Base assembly of a playard and playard

Abstract

The application discloses a base assembly of a playard and the playard. The base assembly comprises a base, a plurality of bottom tubes and a locking device. The plurality of bottom tubes are arranged around the base. One end of each bottom tube is rotatably connected to the base. Each bottom tube is rotatable between an unfolded state and a folded state. The locking device is arranged on the base. The locking device cooperates with at least one bottom tube to lock the bottom tube in the unfolded state. The locking device is released when being lifted upward. Each bottom tube is upwardly inclined in a direction away from the base. The included angle between each bottom tube and a horizontal plane is between 1 and 10 degrees. Thus, the bottom surface of the playard can be relatively flat during daily use. When the playard bears a biasing force or the ground on which the playard is placed is uneven, the inclination of the bottom tube allows the base to synchronously rise. The pre-set sinking amount can absorb the rising of the base and the bottom tube, so that the middle area of the playard is prevented from being raised, and the flatness of the bottom surface is ensured.

Description

Technical Field

[0001] This application relates to the field of children's bed technology, and more particularly to a base assembly for a play bed and the play bed itself. Background Technology

[0002] In related technologies, playbeds are typically designed with a foldable structure for easy transport and carrying. Folding is generally achieved through the base assembly, which is operated by simply lifting it. The foldable base assembly needs to frequently switch between folded and unfolded states. In the unfolded state, the base assembly also needs to support the bottom of the playbed. It's difficult to simultaneously balance the foldable nature of the base assembly with its support stability in the unfolded state. This results in the base assembly failing to ensure the flatness of the playbed's bottom in the unfolded state, leading to tilting and reducing the user experience. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a base assembly for a play bed, which ensures that the bottom surface of the play bed is flat when unfolded, thus improving the user experience.

[0004] This application further proposes a play bed employing the aforementioned base assembly.

[0005] A base assembly for a play bed according to a first aspect of this application includes: a base, a plurality of bottom tubes, and a locking device. The plurality of bottom tubes are arranged around the base, one end of each bottom tube is rotatably connected to the base, and each bottom tube rotates between an unfolded state and a folded state. The locking device is disposed on the base and cooperates with at least one bottom tube to lock the bottom tube in the unfolded state. The locking device releases the bottom tube when it is lifted upward. Each bottom tube is inclined upward in a direction away from the base, and the angle between each bottom tube and the horizontal plane is between 1 and 10 degrees.

[0006] According to an embodiment of this application, the base assembly of a playbed includes a locking device that locks at least one base tube in the unfolded state. In the unfolded state, the base tube has an angle of 1 to 10 degrees with the horizontal plane in the direction away from the base. The angle of inclination of the base tube is small, and it has a downward sag towards the center area. In normal use, the bottom surface of the playbed can be relatively flat. However, when the playbed is subjected to offset forces or the ground on which the playbed is placed is uneven, the base and base tubes can rise synchronously. A pre-set downward sag absorbs the rise of the base and base tubes, preventing the center area of ​​the playbed from bulging and ensuring the flatness of the bottom surface, thereby improving the user experience of the playbed.

[0007] According to some embodiments of this application, the locking device includes: a lock box and a lock cylinder. A receiving groove is provided on the base, the upper part of which is open. The lock box is disposed on the base and located within the receiving groove. The lock cylinder is connected to the lock box and has a core end and a core end. The core end is slidable relative to the lock box between an upper stop position and a lower stop position. When the core end slides, the core end rotates around the core end. When the bottom tube is in the unfolded state and the core end of the lock cylinder is at the lower stop position, at least one end of the bottom tube extends into the lock box, so that the lock box abuts against the upper side of the end of the bottom tube, and the core end abuts against the end of the bottom tube. When the core end is at the upper stop position, the core end pushes the end of the bottom tube out of the lock box, allowing the bottom tube to rotate freely. This allows the locking device to effectively lock at least one bottom tube, thereby improving the stability of the play bed when multiple bottom tubes are in the unfolded state.

[0008] In some embodiments, the base tube includes a rod body, a telescopic head, and an elastic element. The telescopic head is telescopically disposed within the rod body, and the elastic element connects the rod body and the telescopic head to drive the telescopic head to extend from one end of the rod body. In the extended state, a portion of the telescopic head extends into the lock housing and abuts against the lock cylinder. This allows the base tube to automatically switch to a locking engagement with the locking device in the extended state, improving ease of use.

[0009] Furthermore, the end face of the telescopic head is an arc-shaped surface, and the lock cylinder abuts against the arc-shaped surface; the upper side of the telescopic head also includes an upper plane, which is connected to the arc-shaped surface, and the lock box abuts against the upper plane. Thus, through the contact between the lock box and the telescopic head, and the contact between the two ends of the lock cylinder and the ends of the telescopic head, the stability of the fit between the base tube and the base in the unfolded state is improved, enhancing the support effect.

[0010] In some embodiments, the lock cylinder is provided with a lever at both ends of the cylinder. The lever includes an upper surface and a lower surface, and the distance between the upper surface and the lower surface gradually decreases in the direction away from one end of the cylinder. When the bottom tube is in the unfolded state and one end of the lock cylinder is in the lower stop position, the lower surface of the lever abuts against the end of the bottom tube, which can improve the smoothness of the bottom tube switching between the folded state and the unfolded state and avoid interference between the lock box and the bottom tube, which would prevent the bottom tube from switching to the folded state.

[0011] Furthermore, the upper and lower surfaces of the lever are connected by an arc transition in the direction away from the core. This avoids the lever end being too sharp, reduces frictional wear between the lever and the telescopic head, extends the service life of the base assembly, and prevents the telescopic head from getting stuck when it is inserted into or pushed out of the lock box, thus improving the convenience of switching between the unfolded and folded states of the base tube.

[0012] In some embodiments, the lock box has lock holes on opposite sides, and the bottom tubes on both sides extend into the lock box through the lock holes. There are two lock cylinders, with one end of each cylinder coaxially aligned and the other two ends abutting against the ends of the bottom tubes on both sides. This allows for unlocking of both bottom tubes with a single pull, improving unlocking convenience and making the space occupied by the locking device more rational. It also simplifies and facilitates the arrangement of the locking device within the base's accommodating space, thus improving placement convenience.

[0013] According to some embodiments of this application, the lock box is provided with a through hole, and the base assembly includes a lifting part. One end of the lifting part is connected to one end of the core of the lock cylinder, and the other end of the lifting part extends out from the through hole. In this way, the through hole provides clearance for the lifting part, which extends into the play area of ​​the play bed. When the user needs to store or move the play bed, this can be achieved by pulling the lifting part, improving the ease of transporting the play bed, the ease of unlocking the locking device, and further enhancing the user experience.

[0014] Furthermore, the lifting part is an elastic strap. In this way, on the one hand, the elastic deformation of the elastic strap can improve cushioning and reduce the lifting force, thereby improving the user experience; on the other hand, after the lifting action is completed, the lifting part can automatically return to its original position, preventing the length of the lifting part protruding outside the play bed from being too long when storing, thus improving storage convenience.

[0015] The play bed according to the second aspect of this application includes the base assembly described in the above embodiments. By making the bottom tube have an angle of 1 to 10 degrees with the horizontal plane in the direction away from the base, the flatness of the bottom surface can be improved, thereby improving the user experience of the play bed.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a perspective view of a play bed according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of a play bed at one angle according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the play bed according to an embodiment of this application from another angle;

[0021] Figure 4 This is a partially enlarged schematic diagram of the base assembly according to an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of a locking device for a base assembly according to an embodiment of this application;

[0023] Figure 6 This is another schematic diagram of a locking device for a base assembly according to an embodiment of this application.

[0024] Figure label:

[0025] 1000 playbeds

[0026] Base assembly 100, side tube 200, armrest tube 300, support legs 400.

[0027] Base 10, receiving slot 11,

[0028] 20 base tube, 21 pole body, 22 telescopic head.

[0029] Locking device 30, lock box 31, lock cylinder 32, cylinder end 1 321, cylinder end 2 322, lever 323.

[0030] The angle α between the bottom pipe and the horizontal plane. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] The following is for reference. Figures 1-5 The base assembly 100 and the play bed 1000 according to embodiments of the present invention are described.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, the base assembly 100 of the play bed 1000 according to the first aspect embodiment of this application includes: a base 10, a plurality of bottom tubes 20 and a locking device 30.

[0036] The base assembly 100 has a folded state and an unfolded state. In the folded state, multiple base tubes 20 are folded under the base 10 to reduce the space occupied by the base assembly 100 and facilitate the carrying and transportation of the base assembly 100 and the play bed 1000. In the unfolded state, multiple base tubes 20 are unfolded around the base 10 to form a support part of the bottom surface of the play bed 1000, which is used to support the bottom surface of the play bed 1000 above the ground.

[0037] Reference Figure 2The projection of the base 10 toward the horizontal plane is circular or rectangular. Multiple base tubes 20 are arranged around the base 10 (e.g., 4 or 6). One end of each base tube 20 is rotatably connected to the base 10, and each base tube 20 rotates between an unfolded state and a folded state. In the unfolded state, the other ends of the multiple base tubes 20 are positioned horizontally away from the base 10 and connected to the support legs 400 or side tubes 200 of the play bed 1000 to form a frame for supporting the bottom of the play bed 1000. In the folded state, the multiple base tubes 20 are located vertically below or to the side of the base 10 to reduce the space occupied by the base assembly 100 in the horizontal direction in the folded state.

[0038] like Figure 3 As shown, the locking device 30 is provided on the base 10. The locking device 30 is used to lock at least one bottom tube 20 in the unfolded state to ensure that the base assembly 100 can be stably maintained in the unfolded state. That is, the locking device 30 cooperates with at least one bottom tube 20 (e.g., push-fit, snap-fit, plug-fit, etc.) to lock the bottom tube 20 in the unfolded state. Then, when multiple bottom tubes 20 are in the unfolded state, the locking device 30 is configured to release the bottom tubes 20 when it is lifted upwards, so that by lifting the locking device 30, multiple bottom tubes 20 can be switched from the unfolded state to the folded state.

[0039] It should be noted that each bottom tube 20 is rotatably engaged with the base 10 at one end. When the play bed 1000 is unfolded and in the unfolded state, based on the connection relationship between the bed sheet covering the play bed 1000, the side tubes 200 of the play bed 1000, the armrest tubes 300 and the base assembly 100, when at least one bottom tube 20 is locked in the unfolded state, the base assembly 100 can be maintained in the unfolded state. Moreover, the locking device 30 of this application can lock one or more bottom tubes 20 in the unfolded state, without specific limitation.

[0040] like Figure 2 As shown, in the unfolded state, each bottom tube 20 is inclined upward in a direction away from the base 10, and the angle α between each bottom tube 20 and the horizontal plane is between 1 and 10 degrees.

[0041] Specifically, the play bed 1000's cover covers the base assembly 100, side tubes 200, and armrest tubes 300 to define the play space of the play bed 1000. The support legs 400, multiple bottom tubes 20, and base 10 define a frame structure for supporting the bottom of the play space. The bottom tubes 20 have a certain angle relative to the horizontal direction in the direction away from the base 10, that is, the bottom tubes 20 have a certain amount of downward sinking from all sides towards the base 10, and the angle α between the bottom tubes 20 and the horizontal plane is between 1 and 10 degrees, so that the amount of sinking is reasonable.

[0042] Therefore, under normal use, the bottom surface of the play bed 1000 can be relatively flat. However, when the ground on which the play bed 1000 is placed is uneven, or when there is an offset force in the play space, the bottom tube 20 and the base 10 can move upward synchronously. The rising of the base 10 and the bottom tube 20 absorbs the sinking amount, so that the bottom surface of the play space always remains flat, thereby improving the user experience of the play bed 1000.

[0043] According to an embodiment of this application, the base assembly 100 of the play bed 1000 locks at least one bottom tube 20 in the unfolded state using a locking device 30. In the unfolded state, the bottom tube 20 has an angle α of 1 to 10 degrees with the horizontal plane in the direction away from the base 10, specifically 3 degrees. The tilt angle of the bottom tube 20 is small and it has a sinking amount towards the center area. In normal use, the bottom surface of the play bed 1000 can be relatively flat and slightly tilted towards the center. When the play bed 1000 is subjected to an offset force or the ground on which the play bed 1000 is placed has low flatness, the base 10 and the bottom tube 20 can rise synchronously. The rising amount of the base 10 and the bottom tube 20 is absorbed by the pre-set sinking amount, which prevents the center area of ​​the play bed 1000 from bulging, ensures the flatness of the bottom surface, and improves the user experience of the play bed 1000.

[0044] It should be noted that when the base tube 20 is in the unfolded state, the angle between the base tube 20 and the horizontal plane in the direction away from the base 10 can be 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, etc., all of which can achieve the above-mentioned technical effects, which will not be elaborated here. Offset force refers to a local area of ​​the bottom surface of the play bed 1000, such as: unilateral force, upper left corner, lower right corner, etc.

[0045] like Figure 4 , Figure 5 and Figure 6 As shown, the locking device 30 includes: a lock box 31 and a lock cylinder 32. The lock box 31 is mounted on the base 10. The lock cylinder 32 is connected to the lock box 31. The lock cylinder 32 has a core end 321 and a core end 322. The core end 321 can slide relative to the lock box 31 between an upper stop position and a lower stop position. When the core end 321 slides, the core end 322 rotates around the core end 321.

[0046] Specifically, the lock box 31 is mounted on the base 10, and the lock cylinder 32 is located inside the lock box 31. A guide groove can be provided on the lock cylinder 32 to limit the travel of the first end 321 of the cylinder. The upper and lower ends of the guide groove correspond to the upper and lower stops of the first end 321 of the cylinder, respectively. Alternatively, the area of ​​the lock box 31 opposite to the first end 321 of the cylinder can be hollowed out, and the first end 321 of the cylinder can slide within the hollowed-out area (i.e., reciprocate between the upper and lower stops). The second end 322 of the cylinder is set opposite to the first end 321 of the cylinder. During the reciprocating motion of the first end 321 of the cylinder between the upper and lower stops, the second end 322 of the cylinder can swing relative to the first end 321 of the cylinder.

[0047] Reference Figure 5 and Figure 6 As shown, when the bottom tube 20 is in the unfolded state and the core end 321 of the lock cylinder 32 is in the lower stop position, at least one end of the bottom tube 20 (i.e., the bottom tube 20 that can be locked by the locking device 30) extends into the lock box 31, so that the lock box 31 abuts against the upper side of the end of the bottom tube 20, and the core end 322 abuts against the end of the bottom tube 20; when the core end 321 is in the upper stop position, the core end 322 pushes the end of the bottom tube 20 out of the lock box 31, so that the bottom tube 20 can rotate freely.

[0048] In other words, during the reciprocating motion of the first end 321, the second end 322 swings relative to the first end 321 under the push of the bottom tube 20. During the swinging of the second end 322, the angle between the lock cylinder 32 and the horizontal plane gradually changes. During the movement from the lower stop point to the upper stop point, the angle between the lock cylinder 32 and the horizontal plane gradually decreases. The second end 322 pushes the end of the bottom tube 20 that extends into the lock box 31 away from the first end 321 and gradually pushes the end of the bottom tube 20 out of the lock box 31, thus unlocking the bottom tube 20. During the movement from the upper stop point to the lower stop point, the angle between the lock cylinder 32 and the horizontal plane gradually increases. The end of the bottom tube 20 gradually extends into the lock box 31, and the distance between the end of the bottom tube 20 and the first end 321 gradually decreases, so that the end of the bottom tube 20 pushes against the second end 322, and the outer circumference of the bottom tube 20 abuts against the lock box 31, thus locking the bottom tube 20.

[0049] In this way, the locking device 30 can effectively lock at least one bottom tube 20 to improve the stability of the play bed 1000 when the multiple bottom tubes 20 are in the unfolded state.

[0050] Of course, the structure of the locking device 30 of this application is not limited to this. In some other embodiments, the bottom tube 20 is pivotally connected to the base 10, the end of the bottom tube 20 extends into the interior of the base 10 and is hinged to the two ends 322 of the lock cylinder 32, the one end 321 of the cylinder and the lock box 31 are slidably disposed on the base 10 to reciprocate between the upper stop point and the lower stop point, and the lock box 31 can be selectively locked to the base 10.

[0051] Furthermore, during the movement from the lower stop point to the upper stop point, the first end 321 of the core is pulled, and the first end 321 of the core and the lock box 31 move upward away from the base 10 simultaneously. The pivot connection point between the bottom tube 20 and the base 10 and the hinge point of the second end 322 of the bottom tube 20 form a compound hinge. The second end 322 of the core swings downward relative to the first end 321 of the core, and the end of the bottom tube 20 rotates upward to switch the bottom tube 20 to the folded state, thereby unlocking the bottom tube 20. During the movement from the upper stop point to the lower stop point, the first end 321 of the core and the lock box 31 move towards the base 10 simultaneously. The lock box 31 cooperates with the base 10 to lock the bottom tube 20. The end of the bottom tube 20 that is hinged to the second end 322 of the core flips downward to switch the bottom tube 20 to the unfolded state.

[0052] exist Figure 5 and Figure 6 In the embodiment shown, the bottom tube 20 includes: a rod body 21, a telescopic head 22, and an elastic element (not shown in the figure). The telescopic head 22 is telescopically disposed inside the rod body 21. The elastic element is connected between the rod body 21 and the telescopic head 22 to drive the telescopic head 22 to extend from one end of the rod body 21. In the unfolded state, a portion of the telescopic head 22 extends into the lock box 31 and abuts against the lock cylinder 32.

[0053] Specifically, the telescopic head 22 is telescopically mounted on one end of the rod 21 under the action of the elastic element. Corresponding to the unlocking and locking processes of the locking device 30, the second end 322 of the core and the telescopic head 22 are pushed together. During the swinging process of the first end 321 of the core, the second end 322 of the core pushes the telescopic head 22 back to one end of the rod 21; or the second end 322 of the core moves away from the rod 21. At this time, the telescopic head 22 extends into the lock box 31 and pushes against the second end 322 of the core. Through the setting of the elastic element and the telescopic head 22, the bottom tube 20 can automatically switch to the locking engagement with the locking device 30 in the unfolded state, so as to improve the convenience of use.

[0054] The elastic element can be constructed as a linear spring.

[0055] Reference Figure 5 and Figure 6 As shown, the end face of the telescopic head 22 is an arc surface, and the lock cylinder 32 abuts against the arc surface; the upper side of the telescopic head 22 also includes an upper plane, which is connected to the arc surface, and the lock box 31 abuts against the upper plane.

[0056] In other words, the telescopic head 22 includes an upper side surface and an end arc surface connected to the upper side surface facing the lock cylinder 32. At least part of the upper side surface is constructed as a plane (i.e., an upper plane). The end arc surface pushes against the second end 322 of the lock cylinder, and the end arc surface can fit against the second end 322 of the lock cylinder to improve the stability of the push-fit between the second end 322 of the lock cylinder and the telescopic head 22. As the end arc surface extends into the lock box 31, the upper plane gradually exposes the rod 21. The upper plane and the upper side surface of the telescopic head 22 define a pushing surface in the direction of movement of the telescopic head 22. The lock box 31 abuts against the pushing surface. Through the abutment between the lock box 31 and the telescopic head 22, and the abutment between the second end 322 of the lock cylinder and the end of the telescopic head 22, the stability of the fit between the bottom tube 20 and the base 10 in the unfolded state is improved, and the support effect is improved.

[0057] like Figure 5 As shown, in some embodiments, the lock cylinder 32 is provided with a lever 323 at the two ends 322 of the cylinder. The lever 323 includes an upper surface and a lower surface, and the distance between the upper surface and the lower surface gradually decreases in the direction away from the first end 321 of the cylinder. When the bottom tube 20 is in the unfolded state and the first end 321 of the lock cylinder 32 is in the lower stop position, the lower surface of the lever abuts against the end of the bottom tube 20.

[0058] Specifically, the paddle 323 is disposed on the periphery of the second core end 322. One end of the paddle 323 is connected to the second core end 322, and the other end extends away from the second core end 322. The width of the paddle 323 gradually decreases in the direction away from the second core end 322.

[0059] Based on the setting of the paddle 323, when the bottom tube 20 is in the unfolded state, the lower surface of the paddle 323 abuts against the end arc surface of the telescopic head 22. When the locking device 30 is in the unlocked state, the paddle 323 can make the overall length of the lock cylinder 32 longer. The area where the upper surface and the lower surface of the paddle are connected can abut against the end arc surface of the telescopic head 22 to ensure that the bottom tube 20 moves outside the lock box 31, improve the smoothness of the bottom tube 20 switching between the folded and unfolded states, and avoid interference between the lock box 31 and the bottom tube 20, which would prevent the bottom tube 20 from switching to the folded state.

[0060] like Figure 5 As shown, the upper and lower surfaces of the lever are connected by an arc transition in the direction away from the core end 321. That is, both the upper and lower surfaces of the lever 323 are connected to the core end 322, and the other end of the upper surface of the lever is connected to the other end of the lower surface of the lever, also connected by an arc transition. This avoids the end of the lever 323 being too sharp, reduces frictional wear between the lever 323 and the telescopic head 22, extends the service life of the base assembly 100, and also prevents the telescopic head 22 from getting stuck during insertion into or removal from the lock box 31, improving the convenience of switching the base tube 20 between the unfolded and folded states.

[0061] Of course, the end of the upper surface of the paddle that is connected to the core end 322 and the end of the lower surface of the paddle that is connected to the core end 322 can also be constructed as an arc transition connection.

[0062] like Figure 4 As shown, lock holes are provided on opposite sides of the lock box 31, and the ends of the bottom tubes 20 on both sides extend into the lock box 31 through the lock holes; there are two lock cylinders 32, with one end 321 of the two lock cylinders 32 coaxially arranged, and the other ends 322 of the two lock cylinders 32 respectively abutting against the ends of the bottom tubes 20 on both sides.

[0063] Specifically, two bottom tubes 20 are locked by the locking device 30. The two bottom tubes 20 are arranged opposite each other. The two ends 322 of the two locking cylinders 32 respectively cooperate with the telescopic heads 22 of the two bottom tubes 20, and the two ends 321 of the two locking cylinders 32 are pivotally connected by a pivot. In this way, locking the two bottom tubes 20 by the locking device 30 can improve the stability of multiple bottom tubes 20 in the unfolded state. The two ends 321 of the two cylinders are coaxially arranged, and the two bottom tubes 20 can be unlocked with a single pull, which can improve the convenience of unlocking. It also makes the space occupied by the locking device 30 more reasonable and makes the arrangement of the locking device 30 within the accommodating space of the base 10 simpler and more convenient, thus improving the convenience of arrangement.

[0064] like Figure 3 and Figure 4 As shown, according to some embodiments of this application, the lock box 31 is provided with a through hole, and the base assembly 100 includes a lifting part (not shown in the figure). One end of the lifting part is connected to one end 321 of the core of the lock cylinder 32, and the other end of the lifting part extends out from the through hole. In this way, the through hole provides clearance for the lifting part, and the lifting part extends into the play space of the play bed 1000. When the user needs to store the play bed 1000 or move the play bed 1000, this can be achieved by pulling the lifting part, which can improve the convenience of transporting the play bed 1000 and the convenience of unlocking the locking device 30, and further improve the user experience.

[0065] Furthermore, the lifting section is an elastic band.

[0066] Specifically, the lifting part may include a connecting area and a lifting area. One end of the connecting area is connected to one end 321 of the core, and the other end is connected to the lifting area. The lifting area may be constructed as an elastic band, and the lifting area may be constructed as an annular braided band and connected to the other end of the connecting area.

[0067] In this way, on the one hand, the elastic deformation of the elastic strap can improve cushioning and reduce the lifting force, thereby improving the user experience; on the other hand, after the lifting action is completed, the lifting part can automatically return to its original position, avoiding the excessive length of the lifting part protruding outside the play bed 1000 when storing, thus improving storage convenience.

[0068] like Figure 4 , Figure 5 and Figure 6 As shown, according to some embodiments of this application, the base 10 is provided with a receiving groove 11, the upper part of the receiving groove 11 is open, the locking device 30 is provided in the receiving groove 11, and the bottom tube 20 extends into the receiving groove 11 through the side wall of the base 10.

[0069] The base 10 has a receiving groove 11 with multiple reinforcing ribs defining multiple sub-spaces. The sub-space in the middle area accommodates the lock cylinder 32 and the lock box 31, while the surrounding sub-spaces accommodate the bottom tube 20. A pivot shaft is provided in the sub-space accommodating the bottom tube 20, allowing the bottom tube 20 to pivotally engage with the base 10. This design improves the stability of the fit between the base 10, the locking device 30, and the bottom tube 20, resulting in greater stability of the base assembly 100 during both storage and deployment.

[0070] The playbed 1000 according to a second aspect of this application includes the base assembly 100 in the above embodiments.

[0071] The play bed 1000 according to an embodiment of this application includes: a base assembly 100, support legs 400, armrest tubes 300, side tubes 200, a bed sheet, etc. One end of the bottom tube 20 of the base assembly 100 is connected to the base 10, and the other end is connected to the support legs 400. One end of the side tube 200 is connected to the support legs 400, and the other end is connected to the armrest tubes 300. The two ends of the armrest tubes 300 are respectively connected to the two side tubes 200 on the same side, so as to define a play bed 1000 that is generally rectangular in the unfolded state.

[0072] A bed sheet is placed on the base assembly 100, armrest tube 300 and side tube 200 to define the play space. The base assembly 100 is supported on the bottom surface of the play space. By making the bottom tube 20 have an angle of 1 to 10 degrees with the horizontal plane in the direction away from the base 10, the flatness of the bottom surface can be improved, thereby improving the user experience of the play bed 1000.

[0073] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A base assembly for a play bed, characterized in that, include: A base (10) is provided with a receiving groove (11) and the upper part of the receiving groove (11) is open; Multiple bottom tubes (20) are arranged around the base (10), one end of each bottom tube (20) is rotatably connected to the base (10), and each bottom tube (20) rotates between an unfolded state and a folded state; A locking device (30) is provided on the base (10) and located in the receiving groove (11). The locking device (30) cooperates with at least one bottom tube (20) to lock the bottom tube (20) in the unfolded state. The bottom tube (20) is released when the locking device (30) is lifted upward. The locking device (30) includes: a lock box (31), which is disposed on the base (10); A lock cylinder (32) is connected to the lock housing (31). The lock cylinder (32) has a core end (321) and a core end (322). The core end (321) is slidable relative to the lock housing (31) between an upper stop position and a lower stop position. When the core end (321) slides, the core end (322) rotates around the core end (321). The bottom tube (20) is in the unfolded state, and the core end (32) of the lock cylinder (32) is... When end (321) is in the lower stop position, at least one end of the bottom tube (20) extends into the lock box (31) so that the lock box (31) abuts against the upper side of the end of the bottom tube (20), and the two ends (322) of the core abut against the end of the bottom tube (20); when one end (321) of the core is in the upper stop position, the two ends (322) of the core push the end of the bottom tube (20) out of the lock box (31) so that the bottom tube (20) can rotate freely; Each of the bottom tubes (20) is inclined upward in a direction away from the base (10), and the angle (α) between each bottom tube (20) and the horizontal plane is between 1 and 10 degrees.

2. The base assembly of the play bed according to claim 1, characterized in that, The bottom tube (20) includes: a rod body (21), a telescopic head (22) and an elastic element. The telescopic head (22) is telescopically disposed inside the rod body (21). The elastic element is connected between the rod body (21) and the telescopic head (22) to drive the telescopic head (22) to extend from one end of the rod body (21). In the unfolded state, a part of the telescopic head (22) extends into the lock box (31) and abuts against the lock cylinder (32).

3. The base assembly of the play bed according to claim 2, characterized in that, The end face of the telescopic head (22) is an arc surface, and the lock cylinder (32) abuts against the arc surface; the upper side of the telescopic head (22) also includes an upper plane, which is connected to the arc surface, and the lock box (31) abuts against the upper plane.

4. The base assembly of the play bed according to claim 1, characterized in that, The lock cylinder (32) has a paddle (323) at the two ends (322) of the cylinder. The paddle (323) includes an upper surface and a lower surface, and the distance between the upper surface and the lower surface gradually decreases in the direction away from the one end (321) of the cylinder. When the bottom tube (20) is in the unfolded state and the core end (321) of the lock core (32) is in the lower stop position, the lower surface of the lever abuts against the end of the bottom tube (20).

5. The base assembly of the play bed according to claim 4, characterized in that, The upper and lower surfaces of the paddle are connected by an arc transition in the direction away from the core end (321).

6. The base assembly of the play bed according to claim 1, characterized in that, The lock box (31) has lock holes on its opposite sides, and the ends of the bottom tubes (20) on both sides extend into the lock box (31) through the lock holes. There are two lock cylinders (32), with one end (321) of the two lock cylinders (32) being coaxially arranged, and the other ends (322) of the two lock cylinders (32) respectively abutting against the ends of the bottom tubes (20) on both sides.

7. The base assembly of the play bed according to any one of claims 1-6, characterized in that, The lock box (31) is provided with a through hole, and the base assembly (100) includes a lifting part. One end of the lifting part is connected to one end (321) of the core of the lock cylinder (32), and the other end of the lifting part extends out from the through hole.

8. The base assembly of the play bed according to claim 7, characterized in that, The lifting part is an elastic band.

9. A play bed, characterized in that, Includes the base assembly (100) according to any one of claims 1-8.

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