of the U-shaped guardrail side 3, the four lifting rods 5 are slidably sleeved with the corresponding lifting legs 4, the bottom of the two lifting rods 5 on the left and right sides is fixedly installed with a vertical plate, each vertical plate is fixedly connected with a supporting rod 13, the upper ends of the two supporting rods 13 are fixedly connected with a horizontal plate, the supporting cylinder 35 is fixedly connected in the middle of the horizontal plate, the top of the horizontal plate is rotatably installed with two first bevel gears 14, the two first bevel gears 14 are in a hollow state, the shafts of the two first bevel gears 14 are rotatably connected with the horizontal plate, the threaded columns 15 are threadedly connected in the hollow cavities of the two first bevel gears 14, the threaded columns 15 are movably penetrated through the two ends of the horizontal plate, the top ends of the two threaded columns 15 are fixedly connected with a connecting rod 16, the connecting rod 16 is located in the middle of the two lifting legs 4, the two ends of the connecting rod 16 are fixedly connected with the two lifting legs 4 on the corresponding side, the inside of the supporting rod 13 is hollow, the other end of the threaded column 15 penetrates through the horizontal plate and extends into the inside of the supporting rod 13, the lifting structure 6 further comprises a rotating shaft structure, the rotating shaft structure has two groups, each rotating shaft structure is connected with a first bevel gear 14, the rotating shaft structure comprises a second bevel gear 12, a handle 27 and a supporting plate, the supporting plate is fixedly connected with the horizontal plate, the second bevel gear 12 is engaged with the first bevel gear 14, the second bevel gear 12 is rotatably connected with the supporting plate, the handle 27 is rotatably connected with the supporting plate and fixedly connected with the second bevel gear 12.

[0042] By rotating the handles 27 on the rotating shafts on the two sides at the same time, the two groups of handles 27 drive the second bevel gears 12 to rotate on the supporting plate, the second bevel gears 12 drive the first bevel gears 14 to rotate, by rotating the first bevel gears 14, the threaded columns 15 can move up and down, the up-and-down movement of the threaded columns 15 drives the two connecting rods 16 to move up and down, the four lifting legs 4 are fixedly connected with the U-shaped guardrail side 3, so the U-shaped guardrail side 3 drives the telescopic fixing adjusting structure 2, the telescopic rod 36 and the U-shaped guardrail 1 to move up and down, so as to realize the lifting function of the three-sided guardrail, the guardrail lifting structure is arranged below the bed body, the lifting structure is arranged more safely to prevent collision.

[0043] The utility model discloses a working principle: through pressing two elastic blocks 9 on U-shaped guardrail 1, elastic block 9 drives primary lever 22 and presser bar 17 downward, and presser bar 17 drives rotating shaft 18, and makes rotating strip 19 rotate, and rotating strip 19 presses extrusion spring 34, and extrusion spring 34 is in the state of being tight, and rotating strip 19 can come out from the slot 20, and when pressing two elastic blocks 9 on U-shaped guardrail 1, primary lever 22 will press spring 23, and primary lever 22 can be freely moved in the cavity of secondary lever 21, and after adjusting to the height that wants, release elastic block 9, and elastic block 9 drives presser bar 17, and presser bar 17 drives rotating strip 19 to rotate on rotating shaft 18, and extrusion spring 34 is in the state of being telescopic, and presses against presser bar 17, and rotating strip 19 is clamped in slot 20, and the whole guardrail does not telescopic again, and the telescopic of guardrail considers the safety of baby in different stages, when baby can stand, can independently adjust guardrail height, compared with prior art, considers the use of baby in different stages, and the safety is increased, by holding guardrail 10 and rotating, guardrail 10 drives guardrail 33 to rotate, and guardrail 33 drives guardrail edge 32 to rotate downward, and guardrail edge 32 makes rotating rod 25 rotate on central shaft 24 through fixed rod 26, and the whole surface guardrail is turned over, and the rotating guardrail can hold the child more quickly, when the child grows up, and bed body can be used like chair for the child, compared with prior art, the functionality of the crib is increased, if needing to close guardrail, and the same reason rotates guardrail 10, when the guardrail stands up, and the protruding fixed part 28 is clamped into two semicircular notches through protruding part, and the protruding fixed part 28 is clamped with the concave shape buckle 30 of concave fixed part 29, and guardrail 10 is clamped on U-shaped guardrail 1, if needing to open, then the two square plates of two concave buckles 30 are pried open, and the two square plates extrude spring, and the gap of two concave buckles 30 becomes larger, and the protruding fixed part 28 can come out from the gap, then makes U-shaped guardrail 1 and guardrail 10 separate, by two people rotating handle 27 on two rotating shafts simultaneously, and two groups of handle 27 drive second bevel gear 12 to rotate on support plate, and second bevel gear 12 makes first bevel gear 14 rotate, by rotating first bevel gear 14, and threaded column 15 can move up and down, and the up-and-down movement of threaded column 15 makes two connecting rods 16 drive four lifting legs 4 to move up and down, and four lifting legs 4 are fixedly connected with U-shaped guardrail edge 3, so that U-shaped guardrail edge 3 drives telescopic fixed adjusting structure 2, telescopic rod 36 and U-shaped guardrail 1 to move up and down, thereby the three-side guardrail realizes the lifting function, and the guardrail lifting structure is arranged below bed body, and the lifting structure is arranged more safely, and prevents collision.

[0044] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. A barrier structure, characterised in that, The utility model provides a kind of bed, including The bed body (7), the three sides of the bed body (7) are provided with the U-shaped guardrail side (3) that can be lifted, the top of U-shaped guardrail side (3) is provided with U-shaped guardrail (1), U-shaped guardrail side (3) is equipped with telescopic telescopic rod (36) and telescopic fixed adjusting structure (2), telescopic fixed adjusting structure (2) is arranged at the two right angle positions of U-shaped guardrail side (3), the number of telescopic rod (36) is multiple groups, telescopic rod (36) is fixedly installed on the top wall surface of U-shaped guardrail side (3), the top end of telescopic rod (36) is fixedly connected with U-shaped guardrail (1); The side of the two ends of the U-shaped guardrail side (3) is provided with the guardrail side (32), the top of the guardrail side (32) is fixedly connected with multiple groups of railings (33), the top of the multiple groups of railings (33) is commonly fixedly connected with guardrail (10), and the two end walls of U-shaped guardrail (1) are provided with buckle structure (11) for fixing, and the bed body (7) and the guardrail side (32) are provided with rotating structure (8).

2. A barrier structure according to claim 1, characterised in that The telescopic fixed adjusting structure (2) includes rotating strip (19), clamping groove (20), secondary lever (21) and primary lever (22), the number of clamping groove (20) is multiple groups, and multiple groups of clamping groove (20) are respectively arranged on the one side outer wall of secondary lever (21), the bottom of secondary lever (21) is fixedly connected with U-shaped guardrail side (3), primary lever (22) is movably sleeved in the cavity of secondary lever (21), and the side wall of primary lever (22) close to clamping groove (20) is provided with an avoiding slot; The top of the primary lever (22) is fixedly installed with the elastic block (9), the cavity of the primary lever (22) is provided with the pressing rod (17), the top end of the pressing rod (17) is fixedly connected with the elastic block (9), one end of the rotating strip (19) is rotatably connected with the pressing rod (17), the rotating strip (19) passes through the avoiding slot, the other end of the rotating strip (19) is in a curved state, the curved end of the rotating strip (19) is clamped in the clamping groove (20), the inner wall of the primary lever (22) is fixedly connected with the extrusion spring (34), the other end of the extrusion spring (34) is fixedly connected with the rotating strip (19), and the bottom of the primary lever (22) is fixedly connected with the pressing spring (23). The two right angle ends of the U-shaped guardrail (1) are provided with sliding grooves, and the elastic block (9) is movably installed in the sliding grooves.

3. A barrier structure according to claim 2, wherein The secondary lever (21) and the primary lever (22) are both hollow tubes, and the diameter of the primary lever (22) is smaller than the diameter of the secondary lever (21), and the clamping groove (20) is a circular hole.

4. A barrier structure according to claim 2, wherein The lower end of the pressing rod (17) is rotatably connected with the rotating shaft (18), and the rotating shaft (18) is rotatably connected with one end of the rotating strip (19).

5. A barrier structure according to claim 1, wherein The rotating structure (8) includes a central shaft (24), a rotating rod (25) and a fixed rod (26), one end of the fixed rod (26) is fixedly connected with the guardrail side (32), the other end of the fixed rod (26) is fixedly connected with the rotating rod (25), the rotating rod (25) is slidably connected on the central shaft (24), and two metal pipes are fixedly connected on the central shaft (24), and the other ends of the two metal pipes are fixedly connected with the bed body (7).

6. A barrier structure according to claim 1, wherein The buckle structure (11) comprises a protruding fixing part (28) and a concave fixing part (29), the protruding fixing part (28) is arranged on the side wall of the U-shaped guardrail (1), the concave fixing part (29) is arranged on the end wall surface of the guardrail (10), and the protruding fixing part (28) and the concave fixing part (29) are matched to form clamping fixation.

7. A barrier structure according to claim 6, characterised in that: The protruding fixing part (28) comprises a first connecting plate and a protruding part, the first connecting plate is fixedly connected to the side wall of the U-shaped guardrail (1), the protruding part is a columnar body, and the protruding part is fixedly arranged together with the first connecting plate; the concave fixing part (29) comprises a second connecting plate, a rotating shaft (31) and a concave buckle (30), the second connecting plate is fixedly connected to the end surface of the guardrail (10), each concave buckle (30) is composed of two square plates and two semicircular rings, the two semicircular rings are rotationally connected through the rotating shaft (31), the square plate is fixedly connected to the outer side wall of each semicircular ring, and two springs are fixedly installed on the concave fixing part (29), and the other ends of the two springs are fixedly connected to the square plates on the corresponding sides.

8. A crib comprising a crib body, characterized in that, The baby crib body is provided with the guardrail structure in any one of claims 1-7, and the baby crib body comprises a lifting structure (6), the lifting structure (6) is arranged below the bed body (7), a supporting cylinder (35) is fixedly arranged on the bottom wall surface of the bed body (7), the lifting structure (6) comprises lifting legs (4), lifting rods (5), threaded columns (15), connecting rods (16), first bevel gears (14) and supporting rods (13), the number of the lifting legs (4) and the lifting rods (5) is four, the four lifting legs (4) are fixedly installed on the bottom wall surfaces at the four end portions of the U-shaped guardrail side (3), the four lifting rods (5) are slidingly sleeved with the corresponding lifting legs (4), the bottom portions of the two lifting rods (5) on the left and right sides are fixedly connected with vertical plates, one supporting rod (13) is fixedly connected to each vertical plate, the upper ends of the two supporting rods (13) are fixedly connected with a horizontal plate, and the supporting cylinder (35) is fixedly connected to the middle portion of the horizontal plate. The top portion of the horizontal plate is rotationally provided with two first bevel gears (14), the two first bevel gears (14) are in a hollow state, the bearings of the two first bevel gears (14) are rotationally connected with the horizontal plate, the threaded columns (15) are threadedly connected into the hollow cavities of the two first bevel gears (14), and the threaded columns (15) movably penetrate through the two ends of the horizontal plate. The top ends of the two threaded columns (15) are fixedly connected with connecting rods (16), and the connecting rods (16) are located at the middle portions of the two lifting legs (4).

9. A cot according to claim 8, wherein: The supporting rods (13) are hollow, and the other ends of the threaded columns (15) penetrate into the interiors of the supporting rods (13).

10. A cot according to claim 9, wherein: The lifting structure (6) further comprises rotating shaft structures, two groups of rotating shaft structures, each of which is connected with a first bevel gear (14), the rotating shaft structure comprising a second bevel gear (12), a handle (27) and a support plate, the support plate being fixedly connected with the cross plate, the second bevel gear (12) being engaged with the first bevel gear (14), the second bevel gear (12) being rotatably connected with the support plate, and the handle (27) being rotatably connected with the support plate and fixedly connected with the second bevel gear (12).

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