A bed leg assembly and a baby crib

Abstract

The application provides a bed leg assembly and a baby crib. The bed leg assembly is applied to the baby crib and comprises a bottom corner and a stand. The bottom corner comprises a foot base and a pivoting arm. The pivoting arm is arranged on the outer wall of the foot base and is used for being hinged to the bottom pipe of the bottom base assembly in the baby crib. The foot base is provided with a groove. The inner wall of the groove has a protruding part corresponding to the outer wall and protruding in the direction away from the pivoting arm. The protruding part has a contact surface. The bottom end of the stand is inserted into the groove and has a close-fitting part. The surface of the close-fitting part is closely fitted with the contact surface. The application can solve the problem that the bottom corner of the baby crib is easily damaged due to abrasion.

Description

Technical Field

[0001] This application relates to the field of child care equipment technology, and in particular to a bed leg assembly and a crib. Background Technology

[0002] Currently, cribs typically consist of an upper frame, a lower frame, and uprights connecting the upper and lower frames.

[0003] In related technologies, to facilitate the movement and carrying of cribs, the lower frame of the crib is usually designed as a base assembly with a foldable structure. Specifically, the base assembly includes a base and multiple base tubes. One end of the multiple base tubes is hinged to the base in a radial manner, and the other end is hinged to each upright post through bottom corners. The base has a release device that allows the crib to switch between a folded state and an unfolded state.

[0004] When the crib is unfolded, the weight acting on the uprights is concentrated on the inner side of the bottom end of the uprights near the bottom tube. Therefore, after prolonged use, the bottom corners connected to the uprights are prone to wear and damage. Summary of the Invention

[0005] This application provides a bed leg assembly and a crib that can solve the problem that the bottom corners of the crib are easily damaged due to wear and tear.

[0006] In a first aspect, this application provides a bed leg assembly for use in a crib, comprising:

[0007] The base corner includes a footrest and a pivot arm. The pivot arm is disposed on the outer wall of the footrest and is used for hinged connection to the bottom tube of the base assembly in the crib. The footrest has a groove, and the inner wall of the groove has a protrusion corresponding to the outer wall and protruding in a direction away from the pivot arm. The protrusion has a contact surface.

[0008] A column, the bottom end of which is inserted into the groove and has a fitting portion; the surface of the fitting portion is in close contact with the contact surface.

[0009] This application increases the surface area of ​​the groove near the bottom tube by creating a contact surface through a protrusion on the inner wall of the footrest groove. This reduces the pressure between the bottom end of the upright near the inner side of the bottom tube and the inner wall of the groove, effectively preventing damage to the upright and footrest due to wear. Therefore, this solution effectively addresses the problem of easy wear and tear on the bottom corners of a crib during prolonged use.

[0010] In conjunction with the first aspect, in order to further reduce the possibility of wear and damage at the bottom corner, in some possible implementations, the contact surface includes a first arc surface and a second arc surface located on both sides of the protrusion;

[0011] The bonding portion includes a first bonding surface and a second bonding surface corresponding to the first arc surface and the second arc surface; the surfaces of the first bonding surface and the second bonding surface are tightly bonded to the first arc surface and the second arc surface, respectively, and the included angle between the plane where the first bonding surface is located and the plane where the second bonding surface is located is greater than 90 degrees and less than 180 degrees.

[0012] In combination with the first aspect and the above implementation method, in order to prevent the limiting protrusion on the inner wall of the groove from being cut off at the bottom of the column, which would cause the locking connection between the limiting protrusion and the limiting hole to fail, in some possible implementation methods, the inner wall of the groove is provided with a set of limiting protrusions, and the outer periphery of the bottom end of the column is provided with a set of limiting holes.

[0013] The column has a guide slope on its outer periphery. The guide slope is located below each of the limiting holes and extends to the bottom edge of the column. The lateral width of the guide slope is greater than the lateral width of the limiting protrusion.

[0014] In combination with the first aspect and the above implementation method, in order to further improve the tightness of the connection between the column and the bottom corner, in some possible implementation methods, the inner wall of the groove is also provided with a support protrusion located below the limiting protrusion, and the support protrusion has an abutment surface for abutting against the guide slope.

[0015] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the column is a hollow tube, the hollow tube includes an arc-shaped tube wall, an intermediate tube wall and an adhesive tube wall having the fitting portion; the two sides of the arc-shaped tube wall are respectively connected to the adhesive tube wall through the intermediate tube wall; and / or the hollow tube has a gap extending along the axial direction of the hollow tube on the tube wall corresponding to the pivot arm.

[0016] In combination with the first aspect and the above implementation method, in order to quickly align the bottom end of the column with the groove of the foot, in some possible implementation methods, the bottom wall of the groove is provided with a set of recesses;

[0017] The edge of the fitting tube wall near the gap is formed with an inwardly rolled edge in a direction away from the first fitting surface and the second fitting surface;

[0018] The end of the rolled edge near the groove is inserted into and connected to the recessed portion.

[0019] In combination with the first aspect and the above implementation methods, in some possible implementation methods, the limiting hole and the guide inclined surface are disposed on the intermediate tube wall, and the included angle formed between the intermediate tube wall and the fitting tube wall is an obtuse angle;

[0020] The top outer periphery of the column is also provided with a connection hole for engaging with the top corner of the crib, and the connection hole is located on the arc-shaped tube wall.

[0021] In combination with the first aspect and the above-described implementation, in some possible implementations, the pivot arm is provided with a U-shaped groove for overlapping the bottom tube;

[0022] The opposite side walls of the U-shaped groove are provided with pin holes to allow the pivot arm to be hinged to the bottom tube via a pin.

[0023] Secondly, this application also provides a crib, comprising:

[0024] Bed leg assembly as described in any of the first aspects above;

[0025] The base assembly includes a base and a plurality of base tubes, one end of which is radially hinged to the base and the other end of which is hinged to a pivot arm at the bottom corner of the bed leg assembly.

[0026] In conjunction with the second aspect, to increase the overall stability of the crib in its unfolded state, some possible implementations may also include:

[0027] Multiple reinforcing rod groups, one of the reinforcing rod groups connecting two adjacent bottom tubes, and each bottom tube being connected to only one of the reinforcing rod groups;

[0028] The reinforcing rod assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the first connecting rod is hinged to one of the two adjacent bottom tubes. The other end of the second connecting rod is hinged to the other of the two adjacent bottom tubes. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the frame structure of a crib provided in an embodiment of this application;

[0030] Figure 2 yes Figure 1 A structural diagram of the crib leg assembly in a crib frame;

[0031] Figure 3 yes Figure 2 A schematic diagram of the bottom corner structure of the bed leg assembly;

[0032] Figure 4 yes Figure 2 A cross-sectional view of the bottom corner of the bed leg assembly;

[0033] Figure 5 yes Figure 2 Schematic diagram of the uprights in the bed leg assembly;

[0034] Figure 6 yes Figure 5 Enlarged structural diagram of section I in the column;

[0035] Figure 7 yes Figure 5 Enlarged structural diagram of part II in the column;

[0036] Figure 8 yes Figure 5 A bottom view of the column.

[0037] The annotations in the attached figures are explained as follows:

[0038] 1—Bed leg assembly;

[0039] 11—Base angle;

[0040] 111—foot base;

[0041] 1111—Groove;

[0042] 1112—Protrusion; 1114—Contact surface; 1115—First arc surface; 1116—Second arc surface;

[0043] 1113—Limiting protrusion;

[0044] 1117—Depression;

[0045] 112—Pivot arm; 1121—U-groove; 1122—Pin hole;

[0046] 12—Columns;

[0047] 121—Arc-shaped pipe wall; 1211—Connecting hole;

[0048] 122—Intermediate tube wall; 1221—Limiting hole; 1222—Guide slope;

[0049] 123—fitting to the pipe wall; 1231—fitting part; 1232—first fitting surface; 1233—second fitting surface; 1234—rolled edge;

[0050] 124—Gap;

[0051] 2—Base assembly; 21—Base; 22—Base tube;

[0052] 3—Upper frame; 31—Top corner; 32—Handrail;

[0053] 4—Strengthening rod assembly; 41—First connecting rod; 42—Second connecting rod. Detailed Implementation

[0054] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0055] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0056] This application provides a bed leg assembly and a crib. The following is in conjunction with... Figures 1 to 5 The specific structure of the crib and its legs is described in detail.

[0057] Please see Figures 1 to 3 This application proposes a crib that includes an upper frame 3, a base assembly 2, and a leg assembly 1.

[0058] The bed leg assembly 1 includes a base corner 11 and a post 12. The base corner 11 includes a foot seat 111 and a pivot arm 112 connected to the foot seat 111. The foot seat 111 is provided with a groove 1111, and the bottom end of the post 12 is inserted into the groove 1111.

[0059] The base assembly 2 includes a base 21 and a plurality of base tubes 22, one end of which is radially hinged to the base 21, and the other end of which is hinged to the pivot arm 112 of the base corner 11 in the bed leg assembly 1. In one possible implementation, see [reference needed]. Figure 3 The pivot arm 112 is provided with a U-shaped groove 1121 for connecting to the base tube 22; the opposite side walls of the U-shaped groove 1121 are provided with pin holes 1122, and the pivot arm 112 is hinged to the base tube 22 by a pin. The base 21 has a release device, which can realize the switching between the folded state and the unfolded state of the crib, thereby facilitating the movement and carrying of the crib. There are various structures for the release device. Since the release device is not the inventive point of this application, in practical applications, the release device can adopt a variety of existing locking and unlocking structures, so this application will not elaborate on it.

[0060] The upper frame 3 includes a top corner 31 located at the four corners and a handrail 32 pivotally connected to the top corner 31. The handrail 32 and the upright 12 are securely fixed by being connected through the top corner 31.

[0061] When the crib is unfolded, the weight acting on the uprights 12 is concentrated on the inner side of the bottom end of the uprights 12 near the bottom tube 22. Therefore, after prolonged use, the bottom corner 11 connected to the uprights 12 is prone to wear and damage.

[0062] To address the aforementioned technical problems, the crib provided in this application features a targeted design for the crib leg assembly 1. Specifically, see [link to relevant documentation]. Figure 2 and Figure 3 The pivot arm 112 of the bottom corner 11 is provided on the outer wall of the foot seat 111; the inner wall of the groove 1111 of the foot seat 111 has a protrusion 1112 corresponding to the outer wall and protruding in a direction away from the pivot arm 112; the protrusion 1112 has a contact surface 1114; the bottom end of the column 12 has a fitting part 1231; the surface of the fitting part 1231 is in close contact with the contact surface 1114. This solution increases the surface area of ​​the inner wall of the groove 1111 near the bottom tube 22 by providing the contact surface 1114 formed by the protrusion 1112 on the inner wall of the groove 1111 of the foot seat 111, which can reduce the pressure between the bottom end of the column 12 near the inner side of the bottom tube 22 and the inner wall of the groove 1111, thereby effectively avoiding damage to the column 12 and the foot seat 111 due to wear. It can be seen that this solution can solve the problem that the bottom corner 11 of the crib is easily damaged by wear during long-term use.

[0063] It should be noted that the protrusion 1112 can be manufactured by injection molding, stamping, or other methods. Therefore, the surface shape of the protrusion 1112 can be varied, such as curved surfaces, inclined surfaces, or irregular surfaces. Figures 3 to 7 As shown, in some embodiments of this application, the contact surface 1114 includes a first arc surface 1115 and a second arc surface 1116 located on both sides of the protrusion 1112; correspondingly, the fitting portion 1231 includes a first fitting surface 1232 and a second fitting surface 1233 corresponding to the first arc surface 1115 and the second arc surface 1116; the surfaces of the first fitting surface 1232 and the second fitting surface 1233 are respectively in close contact with the first arc surface 1115 and the second arc surface 1116, and the angle between the plane where the first fitting surface 1232 is located and the plane where the second fitting surface 1233 is located is greater than 90 degrees and less than 180 degrees, for example, it can be 100 degrees, 110 degrees, 120 degrees, 140 degrees, 160 degrees, etc. This design can form multiple contact surfaces, thereby increasing the force-bearing area on the inner side of the bottom end of the column 12, effectively dispersing the pressure concentrated on the inner side of the bottom end of the column 12 near the bottom tube 22, and reducing the possibility of wear and damage to the bottom corner 11. It is understood that the number of protrusions 1112 can be one, two, three, etc., and the shape and size of the protrusions 1112 can also be flexibly designed according to factors such as space size and strength requirements. This application embodiment does not make specific limitations in this regard.

[0064] To enhance the connection between the upright 12 and the bottom corner 11, in addition to the plug-in connection, a snap-fit ​​connection is also added. Specifically, one of the inner wall of the groove 1111 and the outer periphery of the bottom end of the upright 12 is provided with a limiting protrusion 1113, and the other is provided with a limiting groove or limiting hole 1221. The limiting protrusion 1113 snaps into the limiting groove or limiting hole 1221. More specifically, the inner wall of the groove 1111 is provided with a limiting groove or limiting hole, and the outer periphery of the bottom end of the upright 12 is provided with a limiting protrusion, which snaps into the limiting groove or limiting hole. Alternatively, see [link to other documentation]. Figure 3 and Figure 6 A limiting protrusion 1113 is provided on the inner wall of the groove 1111, and a limiting hole 1221 or a limiting groove is provided on the outer periphery of the bottom end of the column 12. The limiting protrusion 1113 is engaged with the limiting hole 1221 or the limiting groove. In this way, by adding the limiting protrusion 1113 and engaging with the limiting groove or the limiting hole 1221, the connection between the column 12 and the bottom corner 11 can be further improved.

[0065] like Figure 3 and Figure 6 As shown, when the inner wall of the groove 1111 is provided with a set of limiting protrusions 1113 and the bottom outer periphery of the column 12 is provided with a set of limiting holes 1221, this embodiment of the application provides a guide slope 1222 on the outer periphery of the column 12. The guide slope 1222 is located below each limiting hole 1221 and extends to the bottom edge of the column 12, and the lateral width of the guide slope 1222 is greater than the lateral width of the limiting protrusions 1113. Here, the lateral width refers to the width of the crib in the horizontal direction when it is in normal use. With this setting, the guide slope 1222 can guide the column 12 to be smoothly inserted into the groove 1111 of the bottom corner 11. On the one hand, it reduces the obstruction of the bottom end of the column 12 by the limiting protrusions 1113 on the inner wall of the groove 1111, and on the other hand, it can prevent the bottom end of the column 12 from cutting off the limiting protrusions 1113 on the inner wall of the groove 1111, causing the locking connection between the limiting protrusions 1113 and the limiting holes 1221 to fail. Furthermore, to improve the connection stability between the bottom end of the column 12 of the guide slope 1222 and the bottom wall of the groove 1111, in some embodiments of this application, the inner wall of the groove 1111 is also provided with a support protrusion (not shown) located below the limiting protrusion 1113. The support protrusion has an abutment surface for abutting against the guide slope 1222. In this way, the support protrusion can fill the gap between the guide slope 1222 and the inner wall of the groove 1111, making the connection between the column 12 and the bottom corner 11 tighter.

[0066] It is understandable that column 12 can be a solid column or a hollow tube. See also Figures 4 to 8When the column 12 is a hollow tube, it may include an arc-shaped tube wall 121, an intermediate tube wall 122, and an adhesive tube wall 123 with an adhesive portion 1231; the two sides of the arc-shaped tube wall 121 are respectively connected to the adhesive tube wall 123 through the intermediate tube wall 122. See also... Figure 4 The hollow tube fitting, corresponding to the pivot arm 112, may also have a slit 124 extending axially along the hollow tube fitting wall. This slit 124 can be used to install a crib cover. See also Figure 6 The limiting hole 1221 and guide slope 1222 on the outer periphery of the column 12 can be specifically set in the intermediate tube wall 122. The included angle formed between the intermediate tube wall 122 and the fitting tube wall 123 is an obtuse angle, such as 95 degrees, 100 degrees, 110 degrees, 120 degrees, 140 degrees, 160 degrees, 170 degrees, etc. This can also increase the stress-bearing area on the inner side of the bottom end of the column 12, effectively dispersing the pressure concentrated on the inner side of the bottom end of the column 12 near the bottom tube 22. See Figure 3 and Figure 8 The bottom wall of the groove 1111 is provided with a set of recesses 1117; the edge of the fitting tube wall 123 near the gap 124 is formed with a rolled edge 1234 that is turned inward in a direction away from the first fitting surface 1232 and the second fitting surface 1233; the end of the rolled edge 1234 near the groove 1111 is inserted and connected to the recesses 1117. It can be understood that by connecting the rolled edge 1234 to the recesses 1117, the bottom end of the upright 12 and the groove 1111 of the foot 111 can be quickly aligned, and the bottom end of the upright 12 can be prevented from swinging in the groove 1111. In addition, the outer periphery of the top end of the upright 12 can also be provided with a connecting hole 1211 for engaging with the top corner 31 of the crib; specifically, see Figure 2 and Figure 6 The connection hole 1211 can be set on the arc-shaped pipe wall 121.

[0067] Finally, please see Figure 1 To increase the overall stability of the crib when it is unfolded, in some embodiments of this application, the crib also includes multiple reinforcing rod assemblies 4. Each reinforcing rod assembly 4 connects two adjacent bottom tubes 22, and each bottom tube 22 is connected to only one reinforcing rod assembly 4. Each reinforcing rod assembly 4 includes a first connecting rod 41 and a second connecting rod 42. One end of the first connecting rod 41 is hinged to one end of the second connecting rod 42, and the other end of the first connecting rod 41 is hinged to one of the two adjacent bottom tubes 22. The other end of the second connecting rod 42 is hinged to the other of the two adjacent bottom tubes 22. The number of reinforcing rod assemblies 4 is not specifically limited in the embodiments of this application; the reinforcing rod assemblies 4 can be configured according to the number of bottom tubes 22. For example, when the number of bottom tubes 22 is as follows... Figure 1When four rods are shown, the reinforcing rod group 4 can be one or two. When there are six base tubes 22, the reinforcing rod group 4 can be one, two, three, etc. In this embodiment, by setting two connecting rods that are hinged to each other and connecting them to two adjacent base tubes 22, the rigidity of the base assembly 2 can be effectively improved when the crib is in the unfolded state, thereby improving the stability of the entire crib.

[0068] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0069] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A bed leg assembly (1) for use in a crib, characterized in that, include: The base (11) includes a foot (111) and a pivot arm (112). The pivot arm (112) is disposed on the outer wall of the foot (111) and is hinged to the bottom tube (22) of the base assembly (2) in the crib. The foot (111) has a groove (1111). The inner wall of the groove (1111) has a protrusion (1112) corresponding to the outer wall and protruding in a direction away from the pivot arm (112). The protrusion (1112) has a contact surface (1114). The contact surface (1114) includes a first arc surface (1115) and a second arc surface (1116) located on both sides of the protrusion (1112). The first arc surface (1115) and the second arc surface (1116) protrude outward to both sides of the protrusion (1112). A column (12) is inserted into the groove (1111) at its bottom end and has a fitting part (1231). The fitting part (1231) includes a first fitting surface (1232) and a second fitting surface (1233) corresponding to the first arc surface (1115) and the second arc surface (1116). The first fitting surface (1232) and the second fitting surface (1233) are both planes. The included angle between the first fitting surface (1232) and the second fitting surface (1233) is greater than 90 degrees and less than 180 degrees. The first mating surface (1232) and the second mating surface (1233) are tightly mated to the first arc surface (1115) and the second arc surface (1116) respectively in a direction away from the pivot arm (112); The inner wall of the groove (1111) is provided with a set of limiting protrusions (1113), and the bottom outer periphery of the column (12) is provided with a set of limiting holes (1221). The column (12) is provided with a guide slope (1222) on its outer periphery. The guide slope (1222) is located below each of the limiting holes (1221) and extends to the bottom edge of the column (12). The inner wall of the groove (1111) is also provided with a support protrusion located below the limiting protrusion (1113). The support protrusion has an abutment surface for abutting against the guide slope (1222).

2. The bed leg assembly (1) as described in claim 1, characterized in that, The lateral width of the guide ramp (1222) is greater than the lateral width of the limiting protrusion (1113).

3. The bed leg assembly (1) as described in claim 2, characterized in that, The column (12) is a hollow tube, which includes an arc-shaped tube wall (121), a middle tube wall (122), and a fitting tube wall (123) having the fitting part (1231); the two sides of the arc-shaped tube wall (121) are respectively connected to the fitting tube wall (123) through the middle tube wall (122); The hollow tube has a slit (124) extending axially along the tube wall corresponding to the pivot arm (112).

4. The bed leg assembly (1) as described in claim 3, characterized in that, The bottom wall of the groove (1111) is provided with a set of recesses (1117). The edge of the fitting tube wall (123) near the gap (124) is formed with an inwardly rolled edge (1234) in a direction away from the first fitting surface (1232) and the second fitting surface (1233). The end of the rolled edge (1234) near the groove (1111) is connected to the recess (1117) by insertion.

5. The bed leg assembly (1) as described in claim 3, characterized in that, The limiting hole (1221) and the guide slope (1222) are disposed on the intermediate tube wall (122), and the included angle formed between the intermediate tube wall (122) and the fitting tube wall (123) is an obtuse angle; The top outer periphery of the column (12) is also provided with a connection hole (1211) for engaging with the top corner (31) of the crib, and the connection hole (1211) is provided on the arc-shaped tube wall (121).

6. The bed leg assembly (1) as described in claim 1, characterized in that, The pivot arm (112) is provided with a U-shaped groove (1121) for overlapping the bottom tube (22). The U-shaped groove (1121) has pin holes (1122) on its opposite side walls so that the pivot arm (112) can be hinged to the bottom tube (22) by means of a pin.

7. A crib, characterized in that, include: Bed leg assembly (1) as described in any one of claims 1 to 6; The base assembly (2) includes a base (21) and a plurality of bottom tubes (22), one end of which is radially hinged to the base (21) and the other end of which is hinged to the pivot arm (112) of the bottom corner (11) of the bed leg assembly (1).

8. The crib as described in claim 7, characterized in that, Also includes: Multiple reinforcing rod groups (4), one of the reinforcing rod groups (4) connects two adjacent bottom tubes (22), and one bottom tube (22) is connected to only one of the reinforcing rod groups (4); The reinforcing rod assembly (4) includes a first connecting rod (41) and a second connecting rod (42). One end of the first connecting rod (41) is hinged to one end of the second connecting rod (42), and the other end of the first connecting rod (41) is hinged to one of the two adjacent bottom tubes (22). The other end of the second connecting rod (42) is hinged to the other of the two adjacent bottom tubes (22).

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