CN116195852A - Height-adjustable supporting leg assembly and game bed with same - Google Patents

Abstract

The invention discloses a height-adjustable supporting leg assembly and a game bed with the same. Comprising the following steps: the lower support pipe is provided with at least two gear adjusting holes which are distributed along the length direction of the lower support pipe; the upper support pipe is sleeved on the lower support pipe and covers all gear adjusting holes, and the upper support pipe is telescopic along the length direction of the lower support pipe; the locking device is connected with the support upper tube and is provided with a movable clamping piece, and the clamping piece is selectively clamped in any gear adjusting hole. When the support upper pipe extends to the uppermost part of the support lower pipe, the distance between the lowest gear adjusting hole and the lower end of the support upper pipe is H, and the distance H is larger than 0mm. The support upper pipe is provided with a display hole, the support lower pipe is provided with at least two gear display parts, and the gear display parts are exposed at the display hole when the clamping piece is clamped in the gear adjusting hole. The support leg assembly can be adjusted and stably maintained in any gear, and can still maintain high stability at the highest. The shift position can be displayed by the shift position display unit.

Description

Height-adjustable supporting leg assembly and game bed with same

Technical Field

The invention relates to the field of cribs, in particular to a supporting leg assembly with adjustable height and a play yard with the same.

Background

Among infant products, some infant beds and play beds are designed to be of height-adjustable structures, so that the infant bed can adapt to caregivers of different heights.

Such cribs and play yards generally employ height-adjustable support feet that are comprised of slidable upper and lower sleeves. However, when the support leg is adjusted to the longest, the length of the sleeved part of the two pipes is shortened, so that the bearing force of the connecting part of the upper sleeve and the lower sleeve is weaker, the deformation is easy, and the bed body is easy to shake.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a supporting leg assembly with adjustable height, so that the stability of the supporting leg assembly when the supporting leg assembly is adjusted to the highest level is improved.

The invention also aims to provide a game bed with the supporting leg assembly.

According to an embodiment of the invention, a height-adjustable support foot assembly includes: the gear adjusting device comprises a support lower pipe, a gear adjusting device and a gear adjusting device, wherein the support lower pipe is provided with at least two gear adjusting holes, and the gear adjusting holes are distributed along the length direction of the support lower pipe; the upper support pipe is sleeved on the lower support pipe and covers all the gear adjusting holes, and the upper support pipe is telescopic along the length direction of the lower support pipe; the locking device is connected with the support upper pipe and is provided with a movable clamping piece, and the clamping piece is selectively clamped in any gear adjusting hole; when the support upper pipe extends to the uppermost part of the support lower pipe, the distance between the lowest gear adjusting hole and the lower end of the support upper pipe is H, and the distance H is larger than 0mm; and the supporting footing is connected to the lower end of the supporting lower pipe.

According to the supporting leg assembly provided by the embodiment of the invention, the supporting leg assembly can be adjusted and stably kept in any gear by utilizing the locking device. When the support upper pipe and the support lower pipe are in the highest gear, the lower end of the support upper pipe is located below the gear adjusting hole at the lowest position of the support lower pipe, so that the lowest gear adjusting hole is prevented from being exposed, the aesthetic property of the support foot assembly is improved, the area of the sleeving area of the support upper pipe and the support lower pipe at the highest gear is made to be large, the structural stability of the support foot assembly can be improved, the support strength can be improved, and the placement stability of the support foot assembly on the ground can be improved by arranging the support foot.

According to some embodiments of the invention, the distance H is 25mm-50mm. Therefore, the length of the upper support pipe and the length of the lower support pipe are more reasonable, the covering length of the upper support pipe below the lowest gear adjusting hole is more reasonable, and the material cost of the support leg assembly can be effectively reduced on the premise of improving the structural stability of the support leg assembly.

In some embodiments, the locking device comprises: the operating piece is movably arranged at the upper end of the support upper tube; the driving piece is arranged between the operating piece and the clamping piece in a linkage way, and the operating piece drives the driving piece to drive the clamping piece to be separated from the clamping of the clamping hole. Therefore, the matching among the operating piece, the driving piece and the clamping piece is simpler, the operation difficulty of the locking assembly can be reduced, the response speed of the locking assembly is improved, and the locking assembly is simpler and more convenient to switch between the locking state and the unlocking state. And the operating piece is arranged at the upper end of the supporting upper pipe, so that the operating piece is higher, is convenient for a user to operate, can avoid the false touch of children, and can improve the use safety of the supporting leg assembly.

Further, the locking device further includes: the matching seat is arranged on the support upper pipe, a guide limit groove is defined on the matching seat or between the matching seat and the support upper pipe, and the clamping piece is matched in the guide limit groove. Therefore, the movement track of the clamping piece can be limited, the movement stability of the clamping piece is improved, and the probability of clamping caused by deviation of the clamping piece is reduced.

Further, a first positioning hole is formed in the matching seat, a second positioning hole is formed in the supporting upper pipe, two ends of the clamping piece are respectively matched with the first positioning hole and the second positioning hole, the first positioning hole and the second positioning hole form the guiding limiting groove, and one end of the clamping piece can extend into and be inserted into the gear adjusting hole from the second positioning hole under the driving of the driving piece. The first positioning hole and the second positioning hole which are arranged on the matching seat and the supporting upper pipe are utilized to form the guiding limit groove so as to limit the movement of the clamping piece, the structure is simple, the stress at the two ends of the clamping piece can be balanced, and the movement of the clamping piece is stable.

In some embodiments, the locking piece is provided with a stop block; the driving member includes: the driving block is provided with a matching groove, the driving block is sleeved on the clamping piece through the matching groove, the driving block is positioned between the stop block and the surface of the gear adjusting hole of the support lower pipe, the surface of the driving block facing the stop block is a driving surface, and the distance between at least two positions of the driving surface in the length direction of the support lower pipe and the surface of the gear adjusting hole is unequal. The mode drives the clamping piece to move, the requirements on materials of the driving block and the clamping piece are low, the overall abrasion is relatively low, and the locking device is favorable for keeping long-term control reliability.

Further, the driving block is located outside the support upper pipe, the matching seat covers the driving block, and the driving piece further comprises: the driving rod is connected with the driving block, and the upper end of the driving rod is matched with the operating piece. The driving block and the matching seat are assembled outside the supporting upper pipe, so that the assembly difficulty is reduced, and the overhaul is easy.

Further, at least one limiting block is arranged on the support upper pipe, the limiting block is located between the driving block and the operation piece, and the driving rod is matched with the limiting block. Therefore, the motion of the driving rod is limited by at least one limiting block, so that the motion stability of the driving rod is improved, the response speed of the locking device is improved, the clamping stagnation of the driving rod is reduced, and the difficulty of adjusting the locking device between the locking state and the unlocking state is reduced.

In some embodiments, the surface of the support upper tube is provided with a first profile and a second profile, the first profile and the second profile are arranged along the length direction of the support upper tube, the cross sections of the first profile and the second profile are L-shaped, the end parts of the cross sections of the first profile and the second profile are arranged towards each other, and the first profile and the second profile are formed by the protrusion of part of the tube wall of the support upper tube; the first profile strip and the second profile strip define the profile groove therebetween, and the matching seat is at least partially clamped in the profile groove. Therefore, the first molding strip and the second molding strip can form a larger contact area with the matching seat, so that the lateral movement and the shaking of the matching seat are conveniently limited. The support upper pipe can be processed by adopting the sectional material, the sectional material is easy to obtain, the cost is low, the sectional material can be obtained through purchasing during manufacturing, the independent processing is not needed, and the processing cost of the support upper pipe can be greatly shortened.

Further, the support upper pipe is also provided with an assembly hole corresponding to the mold groove, and the assembly seat is provided with an assembly block clamped in the assembly hole. Thus, the fixing stability of the locking device on the support upper tube can be further improved, and the working stability of the locking device can be ensured.

The play yard according to the embodiment of the present invention includes the height-adjustable support leg assembly described in the above embodiment.

According to the game bed provided by the embodiment of the invention, the supporting leg component is used as the heel brace, so that the height is adjustable, and the higher stability can be maintained when the height is adjusted to the highest.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a support foot assembly in a highest gear according to an embodiment of the present invention;

FIG. 2 is a schematic view of a support foot assembly in a lowest gear according to an embodiment of the present invention;

FIG. 3 is a schematic view of another orientation of the support foot assembly in a lowest gear according to an embodiment of the present invention;

FIG. 4 is an exploded view of a support foot assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of area A of FIG. 4;

FIG. 6 is a schematic cross-sectional view of one direction of a support foot assembly according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of another orientation of a support foot assembly according to an embodiment of the present invention;

fig. 8 is a schematic view of a play yard according to an embodiment of the present invention.

Reference numerals:

the play yard 1000 is configured such that,

the support foot assembly 100 is configured to support the foot assembly,

a support lower tube 10, a gear adjusting hole 11, a gear display part 12,

the support upper tube 20, the display hole 21, the limiting block 22, the first profile bar 23, the second profile bar 24, the profile groove 25, the assembly hole 26,

the locking device 30, the engaging member 31, the stopper 311, the operating member 32, the driving member 33, the driving block 331, the fitting groove 332, the driving lever 333, the fitting seat 34, the fitting block 341, the first reset member 35, the second reset member 36,

the moving wheel 40, the support foot 50, the first support foot 51, the second support foot 52,

a bed 200.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center," "lateral," "length," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

A height adjustable support foot assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1-7.

As shown in fig. 1 and 2, a height-adjustable support foot assembly 100 according to an embodiment of the present invention includes: the support lower tube 10, the support upper tube 20, the locking device 30 and the support foot 50, wherein the support upper tube 20 is sleeved on the support lower tube 10, the support upper tube 20 is telescopic along the length direction of the support lower tube 10, namely the support lower tube 10 and the support upper tube 20 are sleeved sliding rods. The locking device 30 is used to lock the support upper tube 20 and the support lower tube 10 in a proper height position.

The supporting leg assembly 100 is used for a crib as a supporting leg of a bed body, and the crib is not limited in specific type and may be a cradle, a play yard, etc.

Wherein, support down tube 10 is last to be equipped with two at least gear adjustment holes 11, and gear adjustment holes 11 are arranged along the length direction of support down tube 10. The support upper tube 20 is sleeved on the support lower tube 10 and covers all the gear adjusting holes 11. The locking device 30 is connected to the support down tube 10, and the locking device 30 has a movable engaging member 31, and the engaging member 31 is selectively engaged with any one of the shift position adjusting holes 11.

That is, the support upper tube 20 is slidably sleeved outside the support lower tube 10, a plurality of gear adjusting holes 11 are provided on the support lower tube 10, and the locking device 30 is provided on the support lower shutter and is switchable between a locked state and an unlocked state. In the locked state, the engaging member 31 of the locking device 30 extends into any of the gear adjusting holes 11, and in the unlocked state, the engaging member 31 exits the gear adjusting hole 11, and at this time, the support upper tube 20 can be pulled to adjust the overall height of the support leg assembly 100.

As shown in fig. 6, when the support upper tube 20 is extended to the uppermost side of the support lower tube 10, the lowermost gear adjusting hole 11 is spaced from the lower end of the support upper tube 20 by a distance H, which is greater than 0mm. So set up, on the one hand, when support upper pipe 20 and support down tube 10 are in the highest gear, the lower extreme interval of gear adjustment hole 11 and support upper pipe 20 is greater than 0mm, can avoid support down tube 10 on the gear adjustment hole 11 expose, improve the outward appearance aesthetic property of supporting foot subassembly 100, on the other hand, when support foot subassembly 100 is in the highest gear, also can ensure that support upper pipe 20 and support down tube 10 cover the length of establishing the part is longer, guarantee that the block piece 31 still is in support upper pipe 20 with the gear adjustment hole 11 block position of lower extreme, the structural rigidity of block department strengthens, improve support upper pipe 20 and support down tube 10's connection stability, avoid appearing the swing or the drunkenness phenomenon, improve the support stability of supporting foot subassembly 100.

That is, when the support upper tube 20 and the support lower tube 10 are in the highest gear, the lowermost gear adjusting hole 11 can be prevented from being exposed by setting the lower end of the support upper tube 20 to be lower than the lowermost gear adjusting hole 11 of the support lower tube 10. In this way, while improving the aesthetic property of the supporting leg assembly 100, the area of the sleeving region of the supporting upper tube 20 and the supporting lower tube 10 in the highest gear is made larger, so that the structural stability of the supporting leg assembly 100 can be improved, and the supporting strength can be improved.

As shown in fig. 1 and 2, the upper support tube 20 is provided with a display hole 21, the lower support tube 10 is provided with at least two gear display parts 12, and the gear display parts 12 are exposed at the display hole 21 when the engaging member 31 is engaged with the gear adjusting hole 11.

Specifically, the locking device 30 is disposed on one side of the support upper tube 20 and the support lower tube 10, the gear display portion 12 is disposed on the other side of the support lower tube 10, the gear display hole 21 is correspondingly disposed on the other side of the support upper tube 20, the locking device 30 controls the engaging member 31 to extend into different gear adjusting holes 11, and the gear display hole 21 moves to the gear display portion 12 corresponding to the gear adjusting hole 11, so as to perform gear display, and a user can learn the height of the supporting leg assembly 100 according to the gear, so that the adjustment convenience can be improved.

It will be appreciated that the gear display portion 12 may be sequentially arranged according to arabic numerals, chinese numerals, etc. (e.g., 1, 2, 3 … …; or one, two, three … …), where the upper support tube 20 and the lower support tube 10 are in the highest gear position, which means that the upper support tube 20 stretches to the highest position, where the height of the support leg assembly 100 is highest, and the lower support tube 20 and the lower support tube 10 are in the lowest gear position, where the upper support tube 20 is retracted to the lowest position, where the height of the support leg assembly 100 is lowest.

It can be appreciated that, in order to further improve the stability of the cooperation between the support upper tube 20 and the support lower tube 10, the support upper tube 20 is prevented from falling out of the support lower tube 10, when the support upper tube 20 and the support lower tube 10 are in the highest gear, the distance H between the lower end of the support upper tube 20 and the lowest gear adjusting hole 11 of the support lower tube 10 can be in the range of 25mm-50mm, so that the lengths of the support upper tube 20 and the support lower tube 10 are more reasonable, the covering length of the support upper tube 20 below the lowest gear adjusting hole 11 is more reasonable, and the material cost of the support foot assembly 100 can be effectively reduced on the premise of improving the structural stability of the support foot assembly 100.

In addition, the supporting feet 50 are connected to the lower end of the supporting down tube 10, and the supporting foot assembly 100 is placed on the ground through the supporting feet 50, so that the placement stability of the supporting foot assembly 100 on the ground can be improved.

In some embodiments, as shown in fig. 1-3, the support foot assembly 100 further comprises: support foot 50 and moving wheel 40, be provided with the moving wheel 40 below support foot 50, move support foot assembly 100 to the desired position through moving wheel 40.

As shown in fig. 2 and 3, the support foot 50 may include a first support foot 51 and a second support foot 52, the first support foot 51 being rotatably coupled to the second support foot 52, the second support foot 52 being rotatable relative to the first support foot 51 such that the first support foot 51 is angularly disposed with respect to the second support foot 52, and the angle between the first support foot 51 and the second support foot 52 being adjustable. This allows the support foot assembly 100 to accommodate more environments, for example, where the ground is obstructed, one of which may be avoided by the adjustable angle feature of the first support foot 51 and the second support foot 52.

Optionally, the ratio of the length of the first support foot 51 to the length of the second support foot 52 is 1:1-3:1. The length of the first support foot 1 is at least half the length of the support foot 50, thereby ensuring a basic support capacity of the support foot 50 when the angle is changed.

Further, at least two moving wheels 40 are provided, and the bottoms of the first supporting foot 51 and the second supporting foot 52 are respectively provided with the moving wheels 40, so that the moving stability of the supporting foot 50 can be ensured.

As shown in fig. 3 and 4, in some embodiments, the locking device 30 includes: the operating member 32 and the driving member 33, the operating member 32 is movably arranged at the upper end of the supporting upper tube 20, the driving member 33 is connected between the operating member 32 and the clamping member 31, and the operating member 32 drives the driving member 33 to drive the clamping member 31 to be separated from the clamping hole.

In other words, the operating member 32 is provided at the upper end of the support upper tube 20, one end of the driving member 33 is in power connection with the operating member 32, and the other end of the driving member 33 is in power connection with the engaging member 31. The operating member 32 drives the driving member 33 to move, and the driving member 33 drives the engaging member 31 to move toward the gear adjusting hole 11 to engage in the gear adjusting hole 11. Or the driving piece 33 drives the clamping piece 31 to move away from the gear adjusting hole 11 so as to be separated from the clamping with the gear adjusting hole 11.

Thus, not only the cooperation among the operating member 32, the driving member 33 and the engaging member 31 is simpler, the operation difficulty of the locking assembly can be reduced, and the response speed of the locking assembly can be improved, so that the switching of the locking assembly between the locking state and the unlocking state is simpler and more convenient. And the operating member 32 is disposed at the upper end of the support upper tube 20 to have a high height, so that the user can operate the support upper tube conveniently, and at the same time, the child can be prevented from touching the support upper tube by mistake, and the use safety of the support foot assembly 100 can be improved.

As shown in fig. 4 and 5, the locking device 30 further includes: the matching seat 34, the matching seat 34 is arranged on the support upper pipe 20, a guiding limit groove is defined on the matching seat 34 or between the matching seat 34 and the support upper pipe 20, and the clamping piece 31 is matched in the guiding limit groove. Therefore, the movement track of the clamping piece 31 can be limited, the movement stability of the clamping piece 31 is improved, and the probability of clamping caused by the deviation of the clamping piece 31 is reduced.

Specifically, the first positioning hole is formed on the matching seat 34, the second positioning hole is formed on the supporting upper tube 20, two ends of the clamping piece 31 are respectively matched in the first positioning hole and the second positioning hole, the first positioning hole and the second positioning hole form a guiding limit groove, and one end of the clamping piece 31 can extend into and be inserted into the gear adjusting hole 11 from the second positioning hole under the driving of the driving piece 33.

That is, the inner walls of the first positioning hole and the second positioning hole define the guiding and limiting groove, when the clamping piece 31 moves towards the gear adjusting hole 11, the clamping piece passes through the first positioning hole and stretches into the gear adjusting hole 11 to be clamped with the gear adjusting hole 11, when the clamping piece 31 moves away from the gear adjusting hole 11, the clamping piece 31 is separated from the gear adjusting hole 11, and the other end of the clamping piece 31 stretches into the second positioning hole, so that under the wire limiting effect of the guiding and limiting groove defined by the first positioning hole and the second positioning hole, the stability of the cooperation of the clamping piece 31 and the gear adjusting hole 11 is improved, and the phenomenon that the clamping piece 31 deflects to cause the failure of aligning the gear adjusting hole 11 is avoided. The guide limit groove is formed by the first locating hole and the second locating hole which are arranged on the matching seat 34 and the supporting upper pipe 20 so as to limit the movement of the clamping piece 31, the structure is simple, the stress at the two ends of the clamping piece 31 can be balanced, and the movement of the clamping piece 31 is stable.

As shown in fig. 5, in some embodiments, a stopper 311 is provided on the engaging member 31. The driving member 33 includes: the driving block 331, be equipped with the cooperation groove 332 on the driving block 331, the driving block 331 overlaps on the fastener 31 through the cooperation groove 332, and the driving block 331 is located between the face of stopping piece 311 and the gear adjustment hole 11 of support down tube 10, and the surface of driving block 331 towards stopping piece 311 is the driving surface, and the driving surface is along the distance inequality of the face of at least two places and gear adjustment hole 11 in the length direction of support down tube 10. When the driving block 331 moves, the position of the engaging member 31 relative to the longitudinal direction of the driving surface changes, so that the driving surface is not equal to the surface of the gear adjusting hole 11 in at least two positions along the longitudinal direction of the support down tube 10, the position of the engaging member 31 relative to the surface of the gear adjusting hole 11 changes, and the engaging member 31 can move telescopically relative to the surface of the gear adjusting hole 11.

The mode drives the clamping piece 31 to move, the requirements on materials of the driving block 331 and the clamping piece 31 are low, the overall abrasion is relatively low, and the locking device is favorable for keeping long-term control reliability.

Specifically, a slotted hole groove (i.e. a matching groove 332) is formed in the driving block 331, one end of the engaging member 31 extends into the slotted hole groove, the slot wall of the slotted hole groove in the extending direction is gradually increased in the direction towards the supporting lower tube 10 to define a driving surface, the driving surface is arranged in a fitting manner with the stop block 311, the stop block 311 is configured as a flange on the engaging member 31, a second reset member 36 is arranged between the stop block 311 and the matching seat 34, the second reset member 36 is always pushed against the stop block 311 to be fitted on the driving surface, the operating member 32 is slidably connected to the supporting upper tube 20 through the first reset member 35, the driving block 331 can push the engaging member 31 to move away from the gear adjusting hole 11 by pulling the operating member 32 upwards to unlock the locking device 30, at this time, the gear of the supporting upper tube 20 and the supporting lower tube 10 can be adjusted, and after the adjustment is completed, the driving member 33 is driven to reset through the first reset member 35, and the engaging member 31 is driven to extend into the corresponding gear adjusting hole 11 through the second reset member 36.

Of course, the structure of the present invention is not limited thereto, and in other embodiments, the slot wall of the oblong slot in the telescoping direction gradually increases in a direction away from the support down tube 10 to define a driving surface, corresponding to pushing the operating member 32 downward to unlock the locking device 30.

As shown in fig. 5 and 7, the driving block 331 is located outside the supporting upper tube 20, the matching seat 34 covers the driving block 331, and the driving member 33 further includes: the driving rod 333 connected to the driving block 331, and the upper end of the driving rod 333 is engaged with the operating member 32. Thus, the driving block 33 and the matching seat 34 are assembled outside the support upper pipe 20, the assembly difficulty is reduced, and the overhaul is easy.

Specifically, an installation space with an open upper end is defined between the inner wall of the fitting seat 34 and the outer wall of the supporting upper tube 20, the driving block 331 and the clamping piece 31 are located in the installation space, the upper end of the driving block 331 is connected with the driving rod 333, the upper end of the driving rod 333 is connected with the operating piece 32 (which may be in power connection or direct connection), the operating piece 32 drives the driving rod 333, the driving rod 333 drives the driving seat, and the driving seat pushes the stop block 311 to achieve the clamping or separating of the clamping piece 31 and the gear adjusting hole 11.

It will be appreciated that the drive rod 333 is connected at one end to the operating member 32 and extends downwardly at the other end to engage the drive block 331 for a longer length. Based on the fact that at least one limiting block 22 is arranged on the support upper tube 20, the limiting block 22 is located between the driving block 331 and the operating piece 32, the driving rod 333 is matched with the limiting block 22, and therefore movement of the driving rod 333 can be limited through the at least one limiting block 22, movement stability of the driving rod 333 is improved, response speed of the locking device 30 is improved, clamping stagnation of the driving rod 333 is reduced, and difficulty in adjusting the locking device 30 between a locking state and an unlocking state is reduced.

As shown in fig. 5, in some embodiments, the surface of the support upper tube 20 is provided with a first profile 23 and a second profile 24, the first profile 23 and the second profile 24 are provided along the length direction of the support upper tube 20, the cross sections of the first profile 23 and the second profile 24 are L-shaped, the end portions of the cross sections of the first profile 23 and the second profile 24 are provided toward each other, and the first profile 23 and the second profile 24 are formed by protruding a portion of the tube wall of the support upper tube 20. The first profile 23 and the second profile 24 define a profile slot 25 therebetween, and the mating seat 34 is at least partially clamped within the profile slot 25.

That is, the support upper tube 20 is provided with an inwardly recessed molding groove 25, the molding groove 25 is defined by two L-shaped first molding bars 23 and second molding bars 24, the first molding bars 23 and the second molding bars 24 are disposed opposite to each other to form the molding groove 25, the driving rod 333 is disposed in the molding groove 25, and the stopper 22 is disposed at intervals in the length direction of the support upper tube 20 to fix the driving rod 333.

The first profile 23 and the second profile 24 can form a larger contact area with the mating seat 34, so as to limit the lateral movement and shaking of the mating seat 34. The support upper pipe 20 can be processed by adopting a profile, the profile is easy to obtain, the cost is low, the profile can be obtained through purchasing during manufacturing, the independent processing is not needed, and the processing cost of the support upper pipe 20 can be greatly shortened.

Further, the corresponding groove 25 on the upper support tube 20 is also provided with a fitting hole 26, and the fitting seat 34 is provided with a fitting block 341 clamped in the fitting hole 26. Thus, the upper end of the driving member 33 is connected with the operating member 32, the driving block 331 at the lower end of the driving member 33 is disposed in the fitting seat 34, and the lower end of the fitting seat 34 is fixed with the support upper tube 20 through the fitting block 341, so that the fixing stability of the locking device 30 on the support upper tube 20 can be further improved, and the working stability of the locking device 30 can be ensured. The structure of a play yard 1000 according to an embodiment of the present invention is described below with reference to fig. 8.

The play yard 1000 employs the height-adjustable support leg assembly 100 and the bed body 200 according to the above embodiments, and as shown in fig. 8, the play yard 1000 includes the bed body 200 and the support leg assembly 100, and at least two support leg assemblies 100 are provided. As shown in fig. 8, the support leg assemblies 100 are provided at both sides of the bed 200, respectively. The structure of the supporting foot assembly 100 is described above and will not be described again here. By providing the support foot assembly 100 as a foot rest, not only is the height adjustable, but also a high degree of stability is maintained when the height is maximized.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A height-adjustable support foot assembly, comprising:

the gear adjusting device comprises a support lower pipe, a gear adjusting device and a gear adjusting device, wherein the support lower pipe is provided with at least two gear adjusting holes, and the gear adjusting holes are distributed along the length direction of the support lower pipe;

the upper support pipe is sleeved on the lower support pipe and covers all the gear adjusting holes, and the upper support pipe is telescopic along the length direction of the lower support pipe;

the locking device is connected with the support upper pipe and is provided with a movable clamping piece, and the clamping piece is selectively clamped in any gear adjusting hole; wherein,,

when the support upper pipe extends to the uppermost part of the support lower pipe, the distance between the lowest gear adjusting hole and the lower end of the support upper pipe is H, and the distance H is more than 0mm;

and the supporting footing is connected to the lower end of the supporting lower pipe.

2. The height adjustable support foot assembly of claim 1 wherein the spacing H is 25mm-50mm.

3. The height adjustable support foot assembly according to claim 1, wherein the locking means comprises:

the operating piece is movably arranged at the upper end of the support upper tube;

the driving piece is arranged between the operating piece and the clamping piece in a linkage way, and the operating piece drives the driving piece to drive the clamping piece to be separated from the clamping of the clamping hole.

4. A height adjustable support foot assembly according to claim 3, wherein the locking device further comprises: the matching seat is arranged on the support upper pipe, a guide limit groove is defined on the matching seat or between the matching seat and the support upper pipe, and the clamping piece is matched in the guide limit groove.

5. The supporting leg assembly with adjustable height according to claim 4, wherein the matching seat is provided with a first positioning hole, the supporting upper tube is provided with a second positioning hole, two ends of the clamping piece are respectively matched in the first positioning hole and the second positioning hole, the first positioning hole and the second positioning hole form the guiding limiting groove, and one end of the clamping piece can extend from the second positioning hole and be inserted into the gear adjusting hole under the driving of the driving piece.

6. The height adjustable support foot assembly according to claim 4, wherein the engagement member is provided with a stop block;

the driving member includes: the driving block is provided with a matching groove, the driving block is sleeved on the clamping piece through the matching groove, the driving block is positioned between the stop block and the surface of the gear adjusting hole of the support lower pipe, the surface of the driving block facing the stop block is a driving surface, and the distance between at least two positions of the driving surface in the length direction of the support lower pipe and the surface of the gear adjusting hole is unequal.

7. The height adjustable support foot assembly according to claim 6, wherein the drive block is located outside the support upper tube, the mating seat being covered on the drive block, the drive further comprising: the driving rod is connected with the driving block, and the upper end of the driving rod is matched with the operating piece.

8. The adjustable height support foot assembly according to claim 7, wherein the support upper tube is provided with at least one stop block, the stop block being located between the drive block and the operating member, the drive rod being engaged with the stop block.

9. The height-adjustable support foot assembly according to claim 4, wherein the support upper tube surface is provided with a first profile and a second profile, the first profile and the second profile being provided along the length direction of the support upper tube, the first profile and the second profile being L-shaped in cross section, the ends of the cross section of the first profile and the second profile being provided toward each other, the first profile and the second profile being formed by a protrusion of a portion of the tube wall of the support upper tube;

the first profile strip and the second profile strip define the profile groove therebetween, and the matching seat is at least partially clamped in the profile groove.

10. A play yard comprising a bed body and a height adjustable support foot assembly according to any one of claims 1 to 9, the bed body being supported on the support foot assembly.

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