Upright column mechanism and baby crib
By designing the avoidance part and multiple notch grooves in the column mechanism of the crib, the problem of insufficient column shrinkage distance is solved, and the better storage effect of the crib is achieved.
Patent Information
- Application Number
- CN202422151428.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Due to structural limitations, the column mechanism of the existing crib is limited, which makes the overall space occupancy inconvenient for storage.
A column mechanism is designed, by providing an avoiding part on the lower inner plug, the sliding joint can avoid it when the upper column and the lower column are contracted relative to each other, thereby increasing the shrinkage distance, and ensuring movement smoothness and stability through the coordination of multiple notch grooves and convex parts.
It effectively increases the shrinkage distance between the upper column and the lower column, reduces the space occupancy rate after the crib is disassembled, and facilitates storage.
Smart Images
Figure CN223054183U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of baby equipment, and particularly relates to a column mechanism and a baby crib. Background Art
[0002] A baby crib includes a bottom frame, an upper frame, and a column mechanism; the bottom frame is connected to the bottom of the column mechanism; the upper frame is detachably connected to the top of the column mechanism; the column mechanism is a telescopic structure so that the height of the baby crib is adjustable.
[0003] When the baby crib is idle, the user usually needs to detach the upper frame from the upper end of the column mechanism and make the column mechanism contract to the shortest length, so as to reduce the overall space occupancy rate of the baby crib for easy storage. However, due to the limitations of the structure of the column mechanism in the related art, the contraction distance of the column mechanism is limited, resulting in a large overall space occupancy rate of the baby crib and inconvenience for storage. Summary of the Utility Model
[0004] An embodiment of the present application provides a column mechanism and a baby crib, which can solve the problem that the contraction distance of the column mechanism is limited due to the limitations of the structure of the column mechanism in the related art, resulting in a large overall space occupancy rate of the baby crib and inconvenience for storage.
[0005] In a first aspect, an embodiment of the present application provides a column mechanism; the column mechanism is applied to a baby crib, the baby crib includes a bottom frame and a detachable upper frame, the column mechanism includes a lower column, an upper column, a pull handle, and a lower inner plug, the bottom of the lower column is used for connecting to the bottom frame, the top of the upper column is used for connecting to the upper frame, the upper column is sleeved on the lower column and can make relative telescopic movement with the lower column, a through groove is provided on the side wall surface of the upper column, the pull handle includes a pull handle body and a sliding connection part, the pull handle body is slidably connected to the upper column, the sliding connection part is provided on the pull handle body and at least partially passes through the through groove and extends into the upper column, the lower inner plug is connected to the top of the lower column, and the lower inner plug has an avoidance part, and the avoidance part is configured to avoid the sliding connection part during the relative telescopic movement of the upper column and the lower column.
[0006] Based on the column mechanism of the embodiment of the present application, by designing an avoidance part on the lower inner plug, during the relative contraction movement of the upper column and the lower column, the sliding connection part can pass through the avoidance part, and at this time, the sliding connection part will not interfere with the lower inner plug, so that the upper column and the lower column can continue to make relative contraction movement, which can further increase the contraction distance when the upper column and the lower column make relative contraction movement, thereby further reducing the space occupancy rate after the baby crib is disassembled and facilitating the storage of the baby crib.
[0007] In some embodiments, the avoidance part includes a notch groove provided on the side of the lower inner plug facing the sliding connection part.
[0008] Based on the above embodiments, during the relative contraction movement of the upper column and the lower column, the sliding connection part can pass through the notch groove, and the sliding connection part will not interfere with the lower inner plug, so that the upper column and the lower column can continue to perform relative contraction movement, which can further increase the contraction distance when the upper column and the lower column perform relative contraction movement, thereby further reducing the space occupancy rate after the crib is disassembled and facilitating the storage of the crib.
[0009] In some of the embodiments, along the depth direction of the notch groove, the depth dimension of the notch groove is greater than the thickness dimension of the sliding connection part; and / or, along the width direction of the notch groove, the width dimension of the notch groove is greater than the width dimension of the sliding connection part.
[0010] Based on the above embodiments, during the relative telescopic movement of the upper column and the lower column, the possibility of the sliding connection part being tightly pressed against the groove wall surface of the notch groove can be effectively reduced, thereby ensuring the smoothness of the relative telescopic movement of the upper column and the lower column.
[0011] In some of the embodiments, a convex part is provided on the inner side wall surface of the upper column, and a groove corresponding to the convex part is provided on the side wall surface of the lower inner plug; the number of notch grooves is multiple, and along the width direction of the groove, the multiple notch grooves are respectively arranged on both sides of the groove.
[0012] Based on the above embodiments, when the upper column and the lower column are assembled, the convex part is embedded in the groove of the lower inner plug, and the convex part and the groove cooperate with each other to form a blocking structure, which can prevent the upper column from rotating relative to the lower column around the central axis of the lower column, so as to enhance the connection stability between the upper column and the lower column. By arranging the multiple notch grooves on both sides of the groove, the arrangement of the multiple sliding connection parts corresponding to the multiple notch grooves on the handle body is relatively scattered, so that the smoothness and stability of the sliding of the handle body relative to the upper column can be ensured.
[0013] In some of the embodiments, a through groove is provided on the side wall surface of the handle body; the handle body further includes a connecting part, the connecting part is located in the through groove and is connected to the handle body in a cantilever shape; the sliding connection part is arranged at one end of the connecting part away from the handle body.
[0014] Based on the above embodiments, the connecting part in a cantilever shape is suitable for generating elastic deformation. By arranging the sliding connection part on the cantilever-shaped connecting part, the sliding connection part can be offset in the direction away from or towards the extension direction of the upper column under the elastic deformation of the connecting part. In this way, during the relative telescopic movement of the upper column and the lower column, the possibility of jamming between the sliding connection part and the avoidance part can be effectively reduced, thereby ensuring the smoothness of the relative telescopic movement of the upper column and the lower column.
[0015] In some of these embodiments, the column mechanism further includes a connecting frame, and the upper frame is detachably connected to the upper column via the connecting frame; when the upper frame is installed on the top of the upper column, the connecting frame is inserted into the upper column, and the upper column and the lower column can perform a relative contraction movement until the lower inner plug abuts against the bottom end of the connecting frame; wherein, the bottom end of the connecting frame is farther from the top of the upper column than the sliding contact portion; when the upper frame is detached from the top of the upper column, the connecting frame extends out of the upper column, and the upper column and the lower column can perform a relative contraction movement until the sliding contact portion passes through the avoidance portion.
[0016] Based on the above embodiments, when the upper frame is installed on the top of the upper column via the connecting frame, the maximum contraction distance when the upper column and the lower column perform a relative contraction movement at this time corresponds to the contraction distance between the upper column and the lower column when the lower inner plug moves to abut against the bottom end of the connecting frame. When the upper frame is detached from the top of the upper column, at this time the sliding contact portion passes through the avoidance portion, and the sliding contact portion will not interfere with the lower inner plug, enabling the upper column and the lower column to continue to perform a relative contraction movement, so that the contraction distance when the upper column and the lower column perform a relative contraction movement can be further increased, thereby further reducing the space occupancy rate after the crib is disassembled and facilitating the storage of the crib.
[0017] In some of these embodiments, the lower inner plug includes a main body portion and a plugging portion; the main body portion protrudes from the lower column, so that the side wall surface of the main body portion is farther from the central axis of the lower column than the side wall surface of the lower column, and the avoidance portion is arranged at the edge of the main body portion facing the sliding contact portion; the plugging portion is arranged on one side of the main body portion and inserted into the lower column, and the plugging portion has a plurality of side wall surfaces arranged along the extending direction of the lower column, and at least part of the side wall surfaces of the plugging portion abut against the inner side wall surface of the lower column.
[0018] Based on the above embodiments, by designing the main body portion to protrude from the lower column so that the side wall surface of the main body portion is farther from the central axis of the lower column than the side wall surface of the lower column, a step structure is formed by spacing the periphery of the main body portion and the periphery of the plugging portion. When the lower inner plug is inserted into the top of the lower column, the main body portion protrudes from the top of the lower column and abuts against the lower column downward, so that the axial movement of the lower inner plug relative to the lower column along the axis of the lower column can be restricted, thereby enhancing the connection stability between the lower inner plug and the lower column; by designing at least part of the plurality of side wall surfaces of the plugging portion arranged around the central axis of the lower column to abut against the inner side wall surface of the lower column, the contact area between the lower inner plug and the lower column is increased, and the connection stability between the lower inner plug and the lower column can be further enhanced.
[0019] In some of these embodiments, positioning holes are provided on the side wall surface of the plugging portion, and through holes corresponding to the positioning holes are provided on the side wall surface of the lower column; the column mechanism further includes a fastener, and the fastener passes through the through hole and is connected to the positioning hole to position the lower inner plug on the lower column.
[0020] Based on the above embodiments, by designing the fastener, the fastener passes through the through hole and is connected to the positioning hole, so that the relative fixation of the position between the lower inner plug and the lower column can be realized, which is convenient for the installation and disassembly between the lower inner plug and the lower column.
[0021] In some of these embodiments, the column mechanism further includes a locking and unlocking assembly. The locking and unlocking assembly is disposed on the upper column and is connected to the handle body; the handle body drives the locking and unlocking assembly to move by sliding relative to the upper column, so that the locking and unlocking assembly switches between a locked state and an unlocked state. In the locked state, the locking and unlocking assembly is configured to lock the upper column to the lower column; in the unlocked state, the locking and unlocking assembly is configured to unlock the upper column from the lower column.
[0022] Based on the above embodiments, by designing the locking and unlocking assembly, the handle body can drive the locking and unlocking assembly to switch between the locked state and the unlocked state by sliding relative to the upper column, so as to realize the relative change and relative fixation of the position between the upper column and the lower column, thereby making the height of the crib adjustable and convenient for users to use.
[0023] In a second aspect, an embodiment of the present application provides a crib; the crib includes a bottom frame, an upper frame, and the above-mentioned column mechanism. The upper frame is detachably connected to the top of the upper column, and the bottom frame is connected to the bottom of the lower column.
[0024] Based on the crib of the embodiment of the present application, having the above column mechanism can further increase the contraction distance when the upper column and the lower column make a relative contraction movement, thereby further reducing the space occupancy rate after the crib is disassembled and facilitating the storage of the crib. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] 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 use in the description of the embodiments or the prior art. Obviously, the drawings in the following description 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.
[0026] Figure 1 It is a schematic structural diagram of a crib in an embodiment of the present application;
[0027] Figure 2 It is a schematic structural diagram of a column mechanism and a bottom frame in an embodiment of the present application;
[0028] Figure 3 It is Figure 2 The enlarged structural diagram at A in
[0029] Figure 4 It is a schematic structural diagram of a lower inner plug disposed at the top of a lower column in an embodiment of the present application;
[0030] Figure 5 The enlarged structural schematic diagram at position B in Figure 4 ;
[0031] Figure 6 The partial sectional structural schematic diagram when the upper column and the lower column in an embodiment of the present application perform relative contraction movement until there is a spaced arrangement between the bottom end of the lower inner plug and the connecting frame;
[0032] Figure 7 The partial sectional structural schematic diagram when the upper column and the lower column in an embodiment of the present application perform relative contraction movement until the bottom end of the lower inner plug abuts against the connecting frame;
[0033] Figure 8 The partial sectional structural schematic diagram when the upper column and the lower column in an embodiment of the present application perform relative contraction movement until the sliding part passes through the avoidance part;
[0034] Figure 9 The enlarged structural schematic diagram at position C in Figure 8 ;
[0035] Figure 10 The structural schematic diagram of the lower inner plug in an embodiment of the present application;
[0036] Figure 11 The structural schematic diagram from another perspective in Figure 10 ;
[0037] Figure 12 The structural schematic diagram of the pull handle in an embodiment of the present application;
[0038] Figure 13 The structural schematic diagram of the connecting frame arranged on the upper frame in an embodiment of the present application;
[0039] Figure 14 The partial sectional structural schematic diagram of the column mechanism in an embodiment of the present application;
[0040] Figure 15 The enlarged structural schematic diagram at position D in Figure 14 ;
[0041] Figure 16 The enlarged structural schematic diagram at position E in Figure 14 ;
[0042] Reference numerals: 1, crib; 10, chassis; 20, upper frame; 30, column mechanism; 31, lower column; 31a, perforation; 31b, adjustment hole; 32, upper column; 321, convex part; 32a, through groove; 33, pull handle; 331, pull handle body; 331a, through slot; 332, sliding connection part; 333, connection part; 34, lower inner plug; 34a, avoidance part; 34a1, notch groove; 34b, groove; 341, main body part; 342, insertion part; 342a, positioning hole; 35, connecting frame; 36, locking and unlocking assembly; 361, driving part; 361a, driving inclined surface; 362, locking part; 363, spring; 37, upper inner plug. Detailed implementation manners
[0043] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0044] In the related art, a crib includes a chassis, an upper frame and a column mechanism; the chassis is connected to the bottom of the column mechanism, and the upper frame is detachably connected to the top of the column mechanism; the column mechanism is a telescopic structure so that the height of the crib is adjustable.
[0045] When the crib is idle, the user usually needs to detach the upper frame from the upper end of the column mechanism and make the column mechanism contract to the shortest length, so as to reduce the overall space occupancy of the crib for easy storage.
[0046] Due to the limitation of the structure of the column mechanism itself, for example, the column mechanism includes a lower column, an upper column, a lower inner plug and a pull handle; the bottom end of the lower column is connected to the chassis; the top end of the upper column is detachably connected to the upper frame, and the upper column is sleeved on the lower column and can slide relative to the lower column to form a telescopic structure; the lower inner plug is arranged at the top of the lower column; the pull handle is slidably connected to the upper column and partially extends into the upper column, and the pull handle is configured to relatively fix and relatively change the positions between the upper column and the lower column by sliding relative to the upper column. However, during the relative contraction movement between the upper column and the lower column, when the lower inner plug abuts against the part of the pull handle extending into the upper column, since the part of the pull handle extending into the upper column will interfere with the lower inner plug, this will limit the relative contraction movement between the upper column and the lower column, making the contraction distance limited when the upper column and the lower column make relative contraction movement, so that the overall space occupancy of the crib is large and not convenient for storage.
[0047] Please refer to Figures 1 - 5As shown in the figure, to solve the above technical problems, in a first aspect, the present application proposes a column mechanism 30, which is applied to a crib 1 and can increase the contraction distance when the upper column 32 and the lower column 31 perform relative contraction movement, so as to reduce the space occupancy rate after the crib 1 is disassembled and facilitate the storage of the crib 1.
[0048] The column mechanism 30 is applied to the crib 1, and the crib 1 includes a bottom frame 10 and a detachable upper frame 20; the column mechanism 30 includes a lower column 31, an upper column 32, a pull handle 33 and a lower inner plug 34. The bottom of the lower column 31 is used to connect to the bottom frame 10. The top of the upper column 32 is used to connect to the upper frame 20. The upper column 32 is sleeved on the lower column 31 and can perform relative telescopic movement with the lower column 31. A through groove 32a is provided on the side wall surface of the upper column 32. The pull handle 33 includes a pull handle body 331 and a sliding connection portion 332; the pull handle body 331 is slidably connected to the upper column 32; the sliding connection portion 332 is provided on the pull handle body 331 and at least partially passes through the through groove 32a and extends into the upper column 32. The lower inner plug 34 is connected to the top of the lower column 31, and the lower inner plug 34 has an avoidance portion 34a; the avoidance portion 34a is configured to avoid the sliding connection portion 332 during the relative telescopic movement of the upper column 32 and the lower column 31.
[0049] The following combines Figures 1 - 16 to introduce the specific structure of the column mechanism 30 in detail.
[0050] As Figure 1 shown, the column mechanism 30 is applied to the crib 1, and the crib 1 includes a bottom frame 10 and an upper frame 20.
[0051] The bottom frame 10 serves as the bottom support structure of the crib 1; the specific structure of the bottom frame 10 is not limited here, and designers can make reasonable designs according to actual needs; for example, the bottom frame 10 includes two parallel cross beams, and the cross beams can be arc-shaped tubular structures or linear tubular structures. When the cross beam is an arc-shaped tubular structure, the crib 1 can also be used as a rocking crib; for another example, the bottom frame 10 can be but not limited to a rectangular frame or a circular frame structure.
[0052] The upper frame 20 serves as the top support structure of the crib 1 and is used to provide support for the crib body (not shown in the figure) of the crib 1; the specific shape of the upper frame 20 is not limited here, and designers can make reasonable designs according to actual needs; for example, the shape of the upper frame 20 can be but not limited to rectangular or circular.
[0053] The upper frame 20 is detachably connected to the column mechanism 30, so that the disassembly, assembly, storage of the crib 1 can be realized, which is convenient for the storage and carrying of the crib 1; the specific detachable connection method between the upper frame 20 and the column mechanism 30 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the upper frame 20 can be detachably connected to the column mechanism 30 by at least one of the ways such as screwing, clamping or plugging, but not limited to these.
[0054] Of course, the crib 1 can also include a pulley set (not shown in the figure), and the pulley set is installed on the chassis 10, so as to facilitate the movement of the crib 1. The specific connection method between the pulley set and the chassis 10 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the pulley set can be detachably connected to the chassis 10 by at least one of the ways such as screwing, clamping or plugging, but not limited to these; for another example, the pulley set can be non-detachably connected to the chassis 10 by welding or gluing, but not limited to these.
[0055] As Figures 2 - 9 shown, the column mechanism 30 includes a lower column 31, an upper column 32, a handle 33 and a lower inner plug 34.
[0056] The lower column 31 is used as one telescopic member of the column mechanism 30 to support the upper frame 20; the specific structure of the lower column 31 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the cross-section (i.e., the cross-sectional area) of the lower column 31 along the direction perpendicular to its own extension direction can be in a shape similar to a "concave shape".
[0057] The bottom of the lower column 31 is used to connect to the chassis 10; the specific connection method between the lower column 31 and the chassis 10 is not limited here, and the designer can make a reasonable choice according to actual needs; for example, the lower column 31 can be detachably connected to the chassis 10 by at least one of the ways such as screwing, clamping or plugging, but not limited to these; for another example, the lower column 31 can also be non-detachably connected to the chassis 10 by welding, but not limited to this.
[0058] The upper column 32 is used as another telescopic member of the column mechanism 30 to support the upper frame 20. The specific structure of the upper column 32 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the cross-section (i.e., the cross-sectional area) of the upper column 32 along the direction perpendicular to its own extension direction can be in a shape similar to a "concave shape".
[0059] The top of the upper column 32 is used to connect with the upper frame 20. It should be noted that the upper frame 20 can directly achieve detachable connection with the upper column 32 through its own sub-component structure, or the upper frame 20 can indirectly achieve detachable connection with the upper column 32 through an intermediate connection structure (such as the connecting frame 35 introduced below, which belongs to the sub-component of the column mechanism 30).
[0060] The upper column 32 is sleeved on the lower column 31 and can move relative to the lower column 31 in a telescopic manner, that is, the upper column 32 and the lower column 31 are sleeved to form a telescopic structure. For example, when the upper column 32 and the lower column 31 move relatively and extend, the distance between the upper frame 20 and the bottom frame 10 increases, and the height of the crib body of the baby crib 1 from the ground increases; for another example, when the upper column 32 and the lower column 31 move relatively and contract, the distance between the upper frame 20 and the bottom frame 10 decreases, and the height of the crib body of the baby crib 1 from the ground decreases.
[0061] A through groove 32a is provided on the side wall surface of the upper column 32. For example, the through groove 32a can be a long strip groove extending along the extending direction of the upper column 32; for another example, the through groove 32a can also be a long strip groove extending along any direction intersecting with the extending direction of the upper column 32.
[0062] As Figures 2 - 9 shown, the pull handle 33, as the driving member 361 of the column mechanism 30, is used to drive the locking and unlocking assembly 36 (introduced below) to move, so that the locking and unlocking assembly 36 can be switched between the locked state and the unlocked state; the pull handle 33 includes a pull handle body 331 and a sliding connection portion 332.
[0063] The pull handle body 331 is the main structure of the pull handle 33. The specific structure of the pull handle body 331 is not limited here, and designers can make reasonable designs according to actual needs. For example, the pull handle body 331 can be in a cylindrical-like structure, and at this time, the pull handle body 331 is slidably sleeved on the periphery of the upper column 32; for another example, the pull handle body 331 is in a plate-like structure, and at this time, the pull handle body 331 is slidably connected to one side of the side wall surface where the through groove 32a of the upper column 32 is located.
[0064] The sliding connection part 332 can serve as the connection structure of the pull handle 33, enabling the pull handle body 331 to be slidably connected to the through groove 32a of the upper column 32 through the sliding connection part 332 (at this time, the through groove 32a of the upper column 32 is equivalent to a sliding groove); the sliding connection part 332 can also serve as the limiting structure of the pull handle 33, enabling the pull handle body 331 to be inserted and matched with the through groove 32a of the upper column 32 through the sliding connection part 332 (at this time, the through groove 32a of the upper column 32 is equivalent to a limiting groove), and the corresponding pull handle body 331 can be slidably connected to the upper column 32 through other structures different from the sliding connection part 332 (such as the cooperation of a slider and a sliding groove). The specific structure of the sliding connection part 332 is not limited here, and designers can make reasonable designs according to actual needs; for example, when the pull handle body 331 is sleeved around the upper column 32 in a cylindrical-like structure, at this time, whether the sliding connection part 332 serves as the connection structure of the pull handle 33 or the limiting structure of the pull handle 33, the cross-section of the sliding connection part 332 in the direction perpendicular to the extension direction of the upper column 32 can be but is not limited to being "circular" or "polygonal"; for another example, when the pull handle body 331 is slidably connected to one side of the side wall surface where the through groove 32a of the upper column 32 is located in a plate-like structure, at this time, if the sliding connection part 332 serves as the connection structure of the pull handle 33, the cross-section of the sliding connection part 332 in the direction perpendicular to the extension direction of the upper column 32 can be but is not limited to being similar to a "⊥ shape" or a "work shape", and at this time, if the sliding connection part 332 serves as the limiting structure of the pull handle 33, the cross-section of the sliding connection part 332 in the direction perpendicular to the extension direction of the upper column 32 can be but is not limited to being "circular" or "polygonal".
[0065] The sliding connection part 332 is provided on the pull handle body 331; the specific connection method between the sliding connection part 332 and the pull handle body 331 is not limited here, and designers can make reasonable designs according to actual needs; for example, when the sliding connection part 332 and the pull handle body 331 are in a split structure, the sliding connection part 332 can be connected to the pull handle body 331 by at least one of the methods such as screwing, clamping or inserting; for another example, when the sliding connection part 332 and the pull handle body 331 are in an integral structure, the sliding connection part 332 can be integrally formed with the pull handle body 331 by injection molding or 3D printing.
[0066] At least a part of the sliding connection part 332 passes through the through groove 32a and extends into the upper column 32; for example, a part of the sliding connection part 332 can pass through the through groove 32a and extend into the cavity of the upper column 32, and at this time, the remaining part of the sliding connection part 332 is exposed outside the cavity of the upper column 32; for another example, the whole part of the sliding connection part 332 can also pass through the through groove 32a and extend entirely into the cavity of the upper column 32.
[0067] Such as Figures 2 - 9As shown, the lower inner plug 34 can be used as a seal for the column mechanism 30 to seal the top of the lower column 31, and the lower inner plug 34 can also be used as a reinforcement for the column mechanism 30 to provide support for the top of the lower column 31 to prevent deformation of the top of the lower column 31; the specific structure of the lower inner plug 34 will be introduced in detail below.
[0068] The lower inner plug 34 is connected to the top of the lower column 31; the specific connection method between the lower inner plug 34 and the lower column 31 is not limited here, and the designer can make a reasonable design according to actual needs; for example, the lower inner plug 34 can be detachably connected to the lower column 31 by at least one of screwing, clamping or plugging, etc.; for another example, the lower inner plug 34 can be non-detachably connected to the lower column 31 by gluing.
[0069] It can be understood that the upper column 32 is sleeved on the lower column 31, and the sliding part 332 passes through the through groove 32a of the upper column 32 and at least partially extends into the cavity of the upper column 32. When the upper frame 20 is detached from the top of the upper column 32, during the relative contraction movement of the upper column 32 and the lower column 31, there is a situation where the lower inner plug 34 moves with the lower column 31 until it abuts against the sliding part 332. At this time, the sliding part 332 interferes with the lower inner plug 34, which will limit the relative contraction movement of the upper column 32 and the lower column 31, so that the contraction distance during the relative contraction movement of the upper column 32 and the lower column 31 is limited (at this time, the maximum first contraction distance during the relative contraction movement of the upper column 32 and the lower column 31 corresponds to the contraction distance between the upper column 32 and the lower column 31 when the lower inner plug 34 moves to abut against the sliding part 332). Therefore, in order to further increase the contraction distance during the relative contraction movement of the upper column 32 and the lower column 31 when the upper frame 20 is detached from the top of the upper column 32, an avoidance part 34a is designed on the lower inner plug 34, and the avoidance part 34a is configured to avoid the sliding part 332 during the relative telescopic movement of the upper column 32 and the lower column 31. In this way, during the relative contraction movement of the upper column 32 and the lower column 31, the sliding part 332 can pass through the avoidance part 34a. At this time, the sliding part 332 will not interfere with the lower inner plug 34, so that the upper column 32 and the lower column 31 can continue to make relative contraction movements, thereby further increasing the contraction distance during the relative contraction movement of the upper column 32 and the lower column 31.
[0070] Based on the column mechanism 30 in the embodiments of the present application, by designing an avoidance portion 34a on the lower inner plug 34, during the relative contraction movement of the upper column 32 and the lower column 31, the sliding connection portion 332 can pass through the avoidance portion 34a. At this time, the sliding connection portion 332 will not interfere with the lower inner plug 34, enabling the upper column 32 and the lower column 31 to continue to perform relative contraction movement, further increasing the contraction distance when the upper column 32 and the lower column 31 perform relative contraction movement, thereby further reducing the space occupancy rate after the baby crib 1 is disassembled and facilitating the storage of the baby crib 1.
[0071] Further, as Figures 10 - 11 shown, the avoidance portion 34a includes a notch groove 34a1 provided on the side of the lower inner plug 34 facing the sliding connection portion 332. At this time, the avoidance portion 34a includes a notch groove 34a1 (belonging to a virtual structure) formed by the inward extension of the outer wall surface on the side of the lower inner plug 34 facing the sliding connection portion 332. In this way, during the relative contraction movement of the upper column 32 and the lower column 31, the sliding connection portion 332 can pass through the notch groove 34a1, and the sliding connection portion 332 will not interfere with the lower inner plug 34, enabling the upper column 32 and the lower column 31 to continue to perform relative contraction movement, further increasing the contraction distance when the upper column 32 and the lower column 31 perform relative contraction movement, thereby further reducing the space occupancy rate after the baby crib 1 is disassembled and facilitating the storage of the baby crib 1.
[0072] Of course, the avoidance portion 34a can also include two protrusions (belonging to a solid structure, not shown in the figure) connected to the side wall surface on the side of the lower inner plug 34 facing the sliding connection portion 332. The two protrusions are arranged at intervals and are spatially staggered from the sliding connection portion 332. In this way, during the relative contraction movement of the upper column 32 and the lower column 31, the sliding connection portion 332 can pass through the gap between the two protrusions. At this time, the sliding connection portion 332 will also not interfere with the lower inner plug 34, enabling the upper column 32 and the lower column 31 to continue to perform relative contraction movement, further increasing the contraction distance when the upper column 32 and the lower column 31 perform relative contraction movement, thereby further reducing the space occupancy rate after the baby crib 1 is disassembled and facilitating the storage of the baby crib 1.
[0073] Furthermore, it can be understood that the upper column 32 is sleeved on the lower column 31 to form a telescopic structure with the lower column 31. To facilitate the assembly and relative telescopic movement between the upper column 32 and the lower column 31, a certain assembly gap is usually reserved between the upper column 32 and the lower column 31. Due to the existence of this assembly gap, during the relative telescopic movement of the upper column 32 and the lower column 31, the upper column 32 will move a small distance relative to the lower column 31 in a direction deviating from the extension direction of the lower column 31. Conversely, the lower column 31 will also move a small distance relative to the upper column 32 in a direction deviating from the extension direction of the upper column 32. Therefore, to ensure the smoothness of the relative telescopic movement between the upper column 32 and the lower column 31, the size design of the notch groove 34a1 and the sliding part 332, the detailed design of the notch groove 34a1, etc. can be, but are not limited to, one or more of the following embodiments.
[0074] As Figures 10 - 12 shown, in the first embodiment, along the depth direction of the notch groove 34a1, the depth dimension of the notch groove 34a1 is greater than the thickness dimension of the sliding part 332. The specific ratio between the depth dimension of the notch groove 34a1 and the thickness dimension of the sliding part 332 is not limited here. Designers can design according to the specific value of the small distance that the upper column 32 moves relative to the lower column 31 in a direction deviating from the extension direction of the lower column 31. In this way, during the relative telescopic movement of the upper column 32 and the lower column 31, the possibility of the sliding part 332 being tightly pressed against the groove wall surface of the notch groove 34a1 can be effectively reduced, thus ensuring the smoothness of the relative telescopic movement between the upper column 32 and the lower column 31.
[0075] As Figures 10 - 12 shown, in the second embodiment, along the width direction of the notch groove 34a1, the width dimension of the notch groove 34a1 is greater than the width dimension of the sliding part 332. The specific ratio between the width dimension of the notch groove 34a1 and the width dimension of the sliding part 332 is not limited here. Designers can design according to the specific value of the small distance that the upper column 32 moves relative to the lower column 31 in a direction deviating from the extension direction of the lower column 31. In this way, during the relative telescopic movement of the upper column 32 and the lower column 31, the possibility of the sliding part 332 being tightly pressed against the groove wall surface of the notch groove 34a1 can be effectively reduced, thus ensuring the smoothness of the relative telescopic movement between the upper column 32 and the lower column 31.
[0076] As Figure 12As shown, in the third embodiment, the notch groove 34a1 includes a first groove wall surface (not shown in the figure), a second groove wall surface (not shown in the figure), and a third groove wall surface (not shown in the figure); the first groove wall surface is located between the second groove wall surface and the third groove wall surface and faces the sliding connection portion 332, and a chamfer (not shown in the figure) is provided at the connection between the first groove wall surface and at least one of the second groove wall surface and the third groove wall surface. Among them, it can be that only the connection between the first groove wall surface and the second groove wall surface is provided with a chamfer; it can also be that only the connection between the first groove wall surface and the third groove wall surface is provided with a chamfer; it can also be that the connection between the first groove wall surface and the second groove wall surface is provided with a chamfer, and the connection between the first groove wall surface and the third groove wall surface is also provided with a chamfer. By designing the chamfer, a smooth transition between the first groove wall surface and the second groove wall surface and a smooth transition between the first groove wall surface and the third groove wall surface are realized, so that the overall groove wall surface of the notch groove 34a1 is relatively smooth. In this way, during the relative telescopic movement of the upper column 32 and the lower column 31, the possibility of the sliding connection portion 332 tightly abutting against the groove wall surface of the notch groove 34a1 can be effectively reduced, thereby ensuring the smoothness of the relative telescopic movement of the upper column 32 and the lower column 31.
[0077] Furthermore, as Figures 10 - 11 shown, a convex portion 321 is provided on the inner side wall surface of the upper column 32, and a groove 34b corresponding to the convex portion 321 is provided on the side wall surface of the lower inner plug 34; the number of the notch grooves 34a1 is multiple (more than two), and along the width direction of the groove 34b, the multiple notch grooves 34a1 are respectively arranged on both sides of the groove 34b. For example, the number of the notch grooves 34a1 is two, and the number of the sliding connection portions 332 is also two, and the two sliding connection portions 332 are arranged in one-to-one correspondence with the two notch grooves 34a1. In this design, when the upper column 32 and the lower column 31 are assembled, the convex portion 321 is embedded in the groove 34b of the lower inner plug 34, and the convex portion 321 and the groove 34b cooperate with each other to form a blocking structure, which can prevent the upper column 32 from rotating relative to the lower column 31 around the central axis of the lower column 31, so as to enhance the connection stability between the upper column 32 and the lower column 31. By arranging the multiple notch grooves 34a1 on both sides of the groove 34b, the arrangement of the multiple sliding connection portions 332 corresponding to the multiple notch grooves 34a1 on the pull handle body 331 is relatively scattered, so that the smoothness and stability of the relative sliding of the pull handle body 331 relative to the upper column 32 can be ensured.
[0078] Furthermore, as Figure 12As shown, a through groove 331a is provided in the area of the side wall surface of the handle body 331 corresponding to the avoidance portion 34a; the handle 33 further includes a connecting portion 333, the connecting portion 333 is located in the through groove 331a and is connected to the handle body 331 in a cantilever shape; the sliding connection portion 332 is provided at one end of the connecting portion 333 away from the handle body 331. Among them, the handle body 331, the connecting portion 333, and the sliding connection portion 332 can be formed into an integral structure by, but not limited to, injection molding or 3D printing. In this design, the connecting portion 333 is in a cantilever shape and is suitable for generating elastic deformation. The sliding connection portion 332 is arranged on the cantilever-shaped connecting portion 333, so that the sliding connection portion 332 can deflect away from or towards the extending direction of the upper column 32 under the elastic deformation of the connecting portion 333. In this way, during the relative telescopic movement of the upper column 32 and the lower column 31, the possibility of jamming between the sliding connection portion 332 and the avoidance portion 34a can be effectively reduced, thereby ensuring the smoothness of the relative telescopic movement of the upper column 32 and the lower column 31.
[0079] Furthermore, it can be understood that the upper frame 20 can be detachably connected to the upper column 32 directly through its own sub-component structure, or the upper frame 20 can be indirectly detachably connected to the upper column 32 through an intermediate connection structure.
[0080] As Figures 6 - 9 and Figure 13 As shown, when the upper frame 20 is indirectly detachably connected to the upper column 32 through an intermediate connection structure, the column mechanism 30 further includes a connecting frame 35, and the upper frame 20 is detachably connected to the upper column 32 via the connecting frame 35. Among them, the connecting frame 35 serves as an intermediate connection structure between the upper frame 20 and the upper column 32; the specific structure of the connecting frame 35 is not limited here, and the designer can make a reasonable design according to actual needs. For example, the connecting frame 35 can be, but not limited to, a sleeve structure sleeved on the upper frame 20; the specific connection method between the connecting frame 35 and the upper frame 20 is not limited here, and the designer can make a reasonable design according to actual needs. For example, the connecting frame 35 can be detachably connected to the upper frame 20 by, but not limited to, screwing, clamping, or plugging, and for another example, the connecting frame 35 can be non-detachably connected to the upper frame 20 by, but not limited to, gluing.
[0081] When the upper frame 20 is installed on the top of the upper column 32 via the connecting frame 35, the connecting frame 35 is inserted into the upper column 32, and the upper column 32 and the lower column 31 can perform a relative contraction movement until the lower inner plug 34 abuts against the bottom end of the connecting frame 35; wherein, the bottom end of the connecting frame 35 is farther from the top of the upper column 32 than the sliding contact portion 332. That is to say, when the upper frame 20 is installed on the top of the upper column 32 via the connecting frame 35, at this time, when the upper column 32 and the lower column 31 perform a relative contraction movement, the maximum second contraction distance corresponds to the contraction distance generated between the upper column 32 and the lower column 31 when the lower inner plug 34 moves to abut against the bottom end of the connecting frame 35, and this second contraction distance is less than the above-mentioned first contraction distance.
[0082] When the upper frame 20 is disassembled from the top of the upper column 32, the connecting frame 35 extends out of the upper column 32, and the upper column 32 and the lower column 31 can perform a relative contraction movement until the sliding contact portion 332 passes through the avoidance portion 34a. That is to say, when the upper frame 20 is disassembled from the top of the upper column 32, at this time, the sliding contact portion 332 passes through the avoidance portion 34a, and the sliding contact portion 332 will not interfere with the lower inner plug 34, so that the upper column 32 and the lower column 31 can continue to perform a relative contraction movement, so that the maximum third contraction distance when the upper column 32 and the lower column 31 perform a relative contraction movement is greater than the above-mentioned first contraction distance. In this way, the contraction distance when the upper column 32 and the lower column 31 perform a relative contraction movement can be further increased, so as to further reduce the space occupancy rate after the baby crib 1 is disassembled, which is convenient for the storage of the baby crib 1.
[0083] Further, as Figures 10 - 11As shown in the figure, the lower inner plug 34 includes a main body portion 341 and a plug-in portion 342; the main body portion 341 protrudes from the lower column 31 so that the side wall surface of the main body portion 341 is farther from the central axis of the lower column 31 than the side wall surface of the lower column 31, and the avoidance portion 34a is arranged at the edge of the main body portion 341 facing the sliding portion 332; the plug-in portion 342 is arranged on one side of the main body portion 341 and inserted into the lower column 31. The plug-in portion 342 has a plurality of side wall surfaces arranged along the extending direction of the lower column 31, and at least part of the side wall surfaces of the plug-in portion 342 are in contact with the inner side wall surface of the lower column 31. Among them, the main body portion 341 and the plug-in portion 342 can be, but not limited to, formed into an integral structure by injection molding or 3D printing. By designing the main body portion 341 to protrude from the lower column 31 so that the side wall surface of the main body portion 341 is farther from the central axis of the lower column 31 than the side wall surface of the lower column 31, a step structure is formed by spacing the periphery of the main body portion 341 from the periphery of the plug-in portion 342. When the lower inner plug 34 is inserted into the top of the lower column 31, the main body portion 341 protrudes from the top of the lower column 31 and abuts against the lower column 31 downward, so that the relative movement of the lower inner plug 34 relative to the lower column 31 along the axial direction of the lower column 31 can be restricted, thereby enhancing the connection stability between the lower inner plug 34 and the lower column 31; by designing a plurality of side wall surfaces of the plug-in portion 342 arranged along the central axis of the lower column 31 to be at least partially in contact with the inner side wall surface of the lower column 31, the contact area between the lower inner plug 34 and the lower column 31 is increased, and the connection stability between the lower inner plug 34 and the lower column 31 can be further enhanced.
[0084] Further, as Figure 4 , Figure 5 , Figure 10 and Figure 11 shown, the side wall surface of the plug-in portion 342 is provided with a positioning hole 342a, and the side wall surface of the lower column 31 is provided with a through hole 31a corresponding to the positioning hole 342a; the column mechanism 30 further includes a fastener (not shown in the figure), and the fastener passes through the through hole 31a and is connected to the positioning hole 342a to position the lower inner plug 34 on the lower column 31. For example, the positioning hole 342a can be a threaded hole. At this time, the fastener corresponds to a screw, and the screw passes through the through hole 31a and is connected to the threaded hole, so that the relative position between the lower inner plug 34 and the lower column 31 is fixed by screwing the screw. Another example is that the positioning hole 342a can be a jack. At this time, the fastener corresponds to a pin, and the pin passes through the through hole 31a and is inserted into the jack, so that the relative position between the lower inner plug 34 and the lower column 31 is fixed by locking the pin. In this design, by designing the fastener, the fastener passes through the through hole 31a and is connected to the positioning hole 342a, so that the relative position between the lower inner plug 34 and the lower column 31 can be fixed, which is convenient for the installation and disassembly between the lower inner plug 34 and the lower column 31.
[0085] Further, as Figures 14 - 16As shown, the column mechanism 30 further includes a locking and unlocking component 36. The locking and unlocking component 36 is disposed on the upper column 32 and is connected to the handle body 331. The handle body 331 drives the locking and unlocking component 36 to move by sliding relative to the upper column 32, so that the locking and unlocking component 36 switches between a locked state and an unlocked state. In the locked state, the locking and unlocking component 36 is configured to lock the upper column 32 to the lower column 31. In the unlocked state, the locking and unlocking component 36 is configured to unlock the upper column 32 from the lower column 31.
[0086] Among them, the lower column 31 is provided with a plurality of adjustment holes 31b in its own extending direction. The locking and unlocking component 36 includes a driving member 361 and a locking member 362. The driving member 361 is slidably connected in the upper column 32. The locking member 362 is horizontally slidably disposed in the upper column 32 and can be engaged in any one of the adjustment holes 31b. The top of the driving member 361 is fixedly connected to the handle body 331. The bottom of the driving member 361 is located at the locking member 362, and a driving inclined surface 361a for pushing the locking member 362 is provided at the bottom of the driving member 361. When the height of the crib 1 needs to be adjusted, the user pulls up the handle 33. The handle 33 drives the driving member 361 to move upward. The driving inclined surface 361a of the driving member 361 moves upward and pushes the locking member 362, so that the locking member 362 moves away from the upper column 32 to disengage from the adjustment hole 31b. At this time, the locking and unlocking component 36 is in the above-mentioned unlocked state, and the upper column 32 and the lower column 31 can perform relative telescopic movement to adjust the height of the crib 1. After the adjustment is completed, the locking member 362 is re-engaged in another adjustment hole 31b. At this time, the locking and unlocking component 36 is in the above-mentioned locked state, and the upper column 32 and the lower column 31 cannot perform relative telescopic movement to realize the relative fixation of the positions between the upper column 32 and the lower column 31, and the whole operation is convenient. Of course, the locking and unlocking component 36 may further include a spring 363. The two ends of the spring 363 respectively abut against the upper column 32 and the locking member 362 to bias the locking member 362 towards the position where it engages with the adjustment hole 31b.
[0087] By designing the locking and unlocking component 36, the handle body 331 can drive the locking and unlocking component 36 to switch between the locked state and the unlocked state by sliding relative to the upper column 32, so as to realize the relative change and relative fixation of the positions between the upper column 32 and the lower column 31, thereby making the height of the crib 1 adjustable and convenient for users to use.
[0088] Further, as Figure 2As shown, the column mechanism 30 further includes an upper inner plug 37. The upper inner plug 37 is fixed to the bottom of the upper column 32 and is slidably sleeved on the lower column 31. This can reduce the mutual friction when the upper column 32 and the lower column 31 perform relative telescopic movement, making the relative sliding between the two smoother and more stable. Moreover, by the lower inner plug 34 and the upper inner plug 37 abutting against each other and forming interference, it can prevent the upper column 32 and the lower column 31 from separating from each other during the relative sliding process.
[0089] Please refer to Figure 1 As shown, in a second aspect, the present application provides a crib 1, which includes a bottom frame 10, an upper frame 20, and the above-mentioned column mechanism 30. The upper frame 20 is detachably connected to the top of the upper column 32, and the bottom frame 10 is connected to the bottom of the lower column 31.
[0090] Based on the crib 1 in the embodiment of the present application, having the above-mentioned column mechanism 30, the contraction distance when the upper column 32 and the lower column 31 perform relative contraction movement can be further increased, thereby further reducing the space occupancy rate after the crib 1 is disassembled, and facilitating the storage of the crib 1.
[0091] 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. This 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 construed 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.
[0092] The above description is only a preferred embodiment of the present application and is 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. A column mechanism, characterized in that, Applied to a crib, the crib includes a bottom frame and a detachable upper frame; the column mechanism includes: A lower column, the bottom of the lower column is used to connect with the bottom frame; An upper column, the top of the upper column is used to connect with the upper frame, the upper column sleeves the lower column and can make relative telescopic movement with the lower column, and a through groove is provided on the side wall surface of the upper column; A pull handle, including a pull handle body and a sliding connection part, the pull handle body is slidably connected to the upper column, and the sliding connection part is arranged on the pull handle body and at least partially passes through the through groove and extends into the upper column; A lower inner plug, connected to the top of the lower column, the lower inner plug has an avoidance part, and the avoidance part is configured to avoid the sliding connection part during the relative telescopic movement of the upper column and the lower column.
2. The column mechanism according to claim 1, wherein The avoidance part includes a notch groove provided on the side of the lower inner plug facing the sliding connection part.
3. The column mechanism according to claim 2, wherein Along the depth direction of the notch groove, the depth dimension of the notch groove is greater than the thickness dimension of the sliding connection part; and / or Along the width direction of the notch groove, the width dimension of the notch groove is greater than the width dimension of the sliding connection part.
4. The column mechanism according to claim 2, wherein A convex part is provided on the inner side wall surface of the upper column, and a groove corresponding to the convex part is provided on the side wall surface of the lower inner plug; The number of the notch grooves is multiple, and along the width direction of the groove, the multiple notch grooves are respectively arranged on both sides of the groove.
5. The column mechanism according to claim 1, wherein A through groove is provided on the side wall surface of the pull handle body; The pull handle further includes a connecting part, the connecting part is located in the through groove and is connected to the pull handle body in a cantilever shape, and the sliding connection part is arranged at one end of the connecting part away from the pull handle body.
6. The column mechanism according to claim 1, wherein The column mechanism further includes a connecting frame, and the upper frame is detachably connected to the upper column via the connecting frame; When the upper frame is installed on the top of the upper column, the connecting frame is inserted into the upper column, and the upper column and the lower column can make relative contraction movement until the lower inner plug abuts against the bottom end of the connecting frame; wherein, the bottom end of the connecting frame is farther from the top of the upper column than the sliding connection part; When the upper frame is disassembled from the top of the upper column, the connecting frame extends out of the upper column, and the upper column and the lower column can make relative contraction movement until the sliding connection part passes through the avoidance part.
7. The column mechanism according to any one of claims 1-6, characterized in that, The lower inner plug includes: A main body part, protruding from the lower column, so that the side wall surface of the main body part is farther from the central axis of the lower column than the side wall surface of the lower column, and the avoidance part is arranged at the edge of the main body part facing the sliding connection part; A plugging part, arranged on one side of the main body part and inserted into the lower column, the plugging part has a plurality of side wall surfaces arranged around the central axis of the lower column, and at least part of the side wall surfaces of the plugging part are in contact with the inner side wall surface of the lower column.
8. The column mechanism according to claim 7, wherein: a positioning hole is provided on a side wall surface of the insertion part, and a through hole corresponding to the positioning hole is provided on a side wall surface of the lower column; the column mechanism further includes a fastener, and the fastener passes through the through hole and is connected to the positioning hole to position the lower inner plug on the lower column.
9. The column mechanism according to any one of claims 1-6, wherein: the column mechanism further includes a locking and unlocking assembly, the locking and unlocking assembly is arranged on the upper column, and the locking and unlocking assembly is connected to the handle body; the handle body drives the locking and unlocking assembly to move by sliding relative to the upper column, so that the locking and unlocking assembly switches between a locked state and an unlocked state; wherein, in the locked state, the locking and unlocking assembly is configured to lock the upper column to the lower column; in the unlocked state, the locking and unlocking assembly is configured to unlock the upper column from the lower column.
10. A cot, characterized in that, Comprising: the column mechanism according to any one of claims 1-9; the upper frame, detachably connected to the top of the upper column; the chassis, connected to the bottom of the lower column.