Height-adjustable baby crib

Abstract

A height-adjustable baby crib, comprising a crib body (1) and a bottom support (2), wherein the crib body (1) is connected to the bottom support (2) in a relatively up-and-down movable manner, and a height adjustment mechanism is provided between the crib body (1) and the bottom support (2); and the height adjustment mechanism comprises acting members (4) connected to the bottom support (2), a locking set movably connected to the bottom support (2), and a plurality of fitting portions (11) arranged on the crib body (1) at intervals in an up-down direction. By means of the cooperation of the height adjustment mechanism, there is no need to provide operating components at least partially exposed outside of the baby crib, and the overall height of the baby crib can be adjusted by means of directly moving the crib body up and down, thereby avoiding the problem of the crib body moving downward due to misoperation.

Description

A height-adjustable crib Technical Field

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

[0002] Baby cribs are generally used for children to play and sleep. Some baby cribs have a fixed overall height, while others do. Adjustable baby cribs typically have a height locking mechanism between the upper and lower parts of the crib. An operating component is located on the upper side of the crib, and at least part of the operating component protrudes outside the crib for operation. By driving the part of the operating component that protrudes outside the crib, the height locking mechanism is unlocked and locked. When unlocked, to raise the height, the upper part of the crib is moved upwards; to lower the height, the upper part of the crib is moved downwards.

[0003] However, the above height adjustment method has a major drawback: because at least part of the operating parts are exposed outside the bed, they are easily accidentally touched, which can lead to the height locking mechanism being accidentally unlocked. If the child is still inside the upper part of the bed, the child's weight will cause the upper part of the bed to fall directly down after the height locking mechanism is unlocked due to the accidental operation, which could cause the child inside the bed to be injured. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a height-adjustable crib, which is simple to operate and can completely eliminate the risk of accidents caused by misoperation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A height-adjustable crib includes a crib body and a base support. The crib body is movably connected to the base support, and a height adjustment mechanism is provided between the crib body and the base support. The height adjustment mechanism includes an actuating element connected to the base support, a locking assembly movably connected to the base support, and multiple mating parts spaced vertically on the crib body.

[0007] The actuating element can move up and down relative to the base support between a first position and a second position.

[0008] When the component is in the first position, and the locking group is adapted to the position of any mating part, the locking group

[0009] It can be moved to lock with the mating part to lock the bed body toward the bottom support;

[0010] After the locking group disengages from the lowermost mating part, the bed body, which continues to move upward, can drive the actuator to move upward to the second position, while the locking group remains disengaged from the mating part. After the actuator is in the second position, the bed body moves downward. When it moves to the position where the highest locking group matches the uppermost mating part, the actuator is driven by the bed body to move downward to the first position.

[0011] Preferably, the bed body includes multiple spaced upper columns, the bottom support includes multiple corresponding lower columns, the upper columns are provided with downward-opening receiving cavities, and the upper sides of the lower columns are movably connected to the receiving cavities.

[0012] Preferably, the mating part is a locking hole provided on the wall of the receiving cavity; the locking assembly includes a locking member that is relatively movably connected to the lower column, an elastic member provided between the locking member and the lower column, and a locking part is provided on one side of the locking member; under the action of the elastic member, when the locking member moves relatively until its locking part is engaged in any locking hole, the relative height between the bed body and the base frame is locked.

[0013] Preferably, the lower side of the locking part is set as an inclined surface or / and the bottom wall of the locking hole is set as an inclined surface; the upper end face of the locking part and the upper side wall of the locking hole are configured such that when the locking part is engaged in any locking hole, the cooperation between the upper end face of the locking part and the upper side wall of the locking hole prevents the bed from moving downward.

[0014] Preferably, the lower side of the actuating member is movable vertically and connected to the lower column; and the locking member is provided with a through hole, through which the locking member can be laterally fitted onto the actuating member.

[0015] Preferably, the actuating member has an actuating groove on one side, and the lower sidewall of the actuating groove is a downwardly open inclined surface; when the actuating member is in the first position, the wall portion of the actuating groove between the upper and lower sidewalls is opposite to the inner wall of the locking member's actuating hole and the locking part is aligned with a locking hole; when the actuating member is in the second position, the locking member abuts against the outer wall of the actuating member located on the lower side of the actuating groove.

[0016] Preferably, the bed body is provided with a lower drive unit, and the lower drive unit is located between the outer wall of the lower column and the inner wall of the receiving cavity. Correspondingly, the actuator is connected to a follower, and the follower is at least partially located between the outer wall of the lower column and the inner wall of the receiving cavity. The bed body drives the actuator in the first position to move upward to the second position through the lower drive unit.

[0017] Preferably, the bed body is further provided with an upper drive unit, and the bed body drives the action member in the second position to the first position through the upper drive unit; the upper drive unit is provided on the top wall of the receiving cavity, or the top wall of the receiving cavity is configured as the upper drive unit.

[0018] Preferably, one of the outer wall of the functional member and the inner wall of the corresponding position of the lower column is provided with a positioning boss, and the other is provided with two positioning grooves at intervals for the positioning boss to be engaged; or, one of them is provided with two positioning bosses at intervals, and the other is provided with a positioning groove for either positioning boss to be engaged.

[0019] The bed has a space for infants and young children.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. The overall height of the crib is adjustable, making it easier for parents to care for their children;

[0022] When the crib is not in its highest position, to raise the overall height of the crib, simply move the crib upwards. When the crib is in any other height position, to lower the overall height, simply move the crib upwards until it can't move any further, then move it downwards until it can't move any further, and finally move it upwards to the desired height. In other words, adjusting the overall height of the crib requires no additional operation; simply moving the crib up and down is sufficient. This not only simplifies the operation of adjusting the crib's height but also eliminates the need for any operating parts that are at least partially exposed outside the crib, thus avoiding the problem of the crib moving downwards due to accidental operation of such parts, and consequently preventing child safety issues.

[0023] In normal use, the crib of this invention cannot move downward relative to the lower support column, thus completely eliminating the possibility of the crib falling downward due to misoperation, and thereby completely eliminating the child safety problem caused by this. Attached Figure Description

[0024] Figure 1 is a three-dimensional schematic diagram of the baby bed of this utility model at one height position;

[0025] Figure 2 is an explosion diagram of the baby crib of this utility model;

[0026] Figure 3 is an enlarged schematic diagram of the explosion based on part B in Figure 2;

[0027] Figure 4 is an enlarged schematic diagram of the interface in the AA direction of Figure 1;

[0028] Figure 5 is an enlarged schematic diagram based on part C in Figure 4;

[0029] Figure 6 is an enlarged schematic diagram of the explosion based on Figure 5;

[0030] Figure 7 is a cross-sectional schematic diagram of the components in Figure 4 when the bed frame of the baby crib of this utility model is in the highest position.

[0031] Figure 8 is an enlarged schematic diagram of the driving part and the lower column part of the baby crib when the bed body of this utility model is in the highest position;

[0032] Figure 9 is an enlarged schematic diagram of the explosion based on part D in section 7;

[0033] Figure 10 is an enlarged schematic diagram of the explosion based on part E in section 8;

[0034] Figure 11 is a cross-sectional view of the components in Figure 4 after the crib body of this utility model continues to move upward after reaching its highest position.

[0035] Figure 12 is an enlarged schematic diagram based on part F in Figure 11;

[0036] Figure 13 is an enlarged schematic diagram based on part G in Figure 11;

[0037] Figure 14 is a cross-sectional schematic diagram of the components in Figure 4 moving downward to a certain position in the crib of this utility model.

[0038] Figure 15 is an enlarged schematic diagram based on part H in Figure 14;

[0039] Figure 16 is a schematic diagram of the baby bed of this utility model after the U-shaped footboard is installed.

[0040] Detailed Implementation

[0041] As shown in Figures 1 to 16, this utility model discloses a height-adjustable baby crib, which includes a crib body 1 and a base support 2. The crib body 1 is movably connected to the base support 2, and a height adjustment mechanism is provided between the crib body 1 and the base support 2. The height adjustment mechanism includes an action member 4 connected to the base support, a locking group movably connected to the base support 2, and multiple mating parts 11 arranged vertically and intermittently on the crib body 1.

[0042] The actuating member 4 can move up and down relative to the base support 2 between a first position and a second position. When the actuating member 4 is in the first position, the locking group can move toward the side where the mating part 11 is located. When the locking group is matched with the position of any mating part 11, the locking group can move to lock with the mating part to lock the direction of the bed body 1 moving downward. That is, when the locking group is locked with any mating part 11, the relative height between the bed body 1 and the base support 2 is locked, and the bed body 1 cannot move downward. However, when the bed body 1 moves upward, the mating part 11 can drive the locking group to move relative to the base support 2 and disengage from the locking with the mating part 11. When the bed body 1 moves upward to the next mating part 11 and the locking group is matched, the locking group moves relative to the base support 2 and locks with the mating part 11. During this process, the actuating member 4 is always in the first position.

[0043] After the locking group disengages from the lowermost mating part 11, the bed body 1, which continues to move upward, can drive the actuating member 4 to move upward to the second position. When the locking group is in the second position, it remains disengaged from the mating part 11. In this state, the locking group cannot move towards the side where the mating part 11 is located. Even if the locking group is aligned with the position of any mating part 11, it cannot move towards the side where the mating part 11 is located, thus preventing it from locking with the mating part 11. After the actuating member 4 is in the second position, the bed body 1 moves downward. When the locking group aligns with the highest position of the uppermost mating part 11, the actuating member 4 is driven downward by the bed body 1 to the first position. The highest position, i.e., when the bed body 1 moves downward to align with the uppermost mating part 11, or when the bed body 1 moves downward to a lower position, is required for the actuating member 4 to be driven downward by the bed body 1 to the first position.

[0044] In this embodiment, the bed body 1 includes multiple spaced upper columns 12, the bottom support 2 includes multiple corresponding lower columns 21, the upper columns 12 are provided with a downward-opening receiving cavity 121, and the upper side of the lower columns 21 is movably connected to the receiving cavity 121; the mating part 11 is a locking hole 11 provided on the wall of the receiving cavity 121.

[0045] The locking assembly includes a locking member 31 that is relatively movably connected to the lower column 21, and an elastic member 32 disposed between the locking member 31 and the lower column 21. A locking part 311 is provided on one side of the locking member 31. Under the action of the elastic member 32, the locking member 31 maintains a tendency to move toward the locking hole 11. When the locking member moves relative to the locking part 311 and engages in any locking hole 11, the relative height between the bed body 1 and the base frame is locked.

[0046] The lower side of the locking part 311 is set as an inclined surface or / and the bottom wall of the locking hole 11 is set as an inclined surface 312. When the locking part 311 is engaged in either locking hole 11, when the bed body 1 is moved upward, the locking member 31 is driven to move away from the locking hole 11 by the cooperation between the bottom wall of the locking hole 11 and the lower side of the locking part 311. When the locking part 311 disengages from the locking groove, the height adjustment mechanism unlocks, and the bed body 1 can continue to move upward. Thus, when the height of the bed body 1 needs to be adjusted upward, no additional operation is required; the bed body 1 can be moved upward directly. In this embodiment, the lower side of the locking part 311 is set as an inclined surface 312.

[0047] The upper end face 313 of the locking part 311 and the upper sidewall of the locking hole 11 are configured such that when the locking part 311 is engaged in any locking hole 11, the engagement between the upper end face of the locking part 311 and the upper sidewall of the locking hole 11 prevents the crib 1 from moving downwards. In this embodiment, both the upper end face of the locking part 311 and the upper sidewall of the locking hole are straight surfaces. Therefore, after the locking part 311 is engaged in any locking hole 11, even if the crib 1 is pressed down, the locking part 31 cannot move away from the locking hole 11 due to the straight-face engagement between the upper end face of the locking part 311 and the upper sidewall of the locking hole 11, thus preventing the crib 1 from moving downwards and ensuring the safety of the crib in use. In other embodiments, the upper end face of the locking part 311 and the upper sidewall of the locking hole can also have other mutually engaging shapes, as long as the above-mentioned technical objective is achieved.

[0048] The lower column 21 is provided with a transverse receiving groove 211, and the transverse receiving groove 211 is locked in orientation.

[0049] The opening is located on one side of the hole 11; one side of the locking member 31 is movably connected to the transverse receiving groove 211, and as the locking member 31 moves laterally, the locking part 311 can be engaged into the locking hole 11 or disengaged from the locking groove. In this embodiment, the elastic member 32 is set as a compression spring and is disposed in the transverse receiving groove 211, located between the side of the locking member 31 facing away from the locking hole 11 and the wall portion of the corresponding side of the transverse receiving groove 211.

[0050] The lower side of the actuating member 4 is movable vertically and connected to the lower column 21; and the locking member 31 is provided with a vertically penetrating actuating hole 310, through which the locking member 31 can be laterally fitted onto the actuating member 4. In this way, the actuating member 4 can also move vertically relative to the locking member 31.

[0051] Preferably, the actuating member 4 is provided with an actuating groove 41 on one side, and the lower side wall 410 of the actuating groove 41 is set as a downwardly open inclined surface; when the wall portion 412 of the actuating groove 41 located between the upper side wall and the lower side wall 410 is opposite to the inner wall of the actuating hole of the locking member 31, the actuating member 4 is in the first position; and in this state, if the locking part 311 of the locking member is exactly aligned with a locking hole 11, under the action of the elastic member 32, the locking member 31 can move toward the side where the locking hole 11 is located until the locking part 311 is inserted into the locking hole 11 and the relative height between the bed body 1 and the bottom support 2 is locked. Preferably, at this time, the inner wall of the locking member 31's actuating hole abuts against the wall portion 412 of the actuating groove 41 located between the upper and lower side walls, thus preventing the locking member 31 from moving further towards the side where the locking hole is located. If the locking hole 11 is not aligned with any locking hole 11, the end of the locking part 311 will abut against the inner wall of the receiving cavity 121 under the action of the elastic member 32. When the actuating member 4 moves upward, the inclined surface can push the locking member 31 to move away from the side where the locking hole 11 is located.

[0052] When the actuating member 4 moves upward until its outer wall, located below the actuating groove 41, abuts against the locking member 31, the actuating member 4 is in the second position. In this position, the locking member 31 moves away from the locking hole to disengage from the actuating groove 41. Under the action of the elastic member 32, the locking member 31 and the outer wall of the actuating member 4 remain in this abutting state. In this state, the locking member 31 is also fully moved into the receiving cavity 121. Without external force, the actuating member 4 cannot move up or down, and the locking member 31 cannot move towards the locking hole 11. Thus, when the actuating member 4 is in the second position, the bed body 1 can move downward without worrying about the locking part 311 of the locking member 31 getting stuck in any locking hole 11.

[0053] The bed body 1 is provided with a lower drive unit 13, and the bed body 1 drives the action member 4, which is in the first position, to move upward to the second position through the lower drive unit 13.

[0054] In this embodiment, the lower drive part 13 is located between the outer wall of the lower column 21 and the inner wall of the receiving cavity 121; correspondingly, a follower 44 is connected to the actuating member 4, and the follower 44 is at least partially located between the outer wall of the lower column 21 and the inner wall of the receiving cavity 121; the follower 44 and the lower drive part 13 are configured such that when the locking part 311 of the locking member 31 is engaged in the uppermost locking hole 11, the lower drive part 13 abuts against the lower side of the follower 44, or the lower drive part 13 and the part opposite to the follower 44 are located at intervals on the lower side of the follower 44. With this configuration, when the locking part 311 of the locking member 31 is engaged in the uppermost locking hole 11, pulling the bed body 1 upward will cause the lower drive part 13 to drive the driven member 44 upward, thereby driving the actuating member 4 upward until the actuating member 4 is in the second position. That is, the bed body 1 drives the driven member 44 through the lower drive part 13 to drive the actuating member 4, which is in the first position, upward to the second position.

[0055] Preferably, the lower drive part 13 may protrude from the inner wall of the receiving cavity 121 (e.g., through integral molding or other known and feasible connection methods). In this embodiment, a bottom connector 130 is connected to the lower side of the upper column 12, and the lower drive part 13 extends upward from the upper end of the bottom connector 130 and extends into the lower side of the receiving cavity 121. That is, the lower drive part 13 is part of the bottom connector 130. When the bed body 1 moves up and down, the bottom connector 130 moves up and down along with it, thereby causing the lower drive part 13 to move up and down as well.

[0056] The base support 2 has a vertically extending first elongated hole 22, and the actuating member 4 has a first circular hole 45. A first connecting shaft 44 passes through the first elongated hole 22 and the first circular hole 45, thereby connecting the base support 2 and the actuating member 4 and allowing the actuating member 4 to move vertically relative to the base support 2. At least one end of the first connecting shaft 44 extends outside the base support 2 and is located between the outer wall of the base support 2 and the inner wall of the receiving cavity 121. The first connecting shaft 44 is configured as the driven member. When the bed body 1 moves upward until the lower drive part 13 contacts the first connecting shaft 44 and continues to move upward, it can drive the first connecting shaft 44 and the actuating member 4 to move upward relative to the base support 2 together. That is to say, the first connecting shaft is configured as the driven member 44.

[0057] In this embodiment, the lower drive unit 13 is recessed in the direction corresponding to the first connecting shaft 44, providing a drive groove 131. When the bed 1 moves upward until the bottom wall of the drive groove 131 contacts the first connecting shaft 44, and then continues to move upward, the first connecting shaft 44 and the actuating member 4 can be driven to move upward relative to the bottom support 2. In other embodiments, the drive groove 131 may not be provided, and the lower drive unit 13 can be configured in other suitable shapes. As long as it contacts the first connecting shaft 44 and then continues to move the bed 1 upward, the first connecting shaft 44 and the actuating member 4 can be driven to move upward relative to the bottom support 2. The specific shape of the lower drive unit 13 can be reasonably set according to operational needs.

[0058] Because the first connecting shaft 44 passes through the first elongated hole 22, when the first connecting shaft 44 moves upward and contacts the top wall of the first elongated hole 22, the first connecting shaft 44 cannot move upward any further, and thus the bed body 1 cannot move upward any further. In this way, the maximum height that the bed body 1 can move upward can be limited, and the bed body 1 can be prevented from moving upward without restriction and detaching from the base support 2. Moreover, when the first connecting shaft 44 abuts against the bottom wall of the first elongated hole 22, the first connecting shaft 44 cannot move downward any further, thus also limiting the distance that the bed body 1 can move downward.

[0059] Preferably, the actuating member 4 is provided with a second elongated hole 46 extending vertically, and the first elongated hole 22 is located below the second elongated hole 46; correspondingly, the base support 2 is provided with a second circular hole 23, and a second connecting shaft 47 passes through the second elongated hole 46 and the second circular hole 23. The cooperation between the first elongated hole 22 and the first circular hole 45, plus the cooperation between the second elongated hole 46 and the second circular hole 23, makes the connection between the actuating member 4 and the base support 2, which can move vertically relative to each other, more stable, and the actuating member 4 moves vertically more smoothly and is less prone to deviation. If the maximum vertical movement distance of the bed body 1 relative to the base support 2 cannot be limited by the first connecting shaft 44 and the first elongated hole 22, the maximum vertical movement distance of the bed body 1 relative to the base support 2 can also be limited by the abutment of the second connecting shaft 47 against the top and bottom walls of the second elongated hole 46, or both can cooperate to limit the maximum vertical movement distance of the bed body 1 relative to the base support 2.

[0060] The bed body 1 is also provided with an upper drive unit 14, which drives the action member 4, which is in the second position, to the first position through the upper drive unit 14.

[0061] The upper drive unit 14 is disposed on the top wall of the receiving cavity 121 and is positioned facing the actuating member 4. The upper drive unit 14 may be integrally formed on the top wall of the receiving cavity, or it may be connected to the top wall of the receiving cavity 121 in any known and feasible manner. Alternatively, the top wall of the receiving cavity may be configured as the upper drive unit 14. When the actuating member 4 is in the second position, the upper end of the actuating member 4 may extend beyond the upper end of the lower column, may be flush with the upper end of the lower column, or may be located inside the lower column. Correspondingly, the upper drive unit 14 is adapted to achieve the aforementioned driving purpose.

[0062] In this embodiment, the upper driving part 14 can move downward to the second position along with the downward moving bed body 1 driving member 4. In other embodiments, the upper driving part 14 can also move downward along with the downward moving bed body 1 driving member 4 until its outer wall located on the lower side of the action groove 41 just disengages from the locking member 31. As soon as the outer wall of the member 4 disengages from the locking member 31, the locking member 31 will move towards the side where the locking hole 11 is provided under the action of the elastic member 32, and drive the member 4 downward through the lower side wall 410 of the action groove 41, which is set as an inclined surface.

[0063] In this embodiment, preferably, the upper sidewall 411 of the function groove 41 is also configured as an upwardly open sloping surface. This configuration makes it easier for the locking member 31 to move better into the function groove 41 from the side facing the function groove 41.

[0064] Preferably, one of the outer wall of the actuating member 4 and the inner wall of the corresponding position of the lower column 21 is provided with a positioning boss 48, and the other is provided with two positioning grooves 24 at intervals for the positioning boss 48 to engage; or, one of them is provided with two positioning bosses 48 at intervals, and the other is provided with a positioning groove 24 for either positioning boss 48 to engage. When the positioning boss 48 is engaged in the positioning groove 24, the relative position of the actuating member 4 with respect to the connecting seat can be made more stable. In this embodiment, the outer wall of the actuating member 4 is provided with a positioning boss 48, and the inner wall of the corresponding position of the lower column 21 is provided with two positioning grooves 24 at intervals. The engagement of the positioning groove 24 and the positioning boss 48 can be set in any suitable position, as long as it does not interfere with the actuating groove 41 and the inner wall of the locking member 31 facing the actuating groove 41.

[0065] The bed frame 1 also includes an upper frame 15, to which the upper sides of the multiple upper columns 12 are connected. In this embodiment, the upper frame 15 is square, and the upper columns 12 are arranged in four groups, with the upper sides of the four groups of upper columns 12 connected to one corner of the square upper frame 15 respectively. The lower columns 21 are also arranged in four groups. Preferably, the base support 2 also includes two sets of base support members 25, with both sides of each set of base support members 25 connected to the lower ends of two sets of lower columns 21. Each base support member 25 is also provided with wheels 26 on its lower side for easy movement of the crib. In other embodiments, the base support 2 may not be provided, and wheels 26 may be directly provided on the lower side of each column; or, neither the base support 2 nor the wheels 26 may be provided; or, wheels 26 may be provided on the lower sides of two sets of columns on one side, while wheels 26 may not be provided on the lower sides of two sets of columns on the other side.

[0066] In another embodiment, the upper frame 15 can also be of other suitable shapes, the number of upper columns 12 can be adjusted adaptively, and the connection position between the upper columns 12 and the upper frame 15 can also be adjusted adaptively; correspondingly, the shape of the base support 2 and the number of lower columns 21 can also be adjusted adaptively; or, the upper frame 15 can also be of any suitable shape, the upper columns 12 can be set in two groups, and the upper sides of the two groups of upper columns 12 are respectively connected to the relative positions of the upper frame 15, and correspondingly, the number of lower columns 21 of the base support 2 can also be set in two groups.

[0067] The bed frame 1 is provided with a space for infants and young children. Specifically, a base support frame 16 is connected to the lower side of the bed frame 1, and the base support frame 16 is connected to the lower side of the upper column 12. A seat cover is connected to the bed frame 1 and the base support frame 16, so that the bed frame 1, the base support frame 16 and the seat cover together form a usable space. When in use, a mat can be placed on the base support frame 16. The connection between the base support frame 16 and the bed frame 1 and the seat cover can be any known and feasible technology, and is not the inventive point of this utility model, so it will not be described in detail here.

[0068] When the crib is in normal use, the locking part 311 of the locking member 31 is inserted into one of the locking holes 11, thereby locking the crib body 1 at that height position. The wall portion 412 of the actuating groove 41 located between the upper and lower side walls abuts against the locking member 31. Simultaneously, the positioning boss 48 on the actuating member 4 also engages with the lower positioning groove 24, thus making the crib more stably locked at that height position. In this state, the second connecting shaft 47 contacts the top wall of the second elongated hole 46, and the first connecting shaft 44 contacts the bottom wall of the first elongated hole 22.

[0069] Because this new baby crib adopts the above design, when the baby crib is not in the highest position, that is, when the locking member is not locked with the lowest locking hole, the operation method to adjust the overall height of the baby crib is as follows:

[0070] Simply pull the bed body 1 upwards. Because the lower side of the locking part 311 is inclined, when the bed body 1 moves upwards, the bottom wall of the locking hole 11 will push the inclined surface of the locking part 311 (as shown in Figures 5 and 6), thereby causing the locking member 31 to move into the upper column 12. When the locking member 31 moves into the upper column 12, it will compress the compression spring. When the locking member 31 moves to the point where its locking part 311 disengages from the locking hole 11, the locking device unlocks. Continuing to move the bed body 1 upwards, before the locking member 31 aligns with the next locking hole 11, the end face of the locking part 311 contacts the inner wall of the upper column 12. When the locking part 311 aligns with the next locking hole 11, under the restoring force of the compression spring, the locking device unlocks. When component 31 moves outward, the locking part 311 inserts into the corresponding locking hole 11, and the locking device is locked again. This locks the crib 1 at the height relative to the lower support 21, thus locking the entire crib at that height. To further increase the overall height of the crib, simply move the crib 1 upward to the desired height. The locking part 311 will then insert into the corresponding locking hole 11 under the action of the compression spring, locking the entire crib at that height. This continues until the locking part 311 of the locking component 31 locks with the locking hole 11 at the bottom of the crib 1. At this point, the crib 1 is at its highest relative to the lower support 21, and the crib is locked at its highest position. During this adjustment process, only the states of the locking component 31 and the elastic component 32 change; the state of the actuating component 4 remains unchanged, always in the first position. When the bed body 1 is moved upwards, causing the locking part 311 to disengage from the locking hole 11 at a certain height, if the bed body 1 is moved downwards, the locking part 311 will move again to lock with the locking hole 11 at that height when the locking hole 11 at that height aligns with the locking part 311. That is to say, during this process, the bed body 1 cannot move downwards until the adjacent locking hole aligns with the locking part 311, so the bed body 1 cannot be adjusted downwards, but can only be adjusted upwards.

[0071] When the crib is at any height other than the lowest position, the crib body 1 cannot be moved directly downwards because the top wall of the locking hole 11 and the top wall of the locking part 311 are both straight surfaces. The cooperation between the straight surfaces makes it impossible to push the locking part 31 into the upper column 12, so the crib body 1 cannot be moved downwards.

[0072] To lower the overall height of the crib, that is, to adjust crib 1 down to the target height, follow these three steps:

[0073] Step 1: Keep moving the bed upwards until it can't be moved any higher.

[0074] As the bed body 1 continues to move upwards, it will first reach its highest position in its normal state (at this height, the locking part 311 engages with the lowest locking hole 11 of the bed body 1, as shown in Figures 7 to 10). Continuing to move the bed body upwards, the bottom wall of the lowest locking hole drives the locking member 31 to move into the transverse receiving groove and disengage from the locking hole, allowing the bed body 1 to move upwards past this highest position. When the bed body 1 moves upwards until the bottom wall of the driving groove 131 on its lower driving part 13 contacts the first connecting shaft 44, as the bed body 1 continues to move upwards, the bottom wall of the driving groove 131 pushes the first connecting shaft 44 upwards together, thereby causing the actuating member 4 connected to the first connecting shaft 44 to move upwards relative to the lower column 21. Because the lower side wall of the actuating member 4's actuating groove 41 is set as an inclined surface, when the actuating member 4 moves upwards, through the action of this inclined surface, the locking member 31 is pushed to continue moving away from the locking hole 11, further compressing it. The compression spring; when the bed body 1 moves upward until the first connecting shaft 44 contacts the top wall of the elongated hole on the lower column 21, the bed body 1 can no longer move upward, and the action member 4 is in the second position; in this position, the locking member 31 is also completely disengaged from the action groove 41, and the lower side of the inner wall of the transverse receiving groove of the locking member 31 abuts against the outer wall of the action member 4 located below the action groove 41; under the action of the elastic member 32, the lower side of the inner wall of the action member 4 abuts against the outer wall of the action member 4, so the action member 4 will not fall down, and at this time the positioning boss 48 on the action member 4 has disengaged from the lower positioning groove 24 and entered the upper positioning groove 24 as the action member 4 moves upward, so that the action member 4 is more stably positioned in the second position, so the locking member 31 is also positioned in this state and cannot move to the side where the locking hole 11 is located, that is, the locking member 31 is kept in the state of being disengaged from the locking hole 11 (as shown in Figures 11 to 13).

[0075] Step 2: Move bed 1 downwards until it can no longer be moved downwards.

[0076] Because the locking member 31 is positioned by the actuating member 4 in the second position in a state of disengagement from the locking hole 11, the bed body 1 can be moved downwards. During the downward movement of the bed body 1, before the upper end of the actuating member 4 contacts the upper drive unit 14, the relative positions of the actuating member 4, the elastic member 31, and the locking member 31 will not change. Therefore, even if the locking member 31 is aligned with the locking hole 11, the locking member 31 cannot move toward the locking hole and lock with the locking hole 11, thus not causing any obstruction to the downward movement of the bed body 1. The bed body 1 can move downwards without any obstruction. After the upper end of the actuating member 4 contacts the upper driving part 14 (as shown in Figures 14 and 15), the bed body 1 continues to move downward, and the upper driving part 14 will press down on the actuating member 4, thereby driving the actuating member 4 to move downward. When the bed body 1 moves downward to the point where it can no longer move downward, the actuating member 4 also moves downward until its actuating groove 41 is located in the position where the wall portion 412 between the upper side wall and the lower side wall is again opposite to the locking member 31, that is, the actuating member 4 moves to the first position. In this position, under the action of the elastic member 32, the locking member 31 can move in the direction of the locking hole 11; and at this time, the positioning boss 48 on the actuating member 4 is once again engaged in the next positioning groove 24.

[0077] In this embodiment, preferably, the crib is configured such that when the crib body 1 moves downward to its lowest possible position, the locking part 311 of the locking member 31 is aligned with the uppermost locking hole 11 of the upper column 12. Thus, under the action of the elastic member 32, the locking member 31 can move until the locking part 311 is inserted into the uppermost locking hole 11 of the upper column 12. That is, when the crib body 1 moves downward to its lowest possible position, the crib body 1 is locked at the lowest height setting. This configuration makes the adjustment operation more intuitive.

[0078] In other embodiments, when the bed 1 moves downward to the point where it can no longer move downward, the locking part 311 is aligned with the position above the uppermost locking hole 11 of the bed 1. Thus, when the bed 1 moves downward to the point where it can no longer move downward, as long as the bed 1 is moved upward, the locking part 311 will engage with the uppermost locking hole 11 of the bed 1 under the action of the elastic member 32.

[0079] In other words, when the crib 1 moves downwards to its lowest point, the locking part 311 must either be aligned with the uppermost locking hole 11 of the upper post 12 or with the wall above the uppermost locking hole 11 of the crib 1; it cannot be located below the position of the uppermost locking hole 11 of the upper post 12. This ensures that the height adjustment of the crib will not miss any locking hole 11, i.e., it will not miss any height setting.

[0080] Step 3: Move the bed frame 1 upwards to the target height.

[0081] Move the crib 1 directly upwards to the target height position, as described above for adjusting the overall height of the crib. Before the crib 1 is moved to the target height position, whenever the locking member 31 aligns with any locking hole 11, the locking part 311 will engage in the locking hole 11. Continue to pull the crib 1 upwards, and the bottom wall of the locking hole 11 will drive the locking member 31 to move upwards into the column 12 by driving the inclined surface on the lower side of the locking part 311. When the crib 1 is moved upwards to the target height position, under the action of the elastic member 32, the locking part 311 engages in the locking hole 11 at the corresponding height position, and the crib 1 is locked at that height position, that is, the entire crib is locked at that height.

[0082] As described above, under normal use, i.e., when the locking part 311 is engaged in one of the locking holes 11, and when the crib is not in its highest position (i.e., the locking part 311 is engaged in any locking hole 11 other than the lowest one), to raise the overall height of the crib, simply move the crib body 1 upwards. Regardless of the crib's height position or which locking hole 11 the locking part 311 is engaged in, to lower the overall height of the crib, simply move the crib body 1 upwards until it can no longer be moved upwards, then downwards until it can no longer be moved downwards, and finally upwards to the desired height. In other words, adjusting the overall height of the crib requires no additional operation; simply moving the crib body 1 up and down is sufficient. This design not only simplifies adjusting the overall height of the crib but also eliminates the need for any operating components that are partially exposed outside the crib, thus preventing the crib from falling down due to accidental operation of these components. Furthermore, under normal use, the crib cannot move downwards relative to the base support 2 regardless of which locking hole 11 the locking part 311 is engaged with, completely preventing the crib from falling down due to accidental operation and thus eliminating any safety issues for the child. This significantly improves the safety of the crib.

[0083] As shown in Figure 13, preferably, the crib of this invention also includes two U-shaped tailplates 17 connected to the outer sides of both sides, and the two uprights on the same side are located within one U-shaped tailplate 17. With this arrangement, the U-shaped tailplates 17 completely cover the locking holes 11 of the upper uprights 12, thereby making the height adjustment of the crib of this invention safer.

[0084] The connection between the U-shaped tail plate 17 and the side frame can be any known and feasible structure, and its specific connection method is not the focus of this utility model, so it will not be described in detail here.

[0085] Those skilled in the art should understand that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," "horizontal," and "vertical" indicate the orientation or positional relationship based on the orientation or positional relationship shown in Figure 1. 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.

[0086] 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.

[0087] 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 highly adjustable crib, characterized by: It includes a bed frame and a base support. The bed frame is movably connected to the base support, and a height adjustment mechanism is provided between the bed frame and the base support. The height adjustment mechanism includes an action member connected to the base support, a locking group movably connected to the base support, and multiple mating parts arranged vertically and intermittently on the bed frame. The actuating member can move up and down relative to the bottom support between a first position and a second position. When the actuating member is in the first position and the locking group is adapted to the position of any mating part, the locking group can move to lock with the mating part to lock the downward movement of the bed. After the locking group disengages from the lowermost mating part, the bed body, which continues to move upward, can drive the actuator to move upward to the second position, while the locking group remains disengaged from the mating part. After the actuator is in the second position, the bed body moves downward. When it moves to the position where the highest locking group matches the uppermost mating part, the actuator is driven by the bed body to move downward to the first position.

2. The highly adjustable crib of claim 1, wherein: The bed frame includes multiple spaced upper columns, and the bottom support includes multiple corresponding lower columns. Each upper column has a downward-opening receiving cavity, and the upper side of each lower column is movably connected to the receiving cavity.

3. The height-adjustable crib of claim 2, wherein: The mating part is a locking hole provided on the cavity wall; the locking assembly includes a locking member that is relatively movably connected to the lower column, an elastic member provided between the locking member and the lower column, and a locking part is provided on one side of the locking member; under the action of the elastic member, when the locking member moves to the point where its locking part is engaged in any locking hole, the relative height between the bed body and the base frame is locked.

4. The height-adjustable crib of claim 3, wherein: The lower side of the locking part is set as an inclined surface or / and the bottom wall of the locking hole is set as an inclined surface; the upper end face of the locking part and the upper side wall of the locking hole are configured such that when the locking part is engaged in any locking hole, the cooperation between the upper end face of the locking part and the upper side wall of the locking hole prevents the bed from moving downward.

5. The highly adjustable crib of any of claims 3-4, wherein: The lower side of the actuating member can be moved up and down relative to the lower column; and the locking member is provided with an actuating hole that passes through the upper and lower parts, and the locking member can be laterally fitted onto the outside of the actuating member through the actuating hole.

6. The height-adjustable crib of claim 5, wherein: The actuating member has an actuating groove on one side, and the lower sidewall of the actuating groove is a downwardly open sloping surface; when the actuating member is in the first position, the wall portion of the actuating groove between the upper and lower sidewalls is opposite to the inner wall of the locking member's actuating hole and the locking part is aligned with a locking hole; when the actuating member is in the second position, the locking member abuts against the outer wall of the actuating member located on the lower side of the actuating groove.

7. The highly adjustable crib of claim 2 or 3 or 4 or 6, wherein: The bed body is provided with a lower drive unit, which is located between the outer wall of the lower column and the inner wall of the receiving cavity. The actuator is connected to a follower, which is at least partially located between the outer wall of the lower column and the inner wall of the receiving cavity. The bed body drives the actuator in the first position to move upward to the second position through the lower drive unit.

8. The height-adjustable crib of claim 7, wherein: The bed body is also provided with an upper drive unit, which drives the working member in the second position to the first position through the upper drive unit; the upper drive unit is provided on the top wall of the receiving cavity, or the top wall of the receiving cavity is configured as the upper drive unit.

9. The highly adjustable crib of any of claims 1-4, 6, 8, wherein: Of the two components, the outer wall of the functional member and the inner wall of the corresponding position of the lower column, one is provided with a positioning boss, and the other is provided with two positioning grooves at intervals, which can be engaged by the positioning boss; or, one is provided with two positioning bosses at intervals, and the other is provided with a positioning groove that can be engaged by either positioning boss.

10. The highly adjustable crib of any of claims 1-4, 6, 8, wherein: The bed has a space for infants and young children.

11. The highly adjustable crib of claim 9, wherein: The bed has a space for infants and young children.

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