Baby crib with adjustable height

Abstract

The utility model discloses a height-adjustable crib which comprises a crib body and a bottom support, the crib body can be connected to the bottom support in a relative up-and-down moving mode, and a height adjusting mechanism is arranged between the crib body and the bottom support. The height adjusting mechanism comprises an acting piece connected to the bottom support, a locking set movably connected to the bottom support and a plurality of matching parts arranged on the crib body at intervals in the vertical direction, and the overall height of the crib can be adjusted through matching of the height adjusting mechanism. Moreover, the overall height of the baby crib can be adjusted only by directly moving the crib body up and down without any other additional operation, so that the operation of adjusting the overall height of the baby crib is simple, and an operation part at least partially exposed outside the baby crib is not required to be arranged for operation. Therefore, the problem of downward movement of the bed body caused by misoperation of the components is avoided, and the safety problem of children caused by the downward movement of the bed body is further avoided.

Description

Technical Field

[0001] The utility model relates to the field of infant products, in particular to a height-adjustable baby crib. Background Art

[0002] Cribs are generally used for children to play and sleep. The overall height of some cribs cannot be adjusted, while some can be adjusted. The general setting of adjustable cribs is that a height locking mechanism is provided between the upper and lower parts of the bed, and then an operating component is provided on the upper side of the bed. In order to be able to operate, the operating component is at least partially exposed outside the bed. In this way, by driving the part of the operating component exposed outside the bed, the unlocking and locking of the height locking mechanism is controlled. When unlocked, to adjust it higher, the upper part of the bed is moved upward, and to adjust it lower, the upper part of the bed is moved downward.

[0003] However, the above-mentioned height adjustment method has a major disadvantage. Because the operating components are at least partially exposed outside the bed, they are easily accidentally touched and may cause the height locking mechanism to be unlocked by mistake. If a child is still in the upper part of the bed, after the height locking mechanism is unlocked by mistake, the weight of the child will cause the upper part of the bed to fall directly downward, thereby causing injury to the child in the bed. Utility Model Content

[0004] The purpose of the present invention is to overcome the above-mentioned disadvantages and provide a baby bed with adjustable height, that is, the height adjustment operation is simple and the height adjustment can be completely prevented from being caused by misoperation.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0006] A height-adjustable baby crib comprises a bed body and a bottom support, wherein the bed body is connected to the bottom support so as to be relatively movable up and down, and a height adjustment mechanism is provided between the bed body and the bottom support, wherein the height adjustment mechanism comprises an actuating member connected to the bottom support, a locking group movably connected to the bottom support, and a plurality of mating portions spaced apart vertically on the bed body;

[0007] The action member can move up and down between a first position and a second position relative to the bottom bracket. When the action member is in the first position and the locking group is adapted to the position of any matching portion, the locking group can move to lock with the matching portion to lock the bed toward the bottom bracket.

[0008] After the locking group is unlocked from the lowest matching part, the bed body that continues to move upward can drive the action member to move upward to the second position, and the locking group remains in a state of being unlocked from the matching part; after the action group is in the second position, the bed body is moved downward, and when it moves to the position where the highest point of the locking group is matched with the uppermost matching part, the action member is driven by the bed body to move downward to the first position.

[0009] Preferably, the bed body includes a plurality of upper columns arranged at intervals, the bottom bracket includes a plurality of corresponding lower columns, the upper columns are provided with a accommodating cavity opening downward, and the upper sides of the lower columns are connected to the accommodating cavity so as to be relatively movable up and down.

[0010] Preferably, the mating portion is a locking hole provided on the wall of the accommodating cavity; the locking group includes a locking member relatively movably connected to the lower column, an elastic member provided between the locking member and the lower column, and a locking portion 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 portion is engaged in any locking hole, the relative height of the bed body and the base frame is locked.

[0011] Preferably, the lower side surface of the locking portion is set as a slope and / or the bottom wall of the locking hole is set as a slope; the upper end surface of the locking portion and the upper side wall of the locking hole are set as follows: when the locking portion is inserted into any locking hole, the cooperation between the upper end surface of the locking portion and the upper side wall of the locking hole prevents the bed from moving downward.

[0012] Preferably, the lower side of the action member can be relatively moved up and down and connected to the lower column; and the locking member is provided with an action hole running through the upper and lower parts, and the locking member can be relatively moved laterally and sleeved outside the action member through the action hole.

[0013] Preferably, an action groove is provided on one side of the action member, and the lower side wall of the action groove is provided as an inclined surface opening downward; when the action member is in the first position, the wall portion of the action groove located between the upper side wall and the lower side wall is opposite to the inner wall of the action hole of the locking member and the locking portion is aligned with a locking hole; when the action member is in the second position, the locking member abuts against the outer wall of the action member located on the lower side of the action groove.

[0014] Preferably, a lower driving part is provided on the bed body, and the lower driving part is located between the outer wall of the lower column and the inner wall of the accommodating cavity. Correspondingly, a follower is connected to the action member, and the follower is at least partially located between the outer wall of the lower column and the inner wall of the accommodating cavity; the bed body drives the action member in the first position to move upward to the second position through the lower driving part.

[0015] Preferably, the bed is further provided with an upper driving part, and the bed drives the acting member in the second position to the first position through the upper driving part; the upper driving part is provided on the top wall of the accommodating cavity, or the top wall of the accommodating cavity is provided as the upper driving part.

[0016] Preferably, one of the outer wall of the action member and the inner wall at the corresponding position of the lower column is provided with a positioning boss, and the other is provided with two upper and lower positioning grooves for the positioning boss to be snapped into; or, one of the two upper and lower positioning bosses is provided with a positioning groove for any positioning boss to be snapped into.

[0017] The bed body is provided with a space for infants and young children to use.

[0018] The beneficial effects of the utility model are:

[0019] 1. The overall height of the crib can be adjusted, making it more convenient for parents to look after their children;

[0020] When the crib is in a state other than the highest gear position, if the overall height of the crib needs to be raised, it is only necessary to directly move the bed upwards; when the crib is in any other gear height position other than the lowest gear position, if the overall height of the crib needs to be lowered, it is only necessary to move the bed upwards until it cannot be moved upwards any further, then move the bed downwards until it cannot be moved downwards any further, and then move the bed upwards again to the desired height position. That is, if the overall height of the crib of the utility model needs to be adjusted, no other additional operations are required, and it is only necessary to directly move the bed upwards or downwards. In this way, not only is the operation of adjusting the overall height of the crib simple, but there is also no need to provide operating components that are at least partially exposed outside the crib for operation, thereby avoiding the problem of the bed moving downwards due to misoperation of the components, and thus avoiding the safety problems of the child caused by this.

[0021] When the baby crib of the present invention is in normal use, the bed body cannot move downward relative to the lower column, thereby completely preventing the bed body from falling down due to misoperation, and further completely eliminating the safety problems of the child caused by this. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the baby crib of the utility model at one height position;

[0023] Figure 2 This is an exploded schematic diagram of the baby crib of the present invention;

[0024] Figure 3 Based on Figure 2 A magnified diagram of the explosion in part B;

[0025] Figure 4 Based on Figure 1 Enlarged schematic diagram of the interface in the AA direction;

[0026] Figure 5 Based on Figure 4 A magnified schematic diagram of part C;

[0027] Figure 6 Based on Figure 5 A magnified diagram of the explosion;

[0028] Figure 7 for Figure 4 A schematic cross-sectional view of the components in the crib of the present invention when the bed is in the highest position;

[0029] Figure 8 It is an enlarged schematic diagram of the lower driving part and the lower column part when the bed body of the baby crib of the present invention is in the highest position;

[0030] Figure 9 This is an enlarged diagram of the explosion according to Part D in 7;

[0031] Figure 10 This is an enlarged diagram of the explosion according to Part E in 8;

[0032] Figure 11 for Figure 4 A schematic cross-sectional view of the components in the crib of the present invention after the bed body continues to move upward after being in the highest position;

[0033] Figure 12 Based on Figure 11 A magnified schematic diagram of part F;

[0034] Figure 13 Based on Figure 11 A magnified schematic diagram of part G in the middle;

[0035] Figure 14 for Figure 4 A schematic cross-sectional view of the components in the crib of the present invention when the bed is moved downward to a certain position;

[0036] Figure 15 Based on Figure 14 A magnified schematic diagram of part H in the middle;

[0037] Figure 16 This is a schematic diagram of the baby crib of the present invention after a U-shaped footboard is provided. DETAILED DESCRIPTION

[0038] like Figures 1 to 16As shown, the utility model discloses a height-adjustable baby crib, which includes a bed body 1 and a bottom bracket 2. The bed body 1 is connected to the bottom bracket 2 so as to be relatively movable up and down, and a height adjustment mechanism is provided between the bed body 1 and the bottom bracket 2. The height adjustment mechanism includes an action member 4 connected to the bottom bracket, a locking group movably connected to the bottom bracket 2, and a plurality of matching parts 11 provided on the bed body 1 at intervals up and down.

[0039] The operating member 4 can move up and down between a first position and a second position relative to the bottom bracket 2. When the operating member 4 is in the first position, the locking group can move toward the side where the matching portion 11 is located. When the locking group is adapted to the position of any matching portion 11, the locking group can move to lock with the matching portion to lock the direction in which the bed body 1 moves downward; that is, when the locking group is locked with any matching portion 11, the relative height of the bed body 1 and the bottom bracket 2 is locked, and the bed body 1 cannot move downward. However, when the bed body 1 is moved upward, the matching portion 11 can drive the locking group to move relative to the bottom bracket 2 and disengage from the lock with the matching portion 11. When the bed body 1 moves upward to the next matching portion 11 and adapts to the position of the locking group, the locking group moves relative to the bottom bracket 2 and locks with the matching portion 11, and during this process, the operating member 4 is always in the first position.

[0040] After the locking group is unlocked from the lowest matching part 11, the bed body 1 that continues to move upward can drive the action member 4 to move upward to the second position. When the locking group is in the second position, the locking group remains in a state of being unlocked from the matching part 11. In this state, the locking group cannot move toward the side where the matching part 11 is located. Even if the locking group is adapted to the position of any matching part 11, the locking group cannot move toward the side where the matching part 11 is located, and thus cannot be locked with the matching part 11. After the action member 4 is in the second position, the bed body 1 is moved downward. When the bed body 1 is moved to the highest position where the locking group is adapted to the position of the top matching part 11, the action member 4 is driven downward by the bed body 1 to move to the first position. The highest position refers to when the bed body 1 moves downward to the position where the locking group is adapted to the position of the top matching part 11, or when the bed body 1 moves downward to a lower position, the action member 4 can be driven downward by the bed body 1 to move to the first position.

[0041] In this embodiment, the bed body 1 includes a plurality of upper columns 12 arranged at intervals, and the bottom bracket 2 includes a plurality of corresponding lower columns 21. The upper columns 12 are provided with a accommodating cavity 121 opening downward, and the upper side of the lower column 21 is connected to the accommodating cavity 121 so as to move relatively up and down; the mating portion 11 is a locking hole 11 provided on the wall of the accommodating cavity 121.

[0042] The locking group includes a locking piece 31 that is relatively movably connected to the lower column 21, an elastic piece 32 arranged between the locking piece 31 and the lower column 21, and a locking portion 311 is provided on one side of the locking piece 31; under the action of the elastic piece 32, the locking piece 31 maintains a tendency to move toward the locking hole 11; when the locking piece moves relatively until its locking portion 311 is stuck in any locking hole 11, the relative height of the bed body 1 and the base frame is locked.

[0043] The lower side surface of the locking portion 311 is configured as an inclined surface and / or the bottom wall of the locking hole 11 is configured as an inclined surface 312. When the locking portion 311 is inserted into any locking hole 11, when the bed 1 is moved upward, the locking member 31 can be 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 surface of the locking portion 311. When the locking portion 311 is disengaged from the locking groove, the height adjustment mechanism is unlocked, and the bed 1 can continue to move upward. In this way, when the height of the bed 1 is to be adjusted upward, no additional operation is required, and the bed 1 can be directly moved upward. In this embodiment, the lower side surface of the locking portion 311 is configured as an inclined surface 312.

[0044] The upper end surface 313 of the locking portion 311 and the upper side wall of the locking hole 11 are configured so that when the locking portion 311 is inserted into any locking hole 11, the cooperation between the upper end surface of the locking portion 311 and the upper side wall of the locking hole 11 prevents the bed body 1 from moving downward. In this embodiment, the upper end surface of the locking portion 311 and the upper side wall of the fixed hole are both arranged in a straight line. Therefore, after the locking portion 311 is inserted into any locking hole 11, even if the bed body 1 is pressed downward, the upper end surface of the locking portion 311 and the upper side wall of the locking hole 11 cooperate with each other in a straight line, so that the locking member 31 cannot move away from the locking hole 11, thereby preventing the bed body 1 from moving downward, thereby ensuring the safety of the baby bed when in use. In other embodiments, the upper end surface of the locking portion 311 and the upper side wall of the fixed hole can also be other mutually cooperating shapes, as long as the above-mentioned technical purpose can be achieved.

[0045] A transverse receiving slot 211 is provided within the lower column 21 and is open toward the locking hole 11. One side of the locking member 31 is relatively movably connected to the transverse receiving slot 211. As the locking member 31 moves laterally, the locking portion 311 engages or disengages the locking hole 11. In this embodiment, the elastic member 32 is configured as a compression spring and is disposed within the transverse receiving slot 211, positioned between the side of the locking member 31 facing away from the locking hole 11 and the wall portion corresponding to the transverse receiving slot 211.

[0046] The lower side of the operating member 4 is connected to the lower column 21 so that it can move up and down relatively. The locking member 31 is provided with an operating hole 310 extending vertically therethrough. The locking member 31 is mounted on the outside of the operating member 4 so that it can move laterally relatively. In this way, the operating member 4 can also move up and down relative to the locking member 31.

[0047] Preferably, an action groove 41 is provided on one side of the action member 4, and the lower side wall 410 of the action groove 41 is provided as an inclined surface opening downward; when the wall portion 412 of the action groove 41 between the upper side wall and the lower side wall 410 is opposite to the inner wall of the action hole of the locking member 31, the action member 4 is in the first position; and in this state, if the locking portion 311 of the locking member is 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 portion 311 is stuck in the locking hole 11 to lock the relative height of the bed body 1 and the bottom bracket 2. Preferably, at this point, the inner wall of the locking hole of the locking member 31 abuts against the wall portion 412 of the action groove 41 between the upper and lower side walls, preventing the locking member 31 from moving further toward the side where the locking hole is located. If the locking hole 11 is not aligned with any other locking hole 11, the end of the locking portion 311 will abut against the inner wall of the accommodating cavity 121 under the action of the elastic member 32. When the action member 4 moves upward, the inclined surface can push the locking member 31 away from the side where the locking hole 11 is located.

[0048] When the operating member 4 moves upward until its outer wall below the operating groove 41 abuts against the locking member 31, the operating member 4 is in the second position. In this position, the locking member 31 moves away from the locking hole and out of the operating groove 41. Under the action of the elastic member 32, the locking member 31 and the outer wall of the operating member 4 remain in this abutting position. In this position, the locking member 31 is completely moved into the accommodating cavity 121. Without external force, the operating member 4 cannot move up or down, and the locking member 31 cannot move toward the locking hole 11. Therefore, when the operating member 4 is in the second position, the bed 1 can move downward without worrying about the locking portion 311 of the locking member 31 getting stuck in any of the locking holes 11.

[0049] The bed body 1 is provided with a lower driving portion 13 , and the bed body 1 drives the acting member 4 at the first position to move upward to the second position through the lower driving portion 13 .

[0050] In this embodiment, the lower driving portion 13 is located between the outer wall of the lower column 21 and the inner wall of the accommodating cavity 121; correspondingly, a follower 44 is connected to the action 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 accommodating cavity 121; the follower 44 and the lower driving portion 13 are configured so that when the locking portion 311 of the locking member 31 is inserted into the topmost locking hole 11, the lower driving portion 13 abuts against the lower side of the follower 44, or the portion of the lower driving portion 13 opposite to the follower 44 is located at a distance from the lower side of the follower 44. In this arrangement, when the locking portion 311 of the locking member 31 is engaged in the topmost locking hole 11, the bed body 1 is pulled upward, and the lower driving portion 13 can drive the active member 4 to move upward by driving the follower 44 to move upward until the active member 4 is in the second position, that is, the bed body 1 drives the follower 44 through the lower driving portion 13 to drive the active member 4 in the first position upward to the second position.

[0051] Preferably, the lower drive unit 13 can be protruded from the inner wall of the accommodating cavity 121 (e.g., through integral molding or any other known and feasible connection method). In this embodiment, the lower side of the upper column 12 is connected to a bottom connecting member 130, and the lower drive unit 13 extends upward from the upper end of the bottom connecting member 130 and extends into the lower side of the accommodating cavity 121. In other words, the lower drive unit 13 is part of the bottom connecting member 130. When the bed body 1 moves up and down, the bottom connecting member 130 moves up and down with it, and thus the lower drive unit 13 also moves up and down.

[0052] The bottom bracket 2 is provided with a first elongated hole 22 extending vertically, and the actuating member 4 is provided with 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 bottom bracket 2 and the actuating member 4 and enabling the actuating member 4 to move up and down relative to the bottom bracket 2. At least one end of the first connecting shaft 44 extends outside the bottom bracket 2 and is located between the outer wall of the bottom bracket 2 and the inner wall of the accommodating chamber 121. The first connecting shaft 44 is configured as the driven member. When the bed body 1 moves upward until the lower drive portion 13 contacts the first connecting shaft 44 and then continues to move upward, it drives the first connecting shaft 44 and the actuating member 4 to move upward relative to the bottom bracket 2. In other words, the first connecting shaft is configured as the driven member 44.

[0053] In this embodiment, the lower drive portion 13 is recessed with a drive groove 131 in a direction corresponding to the first connecting shaft 44. 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 actuator 4 are driven to move upward relative to the bottom bracket 2. In other embodiments, the drive groove 131 may not be provided, and the lower drive portion 13 may be configured into 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 actuator 4 are driven to move upward relative to the bottom bracket 2. The specific shape of the lower drive portion 13 can be appropriately set according to operational needs.

[0054] Because the first connecting shaft 44 passes through the first elongated hole 22, when the first connecting shaft 44 moves upward until it contacts the top wall of the first elongated hole 22, it cannot move further upward, and thus the bed 1 cannot move further upward. This limits the maximum height to which the bed 1 can move upward, and prevents the bed 1 from moving upward without restriction and detaching from the bottom bracket 2. Furthermore, when the first connecting shaft 44 contacts the bottom wall of the first elongated hole 22, it cannot move further downward, thus further limiting the distance that the bed 1 can move downward.

[0055] Preferably, the actuating member 4 is provided with a second elongated hole 46 extending vertically, with the first elongated hole 22 located below the second elongated hole 46. Correspondingly, the base bracket 2 is provided with a second circular hole 23, through which a second connecting shaft 47 passes. The cooperation between the first elongated hole 22 and the first circular hole 45, combined with the cooperation between the second elongated hole 46 and the second circular hole 23, provides a more stable connection between the actuating member 4 and the base bracket 2 for vertical relative movement, allowing the actuating member 4 to move smoothly and less easily out of position. If the maximum vertical distance of the bed 1 relative to the base bracket 2 cannot be limited by the first connecting shaft 44 and the first elongated hole 22, the second connecting shaft 47 can abut against the top and bottom walls of the second elongated hole 46 to limit the maximum vertical distance of the bed 1 relative to the base bracket 2. Furthermore, these two actuating shafts can cooperate to limit the maximum vertical distance of the bed 1 relative to the base bracket 2.

[0056] The bed body 1 is further provided with an upper driving portion 14 , and the bed body 1 drives the acting member 4 in the second position to the first position through the upper driving portion 14 .

[0057] The upper drive portion 14 is disposed on the top wall of the accommodating chamber 121 and is positioned in the direction of the actuator 4. The upper drive portion 14 can be integrally formed with the top wall of the accommodating chamber, or can be connected to the top wall of the accommodating chamber 121 by any known and feasible means. Alternatively, the top wall of the accommodating chamber is configured as the upper drive portion 14. When the actuator 4 is in the second position, the upper end of the actuator 4 can extend beyond the upper end of the lower column, be flush with the upper end of the lower column, or be located within the lower column. Accordingly, the upper drive portion 14 is adaptively modified to achieve the aforementioned driving purpose.

[0058] In this embodiment, the upper driving portion 14 can drive the actuating member 4 to move downward to the second position as the bed 1 moves downward. In other embodiments, the upper driving portion 14 can drive the actuating member 4 to move downward as the bed 1 moves downward until its outer wall located below the actuating groove 41 just disengages from the abutment against the locking member 31. As soon as the outer wall of the actuating member 4 disengages from the abutment against the locking member 31, the locking member 31 will move toward the side where the locking hole 11 is provided under the action of the elastic member 32, and drive the actuating member 4 to move downward via the lower side wall 410 of the actuating groove 41, which is provided as an inclined surface.

[0059] In this embodiment, preferably, the upper side wall 411 of the action groove 41 is also configured as an upwardly open inclined surface. This configuration makes it easier for the locking member 31 to move toward one side of the action groove 41 and into the action groove 41 .

[0060] Preferably, one of the outer wall of the operating member 4 and the inner wall at the corresponding position of the lower column 21 has a convex positioning boss 48, and the other has two upper and lower positioning grooves 24 spaced apart, into which the locating boss 48 can be snapped; or one of the two convex positioning bosses 48 is spaced apart, and the other has a locating groove 24 into which either locating boss 48 can be snapped. When the locating boss 48 is snapped into the locating groove 24, the relative position of the operating member 4 relative to the connecting seat can be made more stable. In this embodiment, the outer wall of the operating member 4 has a convex positioning boss 48, and the inner wall at the corresponding position of the lower column 21 has two upper and lower positioning grooves 24 spaced apart. The locating groove 24 and the locating boss 48 can be arranged at any suitable position, as long as they do not interfere with the operating groove 41 and the inner wall of the locking member 31 facing the operating groove 41.

[0061] The bed body 1 also includes an upper frame 15, to which the upper sides of the plurality of upper columns 12 are connected. In this embodiment, the upper frame 15 is square in shape, 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 of the corners of the square upper frame 15. Four groups of lower columns 21 are also provided. Preferably, the bottom bracket 2 also includes two groups of bottom support members 25, with both sides of each group of bottom support members 25 connected to the lower ends of two groups of lower columns 21. Wheels 26 are also provided on the underside of each of the bottom support members 25 to facilitate moving the crib. In other embodiments, the bottom bracket 2 may be omitted, and wheels 26 may be provided directly on the underside of each column; alternatively, the bottom bracket 2 may be omitted and the wheels 26 may not be provided; alternatively, wheels 26 may be provided on the underside of two groups of columns on one side, while wheels 26 are not provided on the underside of two groups of columns on the other side.

[0062] In another embodiment, the upper frame 15 can also be of other suitable shapes, the number of the upper columns 12 is adaptively adjusted, and the connection position of the upper columns 12 and the upper frame 15 is also adaptively adjusted; correspondingly, the shape of the bottom bracket 2 and the number of the lower columns 21 are also adaptively adjusted; or, the upper frame 15 can also be of any suitable shape, the upper columns 12 are set into 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 the lower columns 21 of the bottom bracket 2 is also set to two groups.

[0063] The bed frame 1 is provided with a space for infants and young children. Specifically, a bottom support frame 16 is connected to the underside of the bed frame 1, which is connected to the underside of the upper column 12. A seat cloth is connected to the bed frame 1 and the bottom support frame 16, thereby forming a usable space. During use, a cushion can be placed on the bottom support frame 16. The connection between the bottom support frame 16, the bed frame 1, and the seat cloth can be achieved by any known and feasible technology and is not the key point of the present invention, so it will not be described in detail here.

[0064] When the crib is in normal use, the locking portion 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 operating groove 41, located between the upper and lower side walls, abuts against the locking member 31. Simultaneously, the positioning boss 48 on the operating member 4 engages with the lower positioning groove 24, thereby more stably locking the crib 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.

[0065] Because the crib of the present invention adopts the above-mentioned design, when the crib is in a position other than the highest level, that is, when the locking member is not locked with the lowest locking hole, if the overall height of the crib is to be raised, the operation method is as follows:

[0066] Just pull the bed 1 upwards directly. Since the lower side of the locking portion 311 is a slope, when the bed 1 moves upwards, the bottom wall of the locking hole 11 will push the slope of the locking portion 311 (such as Figure 5 、 6 When the locking member 31 is moved into the upper column 12, the compression spring is compressed when the locking member 31 moves into the upper column 12; when the locking member 31 moves until the locking portion 311 thereof is disengaged from the locking hole 11, the locking device is unlocked; the bed body 1 is further moved upwards, and when the locking member 31 has not yet aligned with the next locking hole 11, the end surface of the locking portion 311 contacts the inner wall of the upper column 12; when the locking portion 311 is aligned with the next locking hole 11, the locking member 31 moves outwards under the restoring force of the compression spring, so that the locking portion 311 is inserted into the corresponding locking hole 11, and the locking device is unlocked. The locking mechanism is once again locked, locking the bed 1 at that height relative to the lower post 21, locking the entire crib at that height. To further increase the height of the crib, simply move the bed 1 upward to the desired height. The locking portion 311, under the action of the compression spring, inserts into the corresponding locking hole 11, locking the entire crib at that height. Once the locking portion 311 of the locking member 31 locks with the locking hole 11 at the bottom of the bed 1, the bed 1 is at its highest relative position relative to the lower post 21, locking the crib at its highest position. During this adjustment process, only the states of the locking member 31 and the elastic member 32 change; the state of the actuator 4 remains unchanged and remains in the first position. After the bed 1 is moved upward, causing the locking portion 311 to disengage from the locking hole 11 at a certain height. If the bed 1 is then moved downward, the locking hole 11 at that height aligns with the locking portion 311, and the locking portion 311 moves again to lock with the locking hole 11 at that height. That is, during this process, the bed body 1 cannot move downward until the adjacent locking holes are aligned with the locking portions 311 , so that the height of the bed body 1 cannot be adjusted downward but can only be adjusted upward.

[0067] When the crib is at any height position other than the lowest position, the bed body 1 cannot be moved directly downward because the top wall of the locking hole 11 and the top wall of the locking portion 311 are both straight surfaces. The cooperation between the straight surfaces cannot push the locking member 31 to move into the upper column 12, so the bed body 1 cannot move downward.

[0068] To lower the overall height of the crib, adjust the bed 1 downward to the target height by following the three steps below:

[0069] Step 1: Move the bed 1 upwards until it can no longer move upwards.

[0070] Keep moving the bed 1 upwards, the bed 1 will first reach the highest position in its normal state (at this height position, the locking portion 311 is locked into the lowest locking hole 11 of the bed 1, as shown in FIG. Figures 7 to 10 As shown); the bed body continues to move upward, the bottom wall of the lowest locking hole drives the locking piece 31 to move into the horizontal accommodating groove and disengage the locking hole, and the bed body 1 moves upward over the highest gear position; when the bed body 1 moves upward 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 upward, the bottom wall of the driving groove 131 will push the first connecting shaft 44 to move upward together, thereby moving the action member 4 connected to the first connecting shaft 44 upward relative to the lower column 21; because the lower side wall of the action groove 41 of the action member 4 is set as an inclined surface, when the action member 4 moves upward, the locking piece 31 is pushed to continue to move to the side away from the locking hole 11 through the action of the inclined surface, further compressing the compression spring; when the bed body 1 moves upward to the first connecting shaft 44 and the lower column 21 When the top wall of the long hole on the bed 1 contacts the top wall of the long hole, the bed body 1 can no longer move upward, and the action member 4 is in the second position at this time; and in this position, the locking member 31 is also completely out of the action groove 41, and the lower side of the inner wall of the transverse accommodating 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 tightly 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 been disengaged from the lower positioning groove 24 as the action member 4 moves upward and is stuck in the upper positioning groove 24, thereby making the action member 4 more stably positioned in the second position, so that 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 remains in a state of being disengaged from the locking hole 11 (as Figures 11 to 13 shown).

[0071] Step 2: Move the bed 1 downward until it can no longer move downward.

[0072] Because the locking member 31 is positioned by the action member 4 in the second position in a state of being disengaged from the locking hole 11, the bed body 1 can be moved downward. During the process of moving the bed body 1 downward, before the upper end of the action member 4 contacts the upper drive part 14, the relative positions of the action 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, thereby not causing any obstruction to the downward movement of the bed body 1, and the bed body 1 can move downward without any obstruction. After the upper end of the action member 4 contacts the upper drive part 14 (as shown in FIG. Figure 14 、 15 As shown), the bed body 1 continues to move downward, the upper driving part 14 will press the action member 4 downward, thereby driving the action member 4 to move downward. When the bed body 1 moves downward to the point where it can no longer move downward, the action member 4 also moves downward to the position where the wall portion 412 of its action groove 41 between the upper side wall and the lower side wall is again opposite to the locking member 31, that is, the action member 4 moves to the first position. At 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 action member 4 is again engaged in the positioning groove 24 below.

[0073] In this embodiment, the crib is preferably configured so that when the bed 1 reaches its limit of downward movement, the locking portion 311 of the locking member 31 is aligned with the topmost locking hole 11 of the upper column 12. Consequently, under the action of the elastic member 32, the locking member 31 can be moved until the locking portion 311 is inserted into the topmost locking hole 11 of the upper column 12. In other words, when the bed 1 reaches its limit of downward movement, the bed 1 is locked at its lowest height. This configuration makes adjustment operations more intuitive.

[0074] In other embodiments, when the bed 1 moves downward and cannot move any further, the locking portion 311 may be aligned with a position above the uppermost locking hole 11 of the bed 1. In this way, when the bed 1 moves downward and cannot move any further, the bed 1 can be moved upward, and the locking portion 311 can be engaged with the uppermost locking hole 11 of the bed 1 under the action of the elastic member 32.

[0075] That is, when the bed body 1 moves downward to the point where it cannot move any further, the locking portion 311 either faces the topmost locking hole 11 of the upper column 12 or faces the wall above the topmost locking hole 11 of the bed body 1. In short, it cannot be located below the topmost locking hole 11 of the upper column 12. In this way, the height of the crib will not be missed when adjusting the height of the crib, that is, no gear height will be missed.

[0076] Step 3: Move the bed 1 upwards to the target height.

[0077] Directly move the bed body 1 upwards to the target height position, as described above for adjusting the overall height of the crib. Before the bed body 1 is moved to the target height position, whenever the locking piece 31 is aligned with any locking hole 11, the locking portion 311 will be stuck in the locking hole 11, and the bed body 1 will continue to be pulled upwards. The bottom wall of the locking hole 11 will drive the locking piece 31 to move into the upper column 12 by driving the inclined surface of the lower side of the locking portion 311; when the bed body 1 moves upwards to the target height position, under the action of the elastic piece 32, the locking portion 311 is stuck in the locking hole 11 at the corresponding height position, and the bed body 1 is locked at this height position, that is, the entire crib is locked at this height.

[0078] As described above, when the crib of the present invention is in normal use, that is, when the locking portion 311 is engaged in one of the locking holes 11, when the crib of the present invention is in a non-highest position, that is, when the locking portion 311 is engaged in any locking hole 11 other than the lowest locking hole 11, to raise the overall height of the crib, it is only necessary to directly move the bed body 1 upwards. Regardless of the height position of the crib, that is, regardless of which locking hole 11 the locking portion 311 is engaged, to lower the overall height of the crib, it is only necessary to move the bed body 1 upwards until it cannot be moved upwards any further, then move the bed body 1 downwards until it cannot be moved downwards any further, and then move the bed body 1 upwards again to the desired height. In other words, to adjust the overall height of the crib of the present invention, no additional operations are required, and it is only necessary to directly move the bed body 1 up and down. In this way, not only is it easy to adjust the overall height of the crib, but there is also no need to set an operating component that is at least partially exposed outside the crib for operation, thereby avoiding the problem of the bed body 1 falling down due to improper operation of the operating component; and when the crib of the present invention is in normal use, no matter which locking hole 11 the locking portion 311 is engaged with, the bed body 1 cannot move downward relative to the bottom bracket 2, thereby completely eliminating the situation where the bed body 1 falls down due to improper operation, and thus completely eliminating the safety problems of children caused by this, making the safety of the crib of the present invention greatly improved.

[0079] like Figure 13 As shown, preferably, the crib of the present invention further includes two U-shaped tail plates 17 connected to the outer periphery of each side, and the two uprights on the same side are respectively located within each U-shaped tail plate 17. In this arrangement, the U-shaped tail plates 17 completely cover the locking holes 11 of the upper uprights 12, thereby making the height adjustment of the crib of the present invention safer.

[0080] The connection method between the U-shaped tail plate 17 and the side frame can be any known and feasible structure, and the specific connection method is not the focus of the present invention, so it will not be described here.

[0081] It should be understood by those skilled in the art that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", "horizontal", "vertical" and the like are based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the embodiments of the present invention and to simplify the description, and does not indicate or imply that the device or element referred to must have a specific orientation, 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 cannot be understood as a limitation on the present invention.

[0082] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A height-adjustable crib, characterized by: The invention comprises a bed body and a bottom support, wherein the bed body is connected to the bottom support so as to be movable up and down relative to the bed body, and a height adjustment mechanism is provided between the bed body and the bottom support, wherein the height adjustment mechanism comprises an action member connected to the bottom support, a locking group movably connected to the bottom support, and a plurality of matching parts spaced apart from each other on the bed body. The operating member can move up and down between a first position and a second position relative to the bottom bracket. When the operating member is in the first position and the locking group is adapted to the position of any matching portion, the locking group can move to lock with the matching portion to lock the bed body in the downward movement direction; After the locking group is unlocked from the lowest matching part, the bed body that continues to move upward can drive the action member to move upward to the second position, and the locking group remains in a state of being unlocked from the matching part; after the action member is in the second position, the bed body is moved downward, and when it moves to the position where the highest point of the locking group is matched with the uppermost matching part, the action member is driven by the bed body to move downward to the first position.

2. The height-adjustable baby crib according to claim 1, characterized in that: The bed body includes a plurality of upper columns arranged at intervals, and the bottom bracket includes a plurality of corresponding lower columns. The upper columns are provided with a accommodating cavity opening downward, and the upper sides of the lower columns are connected to the accommodating cavity so as to be relatively movable up and down.

3. The height-adjustable baby crib according to claim 2, characterized in that: The matching portion is a locking hole arranged on the wall of the accommodating cavity; the locking group includes a locking piece that is relatively movably connected to the lower column, an elastic piece arranged between the locking piece and the lower column, and a locking portion is provided on one side of the locking piece; under the action of the elastic piece, when the locking piece moves until its locking portion is stuck in any locking hole, the relative height of the bed body and the base frame is locked.

4. The height-adjustable baby crib according to claim 3, characterized in that: The lower side surface of the locking part is set as a slope and / or the bottom wall of the locking hole is set as a slope; the upper end surface of the locking part and the upper side wall of the locking hole are set as follows: when the locking part is inserted into any locking hole, the cooperation between the upper end surface of the locking part and the upper side wall of the locking hole prevents the bed from moving downward.

5. The height-adjustable baby crib according to any one of claims 3 to 4, characterized in that: The lower side of the action member can be relatively moved up and down and connected to the lower column; and the locking member is provided with an action hole running through the upper and lower parts, and the locking member can be laterally moved and sleeved outside the action member through the action hole.

6. The height-adjustable baby crib according to claim 5, characterized in that: An action groove is provided on one side of the action member, and the lower side wall of the action groove is provided as an inclined surface opening downward; when the action member is in the first position, the wall portion of the action groove between the upper side wall and the lower side wall is opposite to the inner wall of the action hole of the locking member and the locking portion is aligned with a locking hole; when the action member is in the second position, the locking member abuts against the outer wall of the action member located on the lower side of the action groove.

7. The height-adjustable baby crib according to claim 2, 3, 4 or 6, characterized in that: A lower driving part is provided on the bed body, and the lower driving part is located between the outer wall of the lower column and the inner wall of the accommodating cavity. A follower is connected to the action member, and the follower is at least partially located between the outer wall of the lower column and the inner wall of the accommodating cavity; the bed body drives the action member in the first position to move upward to the second position through the lower driving part.

8. The height-adjustable baby crib according to claim 7, characterized in that: The bed body is also provided with an upper driving part, and the bed body drives the acting member in the second position to the first position through the upper driving part; the upper driving part is provided on the top wall of the accommodating cavity, or the top wall of the accommodating cavity is provided as the upper driving part.

9. The height-adjustable baby crib according to any one of claims 1 to 4, 6, and 8, characterized in that: One of the outer wall of the action member and the inner wall at the corresponding position of the lower column is provided with a positioning boss, and the other is provided with two upper and lower positioning grooves at intervals for the positioning boss to be snapped into; or one of the two upper and lower positioning bosses is provided with an interval, and the other is provided with a positioning groove for any positioning boss to be snapped into.

10. The height-adjustable baby crib according to any one of claims 1 to 4, 6, and 8, characterized in that: The bed body is provided with a space for infants and young children to use.

11. The height-adjustable baby crib according to claim 9, characterized in that: The bed body is provided with a space for infants and young children to use.

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