Foldable frame

Abstract

The utility model belongs to the technical field of diaper tables, and discloses a foldable frame which is characterized in that two connecting pieces are oppositely arranged on an annular frame, two supporting assemblies are correspondingly installed on the two connecting pieces respectively, each supporting assembly comprises a first rotating piece and a second rotating piece which are arranged on one side of the corresponding connecting piece in a spaced mode, and each first rotating piece is rotationally connected to the corresponding connecting piece; a first gear groove is formed in the side, close to the connecting piece, of the first rotating piece, a locking gear is embedded in the first gear groove, a second gear groove is correspondingly formed in the connecting piece, the locking gear is embedded in the first gear groove or the second gear groove, and a first spring is arranged between the groove bottom of the first gear groove and the locking gear. The first spring is used for pushing the locking gear to be embedded in the second gear groove, the two handles are slidably connected to the other sides of the two connecting pieces correspondingly, the handles are used for pushing the locking gear to be embedded in the first gear groove, operation is convenient and fast, and rapid switching between the folding state and the unfolding state can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaper changing tables, in particular to a foldable frame. Background Art

[0002] A diapering table, also known as a changing table or baby care table, is a piece of furniture designed specifically for infants and young children. It's primarily used for changing diapers and performing simple cleaning and care tasks. These tables are typically designed with safety and convenience in mind. They feature railings to prevent babies from rolling off the table, a soft cushioned surface for both skin protection and comfort, and drawers or shelves for storing essential items like diapers and wipes. Some high-end diapering tables are designed to fold, making them lightweight and portable, making them suitable for on-the-go use.

[0003] The basic structure of the foldable diaper changing table is a folding frame. However, the existing folding frame is inconvenient to use and is slow to switch between the folded state and the unfolded state. Therefore, there is an urgent need to design a foldable frame structure that is easy to operate and can be switched quickly. Utility Model Content

[0004] The purpose of the utility model is to provide a foldable frame with a stable structure, convenient operation, and the ability to quickly switch between a folded state and an unfolded state.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A foldable frame comprising:

[0007] Ring frame;

[0008] Connecting piece, two of the connecting pieces are provided, and the two connecting pieces are arranged opposite to the annular frame;

[0009] The supporting assembly is provided with two supporting assemblies, and the two supporting assemblies are respectively installed on the two connecting members, and the supporting assembly includes a first rotating member and a second rotating member arranged at intervals on one side of the connecting member, the first rotating member is rotatably connected to the connecting member, and the second rotating member is limited to the rotation of the connecting member, a first gear groove is provided on the side of the first rotating member close to the connecting member, a locking gear is embedded in the first gear groove, and a second gear groove is correspondingly provided on the connecting member, the locking gear is embedded in the first gear groove or the second gear groove, a first spring is provided between the bottom of the first gear groove and the locking gear, and the first spring is used to push the locking gear to be embedded in the second gear groove;

[0010] A handle, wherein two handles are provided, and the two handles are respectively slidably connected to the other side of the two connecting members, and the handle is used to push the locking gear to be embedded in the first gear groove.

[0011] Preferably, a locking block is provided on the side of the handle close to its corresponding connecting piece, and a locking groove is provided on the side of the locking gear close to its corresponding connecting piece, the locking block can pass through the connecting piece and extend into the locking groove, the outer wall of the locking block fits into the groove wall of the locking groove, the top of the locking block is an inclined surface, and the height of the locking block gradually increases from close to the locking gear to away from the locking gear, and an abutment block is also provided on the side of the handle close to its corresponding connecting piece, and a first elongated groove is provided on the corresponding connecting piece in the vertical direction, the abutment block extends into the first elongated groove, and a second spring is provided between the top of the abutment block and the first elongated groove, and the second spring is used to push the handle downward.

[0012] Preferably, the groove depth of the first gear groove is greater than the thickness of the locking gear.

[0013] Preferably, a second elongated groove is provided on the connecting member in the vertical direction, the locking block extends into the locking groove through the second elongated groove, and both sides of the connecting member in the width direction respectively abut against two groove walls of the second elongated groove.

[0014] Preferably, a limiting protrusion is provided on one side of the second rotating member close to the connecting member, and a limiting groove is provided on the connecting member. The limiting protrusion is limited in rotation in the limiting groove, and when the foldable frame is in the folded state, one side of the limiting protrusion is limited on one side of the limiting groove, and when the foldable frame is in the unfolded state, the other side of the limiting protrusion is limited on the other side of the limiting groove.

[0015] Preferably, the connecting member includes a first sleeve portion, a second sleeve portion and a connecting portion, the first sleeve portion and the second sleeve portion are respectively connected to both sides of the connecting portion, the annular frame is inserted into the first sleeve portion and the second sleeve portion, and the support assembly and the handle are both installed on the connecting portion.

[0016] Preferably, the support assembly further includes a first support leg and a second support leg, and the first support leg and the second support leg are respectively connected to the first rotating member and the second rotating member.

[0017] Preferably, a mounting post is provided at the bottom of the first gear slot, the first spring is sleeved on the mounting post, and the locking gear can compress the first spring and be sleeved on the mounting post.

[0018] Preferably, a guide block is provided on one side of the handle close to the corresponding connecting piece, and a guide hole is provided on the corresponding connecting piece in the vertical direction. The cross-sectional shape of the guide hole is rectangular, and both sides of the guide block in the width direction are fitted into the guide hole.

[0019] Preferably, a hand-grip portion is provided on the side of the handle facing away from the corresponding connecting piece.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a foldable frame, including an annular frame, a connecting member, a supporting assembly and a handle, the two connecting members are arranged relative to the annular frame, and the two supporting assemblies are respectively installed on the two connecting members, the supporting assembly includes a first rotating member and a second rotating member arranged at intervals on one side of the connecting member, the first rotating member is rotatably connected to the connecting member, and the second rotating member is limited in rotation to the connecting member, a first gear groove is provided on a side of the first rotating member close to the connecting member, a locking gear is embedded in the first gear groove, and a second gear groove is correspondingly provided on the connecting member, the locking gear is embedded in the first gear groove or the second gear groove, a first spring is provided between the groove bottom of the first gear groove and the locking gear, the first spring is used to push the locking gear embedded in the second gear groove, the two handles are respectively slidably connected to the other side of the two connecting members, and the handles are used to push the locking gear embedded in the first gear groove. The structure is stable, the operation is convenient, and it can quickly switch between the folded state and the unfolded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a foldable frame provided by an embodiment of the present utility model;

[0023] Figure 2 This is a partial structural diagram of a foldable frame provided by an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the connector provided by the embodiment of the utility model Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the structure of the connector provided by the embodiment of the utility model Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the combination of the first rotating member and the locking gear provided in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic structural diagram of a second rotating member provided in an embodiment of the present utility model;

[0028] Figure 7 The structure diagram of the handle provided in the embodiment of the utility model Figure 1 ;

[0029] Figure 8 The structure diagram of the handle provided in the embodiment of the utility model Figure 2 .

[0030] In the picture:

[0031] 1. Annular frame; 1. First half ring; 12. Second half ring; 2. Connecting member; 21. First sleeve portion; 22. Second sleeve portion; 23. Connecting member; 231. Second gear groove; 232. Limiting groove; 233. First elongated groove; 234. Second elongated groove; 235. Guide hole; 31. First rotating member; 311. First gear groove; 32. Second rotating member; 321. Limiting protrusion; 33. Locking gear; 331. Locking groove; 34. First supporting leg; 35. Second supporting leg; 4. Handle; 41. Handhold; 42. Locking block; 43. Abutting block; 44. Guide block. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0033] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0036] This embodiment provides a foldable frame, which is applied to a baby diaper changing table or other foldable carts and is easy to fold.

[0037] See also Figures 1-8 The foldable frame includes a ring frame 1, a connector 2, a support assembly and a handle 4. The ring frame 1, the support assembly and the handle 4 are all connected to the support assembly. The ring frame 1 is used to hang cloth, the support assembly is used to stabilize the whole on the ground, and the handle 4 is used to control the support assembly to unfold or fold the foldable frame.

[0038] Optionally, see Figure 1 The annular frame 1 includes a first half ring 1 and a second half ring 12. The first half ring 1 and the second half ring 12 are connected by two connecting members 2 to form a closed ring, and the two connecting members 2 are arranged opposite to each other.

[0039] For example, see Figure 1-Figure 4 The connecting member 2 includes a first sleeve portion 21, a second sleeve portion 22 and a connecting portion 23, wherein the first sleeve portion 21 and the second sleeve portion 22 are respectively connected to both sides of the connecting portion 23, the two free ends of the first half ring 1 are respectively inserted into the two first sleeve portions 21, and the two free ends of the second half ring 12 are respectively inserted into the two second sleeve portions 22, the support assembly is installed on one side of the connecting portion 23, and the handle 4 is installed on the other side of the connecting portion 23.

[0040] The foldable frame provided in this embodiment is manually operated with a handle 4 to control the support assembly to unfold or fold the foldable frame.

[0041] Preferably, see Figure 8 The handle 4 is provided with a grip portion 41 on the side facing away from the corresponding connector 2. The grip portion 41 protrudes from the other parts of the connector 2 to facilitate manual operation. Further preferably, a recessed portion is provided on the side of the connector 2 near the handle 4. The handle 4 is disposed in the recessed portion, and the grip portion 41 of the handle 4 is accommodated in the recessed portion to prevent accidental touch.

[0042] See also Figure 1-Figure 4 There are two support assemblies, which are respectively installed on the two connecting members 2, specifically, on one side of the connecting portion 23 to support both sides of the overall structure.

[0043] The support assembly includes a first rotating member 31 and a second rotating member 32. The first rotating member 31 and the second rotating member 32 are spaced apart, and the top of the first rotating member 31 and the top of the second rotating member 32 are both rotatably connected to the connecting portion 23. Optionally, the first rotating member 31 and the second rotating member 32 are each rotatably connected to the connecting portion 23 via a rotating shaft.

[0044] Furthermore, a first gear groove 311 is provided on a side of the first rotating member 31 close to the connecting portion 23, a locking gear 33 is embedded in the first gear groove 311, and a second gear groove 231 is provided on the connecting member 2 corresponding to the locking gear 33. Specifically, the second gear groove 231 is provided on the connecting portion 23, the second gear groove 231 is coaxially provided with the first gear groove 311, and a first spring (not shown in the figure) is provided between the bottom of the first gear groove 311 and the locking gear 33, and the first spring is always in a compressed state.

[0045] Through the above-mentioned structural setting, the first rotating member 31 has a locked state and an unlocked state. When the first rotating member 31 is in the locked state, the first spring pushes the locking gear 33 to be embedded in the second gear groove 231, thereby realizing that the first rotating member 31 is clamped on the connecting portion 23, limiting the rotation of the first rotating member 31, and thus providing stable support; when the first rotating member 31 is in the unlocked state, the locking gear 33 squeezes the first spring and is embedded in the first gear groove 311, the first rotating member 31 disengages from the connecting portion 23, and rotates the first rotating member 31 to make it close to the second rotating member 32, thereby completing the folding.

[0046] It should be noted that the depth of the first gear groove 311 is greater than the thickness of the locking gear 33, and the locking gear 33 can be completely embedded in the first gear groove 311, which ensures that the first rotating member 31 can be separated from the connecting part 23 and switch the first rotating member 31 to the unlocked state.

[0047] Since the locking gear 33 is easily offset when moving between the first gear groove 311 and the second gear groove 231, the locking gear 33 cannot be smoothly inserted into the first gear groove 311. Therefore, in this embodiment, a mounting post is provided at the bottom of the first gear groove 311, and the first spring is mounted on the mounting post. The locking gear 33 can compress the first spring and be mounted on the mounting post.

[0048] Furthermore, the second rotating member 32 is rotationally limited to the connecting member 2 and has a fixed rotation range.

[0049] For example, see Figure 3-Figure 6When the foldable frame is in the unfolded state, the one side of the limiting protrusion 321 is limited to one side of the limiting groove 232, and the first rotating member 31 is in a locked state, thereby ensuring that the angle formed between the first rotating member 31 and the second rotating member 32 is fixed, ensuring stable support for the overall structure. When the foldable frame is in the folded state, the other side of the limiting protrusion 321 is limited to the other side of the limiting groove 232, and the first rotating member 31 is in an unlocked state, thereby controlling the first rotating member 31 to rotate parallel to the second rotating member 32 to complete the folding of the foldable frame.

[0050] Preferably, in this embodiment, when the foldable frame is in the folded state, one side of the limiting protrusion 321 is limited to one side of the limiting groove 232, and at this time the long rod portion of the second rotating member 32 is parallel to the annular frame 1, further reducing the volume and the floor space.

[0051] In this embodiment, the support assembly further includes a first support leg 34 and a second support leg 35, which are respectively connected to the first rotating member 31 and the second rotating member 32. For example, the first rotating member 31 and the second rotating member 32 each have a long rod portion, and the long rod portion of the first rotating member 31 and the long rod portion of the second rotating member 32 are both cylindrical. The first support leg 34 and the second support leg 35 are respectively inserted into the long rod portion of the first rotating member 31 and the long rod portion of the second rotating member 32.

[0052] In this embodiment, two handles 4 are provided. The two handles 4 are slidably connected to the other side of the two connecting members 2 . Specifically, the handles 4 are slidably connected to the connecting portion 23 . The handles 4 are used to switch the first rotating member 31 between a locked state and an unlocked state.

[0053] Specifically, see Figure 5-Figure 8 The handle 4 is provided with a locking block 42 on one side of the corresponding connecting piece 2, and a locking groove 331 is provided on the side of the locking gear 33 close to the corresponding connecting piece 2. The locking block 42 can pass through the connecting piece 2 and extend into the locking groove 331, and the outer wall of the locking block 42 fits into the groove wall of the locking groove 331. The top of the locking block 42 is an inclined surface, and the height of the locking block 42 gradually increases from close to the locking gear 33 to away from the locking gear 33. The handle 4 is also provided with an abutment block 43 on one side of the corresponding connecting piece 2. A first elongated groove 233 is provided on the corresponding connecting piece 2 in the vertical direction, and the abutment block 43 extends into the first elongated groove 233, and a second spring is provided between the top of the abutment block 43 and the first elongated groove 233. The second spring is always in a compressed state, used to push the handle 4 down.

[0054] When the first rotating member 31 is in the locked state, the locking block 42 is limited in the locking groove 331, and under the action of the second spring restoring force, the limiting block always pushes down the locking groove 331, that is, the handle 4 always has a tendency to move downward.

[0055] Furthermore, the handle 4 is manually moved up to further compress the second spring, and the inclined surface of the locking block 42 gradually pushes the locking gear 33 to move toward the first gear groove 311 until the locking gear 33 is completely disengaged from the second gear groove 231, and the locking block 42 is disengaged from the locking groove 331. At this time, the first rotating member 31 is switched to the unlocked state, and the first rotating member 31 and the second rotating member 32 are rotated to release the handle 4. The second spring pushes the handle 4 to move downward, and the first spring pushes the locking spring, so that the locking block 42 is tightly against the side of the locking gear 33.

[0056] Suitably, the connecting member 2 is further provided with a second elongated slot 234 in the vertical direction. The second elongated slot 234 is connected to the bottom of the second gear slot 231. The locking block 42 extends into the locking slot 331 through the second elongated slot 234. When the handle 4 is manually moved upward, the locking block 42 slides along the second elongated slot 234. Preferably, both sides of the connecting member 2 in the width direction respectively abut against the two slot walls of the second elongated slot 234 to ensure the unique movement of the locking block 42 in the vertical direction.

[0057] To further ensure the uniqueness of the vertical movement of the locking block 42 and constrain its horizontal movement, a guide block 44 is provided on the side of the handle 4 proximate to its corresponding connector 2. A guide hole 235 is provided vertically on the corresponding connector 2. The guide hole 235 has a rectangular cross-section, and the widthwise sides of the guide block 44 fit within the walls of the guide hole 235. In this embodiment, two guide blocks 44 are provided, corresponding to the two guide holes 235. In other feasible embodiments, the number of guide blocks 44 may vary, as long as there is a one-to-one correspondence between each guide block 44 and each guide hole 235.

[0058] The foldable frame provided in this embodiment is convenient for switching between a folded state and an unfolded state. Specifically:

[0059] When the cam 33 is in the unlocked position, the first spring pushes the locking gear 33 to be embedded in the second gear groove 231, and the locking block 42 is limited in the locking groove 331. Under the action of the second spring restoring force, the limit block always pushes down the locking groove 331, and the first rotating member 31 is clamped on the connecting portion 23, and one side of the upper limit protrusion 321 of the second rotating member 32 is limited to one side of the limit groove 232. Manually move the handle 4 up to further compress the second spring, and the inclined surface of the locking block 42 gradually pushes the locking gear 33 to move toward the first gear groove 311 until the locking gear 33 is completely disengaged from the second gear groove 231, and the locking block 42 is disengaged from the locking groove 331. The first rotating member 31 and the second rotating member 32 are rotated to be parallel, thereby switching the foldable frame to the folded state. At this time, release the handle 4, the second spring pushes the handle 4 to move downward, the first spring pushes the locking spring, and the locking block 42 tightly abuts against the side of the locking gear 33.

[0060] Furthermore, the first rotating member 31 is rotated to drive the locking gear 33 and the locking groove 331 thereon to rotate until the locking block 42 on the handle 4 re-extends into the locking groove 331, locking the first rotating member 31 and the connecting member 2, and the second rotating member 32 is rotated in the opposite direction until the other side of the limiting protrusion 321 is limited to the other side of the limiting groove 232, thereby switching a foldable frame from a folded state to an unfolded state.

[0061] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A foldable frame, characterized in that: include: Ring frame (1); A connecting member (2), wherein two connecting members (2) are provided, and the two connecting members (2) are arranged opposite to the annular frame (1); A support assembly, wherein the support assembly is provided with two, and the two support assemblies are respectively installed on the two connecting members (2), and the support assembly comprises a first rotating member (31) and a second rotating member (32) arranged at intervals on one side of the connecting member (2), the first rotating member (31) is rotatably connected to the connecting member (2), and the second rotating member (32) is rotationally limited to the connecting member (2), a first gear groove (311) is provided on the side of the first rotating member (31) close to the connecting member (2), a locking gear (33) is embedded in the first gear groove (311), and the connecting member (2) is correspondingly provided with a second gear groove (231), the locking gear (33) is embedded in the first gear groove (311) or the second gear groove (231), a first spring is provided between the bottom of the first gear groove (311) and the locking gear (33), and the first spring is used to push the locking gear (33) to be embedded in the second gear groove (231); A handle (4), wherein two handles (4) are provided, and the two handles (4) are respectively slidably connected to the other side of the two connecting members (2), and the handle (4) is used to push the locking gear (33) to be embedded in the first gear groove (311).

2. A foldable frame according to claim 1, characterized in that: The handle (4) is provided with a locking block (42) on a side close to the corresponding connecting member (2), and the locking gear (33) is provided with a locking groove (331) on a side close to the corresponding connecting member (2). The locking block (42) can pass through the connecting member (2) and extend into the locking groove (331). The outer wall of the locking block (42) is fitted with the groove wall of the locking groove (331). The top of the locking block (42) is an inclined surface, and the height of the locking block (42) is along the side close to the lock. The fixed gear (33) gradually rises in a direction away from the locking gear (33); a side of the handle (4) close to the corresponding connecting member (2) is further provided with an abutment block (43); a first elongated slot (233) is provided on the corresponding connecting member (2) in a vertical direction; the abutment block (43) extends into the first elongated slot (233); and a second spring is provided between the top of the abutment block (43) and the first elongated slot (233); the second spring is used to push the handle (4) downward.

3. A foldable frame according to claim 1, characterized in that: The groove depth of the first gear groove (311) is greater than the thickness of the locking gear (33).

4. A foldable frame according to claim 2, characterized in that: A second elongated groove (234) is provided on the connecting member (2) in the vertical direction, the locking block (42) extends into the locking groove (331) through the second elongated groove (234), and both sides of the connecting member (2) in the width direction respectively abut against two groove walls of the second elongated groove (234).

5. A foldable frame according to claim 1, characterized in that: A limiting protrusion (321) is provided on one side of the second rotating member (32) close to the connecting member (2), and a limiting groove (232) is provided on the connecting member (2). The limiting protrusion (321) is rotationally limited in the limiting groove (232), and when the foldable frame is in a folded state, one side of the limiting protrusion (321) is limited to one side of the limiting groove (232), and when the foldable frame is in an unfolded state, the other side of the limiting protrusion (321) is limited to the other side of the limiting groove (232).

6. A foldable frame according to claim 1, characterized in that: The connecting member (2) comprises a first sleeve portion (21), a second sleeve portion (22) and a connecting portion (23); the first sleeve portion (21) and the second sleeve portion (22) are respectively connected to two sides of the connecting portion (23); the annular frame (1) is inserted into the first sleeve portion (21) and the second sleeve portion (22); and the supporting assembly and the handle (4) are both installed on the connecting portion (23).

7. A foldable frame according to claim 1, characterized in that: The support assembly further comprises a first support leg (34) and a second support leg (35), wherein the first support leg (34) and the second support leg (35) are respectively connected to the first rotating member (31) and the second rotating member (32).

8. A foldable frame according to claim 1, characterized in that: A mounting post is provided at the bottom of the first gear slot (311), the first spring is sleeved on the mounting post, and the locking gear (33) is capable of pressing the first spring and being sleeved on the mounting post.

9. The foldable frame according to claim 1, wherein: The handle (4) is further provided with a guide block (44) on one side thereof close to the corresponding connecting member (2); a guide hole (235) is provided on the corresponding connecting member (2) in a vertical direction; the cross-section of the guide hole (235) is rectangular; and both sides of the guide block (44) in a width direction are fitted into the guide hole (235).

10. The foldable frame according to claim 1, characterized in that: A hand-holding portion (41) is provided on the side of the handle (4) facing away from the corresponding connecting piece (2).

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