Anti-falling sliding mechanism, bed frame and baby crib

Abstract

The utility model discloses an anti-falling sliding mechanism, a bed frame and a baby crib, the anti-falling sliding mechanism is applied to the bed frame, and the bed frame comprises stand columns and armrests; the anti-falling sliding mechanism comprises a fixed seat, a sliding seat and an anti-falling structure. The fixing base is installed on the top of the stand column. The sliding seat is mounted at the end part of the handrail, is arranged on the fixed seat and can slide along a first direction relative to the fixed seat; the anti-falling structure comprises a matching part and an abutting part; the matching part is arranged on the fixed seat; the abutting part is arranged on the sliding seat; the sliding seat abuts against the matching part in the second direction and the third direction through the abutting part, so that the sliding seat is limited to be separated from the fixed seat in the second direction in the process of sliding relative to the fixed seat in the first direction. And the second direction and the third direction are two arbitrary intersecting directions perpendicular to the plane where the first direction is located. The design can effectively prevent the sliding seat from being separated from the fixed seat in the second direction when the sliding seat slides in the first direction relative to the fixed seat, so that the connection stability between the handrail and the stand column is enhanced.

Description

Technical Field

[0001] This application relates to the technical field of baby products, and particularly to an anti-detachment sliding mechanism, a bed frame, and a baby crib. Background Art

[0002] A baby crib is used for infants and young children to lie and sleep or play. The armrest on one side of its bed frame can adjust the vertical height position, so as to facilitate the caregiver to pick up and place items or put in / take out infants and young children.

[0003] However, in the baby cribs in the related art, due to the limitations of the structure of the bed frame itself, there is a risk that the armrest on one side of the bed frame detaches from the column during the process of sliding up and down relative to the column. Therefore, how to effectively enhance the connection stability between the armrest and the column has become an urgent problem to be solved. Summary of the Utility Model

[0004] The embodiments of this application provide an anti-detachment sliding mechanism, a bed frame, and a baby crib, which can solve the problem of poor connection stability between the armrest and the column of the bed frame in the baby cribs in the related art.

[0005] In a first aspect, the embodiments of this application provide an anti-detachment sliding mechanism; this anti-detachment sliding mechanism is applied to a bed frame, the bed frame includes a column and an armrest, the anti-detachment sliding mechanism includes a fixed seat, a sliding seat, and an anti-detachment structure. The fixed seat is used to be installed at the top of the column, the sliding seat is used to be installed at the end of the armrest. The sliding seat is arranged on the fixed seat and can slide relative to the fixed seat along a first direction. The anti-detachment structure includes a matching part and an abutting part. The matching part is arranged on the fixed seat, the abutting part is arranged on the sliding seat. The sliding seat abuts against the matching part in a second direction and a third direction, so as to limit the sliding seat from detaching from the fixed seat along the second direction during the process of sliding along the first direction relative to the fixed seat, where the second direction and the third direction are two arbitrarily intersecting directions within a plane perpendicular to the first direction.

[0006] Based on the anti-slip sliding mechanism of the embodiments of the present application, by designing the abutting portion and the cooperating portion, the abutting portion and the cooperating portion are abutted in the second direction, which can limit the relative movement of the sliding seat and the fixed seat in the second direction. In this way, it can limit the sliding seat from detaching from the fixed seat in the second direction during the sliding process along the first direction relative to the fixed seat, and can effectively avoid the armrest from detaching from the column, so as to effectively enhance the connection stability between the armrest and the column. By designing the abutting portion and the cooperating portion, the abutting portion and the cooperating portion are abutted in the third direction, which can limit the relative movement of the sliding seat and the fixed seat in the third direction, and enable the abutting action of the abutting portion and the cooperating portion in the third direction to cooperate with the abutting action of the abutting portion and the cooperating portion in the second direction. In this way, only after overcoming the abutting action of the abutting portion and the cooperating portion in the third direction and then overcoming the abutting action of the abutting portion and the cooperating portion in the second direction can the sliding seat detach from the fixed seat in the second direction; therefore, by designing the abutting portion and the cooperating portion to be abutted in the second direction and the third direction, it effectively limits the sliding seat from detaching from the fixed seat in the second direction during the sliding process along the first direction relative to the fixed seat, and can effectively avoid the armrest from detaching from the column, so as to further effectively enhance the connection stability between the armrest and the column.

[0007] In some of the embodiments, the cooperating portion includes a through groove provided in the fixed seat and extending along the first direction; the abutting portion includes a first abutting part, the first abutting part passes through the through groove and one end thereof is connected to the sliding seat, and the first abutting part abuts against the groove wall surface of the through groove in the third direction.

[0008] Based on the above embodiments, by embedding the first abutting part in the through groove, the first abutting part and the groove wall surface of the through groove are abutted against each other in the third direction, so that the relative movement of the sliding seat and the fixed seat in the third direction can be limited, so as to effectively enhance the connection stability and movement stability of the sliding seat relative to the fixed seat during the sliding process along the first direction.

[0009] In some of the embodiments, the fixed seat is sleeved on the top of the column; the cooperating portion further includes a rib extending along the first direction, the rib is located on at least one side of the through groove in the third direction and is connected to the inner wall surface of the fixed seat; the abutting portion further includes a connecting part and a second abutting part, the connecting part is located in the cavity of the fixed seat and is connected to the other end of the first abutting part, and the second abutting part is located on at least one side of the through groove in the third direction and is connected to the second abutting part; wherein, the second abutting part, the connecting part and the first abutting part enclose a groove, the rib is embedded in the groove, and the rib abuts against the groove wall surface of the groove in the second direction and the third direction.

[0010] Based on the above embodiment, by designing the connecting part and the second abutting part, the first abutting part, the connecting part and the second abutting part are jointly arranged to form a groove; on the one hand, the convex strip is embedded in the groove, so that the groove wall surface of the convex strip and the groove abut against each other in the second direction, thereby limiting the relative movement of the sliding seat and the fixed seat in the second direction, so as to effectively limit the sliding seat from separating from the fixed seat in the second direction during the movement along the first direction relative to the fixed seat; on the other hand, the convex strip is embedded in the groove, so that the groove wall surface of the convex strip and the groove abut against each other in the third direction, thereby limiting the relative movement of the sliding seat and the fixed seat in the third direction, and in combination with the abutment of the convex strip and the groove wall surface in the second direction, it can further effectively limit the sliding seat from separating from the fixed seat in the second direction during the sliding process along the first direction relative to the fixed seat.

[0011] In some embodiments, the through groove extends to penetrate the top of the fixing seat; the end of the protrusion close to the top of the fixing seat has a slope, and the distance between the slope and the inner wall of the fixing seat gradually increases from the end close to the top of the fixing seat to the end away from the top of the fixing seat.

[0012] Based on the above embodiment, when the armrest moves to the highest position along the first direction relative to the fixed seat through the sliding seat, the end of the convex strip close to the bottom of the fixed seat is thinned by designing a slope to avoid excessive pre-pressure between the convex strip (that is, to avoid excessive pressure caused by the strong contact between the convex strips) to open the upper end opening of the through groove and cause deformation of the fixed seat, thereby effectively reducing the possibility of the sliding seat escaping from the fixed seat.

[0013] In some of the embodiments, the outer wall surface of the fixing seat is provided with a receiving groove extending along the first direction, and the receiving groove is used to receive the enclosing member; the anti-slip sliding mechanism also includes an extrusion member, which is at least partially embedded in the receiving groove, and the extrusion member is configured to be extruded with the groove wall surface of the receiving groove, so that the groove wall surface of the through groove is tightly abutted against the first abutting portion in the third direction.

[0014] Based on the above embodiment, by designing an extrusion piece, the extrusion piece is embedded in the accommodating groove to support the accommodating groove, which can effectively prevent the fixed seat from being deformed under the abutment of the first abutting part, and the interference fit between the extrusion piece and the groove wall of the accommodating groove generates an extrusion force, and the extrusion force acts on the fixed seat to make the groove wall of the through groove press against the first abutting part in the third direction, so that the connection stability and movement stability of the sliding seat relative to the fixed seat in the process of sliding along the first direction can be further enhanced, thereby further effectively limiting the sliding seat from detaching from the fixed seat in the second direction during the process of sliding along the first direction relative to the fixed seat.

[0015] Second aspect, an embodiment of the present application provides a bed frame; the bed frame is applied to a crib, and the bed frame includes a column, an armrest, a locking and unlocking assembly, and the above anti - detachment sliding mechanism. The fixed seat is installed at the top of the column, the end of the armrest is connected to the sliding seat, the locking and unlocking assembly is installed on the sliding seat, and the locking and unlocking assembly has a locked state and an unlocked state; in the locked state, the locking and unlocking assembly is configured to lock the sliding seat to the fixed seat when the armrest is in the lowest position; in the unlocked state, the locking and unlocking assembly is configured to unlock the sliding seat from the fixed seat when the armrest is in the lowest position; the locking and unlocking assembly can be switched between the locked state and the unlocked state.

[0016] Based on the bed frame of the embodiment of the present application, with the above anti - detachment sliding mechanism, during the process of the armrest being switched from the highest position to the lowest position, or from the lowest position to the highest position, it can effectively limit the armrest connected to the sliding seat from detaching from the column in the second direction, so as to effectively enhance the connection stability between the armrest and the column. By designing the locking and unlocking assembly, when the armrest is in the lowest position, the locking and unlocking assembly can achieve relative fixation of the positions between the sliding seat and the fixed seat in the locked state, and the locking and unlocking assembly can achieve relative change of the positions between the sliding seat and the fixed seat in the unlocked state, so that the height of the armrest is adjustable, which is convenient for users to use.

[0017] In some of these embodiments, a first locking hole is provided at the bottom of the fixed seat, and the locking and unlocking assembly includes a locking member and a driving member; the locking member is arranged on the sliding seat, and the locking member is configured to engage with the first locking hole when the armrest is in the lowest position; the driving member is slidably arranged on the sliding seat and connected to the locking member, and the driving member is configured to drive the locking member to move away from the first locking hole by sliding relative to the sliding seat.

[0018] Based on the above embodiments, by designing the locking member, the locking member is configured to engage with the first locking hole when the armrest is in the lowest position. At this time, relative fixation of the positions between the sliding seat and the fixed seat can be achieved, so as to position the armrest on the column and be in the above - mentioned lowest position. By designing the driving member, the driving member is configured to drive the locking member to move away from the first locking hole by sliding relative to the sliding seat. At this time, relative change of the positions between the sliding seat and the fixed seat can be achieved, so as to adjust the height of the armrest.

[0019] In some of these embodiments, the locking member has a driving inclined surface; the driving member abuts against the driving inclined surface, and when the driving member slides relative to the sliding seat, the driving member pushes the driving inclined surface to make the locking member move away from the first locking hole.

[0020] Based on the above embodiments, when the height of the armrest needs to be adjusted, the user presses the driving member to make the driving member move relative to the sliding seat to push the driving inclined surface of the locking member, so that the locking member moves away from the column to disengage from the first locking hole. At this time, the locking and unlocking assembly is in the above - mentioned unlocked state, and the sliding seat can slide relative to the fixed seat in the first direction to adjust the height of the armrest.

[0021] In some of these embodiments, the lock release assembly further includes an elastic member, and two ends of the elastic member respectively abut against the sliding seat and the locking member. When the driving member slides relative to the sliding seat, the driving member pushes against the driving inclined surface so that the locking member presses the elastic member and moves to disengage from the first locking hole.

[0022] Based on the above embodiments, by designing the elastic member, when the driving member is not under the action of a pressing force, two ends of the elastic member respectively abut against the sliding seat and the locking member, causing the elastic member to have an initial elastic deformation. Under the action of the elastic force generated by this initial elastic deformation, the locking member can be tightly abutted against the first locking hole to enhance the connection stability between the locking member and the first locking hole, thereby enhancing the connection stability when the sliding seat is positioned on the fixed seat. By designing the elastic member, the elastic member is adapted to further generate an elastic deformation (greater than the above initial elastic deformation) under the action of the above pressing force, and the elastic force generated by this elastic deformation is adapted to cause the locking member to automatically reset after the pressing force acting on the driving member is withdrawn.

[0023] In some of these embodiments, the bed frame further includes an upper frame and a top corner fixing member. The end of the upper frame is connected to the top of the column through the top corner fixing member. The top corner fixing member is located above the fixed seat, and the top corner fixing member is provided with a second locking hole; the locking member is further configured to engage with the second locking hole when the armrest is in the highest position; the driving member is further configured to drive the locking member to move to disengage from the second locking hole by sliding relative to the sliding seat.

[0024] Based on the above embodiments, by designing the upper frame, the upper frame serves as the top support structure of the bed frame to enhance the overall structural strength of the bed frame. By designing the top corner fixing member, the top corner fixing member serves as a connecting member of the bed frame to realize the connection between the upper frame and the column. By designing the locking member, the locking member is further configured to engage with the second locking hole when the armrest is in the highest position. At this time, the relative position between the sliding seat and the top corner fixing member can be fixed to position the armrest on the column and in the above highest position. By designing the driving member, the driving member is further configured to drive the locking member to move to disengage from the second locking hole by sliding relative to the sliding seat. At this time, the relative position between the sliding seat and the top corner fixing member can be changed to adjust the height of the armrest.

[0025] In some of these embodiments, the bed frame further includes a bottom frame, a support and a pulley. The bottom frame is connected to the bottom of the column via the support. A convex platform is provided on the bottom wall surface of the support connected to one side of the bottom frame in the length direction of the bed frame, and a pulley is installed on the support provided with the convex platform.

[0026] Based on the above embodiments, by designing the chassis, the chassis serves as the bottom support structure of the bed frame to enhance the overall structural strength of the bed frame. By designing the support, the support provides effective support for the chassis and the columns, and when the bed frame does not need to be moved, the support forms effective contact with the ground so that the entire bed frame can be placed stably on the ground. By designing the pulleys, when the bed frame needs to be moved, the user only needs to lift the bed frame on the side without pulleys along its own length direction, so that the support is spaced from the ground and the pulleys are in contact with the ground. At this time, it is convenient for the user to move the bed frame with the help of the pulleys. By designing the boss on the bottom wall surface of the support, the boss makes the bottom wall surface of the support closer to the ground. Compared with the case where no boss is designed, at this time, the user needs to lift the bed frame on the side without pulleys along its own length direction higher to make the support spaced from the ground enough and the pulleys can slide along the ground. In this way, the design of the boss can effectively reduce the risk of the bed frame accidentally sliding due to the side of the bed frame without pulleys along its own length direction being accidentally lifted by a certain height.

[0027] In a third aspect, an embodiment of the present application provides a baby crib; the baby crib includes the above-mentioned bed frame.

[0028] Based on the baby crib of the embodiment of the present application, having the above-mentioned bed frame can effectively prevent the armrest from detaching from the column, so as to effectively enhance the connection stability between the armrest and the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of the armrest of the bed frame in an embodiment of the present application when it is in the lowest position;

[0031] Figure 2 It is a schematic structural diagram of the armrest of the bed frame in an embodiment of the present application when it is in the highest position;

[0032] Figure 3 It is Figure 2 an enlarged schematic structural diagram of part A in

[0033] Figure 4 It is a schematic structural diagram of the fixing seat in an embodiment of the present application;

[0034] Figure 5 It is a schematic structural diagram of the fixing seat in another perspective in an embodiment of the present application;

[0035] Figure 6 Schematic structural diagram of a sliding seat in an embodiment of the present application;

[0036] Figure 7 Schematic structural diagram of the sliding seat in another perspective in an embodiment of the present application;

[0037] Figure 8 Partial sectional structural diagram of an anti - detachment sliding mechanism in an embodiment of the present application;

[0038] Figure 9 Sectional structural diagram of the sliding seat in an embodiment of the present application;

[0039] Figure 10 is Figure 9 Sectional structural diagram in another perspective;

[0040] Figure 11 Schematic assembly structure diagram of a top - corner fixing part, a sliding seat and a column in an embodiment of the present application;

[0041] Figure 12 is Figure 11 Enlarged structural diagram at position B in;

[0042] Figure 13 Schematic structural diagram of a bed frame when one side in its own length direction is raised so that the support is spaced from the ground and the pulley contacts the ground in an embodiment of the present application;

[0043] Figure 14 Schematic structural diagram of a wheel seat in an embodiment of the present application.

[0044] Reference numerals: 1, bed frame; 10, anti - detachment sliding mechanism; 110, fixed seat; 111, receiving groove; 112, first locking hole; 120, sliding seat; 130, anti - detachment structure; 131, mating part; 131a, through - slot; 131b, rib; 131b1, inclined surface; 132, abutting part; 132a, first abutting portion; 132b, connecting portion; 132c, second abutting portion; 132d, groove; 140, pressing member; 20, column; 30, armrest; 40, locking and unlocking assembly; 41, locking member; 411, driving part; 411a, driving inclined surface; 412, locking portion; 42, driving member; 43, elastic member; 50, upper frame; 60, top - corner fixing part; 61, second locking hole; 70, bottom frame; 81, support; 82, pulley; 83, boss; OO’, first direction; PP’, second direction; QQ’, third direction. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of this application more clearly understood, the following further details this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and are not intended to limit this application.

[0046] Please refer to Figures 1-8 As shown, in a first aspect, this application proposes an anti - detachment sliding mechanism 10, which is applied to a bed frame 1 and can effectively prevent the armrest 30 from detaching from the column 20, so as to effectively enhance the connection stability between the armrest 30 and the column 20.

[0047] The anti - detachment sliding mechanism 10 is applied to the bed frame 1, and the bed frame 1 includes a column 20 and an armrest 30; the anti - detachment sliding mechanism 10 includes a fixed seat 110, a sliding seat 120 and an anti - detachment structure 130. The fixed seat 110 is used to be installed on the top of the column 20. The sliding seat 120 is used to be installed at the end of the armrest 30. The sliding seat 120 is disposed on the fixed seat 110 and can slide relative to the fixed seat 110 along a first direction OO'. The anti - detachment structure 130 includes a mating part 131 and an abutting part 132; the mating part 131 is disposed on the fixed seat 110; the abutting part 132 is disposed on the sliding seat 120; the sliding seat 120 abuts against the mating part 131 in a second direction PP' and a third direction QQ' to limit the sliding seat 120 from detaching from the fixed seat 110 along the second direction PP' during the process of sliding relative to the fixed seat 110 along the first direction OO'. Among them, the second direction PP' and the third direction QQ' are two arbitrarily intersecting directions within a plane perpendicular to the first direction OO'.

[0048] The following further Figures 1-8 introduces the specific structure of the anti - detachment sliding mechanism 10 in detail.

[0049] As Figures 1-2 shown, the anti - detachment sliding mechanism 10 is applied to the bed frame 1, and the bed frame 1 includes a column 20 and an armrest 30; the column 20 serves as the longitudinal support rod of the bed frame 1, and the specific structure of the column 20 is not limited here, and designers can make reasonable designs according to actual needs. The armrest 30 serves as the transverse support rod of the bed frame 1, and the specific structure of the armrest 30 is not limited here, and designers can make reasonable designs according to actual needs.

[0050] As Figures 3-5 shown, the anti - detachment sliding mechanism 10 includes a fixed seat 110.

[0051] The fixed seat 110 serves as a carrier of the anti - detachment sliding mechanism 10 to provide support for the sliding seat 120; the specific structure of the fixed seat 110 is not limited here, and designers can make reasonable designs according to actual needs; for example, the fixed seat 110 can be but not limited to a cylindrical - like structure or a plate - like structure.

[0052] The fixing base 110 is used to be installed on the top of the column 20; the specific connection method between the fixing base 110 and the column 20 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the fixing base 110 can be detachably connected to the column 20 by at least one of the ways such as screwing, clamping or plugging; for another example, the fixing base 110 can be non-detachably connected to the column 20 by gluing.

[0053] As Figure 3 、 Figure 6 and Figure 7 shown in the figure, the anti-disengagement sliding mechanism 10 further includes a sliding seat 120.

[0054] The sliding seat 120, as a sliding member of the anti-disengagement sliding mechanism 10, is used to be slidably connected to the fixing base 110; the specific structure of the sliding seat 120 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the sliding seat 120 can be in a plate-like structure.

[0055] The sliding seat 120 is arranged on the fixing base 110 and can slide relative to the fixing base 110 along the first direction OO', where the first direction OO' can be, but is not limited to, the extending direction of the column 20.

[0056] As Figures 4-8 shown in the figure, the anti-disengagement sliding mechanism 10 further includes an anti-disengagement structure 130.

[0057] The anti-disengagement structure 130, as a limiting structure of the anti-disengagement sliding mechanism 10, is used to limit the sliding seat 120 from disengaging from the fixing base 110 during the sliding process along the first direction OO' relative to the fixing base 110. The anti-disengagement structure 130 includes a mating part 131 and an abutting part 132.

[0058] The mating part 131, as one of the limiting members of the anti-disengagement structure 130, is used to be in abutting cooperation with the abutting part 132, and the mating part 131 is arranged on the fixing base 110; among them, the mating part 131 can be an entity structure such as a flange arranged on the fixing base 110 for abutting cooperation with the abutting part 132; the mating part 131 can also be a virtual structure such as a groove 132d formed on the fixing base 110 for abutting cooperation with the abutting part 132; the mating part 131 can further be a combination of an entity structure such as a flange arranged on the fixing base 110 for abutting cooperation with the abutting part 132 and a virtual structure such as a groove 132d formed on the fixing base 110 for abutting cooperation with the abutting part 132.

[0059] The abutting portion 132 serves as another limiting member of the anti - detachment structure 130 and is used to abut and cooperate with the mating portion 131. The abutting portion 132 is provided on the sliding seat 120. Among them, the abutting portion 132 can be a virtual structure such as a groove 132d formed on the sliding seat 120 for abutting and cooperating with the mating portion 131; the abutting portion 132 can also be a solid structure such as a flange provided on the sliding seat 120 for abutting and cooperating with the mating portion 131; the abutting portion 132 can further be a combination of a virtual structure such as a groove 132d formed on the sliding seat 120 for abutting and cooperating with the mating portion 131 and a solid structure such as a flange provided on the sliding seat 120 for abutting and cooperating with the mating portion 131.

[0060] It should be noted that the anti - detachment structure 130 can only be used as a limiting structure between the sliding seat 120 and the fixed seat 110. In this case, the anti - detachment sliding mechanism 10 further includes a connection structure independent of the anti - detachment structure 130 (such as the cooperation of a slider and a chute), and the sliding seat 120 and the fixed seat 110 are slidably connected through this connection structure. Of course, in addition to being used as a limiting structure between the sliding seat 120 and the fixed seat 110, the anti - detachment structure 130 can also be used as a connection structure between the sliding seat 120 and the fixed seat 110. In this case, the sliding seat 120 and the fixed seat 110 can also be slidably connected through the mating portion 131 and the abutting portion 132.

[0061] The sliding seat 120 abuts against the mating portion 131 in the second direction PP' and the third direction QQ' through the abutting portion 132 to limit the sliding seat 120 from detaching from the fixed seat 110 in the second direction PP' during the sliding process along the first direction OO' relative to the fixed seat 110. Among them, the second direction PP' and the third direction QQ' are two arbitrary intersecting directions in a plane perpendicular to the first direction OO' (for example, the second direction PP' and the third direction QQ' can be two mutually or nearly perpendicular directions in a plane perpendicular to the first direction OO'). The abutting of the abutting portion 132 and the mating portion 131 in the second direction PP' can limit the relative movement of the sliding seat 120 and the fixed seat 110 in the second direction PP', so as to limit the sliding seat 120 from detaching from the fixed seat 110 in the second direction PP' during the sliding process along the first direction OO' relative to the fixed seat 110, thereby avoiding the armrest 30 from detaching from the column 20 and effectively enhancing the connection stability between the armrest 30 and the column 20. The abutting of the abutting portion 132 and the mating portion 131 in the third direction QQ' can limit the relative movement of the sliding seat 120 and the fixed seat 110 in the third direction QQ', so as to limit the sliding seat 120 from detaching from the fixed seat 110 in the second direction PP' during the sliding process along the first direction OO' relative to the fixed seat 110, thereby avoiding the armrest 30 from detaching from the column 20 and effectively enhancing the connection stability between the armrest 30 and the column 20.

[0062] It is worth mentioning that the abutting action of the abutting portion 132 and the mating portion 131 in the second direction PP' can already limit the relative movement of the sliding seat 120 and the fixed seat 110 in the second direction PP'. In this way, it is possible to prevent the sliding seat 120 from detaching from the fixed seat 110 in the second direction PP' during the sliding of the sliding seat 120 relative to the fixed seat 110 along the first direction OO'. By designing the second direction PP' and the third direction QQ' as two arbitrary intersecting directions within a plane perpendicular to the first direction OO', the abutting action of the abutting portion 132 and the mating portion 131 in the third direction QQ' can cooperate with the abutting action of the abutting portion 132 and the mating portion 131 in the second direction PP'. In this way, only after overcoming the abutting action of the abutting portion 132 and the mating portion 131 in the third direction QQ' and then overcoming the abutting action of the abutting portion 132 and the mating portion 131 in the second direction PP' can the sliding seat 120 be detached from the fixed seat 110 in the second direction PP'. Therefore, based on the abutting of the abutting portion 132 and the mating portion 131 in the second direction PP', by designing the abutting of the abutting portion 132 and the mating portion 131 in the third direction QQ', it is possible to further effectively prevent the sliding seat 120 from detaching from the fixed seat 110 in the second direction PP' during the sliding of the sliding seat 120 relative to the fixed seat 110 along the first direction OO'.

[0063] As Figures 4-8 shown, the mating portion 131 includes a through groove 131a provided in the fixed seat 110 and extending along the first direction OO'; the abutting portion 132 includes a first abutting portion 132a. The first abutting portion 132a passes through the through groove 131a and is connected to the sliding seat 120 at one end. The first abutting portion 132a abuts against the groove wall surface of the through groove 131a in the third direction QQ'. Among them, the first abutting portion 132a can, but is not limited to, form an integral structure with the sliding seat 120 by injection molding or 3D printing. By embedding the first abutting portion 132a in the through groove 131a, the first abutting portion 132a and the groove wall surface of the through groove 131a abut against each other in the third direction QQ'. In this way, it is possible to limit the relative movement of the sliding seat 120 and the fixed seat 110 in the third direction QQ', so as to effectively enhance the connection stability and movement stability of the sliding seat 120 relative to the fixed seat 110 during the sliding along the first direction OO'.

[0064] As Figures 3-8As shown, the fixed seat 110 is sleeved on the top of the column 20. The engaging portion 131 further includes a rib 131b extending along the first direction OO'; the rib 131b is located on at least one side of the through groove 131a along the third direction QQ' and is connected to the inner wall surface of the fixed seat 110. The abutting portion 132 further includes a connecting portion 132b and a second abutting portion 132c; the connecting portion 132b is located in the cavity of the fixed seat 110 and is connected to the other end of the first abutting portion 132a; the second abutting portion 132c is located on at least one side of the through groove 131a along the third direction QQ' and is connected to the second abutting portion 132c. The second abutting portion 132c, the connecting portion 132b and the first abutting portion 132a enclose a groove 132d, and the rib 131b is embedded in the groove 132d, and the rib 131b abuts against the groove wall surface of the groove 132d in the second direction PP' and the third direction QQ'. Among them, the rib 131b can, but is not limited to, form an integral structure with the fixed seat 110 by injection molding or 3D printing; the connecting portion 132b can, but is not limited to, form an integral structure with the first abutting portion 132a by injection molding or 3D printing; the second abutting portion 132c can, but is not limited to, form an integral structure with the connecting portion 132b by injection molding or 3D printing. By designing the connecting portion 132b and the second abutting portion 132c, the first abutting portion 132a, the connecting portion 132b and the second abutting portion 132c jointly enclose and construct the groove 132d; on the one hand, the rib 131b is embedded in the groove 132d, so that the rib 131b and the groove wall surface of the groove 132d abut against each other in the second direction PP', so as to be able to limit the relative movement of the sliding seat 120 and the fixed seat 110 in the second direction PP', so as to effectively limit the sliding seat 120 from disengaging from the fixed seat 110 in the second direction PP' during the movement of the sliding seat 120 relative to the fixed seat 110 along the first direction OO'; on the other hand, the rib 131b is embedded in the groove 132d, so that the rib 131b and the groove wall surface of the groove 132d abut against each other in the third direction QQ', so as to be able to limit the relative movement of the sliding seat 120 and the fixed seat 110 in the third direction QQ', and in cooperation with the abutment of the rib 131b and the groove wall surface of the groove 132d in the second direction PP', it can further effectively limit the sliding seat 120 from disengaging from the fixed seat 110 in the second direction PP' during the sliding of the sliding seat 120 relative to the fixed seat 110 along the first direction OO'.

[0065] It should be noted that the first abutting portion 132a and the groove wall surface of the through groove 131a abut against each other in the third direction QQ', forming a primary mutual restriction of the abutting portion 132 and the mating portion 131 in the third direction QQ'; the groove wall surface of the groove 132d and the rib 131b abut against each other in the third direction QQ', forming a secondary mutual restriction of the abutting portion 132 and the mating portion 131 in the third direction QQ'; and the two mutual abuttings of the first abutting portion 132a and the groove wall surface of the through groove 131a, and the groove wall surface of the groove 132d and the rib 131b in the third direction QQ' cooperate with the mutual abutting of the groove wall surface of the groove 132d and the rib 131b in the second direction PP'. Thus, only after overcoming the two mutual abutting effects of the first abutting portion 132a and the groove wall surface of the through groove 131a, and the groove wall surface of the groove 132d and the rib 131b in the third direction QQ', and then overcoming the mutual abutting effect of the groove wall surface of the groove 132d and the rib 131b in the second direction PP', can the sliding seat 120 be disengaged from the fixed seat 110 along the second direction PP'. Therefore, based on the mutual abutting of the first abutting portion 132a and the groove wall surface of the through groove 131a, and the groove wall surface of the groove 132d and the rib 131b in the third direction QQ', further designing the mutual abutting of the groove wall surface of the groove 132d and the rib 131b in the second direction PP' can further effectively restrict the sliding seat 120 from disengaging from the fixed seat 110 along the second direction PP' during the sliding process of the sliding seat 120 relative to the fixed seat 110 along the first direction OO'.

[0066] As Figure 4 shown, the through groove 131a extends to penetrate through the top of the fixed seat 110. One end of the rib 131b close to the top of the fixed seat 110 has an inclined surface 131b1, and the distance between the inclined surface 131b1 and the inner wall surface of the fixed seat 110 gradually increases from the end close to the top of the fixed seat 110 to the end far from the top of the fixed seat 110. In this design, when the armrest 30 (introduced below) moves to the highest position relative to the fixed seat 110 along the first direction OO' through the sliding seat 120, by designing the inclined surface 131b1, the end of the rib 131b close to the bottom of the fixed seat 110 is thinned, avoiding excessive pre-pressure with the rib 131b (that is, avoiding excessive pressure generated by the strong mutual abutting between the rib 131b and the rib 131b) from spreading the upper opening of the through groove 131a and causing deformation of the fixed seat 110, so as to effectively reduce the possibility of the sliding seat 120 disengaging from the fixed seat 110.

[0067] As Figure 4 、 Figure 5 and Figure 8As shown in the figure, a receiving groove 111 extending along the first direction OO' is provided on the outer wall surface of the fixed seat 110. The receiving groove 111 is used to receive the surrounding member of the crib (not shown in the figure, such as a flexible fabric or a rigid baffle). The anti-detachment sliding mechanism 10 further includes a pressing member 140. At least a part of the pressing member 140 is embedded in the receiving groove 111, and the pressing member 140 is configured to press against the groove wall surface of the receiving groove 111, so that the groove wall surface of the through groove 131a abuts tightly against the first abutting portion 132a in the third direction QQ'. Among them, the pressing member 140 can be, but is not limited to, structures such as a pressing block or a pressing roller. The pressing member 140 can be partially embedded in the receiving groove 111 or completely embedded in the receiving groove 111. It can be understood that the fixed seat 110 is in a cylindrical structure sleeved on the top of the column 20. The first abutting portion 132a and the groove wall surface of the through groove 131a abut against each other in the third direction QQ'. During the process of the sliding seat 120 sliding relative to the fixed seat 110 along the first direction OO', the first abutting portion 132a pressing against the groove wall surface of the through groove 131a will cause a slight deformation of the fixed seat 110; and the receiving groove 111 can accommodate surrounding members such as flexible fabrics or rigid baffles. The receiving groove 111 is a long strip-shaped groove extending along the first direction OO'. Due to the existence of the receiving groove 111, the fixed seat 110 is more likely to deform under the abutting action of the first abutting portion 132a; and by designing the pressing member 140, the pressing member 140 is embedded in the receiving groove 111 to support the receiving groove 111, which can effectively prevent the fixed seat 110 from deforming under the abutting action of the first abutting portion 132a. Moreover, an interference fit is provided between the pressing member 140 and the groove wall surface of the receiving groove 111 to have a pressing force. This pressing force acts on the fixed seat 110 to make the groove wall surface of the through groove 131a abut tightly against the first abutting portion 132a in the third direction QQ'. In this way, the connection stability and movement stability of the sliding seat 120 relative to the fixed seat 110 during the sliding process along the first direction OO' can be further enhanced, thereby further effectively restricting the sliding seat 120 from detaching from the fixed seat 110 along the second direction PP' during the sliding process along the first direction OO' relative to the fixed seat 110.

[0068] It should be noted that in other embodiments, it may also be that the mating portion 131 includes the above-mentioned first abutting portion 132a, the above-mentioned connecting portion 132b, and the above-mentioned second abutting portion 132c; the corresponding abutting portion 132 includes the above-mentioned through groove 131a and the above-mentioned rib 131b; this will not be elaborated here.

[0069] Please refer to Figures 1-3 As shown in the figure, in the second aspect, the present application proposes a bed frame 1, which is applicable to a crib and can effectively prevent the armrest 30 from detaching from the column 20, so as to effectively enhance the connection stability between the armrest 30 and the column 20.

[0070] The bed frame 1 includes columns 20, armrests 30, a locking and unlocking assembly 40, and the above-mentioned anti-disengagement sliding mechanism 10. A fixed seat 110 is installed at the top of the column 20. The end of the armrest 30 is connected to the sliding seat 120. The locking and unlocking assembly 40 is installed on the sliding seat 120, and the locking and unlocking assembly 40 has a locking state and an unlocking state; in the locking state, the locking and unlocking assembly 40 is configured to lock the sliding seat 120 to the fixed seat 110 when the armrest 30 is in the lowest position; in the unlocking state, the locking and unlocking assembly 40 is configured to unlock the sliding seat 120 from the fixed seat 110 when the armrest 30 is in the lowest position; the locking and unlocking assembly 40 can be switched between the locking state and the unlocking state.

[0071] Among them, the column 20 serves as the longitudinal support rod of the bed frame 1, and the specific structure of the column 20 is not limited here. Designers can make reasonable designs according to actual needs.

[0072] The anti-disengagement sliding mechanism 10 serves as the connecting mechanism of the bed frame 1 to realize the connection between the armrest 30 and the column 20; the fixed seat 110 is installed at the top of the column 20; the specific connection method between the fixed seat 110 and the column 20 is not limited here. Designers can make reasonable designs according to actual needs; for example, the fixed seat 110 can be detachably connected to the column 20 by at least one of screwing, clamping, or plugging, etc.; for another example, the fixed seat 110 can be non-detachably connected to the column 20 by bonding, etc.

[0073] The armrest 30 serves as the transverse support rod of the bed frame 1, and the specific structure of the armrest 30 is not limited here. Designers can make reasonable designs according to actual needs. The end of the armrest 30 is connected to the sliding seat 120; the specific connection method between the armrest 30 and the sliding seat 120 is not limited here. Designers can make reasonable designs according to actual needs; for example, the armrest 30 can be detachably connected to the sliding seat 120 by at least one of screwing, clamping, or plugging, etc.; for another example, the armrest 30 can be non-detachably connected to the sliding seat 120 by bonding, etc.

[0074] On the one hand, the locking and unlocking assembly 40 serves as the locking structure of the bed frame 1 to realize the relative fixation of the positions between the sliding seat 120 and the fixed seat 110 when the armrest 30 is in the lowest position, and to realize the relative fixation of the positions between the sliding seat 120 and the top corner fixing member 60 (introduced below) when the armrest 30 is in the highest position; on the other hand, the locking and unlocking assembly 40 serves as the unlocking structure of the bed frame 1 to realize the relative change of the positions between the sliding seat 120 and the fixed seat 110 when the armrest 30 is in the lowest position, and to realize the relative change of the positions between the sliding seat 120 and the top corner fixing member 60 when the armrest 30 is in the highest position; the specific manifestation form of the locking and unlocking assembly 40 will be introduced in detail below.

[0075] When the armrest 30 is in the lowest position and the locking and unlocking assembly 40 is in the above-mentioned locked state, at this time, the sliding seat 120 is positioned on the fixed seat 110 via the locking and unlocking assembly 40, and the relative position between the sliding seat 120 and the fixed seat 110 is fixed; when the armrest 30 is in the lowest position and the locking and unlocking assembly 40 is in the above-mentioned unlocked state, at this time, the sliding seat 120 is released from the fixed seat 110 via the locking and unlocking assembly 40, and the relative position between the sliding seat 120 and the fixed seat 110 is changed. When the armrest 30 is in the highest position and the locking and unlocking assembly 40 is in the above-mentioned locked state, at this time, the sliding seat 120 is positioned on the top corner fixing member 60 via the locking and unlocking assembly 40, and the relative position between the sliding seat 120 and the top corner fixing member 60 is fixed; when the armrest 30 is in the highest position and the locking and unlocking assembly 40 is in the above-mentioned unlocked state, at this time, the sliding seat 120 is released from the top corner fixing member 60 via the locking and unlocking assembly 40, and the relative position between the sliding seat 120 and the top corner fixing member 60 is changed. By switching between the above-mentioned locked state and the above-mentioned unlocked state, the locking and unlocking assembly 40 can adjust the height of the armrest 30 by relying on the sliding seat 120.

[0076] Based on the bed frame 1 in the embodiment of the present application, having the above-mentioned anti-slip and anti-disengagement mechanism 10, during the process of the armrest 30 being switched from the highest position to the lowest position, or from the lowest position to the highest position, it can effectively limit the armrest 30 connected to the sliding seat 120 from disengaging from the column 20 along the second direction PP', so as to prevent the armrest 30 from disengaging from the column 20 and effectively enhance the connection stability between the armrest 30 and the column 20. By designing the locking and unlocking assembly 40, when the armrest 30 is in the lowest position, the locking and unlocking assembly 40 can achieve relative fixation of the position between the sliding seat 120 and the fixed seat 110 in the locked state, and the locking and unlocking assembly 40 can achieve relative change of the position between the sliding seat 120 and the fixed seat 110 in the unlocked state, so that the height of the armrest 30 is adjustable, which is convenient for users to use.

[0077] As Figure 4 、 Figure 5 、 Figure 9 and Figure 10 shown, a first locking hole 112 is provided at the bottom of the fixed seat 110. The locking and unlocking assembly 40 includes a locking member 41 and a driving member 42; the locking member 41 is arranged on the sliding seat 120, and the locking member 41 is configured to engage with the first locking hole 112 when the armrest 30 is in the lowest position; the driving member 42 is slidably arranged on the sliding seat 120 and connected to the locking member 41, and the driving member 42 is configured to drive the locking member 41 to move away from the first locking hole 112 by sliding relative to the sliding seat 120.

[0078] Among them, the locking member 41 serves as a clamping member of the locking and unlocking assembly 40 and is used to engage with the first locking hole 112 to relatively fix the positions between the sliding seat 120 and the fixed seat 110 when the armrest 30 is in the above-mentioned lowest position; the specific structure of the locking member 41 will be introduced in detail below.

[0079] The driving member 42 serves as a releasing member of the locking and unlocking assembly 40 and is used to drive the locking member 41 to move away from the first locking hole 112 to relatively change the positions between the sliding seat 120 and the fixed seat 110; the driving member 42 can be but is not limited to structures such as a dial block or a lever.

[0080] By designing the locking member 41, the locking member 41 is configured to engage with the first locking hole 112 when the armrest 30 is in the lowest position. At this time, the relative fixation of the positions between the sliding seat 120 and the fixed seat 110 can be realized to position the armrest 30 on the column 20 in the above-mentioned lowest position. By designing the driving member 42, the driving member 42 is configured to drive the locking member 41 to move away from the first locking hole 112 by sliding relative to the sliding seat 120. At this time, the relative change of the positions between the sliding seat 120 and the fixed seat 110 can be realized to adjust the height of the armrest 30.

[0081] Such as Figure 4 、 Figure 5 、 Figure 9 And Figure 10 As shown, the locking member 41 has a driving inclined surface 411a; the driving member 42 abuts against the driving inclined surface 411a. When the driving member 42 slides relative to the sliding seat 120, the driving member 42 pushes against the driving inclined surface 411a to make the locking member 41 move away from the first locking hole 112.

[0082] When the height of the armrest 30 needs to be adjusted, the user presses the driving member 42 to make the driving member 42 move relative to the sliding seat 120 to push against the driving inclined surface 411a of the locking member 41, so that the locking member 41 moves away from the column 20 to disengage from the first locking hole 112. At this time, the locking and unlocking assembly 40 is in the above-mentioned releasing state, and the sliding seat 120 can slide relative to the fixed seat 110 in the first direction OO' to adjust the height of the armrest 30.

[0083] Such as Figure 4 、 Figure 5 、 Figure 9 And Figure 10 As shown, the locking and unlocking assembly 40 further includes an elastic member 43. The two ends of the elastic member 43 respectively abut against the sliding seat 120 and the locking member 41; when the driving member 42 slides relative to the sliding seat 120, the driving member 42 pushes against the driving inclined surface 411a of the locking member 41 to make the locking member 41 squeeze the elastic member 43 and move away from the first locking hole 112.

[0084] Among them, the elastic member 43 can be but is not limited to a spring or a spring sheet, and the elastic member 43 is adapted to generate elastic deformation under the extrusion of the locking member 41. The locking member 41 can include a driving portion 411 and a locking portion 412. The driving portion 411 has the above-mentioned driving inclined surface 411a and is slidably connected to the sliding seat 120; both ends of the elastic member 43 respectively abut against the sliding seat 120 and the driving portion 411; the driving member 42 abuts against the driving inclined surface 411a of the driving portion 411. The locking portion 412 is fixedly connected to the driving portion 411. At this time, the driving member 42 pushes the driving inclined surface 411a of the driving portion 411 to cause the driving portion 411 to squeeze the elastic member 43 and drive the locking portion 412 to move away from the first locking hole 112.

[0085] By designing the elastic member 43, when the driving member 42 is not subjected to a pressing force, both ends of the elastic member 43 respectively abut against the sliding seat 120 and the locking member 41 (specifically, the above-mentioned driving portion 411), so that the elastic member 43 has an initial elastic deformation. The locking member 41 can be pressed tightly against the first locking hole 112 under the action of the elastic force generated by the initial elastic deformation, so as to enhance the connection stability between the locking member 41 and the first locking hole 112, thereby enhancing the connection stability when the sliding seat 120 is positioned on the fixed seat 110. By designing the elastic member 43, the elastic member 43 is adapted to further generate elastic deformation (greater than the above-mentioned initial elastic deformation) under the action of the above-mentioned pressing force, and the elastic force generated by the elastic deformation is adapted to cause the locking member 41 to automatically reset after the pressing force acting on the driving member 42 is withdrawn.

[0086] Such as Figure 1 、 Figure 11 and Figure 12 As shown, the bed frame 1 further includes an upper frame 50 and a top corner fixing member 60; the end of the upper frame 50 is connected to the top of the column 20 through the top corner fixing member 60; the top corner fixing member 60 is located above the fixed seat 110, and the top corner fixing member 60 is provided with a second locking hole 61. The locking member 41 is further configured to engage with the second locking hole 61 when the armrest 30 is in the highest position; the driving member 42 is further configured to drive the locking member 41 to move away from the second locking hole 61 by sliding relative to the sliding seat 120.

[0087] Among them, the upper frame 50 serves as the top support structure of the bed frame 1; the specific structure of the upper frame 50 is not limited here, and the designer can make a reasonable design according to actual needs.

[0088] The apex fixing member 60, as a connecting member of the bed frame 1, is used to realize the connection between the upper frame 50 and the column 20; the specific structure of the apex fixing member 60 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the apex fixing member 60 can be but is not limited to a right-angled plate-like structure or an arc-shaped plate-like structure. The end of the upper frame 50 is connected to the apex fixing member 60; the specific connection method between the apex fixing member 60 and the upper frame 50 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the apex fixing member 60 can be but is not limited to being detachably connected to the upper frame 50 by at least one of the methods such as screwing, clamping or plugging; again, for example, the apex fixing member 60 can be but is not limited to being non-detachably connected to the upper frame 50 by means of gluing. The apex fixing member 60 is connected to the top of the column 20; the specific connection method between the apex fixing member 60 and the column 20 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the apex fixing member 60 can be but is not limited to being detachably connected to the column 20 by at least one of the methods such as screwing, clamping or plugging; again, for example, the apex fixing member 60 can be but is not limited to being non-detachably connected to the column 20 by means of gluing.

[0089] The locking member 41, as a clamping member of the locking and unlocking assembly 40, is also used to engage with the second lock hole 61 to realize the relative fixation of the positions between the sliding seat 120 and the apex fixing member 60 when the armrest 30 is in the above-mentioned highest position.

[0090] The driving member 42, as a releasing member of the locking and unlocking assembly 40, is also used to drive the locking member 41 to move away from the second lock hole 61 to realize the relative change of the positions between the sliding seat 120 and the apex fixing member 60.

[0091] The locking member 41 is also configured to engage with the second lock hole 61 when the armrest 30 is in the highest position. At this time, the relative fixation of the positions between the sliding seat 120 and the apex fixing member 60 can be realized to position the armrest 30 on the column 20 in the above-mentioned highest position. The driving member 42 is also configured to drive the locking member 41 to move away from the second lock hole 61 by sliding relative to the sliding seat 120. At this time, the relative change of the positions between the sliding seat 120 and the apex fixing member 60 can be realized to adjust the height of the armrest 30.

[0092] As Figure 1 、 Figure 2 、 Figure 13 and Figure 14 shown, the bed frame 1 further includes a bottom frame 70, a support 81 and a pulley 82; the bottom frame 70 is connected to the bottom of the column 20 via the support 81; a convex platform 83 is provided on the bottom wall surface of the support 81 connected to one side of the bottom frame 70 in the length direction of the bed frame 1, and a pulley is installed on the support 81 provided with the convex platform 83.

[0093] Among them, the chassis 70 serves as the bottom support structure of the bed frame 1; the specific structure of the chassis 70 is not limited here, and the designer can make a reasonable design according to actual needs.

[0094] The support 81 serves as the foot seat of the bed frame 1 and is used to provide support for the chassis 70 on the one hand; the specific structure of the support 81 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the support 81 can be but is not limited to a quasi-rectangular block structure. The chassis 70 is connected to the support 81 on one side in the length direction of the bed frame 1; the specific connection method between the support 81 and the chassis 70 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the support 81 can be but is not limited to being detachably connected to the chassis 70 by at least one of the methods such as screwing, clamping or plugging; and for another example, the support 81 can be but is not limited to being non-detachably connected to the chassis 70 by gluing. The support 81 serves as the foot seat of the bed frame 1 and is used to provide support for the column 20 on the other hand, and the support 81 is connected to the bottom of the column 20; the specific connection method between the support 81 and the column 20 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the support 81 can be but is not limited to being detachably connected to the column 20 by at least one of the methods such as screwing, clamping or plugging; and for another example, the support 81 can be but is not limited to being non-detachably connected to the column 20 by gluing.

[0095] The boss 83 can be but is not limited to being integrally formed with the support 81 by injection molding or 3D printing. More specifically, an inclined surface is designed on the side of the boss 83 facing away from the support 81, and the distance between the inclined surface and the bottom wall surface of the support 81 gradually increases from the side close to the central axis of the bed frame 1 to the side far from the central axis of the bed frame 1.

[0096] The pulley 82 serves as a sliding member of the bed frame 1, and the pulley 82 is connected to the support 81; the specific connection method between the pulley 82 and the support 81 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the pulley 82 can be but is not limited to being detachably connected to the support 81 by methods such as screwing, clamping or plugging; and for another example, the pulley 82 can be but is not limited to being non-detachably connected to the support 81 by gluing.

[0097] By designing the support 81, the support 81 provides effective support for the chassis 70 and the column 20, and when it is not necessary to move the bed frame 1, the support 81 makes effective contact with the ground so that the entire bed frame 1 can be placed stably on the ground; by designing the pulley 82, when it is necessary to move the bed frame 1, the user only needs to lift the bed frame 1 along the side without the pulley 82 in its own length direction, so that the support 81 is spaced from the ground and the pulley 82 contacts the ground. At this time, it is convenient for the user to move the bed frame 1 by means of the pulley 82; by designing the boss 83 on the bottom wall surface of the support 81, the boss 83 makes the bottom wall surface of the support 81 closer to the ground. Compared with the case where the boss 83 is not designed, at this time, the user needs to lift the bed frame 1 along the side without the pulley 82 in its own length direction higher to make the support 81 spaced from the ground enough and the pulley 82 can slide along the ground. In this way, the design of the boss 83 can effectively reduce the risk of the bed frame 1 accidentally sliding due to the side of the bed frame 1 without the pulley 82 being accidentally lifted by a certain height along its own length direction.

[0098] Please refer to Figures 1-2 As shown, in the third aspect, the present application provides a baby crib, which includes the above-mentioned bed frame 1.

[0099] Based on the baby crib in the embodiment of the present application, having the above-mentioned bed frame 1, it can effectively prevent the armrest 30 from detaching from the column 20 and effectively enhance the connection stability between the armrest 30 and the column 20.

[0100] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0101] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-slip and anti-drop mechanism, characterized in that Applied to a bed frame, the bed frame including columns and handrails; the anti - detachment sliding mechanism includes: A fixed seat for being installed on the top of the column; A sliding seat for being installed at the end of the handrail, arranged on the fixed seat and capable of sliding relative to the fixed seat in a first direction; An anti - detachment structure including a mating portion and an abutting portion, the mating portion being arranged on the fixed seat, and the abutting portion being arranged on the sliding seat; Wherein, the sliding seat abuts against the mating portion through the abutting portion in a second direction and a third direction to limit the sliding seat from detaching from the fixed seat in the second direction during the process of sliding relative to the fixed seat in the first direction; wherein, the second direction and the third direction are two arbitrarily intersecting directions in a plane perpendicular to the first direction.

2. The anti - detachment sliding mechanism according to claim 1, wherein: The mating portion includes a through - slot arranged on the fixed seat and extending along the first direction; The abutting portion includes a first abutting part which passes through the through - slot and has one end connected to the sliding seat, and the first abutting part abuts against the wall surface of the through - slot in the third direction.

3. The anti-slip and anti-drop mechanism according to claim 2, characterized in that The fixed seat is sleeved on the top of the column; The mating portion further includes a rib extending along the first direction, the rib being located on at least one side of the through - slot in the third direction and connected to the inner wall surface of the fixed seat; The abutting portion further includes a connecting part and a second abutting part, the connecting part being located in the cavity of the fixed seat and connected to the other end of the first abutting part, and the second abutting part being located on at least one side of the through - slot in the third direction and connected to the second abutting part; Wherein, the second abutting part, the connecting part and the first abutting part enclose to form a groove, the rib is embedded in the groove, and the rib abuts against the wall surface of the groove in the second direction and the third direction.

4. The anti - detachment sliding mechanism according to claim 3, wherein: The through - slot extends to penetrate through the top of the fixed seat; One end of the rib close to the top of the fixed seat has an inclined surface, and from the end close to the top of the fixed seat to the end far from the top of the fixed seat, the distance between the inclined surface and the inner wall surface of the fixed seat gradually increases.

5. The anti - detachment sliding mechanism according to claim 2, wherein: The outer wall surface of the fixed seat is provided with a receiving groove extending along the first direction, and the receiving groove is used for receiving a surrounding member; The anti - detachment sliding mechanism further includes a pressing member, at least a part of the pressing member is embedded in the receiving groove, and the pressing member is configured to press against the wall surface of the receiving groove to make the wall surface of the through - slot abut tightly against the first abutting part in the third direction.

6. A bed frame, characterized in that, Applied to a baby crib, the bed frame includes: Columns; The anti - detachment sliding mechanism according to any one of claims 1 - 5, the fixed seat being installed on the top of the column; Handrails, the ends of the handrails being connected to the sliding seats; A lock-unlock assembly is installed on the sliding seat. The lock-unlock assembly has a locked state and an unlocked state. In the locked state, the lock-unlock assembly is configured to lock the sliding seat to the fixed seat when the armrest is in the lowest position. In the unlocked state, the lock-unlock assembly is configured to unlock the sliding seat from the fixed seat when the armrest is in the lowest position. The lock-unlock assembly can be switched between the locked state and the unlocked state.

7. The bed frame according to claim 6, wherein, A first lock hole is provided at the bottom of the fixed seat. The lock-unlock assembly includes: A locking member is provided on the sliding seat and is configured to engage with the first lock hole when the armrest is in the lowest position. A driving member is slidably provided on the sliding seat and is connected to the locking member. The driving member is configured to drive the locking member to move out of the first lock hole by sliding relative to the sliding seat.

8. The bed frame according to claim 7, wherein The bed frame further includes an upper frame and a top corner fixing member. The end of the upper frame is connected to the top of the column through the top corner fixing member. The top corner fixing member is located above the fixed seat, and the top corner fixing member is provided with a second lock hole. The locking member is further configured to engage with the second lock hole when the armrest is in the highest position. The driving member is further configured to drive the locking member to move out of the second lock hole by sliding relative to the sliding seat.

9. The bed frame according to claim 6, wherein The bed frame further includes a bottom frame, a support and a pulley. The bottom frame is connected to the bottom of the column through the support. A boss is provided on the bottom wall surface of the support connected to one side of the bottom frame in the length direction of the bed frame, and the pulley is installed on the support provided with the boss.

10. A cot, characterized in that, Including the bed frame according to any one of claims 6-9.

Images