A crib

Abstract

The utility model discloses a baby crib, it includes four stand, four handrail seat and bottom support, and bottom support includes base and four first bottom pipe of two sides respectively hinged in base and a stand, and the gear of opposite two first bottom pipe engages, every handrail group includes handrail seat, two opposite lower handrail rod, two opposite upper handrail, and lower handrail rod two sides are respectively hinged in stand and handrail seat, and the opposite side of two upper handrail rod is hinged in handrail seat and can move in length direction to handrail seat, and the other side is respectively hinged in the upper side of adjacent two stands. Such setting, stand will not be inclined and fall to need operator to gather, and also need not operator to press handrail seat downward, only need to pull base upward until baby crib is completely folded, like this, make the folding operation of the utility model baby crib very simple.

Description

Technical Field

[0001] This utility model relates to the field of infant and toddler products, and in particular to a crib. Background Technology

[0002] A crib typically includes four uprights, four armrests, and a base frame. The base frame includes a base and four first base tubes. One side of each of the four first base tubes is pivotally connected to the base, and the other side is pivotally connected to the lower side of each of the four uprights. Each armrest assembly includes an armrest seat and two opposite armrest bars. The opposite sides of the two armrest bars are pivotally connected to the armrest seat, and the other side is pivotally connected to the upper side of each of the two adjacent uprights.

[0003] When folding a traditionally designed crib, lifting the base causes the rotating first base tubes to pull the uprights towards the base. However, because the sides of the first base tubes connected to the base are not interconnected, each becomes an independent four-way free end when the crib is folded. This causes the four uprights to become unstable, with some even pulling the armrests and tilting to the point of near collapse. Furthermore, the armrests do not fold automatically; the operator must press down on the armrest seats to rotate them relative to the armrests and fold them. In other words, with a traditional crib, the operator must lift the base, release it, press down the armrest seats, and then fold the uprights together to fold the crib. This makes folding the crib quite cumbersome. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a baby crib that is very easy to fold.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A crib that can be converted between an unfolded state and a folded state, the crib comprising: Four pillars; The base support includes a base and four first bottom tubes. One side of each of the four first bottom tubes is pivotally connected to the base, and the other side is pivotally connected to the lower side of the four columns. At least part of the outer edge of the side of each first bottom tube away from the column is provided with a continuous tooth structure, so that the opposite sides of two opposing first bottom tubes form a gear meshing structure. The four handrail groups each include a handrail base, two oppositely arranged lower handrails, and two oppositely arranged upper handrails. The opposite sides of the two lower handrails of each handrail group are pivotally connected to the handrail base, and the other side is pivotally connected to the upper side of two adjacent columns. The opposite sides of the two upper handrails are pivotally connected to the handrail base and can move relative to the handrail base in the length direction, and the other side is pivotally connected to the upper side of two adjacent columns.

[0006] Preferably, the pivot position of the upper handrail and the column on the same side of each handrail group is located above the pivot position of the lower handrail and the same column, and the pivot position of the upper handrail and the handrail seat is located above the pivot position of the handrail and the same handrail seat.

[0007] Preferably, the upper side of the armrest seat is provided with two first elongated holes and two travel holes, the two first elongated holes being arranged opposite each other in the horizontal direction of the armrest seat; each travel hole includes a second elongated hole in the horizontal direction and an oblique elongated hole extending downward and towards the column direction, the two second elongated holes being located between the two first elongated holes, and the upper end of the oblique elongated hole communicating with the end of the second elongated hole facing the first elongated hole on the same side; a first pivot and a second pivot respectively pass through the first elongated hole and the travel hole to pivotally connect the upper armrest rod.

[0008] When the crib is in the unfolded state, the second pivot is located inside the second elongated hole, and the first pivot is also located inside the first elongated hole on the side facing the second elongated hole.

[0009] Preferably, in the same handrail assembly, the distance between the pivot point of the upper handrail and the column and the edge of the column is smaller than the distance between the pivot point of the lower handrail and the column and the edge of the column.

[0010] Preferably, the handrail assembly further includes two linkage components, and a third elongated hole extending vertically is provided in the middle of the handrail seat, the third elongated hole being located between two stroke holes; the upper sides of the two linkage components are coaxially pivotally connected to the third elongated hole, and the lower sides are respectively pivotally connected to the opposite sides of the two lower handrails.

[0011] Preferably, when the crib is in the unfolded state, the pivot positions of the two linkages and the two lower armrests are located between the pivot positions of the two lower armrests and the armrest seats.

[0012] Preferably, the armrest seat along the length of the crib is provided with the linkage, or the linkage is provided on all four armrests.

[0013] Preferably, the base support also includes four second base tubes, one side of which is pivotally connected to the base; when the crib is in the unfolded state, the four second base tubes are located on the upper side of the four first base tubes.

[0014] Preferably, a carrying handle is also pivotally connected to the base support.

[0015] The beneficial effects of this utility model are as follows: When folding the crib, pulling the base upwards will simultaneously pull the uprights via the gear mechanism engaging the first bottom tube. The uprights will tilt, but not to the point where the operator would need to fold them up. Moreover, when the uprights tilt, the upper armrests can be moved, allowing the armrest seats to move downwards. Thus, the operator does not need to press down on the armrest seats. In other words, to fold the crib of this application, one only needs to pull the base upwards until the crib is fully folded, making the folding operation of the crib of this utility model very convenient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the baby crib of this utility model in its unfolded state; Figure 2 This is a plan view of the baby crib of this utility model in its unfolded state; Figure 3 According to Figure 1 Enlarged cross-sectional view along the AA direction; Figure 4 This is an enlarged schematic diagram of the first armrest assembly of the baby crib of this utility model; Figure 5 This is an enlarged schematic diagram of the second armrest assembly of the baby crib of this utility model; Figure 6 This is a cross-sectional plan view of the bottom support and uprights of the baby crib in the process of being folded up. Figure 7 According to Figure 6 Enlarged diagram of part B; Figure 8 This is a plan view of the baby crib of this utility model in the process of being folded up; Figure 9 This is a three-dimensional enlarged schematic diagram of the bottom support portion of the baby crib during the folding process. Figure 10 This is an enlarged schematic diagram of the first armrest assembly of the baby crib during the folding process. Figure 11 This is an enlarged schematic diagram of the second armrest assembly of the baby crib during the folding process of this utility model; Figure 12 A plan view of the baby crib in its folded state. Detailed Implementation

[0017] like Figures 1 to 5 As shown, this utility model discloses a crib that can be converted between an unfolded state and a folded state. The crib includes: Four pillars 1; The base support 2 includes a base 21 and four first bottom tubes 22. One side of each of the four first bottom tubes 22 is pivotally connected to the base 21, and the other side is pivotally connected to the lower side of the four columns 1. Each first bottom tube 22 has at least a portion of a continuous tooth structure 20 on the outer edge of the side facing away from the column 1, so that the opposite sides of two opposing first bottom tubes 22 form a gear meshing structure. The four handrail groups 3, each handrail group 3 includes a handrail seat 31, two oppositely arranged lower handrails 32, and two oppositely arranged upper handrails 33; the opposite sides of the two lower handrails 32 of each handrail group 3 are pivotally connected to the handrail seat 31, and the other side is pivotally connected to the upper side of two adjacent columns 1 respectively; the opposite sides of the two upper handrails 33 are pivotally connected to the handrail seat 31 and can move relative to the handrail seat 31 in the length direction, and the other side is pivotally connected to the upper side of two adjacent columns 1 respectively.

[0018] Of the four first bottom tubes 22, two are arranged opposite each other, and the other two are arranged opposite each other. The sides of the two opposite first bottom tubes 22 that are far apart are pivotally connected to the two opposite columns 1. Because the two opposite first bottom tubes 22 are engaged by a gear structure, the side of the four first bottom tubes 22 that is pivotally connected to the base 21 is no longer four independent free ends.

[0019] In each of the aforementioned handrail groups 3, the pivot point between the upper handrail 33 and the column 1 on the same side is located above the pivot point between the lower handrail 32 and the same column 1, and the pivot point between the upper handrail 33 and the handrail seat 31 is located above the pivot point between the handrail and the same handrail seat 31. Thus, the rotation and movement of the upper handrail 33 and the lower handrail 32 do not interfere with each other.

[0020] The first bottom tube 22 is fixed to a meshing seat 220 on one side, and the outer edge of the meshing seat 220 is at least partially provided with the continuous tooth structure 20.

[0021] Combination Figure 4 As shown, in this embodiment, the upper side of the armrest seat 31 is provided with two first elongated holes 311 and two travel holes 312. The two first elongated holes 311 are arranged opposite each other in the horizontal direction of the armrest seat 31. Each travel hole 312 includes a second elongated hole 3121 in the horizontal direction and an oblique elongated hole 3122 extending downward and towards the column 1. The two second elongated holes 3121 are located between the two first elongated holes 311. The upper end of the oblique elongated hole 3122 is connected to the end of the second elongated hole 3121 facing the first elongated hole 311 on the same side. A first pivot 331 and a second pivot 332 are pivotally connected to the upper armrest 33 through the first elongated hole 311 and the travel hole 312, respectively.

[0022] When the crib is in the unfolded state, the second pivot 332 is located within the second elongated hole 3121, and the first pivot 331 is also located on the side of the first elongated hole 311 facing the second elongated hole 3121. Thus, when the crib is in the unfolded state, the lower end face of the second elongated hole 3121 blocks the downward movement of the second pivot 332, thereby preventing the armrest seat 31 from moving downward.

[0023] Two pivot holes are provided on the lower side of the armrest seat 31. A third pivot 321 passes through one of the pivot holes and connects with a lower armrest 32, so that the lower armrest 32 is pivotally connected to the armrest seat.

[0024] Because this utility model baby crib adopts the above structure, when folding this utility model baby crib, pulling the base 21 upwards will cause the two opposing bottom tubes to mesh via a gear structure. This allows the four first bottom tubes 22 on the side away from the uprights 1 to move upwards and rotate synchronously. Consequently, the lower sides of the four uprights 1 will be synchronously pulled towards the base 21 (e.g., Figure 6 , 7 As shown); and because the side where the four first bottom tubes 22 are pivotally connected to the base 21 is no longer four independent free ends, even if the lower side of the four columns 1 is pulled towards the direction of the base 21, the two opposing columns 1 are also held by the two interlocking first bottom tubes 22. Thus, the four columns 1 will only tilt at a small angle (as shown). Figure 6 As shown), it will not pull all the handrail groups 3 together to tilt and fall to the ground; because the handrail group 3 adopts the above-mentioned upper handrail 33 and lower handrail 32 design, the above-mentioned tilt of each column 1 is equivalent to the column 1 rotating in a seesaw manner around the pivot connecting the lower handrail 32 and the column 1. That is, the part of each column 1 below the pivot moves towards the center of the base 21, and the part above the pivot moves outward; and it is when the part of the column 1 above the pivot moves outward and rotates that it pulls the upper handrail 33 to move outward together. In this way, the first pivot 331 is pulled in the first long hole 311 to move away from the second long hole 3121, and the second pivot 332 is pulled towards the first long hole 311, until the second pivot 332 is located at the junction of the second long hole 3121 and the oblique long hole 3122. At this time, due to gravity, and with the base 21 still being pulled upwards, the lower side of the column 1 is also being pulled towards the position of the base 21. That is, the entire column 1 is being pulled towards the center. Consequently, the upper sides of adjacent columns 1 will also exert a compressive force on the handrail assembly 3 connecting them. Gravity combined with this compressive force will force the handrail base 31 to move downwards, causing the opposite sides of the upper handrail 33 and lower handrail 32 to rotate downwards as well. When the upper handrail 33 rotates downwards, the second pivot 332 will move along the oblique elongated hole 3122 (as shown). Figure 10 , 11(As shown); and when the armrest seat 31 drives the upper armrest 33 and the lower armrest 32 to rotate downwards and move to a certain distance, each column 1 will be in a vertical state that is no longer tilted (as shown). Figure 8 (as shown), until each upright 1 can no longer be brought closer together, and the crib is completely folded (as shown). Figure 12 (As shown).

[0025] As described above, the crib of this utility model adopts the above structure, so that when folding the crib, the uprights 1 will not tilt or fall over and require the operator to fold them up, nor will the operator need to press down the armrest seat 31. The operator only needs to pull up the base 21 until the crib is completely folded. Thus, the folding operation of the crib of this utility model is very simple.

[0026] In this embodiment, preferably, in the same handrail assembly 3, the distance L1 between the pivot position of the upper handrail 33 and the column 1 and the edge of the column 1 is smaller than the distance L2 between the pivot position of the lower handrail 32 and the column 1 and the edge of the column 1 (e.g., ...). Figure 1 (As shown). With this setting, In this embodiment, the crib is configured such that when the crib is in a folded state, the opposite sides of the two uprights 1 in the length direction are in contact with each other, and the opposite sides of the two uprights 1 in the width direction are also in contact with each other. This makes the folded crib very small in size, which facilitates packaging, transportation and storage.

[0027] Better, combination Figure 1 , Figure 5 As shown, the armrest assembly 3 also includes two linkage members 34. A vertically extending third elongated hole 313 is provided in the middle of the armrest seat 31, located between two travel holes. Further, the two first elongated holes 311 are symmetrically arranged based on the third elongated hole 313, and the two travel holes are also symmetrically arranged based on the third elongated hole 313. The upper sides of the two linkage members 34 are coaxially pivotally connected to the third elongated hole 313, and their lower sides are respectively pivotally connected to the opposite sides of the two lower armrest rods 32. When the crib is in the unfolded state, the pivotal positions of the two linkage members 34 and the two lower armrest rods 32 are located between the pivotal positions of the two lower armrest rods 32 and the armrest seat 31. That is, assuming the lower armrest rods 32 are pivotally connected to the linkage members 34 via fourth pivots 322, when the crib is in the unfolded state, the two fourth pivots 322 are located between the two third pivots 321.

[0028] During the folding of the crib, as the armrest seat 31 moves downward, the lower armrest bar 32 rotates, pulling the linkage 34 downward, thereby causing the fifth pivot 340 on the upper side of the two linkages 34 to move downward along the third elongated hole 313.

[0029] In this embodiment, the linkage 34 is provided only on the armrest assembly 3 on the short side of the crib. In other embodiments, the linkage 34 is also provided on the armrest assembly 3 on the long side of the crib, that is, the linkage 34 is provided on all four armrest assemblies 3. The armrest assembly 3 in the length direction of the crib is the armrest on the long side, and the armrest assembly 3 in the width direction of the crib is the armrest seat 31 on the short side.

[0030] The armrest assembly 3 along the short side of the crib is equipped with the aforementioned two linkages 34, which indirectly connect the two lower armrests 32, thus preventing the two upper armrests 33 and the two lower armrests 32 from each having four independent free ends on their connection sides with the armrest base 31. In this way, the uprights 1 will not tilt in the width direction of the crib to a point where the operator needs to fold it up, further ensuring the ease of folding the crib.

[0031] Along the length of the crib, the two first bottom tubes 22, which are engaged by a gear structure, limit the tilt of the uprights 1. Therefore, the armrest assembly 3 along the length of the crib does not need to be equipped with the aforementioned linkage 34.

[0032] In this embodiment, preferably, the base support 2 further includes four second base tubes 23, one side of which is pivotally connected to the base 21. When the crib is unfolded, the four second base tubes 23 are located above the four first base tubes 22. That is, the pivot point of the second base tube 23 to the upright 1 is located above the pivot point of the first base tube 22 to the same upright 1, and the pivot point of the second base tube 23 to the base 21 is located above the pivot point of the first base tube 22 to the base 21 on the same side. This arrangement forms a quadrilateral structure between the first base tube 22, the second base tube 23, the upright 1, and the base 21 on the same side. Thus, when the base 21 is pulled upwards to fold the crib, the lower side of each upright 1 is subjected to tension from different positions of the upper and lower base tubes. In this way, the upright 1 will not tilt at an excessive angle, and it is impossible for it to tilt to the ground, thus making it easier to fold the crib.

[0033] In this embodiment, preferably, a handle 24 is also pivotally connected to the base support 2. When the crib is in the unfolded state, the handle 24 rotates to abut against the base 21, thus not interfering with the crib's usable space. When folding the crib, the handle 24 can be rotated to an upright position, and the base 21 can be moved upward by pulling the handle 24. This makes the folding operation more convenient.

[0034] Combination Figure 1 and Figure 9As shown, the base support 2 also includes two bottom support tubes 25, which are arranged opposite each other, and the opposite sides of the two bottom support tubes 25 are pivotally connected to the base 21. When the crib is in the unfolded state, the sides of the two bottom support tubes 25 that are far apart from each other are supported on the ground together with the base 21. This makes the crib more stable in use, and can support the bed board more evenly and firmly, making the child more comfortable in the crib's use space. When the base 21 is pulled up to fold the crib, the two bottom support tubes 25 also rotate and move together to come closer to the base 21.

[0035] To unfold the folded crib, simply press down on the base 21. As the base 21 moves downward, each upright 1 is pushed outward by the first bottom tube 22 and the second bottom tube 23. The outward movement of the upright 1 can also pull the armrest assembly 3 to move and rotate in the unfolded state until the crib is in the unfolded state.

[0036] The above definitions of up, down, front, back, left, and right directions are based on normal usage conditions. That is, the direction where the front wheel is located is front, the direction where the rear wheel is located is back, the direction where the push handle is located is up, and the direction where the front and rear wheels are located is down.

[0037] Those skilled in the art should understand that the terms "upper," "lower," "left," "right," "front," "back," "inner," and "outer" 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 the embodiments of the present invention 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. When the visual observation changes, the above orientation or positional relationship will also change accordingly, and therefore should not be construed as a limitation of the present invention.

[0038] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A crib that can be converted between an unfolded state and a folded state, characterized in that: The crib includes: Four pillars; The base support includes a base and four first bottom tubes. One side of each of the four first bottom tubes is pivotally connected to the base, and the other side is pivotally connected to the lower side of the four columns. At least part of the outer edge of the side of each first bottom tube away from the column is provided with a continuous tooth structure, so that the opposite sides of two opposing first bottom tubes form a gear meshing structure. The four handrail groups each include a handrail base, two oppositely arranged lower handrails, and two oppositely arranged upper handrails. The opposite sides of the two lower handrails of each handrail group are pivotally connected to the handrail base, and the other side is pivotally connected to the upper side of two adjacent columns. The opposite sides of the two upper handrails are pivotally connected to the handrail base and can move relative to the handrail base in the length direction, and the other side is pivotally connected to the upper side of two adjacent columns.

2. The crib according to claim 1, characterized in that: The pivot point of the upper handrail and the column on the same side of each handrail assembly is located above the pivot point of the lower handrail and the same column, and the pivot point of the upper handrail and the handrail seat is located above the pivot point of the handrail and the same handrail seat.

3. The crib according to claim 1 or 2, characterized in that: The upper side of the armrest seat is provided with two first elongated holes and two travel holes. The two first elongated holes are arranged opposite each other in the horizontal direction of the armrest seat. Each travel hole includes a second elongated hole in the horizontal direction and an oblique elongated hole extending downward and towards the column. The two second elongated holes are located between the two first elongated holes. The upper end of the oblique elongated hole is connected to the end of the second elongated hole facing the first elongated hole on the same side. A first pivot and a second pivot pass through the first elongated hole and the travel hole respectively and are pivotally connected to the upper armrest rod.

4. The crib according to claim 3, characterized in that: When the crib is in the unfolded state, the second pivot is located inside the second elongated hole, and the first pivot is also located inside the first elongated hole on the side facing the second elongated hole.

5. The crib according to claim 4, characterized in that: In the same handrail assembly, the distance between the pivot point of the upper handrail and the column and the edge of the column is less than the distance between the pivot point of the lower handrail and the column and the edge of the column.

6. The crib according to claim 4 or 5, characterized in that: The handrail assembly also includes two linkage components. A third elongated hole extending vertically is provided in the middle of the handrail seat. The third elongated hole is located between two stroke holes. The upper sides of the two linkage components are coaxially pivotally connected to the third elongated hole, and the lower sides are pivotally connected to the opposite sides of the two lower handrails, respectively.

7. The crib according to claim 6, characterized in that: When the crib is in the unfolded state, the pivot position of the two linkages and the two lower armrests is located between the pivot position of the two lower armrests and the armrest seat.

8. The crib according to claim 6, characterized in that: The armrests along the length of the crib are equipped with the linkage mechanism, or the linkage mechanism is provided on all four armrests.

9. The crib according to any one of claims 1 to 2, 4 to 5, and 7 to 8, characterized in that: The base support also includes four second base tubes, one side of which is pivotally connected to the base; when the crib is in the unfolded state, the four second base tubes are located on the upper side of the four first base tubes.

10. The crib according to claim 9, characterized in that: A carrying handle is also pivotally connected to the base support.

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