Folding bed frame and crib

Abstract

The present application belongs to the technical field of children's products, and discloses a folding bed frame and a baby crib. The folding bed frame comprises an upper surrounding rod assembly, a bottom connecting rod assembly, a stand, a linkage unlocking assembly and a fork-shaped connecting rod assembly. The upper surrounding rod assembly is horizontally arranged and foldable. The bottom connecting rod assembly is arranged in parallel and at intervals below the upper surrounding rod assembly. The stand is connected to the top corner and the center joint of the upper surrounding rod assembly. The two ends of the first linkage member are respectively rotatably connected to the center joint and the bottom of the stand. The second linkage member is arranged on the stand and rotatably connected to the first linkage member at the bottom. The top of the second linkage member is movable along the height direction of the stand. The fork-shaped connecting rod assembly is connected to the top of the second linkage member and the upper surrounding rod assembly. The center joint is pulled upward, which can drive the first linkage member, the second linkage member and the fork-shaped connecting rod assembly to be linked, so that the upper surrounding rod assembly is changed from the locked state to the unlocked state. The folding bed frame is convenient to fold, simple in structure and low in production cost.

Description

Technical Field

[0001] This invention relates to the field of children's products technology, and in particular to a folding bed frame and a crib. Background Technology

[0002] Currently, there are many types of cribs on the market, including folding cribs, cradles, and baby care cribs. Among them, folding cribs are becoming increasingly popular due to their advantages such as being foldable and taking up less space when stored.

[0003] Existing foldable baby bibs consist of an upper frame, a base frame, and supports pivotally connected to the four corners. They can be unfolded or folded using joints between the frames. To fold, the locking mechanisms of the upper and base frames are released, allowing them to rotate and converge towards the center, reducing the bib's footprint for easier transport and storage. However, the frame structure has many joints scattered in different locations, each independent and unconnected, making it inconvenient to operate the bib by opening and closing each joint individually. Furthermore, the folding mechanism is complex, with many components, resulting in high manufacturing costs.

[0004] Therefore, there is an urgent need for a folding bed frame and a crib to solve the above problems. Summary of the Invention

[0005] One object of the present invention is to provide a folding bed frame that is easy to fold, has a simple structure, and low production cost.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Folding bed frame, including:

[0008] Upper railing assembly, which is horizontally arranged and foldable;

[0009] The bottom connecting rod assembly is arranged parallel to and spaced apart below the upper surrounding rod assembly, and includes a central joint;

[0010] The column has two ends rotatably connected to the top corner of the upper enclosure assembly and the central joint, respectively.

[0011] The linkage unlocking component includes a first linkage member and a second linkage member. The two ends of the first linkage member are rotatably connected to the central joint and the bottom of the column, respectively. The second linkage member is disposed on the column, and the bottom of the second linkage member is rotatably connected to the first linkage member. The top of the second linkage member can move along the height direction of the column.

[0012] A fork-shaped linkage assembly is connected between the top of the second linkage member and the upper retaining rod assembly;

[0013] Pulling the central joint upward to a preset position can drive the first linkage component, the second linkage component, and the fork-shaped linkage assembly to move together, so that the upper enclosure rod assembly changes from a locked state to an unlocked state.

[0014] The central joint moves upward from the preset position, the second linkage moves downward along the column, the second linkage disengages from the fork-shaped connecting rod assembly, and the upper surrounding rod assembly and the bottom connecting rod assembly can be folded respectively.

[0015] As an optional solution to the folding bed frame provided by the present invention, the upper surrounding rod assembly includes multiple upper surrounding rod groups, which are arranged in pairs to form an upper surrounding frame.

[0016] The upper rod assembly includes a first joint seat, a first upper rod, and pins. The two first upper rods are respectively disposed on opposite sides of the first joint seat and are rotatably connected to the first joint seat. The end of the first upper rod away from the first joint seat is rotatably connected to the column. The two pins are respectively provided corresponding to the two first upper rods. Each pin can rotate with the first upper rod and move along the length direction of the first upper rod. Both pins can abut against the first joint seat to make the two first upper rods collinear, so that the upper rod assembly is in a locked state.

[0017] The fork-shaped linkage assembly is connected between the second linkage member and the corresponding pin. The two pins can move in opposite directions under the drive of the corresponding fork-shaped linkage assembly until the pins separate from the first joint seat, and the upper retaining rod assembly is unlocked.

[0018] As an optional solution to the folding bed frame provided by the present invention, the upper frame rod assembly further includes an unlocking fork and a pull rope. The unlocking fork is disposed on the side of the first upper frame rod away from the pin. The unlocking fork includes a deflecting part and a connecting part connected at an angle. The intersection of the deflecting part and the connecting part is rotatably connected to the first upper frame rod. The connecting part is connected to the pin through the pull rope. The fork-shaped linkage assembly can deflect the deflecting part to rotate the connecting part, thereby causing the pin to slide.

[0019] As an optional solution to the folding bed frame provided by the present invention, the fork-shaped linkage assembly includes a fork-shaped connecting rod and a fork. One end of the fork-shaped connecting rod and one end of the fork are hinged together. The other end of the fork-shaped connecting rod is rotatably connected to the second linkage member. The other end of the fork is connected to the actuating part and can drive the actuating part to rotate.

[0020] As an optional solution to the folding bed frame provided by the present invention, the second linkage includes a traction rod and an upper connecting seat. The upper connecting seat includes a connecting head and a connecting sleeve. The connecting sleeve is sleeved on the top of the traction rod, and the connecting head is fixedly connected to the top of the connecting sleeve. The connecting head is rotatably connected to the end of the fork-shaped connecting rod, and the bottom of the traction rod is rotatably connected to the first linkage.

[0021] As an optional solution for the folding bed frame provided by the present invention, the diameter of the connecting head is larger than the diameter of the connecting sleeve, the top of the connecting head is provided with a first arc-shaped surface, the side of the connecting head near the connecting sleeve is provided with a second arc-shaped surface, and the end of the fork-shaped connecting rod is provided with a first fork and a second fork at an angle. When the upper rail assembly is in the locked state, the first fork abuts against the first arc-shaped surface, and the second fork abuts against the second arc-shaped surface.

[0022] As an optional solution to the folding bed frame provided by the present invention, the second linkage further includes a traction link, the two ends of which are rotatably connected to the traction rod and the first linkage, respectively.

[0023] As an optional solution for the folding bed frame provided by the present invention, the upright is hollow inside and sleeved on the outside of the traction rod. The side wall of the upright corresponding to both ends of the traction rod is respectively provided with clearance grooves, and the two clearance grooves are respectively used to avoid the fork-shaped connecting rod and the traction connecting rod.

[0024] As an optional solution to the folding bed frame provided by the present invention, the upper frame rod assembly further includes two pivots and two elastic elements. A sliding groove is formed along the length direction of the pin. Each pivot passes through one of the first upper frame rods and one of the sliding grooves and slides along the sliding groove. Each elastic element is disposed in one of the sliding grooves. One end of the elastic element is connected to the pivot and the other end abuts against the pin. The elastic elements and the pivots are distributed sequentially in a direction away from the other pin.

[0025] Another objective of this invention is to provide a crib that is simple in structure, easy to fold, and provides a good user experience.

[0026] To achieve this objective, the present invention adopts the following technical solution:

[0027] A crib, comprising a crib bumper body and the aforementioned folding crib frame, wherein the crib bumper body is mounted on the folding crib frame.

[0028] The beneficial effects of this invention are:

[0029] The folding bed frame provided by this invention includes an upper rail assembly, a bottom connecting rod assembly, uprights, a linkage unlocking assembly, and a fork-shaped connecting rod assembly. The upper rail assembly, bottom connecting rod assembly, and uprights form the overall frame structure of the folding bed frame. The bottom connecting rod assembly includes a central joint, with both ends of a first linkage member rotatably connected to the central joint and the bottom of the upright, respectively. A second linkage member is mounted on the upright, its bottom rotatably connected to the first linkage member, and its top can move along the height of the upright. A fork-shaped connecting rod assembly connects the top of the second linkage member and the upper rail assembly. Pulling the central joint upward to a preset position activates the first linkage member, the second linkage member, and the fork-shaped connecting rod assembly, causing the upper rail assembly to change from a locked state to an unlocked state. In other words, the upper rail assembly can be unlocked by pulling the central joint. When the central joint moves upward from the preset position, the second linkage member moves downward along the upright, disengaging from the fork-shaped connecting rod assembly, allowing the upper rail assembly and the bottom connecting rod assembly to fold separately. In other words, after the second linkage component disengages from the fork-shaped linkage assembly, the folding of the upper surround rod assembly and the bottom linkage assembly are independent and do not interfere with each other. Since the folding operations of the upper surround rod assembly and the bottom linkage assembly are asynchronous and asymmetrical when the bed frame is folded as a whole, the entire folding bed frame can be folded and stored by folding the upper surround rod assembly and the bottom linkage assembly separately. The structure is simple and the operation is convenient. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the folding bed frame provided in an embodiment of the present invention;

[0032] Figure 2 This is a partial structural schematic diagram of the folding bed frame provided in an embodiment of the present invention;

[0033] Figure 3 This is an exploded view of a portion of the structure of the folding bed frame provided in an embodiment of the present invention;

[0034] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0035] Figure 5 This is a schematic diagram of the upper retaining rod assembly in a locked state according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the upper retaining rod assembly in the unlocked state according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the folded bed frame provided in an embodiment of the present invention after being folded.

[0038] Figure 8 yes Figure 7 A magnified view of a section at point B in the middle;

[0039] Figure 9 yes Figure 7 A magnified view of a section at point C;

[0040] Figure 10 This is a schematic diagram of the structure of the baby bed provided in an embodiment of the present invention.

[0041] In the picture:

[0042] 1. Upper rail assembly; 11. First joint seat; 111. Positioning block; 12. First upper rail; 13. Pin; 14. Rotating shaft; 15. Elastic element; 16. Unlocking fork; 161. Actuating part; 162. Connecting part; 17. Pull rope; 18. Mounting seat;

[0043] 2. Bottom connecting rod assembly; 21. Central joint; 22. Bottom connecting rod;

[0044] 3. Column; 31. Upper connector; 32. Lower connector; 33. Connecting rod mounting component;

[0045] 4. Linkage unlocking component; 41. First linkage component; 42. Second linkage component; 421. Traction rod; 422. Upper connecting seat; 4221. First arc-shaped surface; 4222. Second arc-shaped surface; 423. Lower connecting seat; 424. Traction link;

[0046] 5. Fork-shaped linkage assembly; 51. Fork-shaped connecting rod; 511. First fork head; 512. Second fork head; 52. Shift fork;

[0047] 6. Support components;

[0048] 100. Bedside body. Detailed Implementation

[0049] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for 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, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0054] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0057] This embodiment provides a folding bed frame that can be unfolded to allow infants and toddlers to play inside, and can also be folded for storage to save space. Figure 1 and Figure 2 As shown, the folding bed frame includes an upper rail assembly 1, a bottom connecting rod assembly 2, a column 3, a linkage unlocking assembly 4, and a fork-shaped connecting rod assembly 5.

[0058] The upper rail assembly 1 is horizontally positioned and foldable; the bottom connecting rod assembly 2 is parallel and spaced below the upper rail assembly 1, and includes a central joint 21; the two ends of the upright 3 are rotatably connected to the top corner of the upper rail assembly 1 and the central joint 21, respectively. In other words, the upper rail assembly 1, the bottom connecting rod assembly 2, and the upright 3 form the overall frame structure of the folding bed frame. The linkage unlocking assembly 4 includes a first linkage member 41 and a second linkage member 42. The two ends of the first linkage member 41 are rotatably connected to the central joint 21 and the bottom of the upright 3, respectively. The second linkage member 42 is mounted on the upright 3, with its bottom rotatably connected to the first linkage member 41. The top of the second linkage member 42 can move along the height of the upright 3; the fork-shaped connecting rod assembly 5 connects the top of the second linkage member 42 and the upper rail assembly 1. Pulling the central joint 21 upwards to the preset position will activate the first linkage 41, the second linkage 42, and the fork-shaped linkage assembly 5, thereby changing the upper rail assembly 1 from a locked state to an unlocked state. In other words, the upper rail assembly 1 can be unlocked by pulling the central joint 21.

[0059] The central joint 21 moves upward from a preset position, the second linkage 42 moves downward along the column 3, and the second linkage 42 disengages from the fork-shaped connecting rod assembly 5. This allows the upper surrounding rod assembly 1 and the bottom connecting rod assembly 2 to fold independently. In other words, after the second linkage 42 disengages from the fork-shaped connecting rod assembly 5, the folding of the upper surrounding rod assembly 1 and the bottom connecting rod assembly 2 is independent and does not interfere with each other. Because the folding operations of the upper surrounding rod assembly 1 and the bottom connecting rod assembly 2 are asynchronous and asymmetrical when the bed frame is folded as a whole, the entire folding bed frame can be folded and stored by folding the upper surrounding rod assembly 1 and the bottom connecting rod assembly 2 separately. This results in a simple structure and convenient operation.

[0060] like Figures 1-3 As shown, in this embodiment, the folding bed frame has a cuboid frame structure, and the upper rail assembly 1 includes multiple upper rail groups, which are arranged in pairs to form a rectangular upper frame.

[0061] Specifically, the upper rod assembly includes a first joint seat 11, a first upper rod 12, and pins 13. There is one first joint seat 11, and two first upper rods 12 and two pins 13. The two first upper rods 12 are located on opposite sides of the first joint seat 11 and are rotatably connected to it. One end of the first upper rod 12 facing away from the first joint seat 11 is rotatably connected to the column 3. The two pins 13 are respectively provided corresponding to the two first upper rods 12. Each pin 13 can rotate with the first upper rod 12 and move along the length of the first upper rod 12. Both pins 13 can abut against the first joint seat 11 to align the two first upper rods 12 in a straight line, thus locking the upper rod assembly 1. The fork-shaped linkage assembly 5 connects the second linkage member 42 and the corresponding pin 13. The two pins 13 can move in opposite directions under the action of the corresponding fork-shaped linkage assembly 5 until the pins 13 separate from the first joint seat 11, and the upper rail assembly 1 is unlocked. That is, the pins 13 can disengage from the first joint seat 11 under the action of the fork-shaped linkage assembly 5, thereby allowing the first upper rail 12 to rotate relative to the first joint seat 11 to complete the folding of the upper rail assembly 1.

[0062] More specifically, such as Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, a positioning block 111 is provided inside the first joint seat 11. The positioning block 111 has a locking surface and two unlocking surfaces. The two unlocking surfaces are arranged opposite each other, and both unlocking surfaces are adjacent to the locking surface. When the two pins 13 move towards each other, they can abut against the locking surface, locking the two first upper rods 12. At the same time, the two pins 13 can also disengage from the locking surface under the action of the corresponding fork-shaped connecting rod assembly 5. At this time, rotating the first upper rod 12 will allow each pin 13 to slide along the corresponding unlocking surface, unlocking the upper rod assembly 1. In this embodiment, the unlocking surface is a curved surface structure, and the two unlocking surfaces form an eight-shaped surface. Correspondingly, the end face of the pin 13 that abuts against the unlocking surface is also a curved surface structure. See [reference needed]. Figure 5 and Figure 6 When the first upper rod 12 is rotated, the pin 13 can slide on the unlocking surface. Of course, in other embodiments, the unlocking surface can also be an inclined plane, which is not limited here.

[0063] More specifically, continue to refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 The upper arm assembly also includes an unlocking fork 16 and a pull rope 17. The unlocking fork 16 is located on the side of the first upper arm 12 away from the pin 13. The unlocking fork 16 includes an actuating part 161 and a connecting part 162 connected at an angle. The intersection of the actuating part 161 and the connecting part 162 is rotatably connected to the first upper arm 12. The connecting part 162 is connected to the pin 13 via the pull rope 17. The fork-shaped connecting rod assembly 5 can actuate the actuating part 161, causing the connecting part 162 to rotate, thereby driving the pin 13 to slide. In this embodiment, the first upper arm 12 is hollow inside, and the pin 13 is movably inserted into one end of the first upper arm 12. The unlocking fork 16 is rotatably mounted on the mounting base 18, and the mounting base 18 is fixed to the inner wall of the first upper arm 12. When the unlocking fork 16 rotates, it pulls the pin 13 to slide via the pull rope 17.

[0064] More specifically, the upper arm assembly also includes two pivots 14 and two elastic elements 15. A groove is formed along the length of the pin 13, and each pivot 14 passes through a first upper arm 12 and a groove, sliding along the groove. Each elastic element 15 is disposed within a groove, one end of which is connected to the pivot 14, and the other end abuts against the pin 13. The elastic elements 15 and pivots 14 are distributed sequentially in a direction away from the other pin 13. During unlocking, the unlocking fork 16 rotates under the drive of the fork-shaped linkage assembly 5, pulling the pin 13 in a direction away from each other, while the pivot 14 remains fixed, and the elastic element 15 is compressed. When the pin 13 moves to a position disengaged from the locking surface, the first upper arm 12 rotates, causing the pin 13 to rotate about the pivot 14 as its axis. The pin 13 abuts against the unlocking surface and slides along the unlocking surface, thereby achieving the folding of the upper arm assembly 1. For example, the elastic element 15 can be a compression spring.

[0065] like Figures 2-4 As shown, the fork-shaped linkage assembly 5 includes a fork-shaped connecting rod 51 and a shift fork 52. One end of the fork-shaped connecting rod 51 and one end of the shift fork 52 are hinged together. The other end of the fork-shaped connecting rod 51 is rotatably connected to a second linkage member 42. The other end of the shift fork 52 is connected to a detonating part 161 and can drive the detonating part 161 to rotate. The second linkage member 42 can drive the fork-shaped connecting rod 51 to rotate, thereby driving the shift fork 52 to rotate, so as to detonate the aforementioned detonating part 161.

[0066] Specifically, the second linkage 42 includes a traction rod 421 and an upper connecting seat 422. The upper connecting seat 422 includes a connecting head and a connecting sleeve. The connecting sleeve is fitted onto the top of the traction rod 421, and the connecting head is fixed to the top of the connecting sleeve. The connecting head is rotatably connected to the end of the fork-shaped connecting rod 51, and the bottom of the traction rod 421 is rotatably connected to the first linkage 41.

[0067] In this embodiment, refer to Figures 2-4 The diameter of the connecting head is larger than the diameter of the connecting sleeve. The top of the connecting head has a first arc-shaped surface 4221, and the side of the connecting head closest to the connecting sleeve has a second arc-shaped surface 4222. The ends of the fork-shaped connecting rod 51 are provided with a first fork 511 and a second fork 512 at an angle. When the upper retaining rod assembly 1 is in the locked state, the first fork 511 abuts against the first arc-shaped surface 4221, and the second fork 512 abuts against the second arc-shaped surface 4222. Figures 7-9As shown, when the connecting head moves downward, the second fork head 512 is pulled downward by the second arc-shaped surface 4222, causing the fork-shaped connecting rod 51 to rotate counterclockwise. Since one end of the fork 52 is hinged to the other end of the fork-shaped connecting rod 51, the fork 52 rotates clockwise, which in turn causes the actuating part 161 of the unlocking fork 16 to rotate downward, that is, the unlocking fork 16 rotates counterclockwise, and the connecting part 162 rotates upward, pulling the pin 13 away from the locking surface on the positioning block 111, thereby unlocking the upper enclosure rod assembly 1.

[0068] More specifically, such as Figure 2 and Figure 3 As shown, the second linkage 42 also includes a traction link 424 and a lower connecting seat 423. One end of the traction link 424 is rotatably connected to the bottom of the traction rod 421 through the lower connecting seat 423, and the other end of the traction link 424 is rotatably connected to the first linkage 41.

[0069] In this embodiment, the column 3 is hollow inside and is sleeved on the outside of the traction rod 421. The traction rod 421 can move up and down along its axial direction within the inner cavity of the column 3. The column 3 has clearance grooves on its side walls corresponding to both ends of the traction rod 421. The two clearance grooves are used to avoid the fork-shaped connecting rod 51 and the traction connecting rod 424, respectively.

[0070] Specifically, an upper connector 31 is fixedly connected to the top of the column 3, and two adjacent first upper rods 12 of two adjacent upper rod groups are rotatably connected to the upper connector 31. A connecting rod mounting member 33 is also provided on the upper side wall of the column 3, and fork-shaped connecting rods 51 corresponding to two adjacent first upper rods 12 are rotatably connected to the connecting rod mounting member 33. The forked end of the fork-shaped connecting rod 51 extends into the clearance groove at the top of the column 3 and connects to the upper connecting seat 422 at the top of the traction rod 421; the other end of the fork-shaped connecting rod 51 is hinged to the fork 52. A lower connector 32 is fixedly connected to the bottom of the column 3, and the portion of the traction connecting rod 424 extending out of the clearance groove at the bottom of the column 3 is rotatably mounted on the lower connector 32 along the rotation axis of the first linkage member 41. Both the upper connector 31 and the lower connector 32 are existing technologies, and their structures will not be described in detail in this embodiment.

[0071] like Figures 1-3 As shown, the bottom connecting rod assembly 2 also includes bottom connecting rods 22. One end of each of the four bottom connecting rods 22 is rotatably connected to the central joint 21, and the other end of the bottom connecting rod 22 extends horizontally away from the central joint 21 and is rotatably connected to the lower connecting piece 32 at the bottom of the corresponding column 3.

[0072] Continue to refer to Figure 1 The folding bed frame also includes support components 6, one end of which is rotatably connected to the central joint 21, and the other end is able to abut against the ground to support the folding bed frame.

[0073] The folding process of the folding bed frame provided in this embodiment is as follows: Pulling up the central joint 21 causes the first linkage 41 to fold towards the center. The rotation of the first linkage 41 causes the traction rod 424 to move downwards, which in turn causes the traction rod 421 to move downwards. As the traction rod 421 moves downwards, the upper connecting seat 422 moves downwards. The second fork head 512 is pulled downwards by the second arc-shaped surface 4222, causing the fork-shaped connecting rod 51 to rotate counterclockwise. Since one end of the fork 52 is hinged to the other end of the fork-shaped connecting rod 51, the clockwise rotation of the fork 52 causes the actuating part 161 of the unlocking fork 16 to rotate downwards, i.e., the unlocking fork 16 rotates counterclockwise. The connecting part 162 rotates upwards, pulling the pin 13 away from the locking surface on the positioning block 111, thereby unlocking the upper rail assembly 1. After the upper rail assembly 1 is unlocked, the central joint 21 is pulled upwards, moving upwards from its preset position. The second linkage 42 then moves downwards along the column 3. The second linkage 42 disengages from the fork-shaped linkage assembly 5, allowing the upper rail assembly 1 and the bottom linkage assembly 2 to fold independently. In other words, after the second linkage 42 disengages from the fork-shaped linkage assembly 5, the folding of the upper rail assembly 1 and the bottom linkage assembly 2 is independent and does not interfere with each other. Because the folding operations of the upper rail assembly 1 and the bottom linkage assembly 2 are asynchronous and asymmetrical when the bed frame is folded as a whole, the entire folding bed frame can be folded and stored by folding the upper rail assembly 1 and the bottom linkage assembly 2 separately.

[0074] The unfolding process of the folding bed frame provided in this embodiment is as follows: Pressing the central joint 21 downwards causes the central joint 21 to drive the first linkage 41 and the bottom connecting rod 22 to unfold in all directions. The first linkage 41 drives the traction connecting rod 424 to move upwards, thereby pushing the traction rod 421 to move upwards along the column 3. When the bottom connecting rod 22 unfolds, it drives the upper surrounding rod assembly 1 to unfold. When the traction rod 421 moves upwards, the upper connecting seat 422 moves upwards. During the upward movement of the upper connecting seat 422, the first arc-shaped surface 4221 abuts against the first fork head 511. As the upper connecting seat 422 continues to move upwards, the first fork head 511 receives the upward thrust from the first arc-shaped surface 4221, causing the fork-shaped connecting rod 51 to rotate clockwise. Since one end of the fork 52 is hinged to the other end of the fork-shaped connecting rod 51, the fork 52 rotates counterclockwise and no longer applies pressure to the actuating part 161 of the unlocking fork 16. At this time, the elastic element 15 inside the pin 13 returns to its elastic deformation, causing the unlocking fork 16 to rotate clockwise to reset, while the pin 13 abuts against the locking surface, locking the upper rail assembly 1.

[0075] like Figure 10As shown, this embodiment also provides a crib, which includes a crib bumper body 100 and the aforementioned folding crib frame, with the crib bumper body 100 installed on the folding crib frame. When the folding crib frame is unfolded, infants and toddlers can play within the area enclosed by the crib bumper body 100; when not in use, the crib can be folded for storage, saving space and providing a good user experience.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A folding bed frame, characterized in that, include: Upper railing assembly (1), which is horizontally arranged and foldable; The bottom connecting rod assembly (2) is arranged parallel to and spaced apart below the upper surrounding rod assembly (1), and includes a central joint (21). The two ends of the column (3) are respectively connected to the top corner of the upper enclosure assembly (1) and the central joint (21). The linkage unlocking component (4) includes a first linkage component (41) and a second linkage component (42). The two ends of the first linkage component (41) are rotatably connected to the bottom of the central joint (21) and the column (3), respectively. The second linkage component (42) is disposed on the column (3). The bottom of the second linkage component (42) is rotatably connected to the first linkage component (41). The top of the second linkage component (42) can move along the height direction of the column (3). A fork-shaped linkage assembly (5) is connected between the top of the second linkage member (42) and the upper retaining rod assembly (1); Pulling the central joint (21) upward to a preset position can drive the first linkage (41), the second linkage (42) and the fork-shaped linkage assembly (5) to move together, so that the upper enclosure rod assembly (1) changes from a locked state to an unlocked state; The central joint (21) moves upward from the preset position, the second linkage (42) moves downward along the column (3), the second linkage (42) disengages from the fork-shaped connecting rod assembly (5), and the upper surrounding rod assembly (1) and the bottom connecting rod assembly (2) can be folded respectively; The fork-shaped linkage assembly (5) includes a fork-shaped connecting rod (51) and a shift fork (52). One end of the fork-shaped connecting rod (51) and one end of the shift fork (52) are hinged together, and the other end of the fork-shaped connecting rod (51) is rotatably connected to the second linkage member (42). The second linkage (42) includes a traction rod (421) and an upper connecting seat (422). The upper connecting seat (422) includes a connecting head and a connecting sleeve. The connecting sleeve is sleeved on the top of the traction rod (421). The connecting head is fixed to the top of the connecting sleeve. The connecting head is rotatably connected to the end of the fork-shaped connecting rod (51). The diameter of the connecting head is larger than the diameter of the connecting sleeve. The top of the connecting head is provided with a first arc-shaped surface (4221), and the side of the connecting head near the connecting sleeve is provided with a second arc-shaped surface (4222). The end of the fork-shaped connecting rod (51) is provided with a first fork (511) and a second fork (512) at an angle. When the upper enclosure rod assembly (1) is in the locked state, the first fork (511) abuts against the first arc-shaped surface (4221), and the second fork (512) abuts against the second arc-shaped surface (4222).

2. The folding bed frame according to claim 1, characterized in that, The upper enclosure rod assembly (1) includes multiple upper enclosure rod groups, which are arranged in pairs to form an upper enclosure frame; The upper rod assembly includes a first joint seat (11), a first upper rod (12), and pins (13). The two first upper rods (12) are respectively disposed on opposite sides of the first joint seat (11) and are rotatably connected to the first joint seat (11). The end of the first upper rod (12) away from the first joint seat (11) is rotatably connected to the column (3). The two pins (13) are respectively provided corresponding to the two first upper rods (12). Each pin (13) can rotate with the first upper rod (12) and move along the length direction of the first upper rod (12). The two pins (13) can abut against the first joint seat (11) so that the two first upper rods (12) are in the same straight line, so that the upper rod assembly (1) is in a locked state. The fork-shaped linkage assembly (5) is connected between the second linkage member (42) and the corresponding pin (13). The two pins (13) can move in opposite directions to each other under the drive of the corresponding fork-shaped linkage assembly (5) until the pin (13) separates from the first joint seat (11) and the upper rail assembly (1) is unlocked.

3. The folding bed frame according to claim 2, characterized in that, The upper rod assembly also includes an unlocking fork (16) and a pull rope (17). The unlocking fork (16) is disposed on the side of the first upper rod (12) away from the pin (13). The unlocking fork (16) includes a toggle part (161) and a connecting part (162) connected at an angle. The intersection of the toggle part (161) and the connecting part (162) is rotatably connected to the first upper rod (12). The connecting part (162) is connected to the pin (13) through the pull rope (17). The fork-shaped connecting rod assembly (5) can actuate the toggle part (161) to rotate the connecting part (162) so as to drive the pin (13) to slide.

4. The folding bed frame according to claim 3, characterized in that, The other end of the fork (52) that is not hinged to the fork-shaped connecting rod (51) is connected to the actuating part (161) and can drive the actuating part (161) to rotate.

5. The folding bed frame according to claim 4, characterized in that, The bottom of the traction rod (421) is rotatably connected to the first linkage (41).

6. The folding bed frame according to claim 5, characterized in that, The second linkage (42) also includes a traction link (424), the two ends of which are rotatably connected to the traction rod (421) and the first linkage (41), respectively.

7. The folding bed frame according to claim 6, characterized in that, The column (3) is hollow inside and is fitted outside the traction rod (421). The column (3) has clearance grooves on its side walls corresponding to both ends of the traction rod (421). The two clearance grooves are used to avoid the fork-shaped connecting rod (51) and the traction connecting rod (424) respectively.

8. The folding bed frame according to claim 2, characterized in that, The upper rod assembly also includes two rotating shafts (14) and two elastic elements (15). A sliding groove is opened along the length direction of the pin (13). Each rotating shaft (14) passes through one of the first upper rods (12) and one of the sliding grooves and slides along the sliding groove. Each elastic element (15) is disposed in one of the sliding grooves. One end of the elastic element (15) is connected to the rotating shaft (14), and the other end abuts against the pin (13). The elastic elements (15) and the rotating shafts (14) are distributed sequentially in a direction away from the other pin (13).

9. A crib, characterized in that, It includes a bed surround body (100) and a folding bed frame as described in any one of claims 1-8, wherein the bed surround body (100) is mounted on the folding bed frame.

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