CN213786447U

CN213786447U - But crib of handrail height adjustment

Info

Publication number: CN213786447U
Application number: CN202021610831.8U
Authority: CN
Inventors: 汪蔚; 张洪晨
Original assignee: Butong Internet Of Things Technology Shanghai Co ltd
Current assignee: Butong Internet Of Things Technology Shanghai Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-07-27
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses a crib with height-adjustable armrests, which comprises a stand column, armrests which are connected with the stand column in a relatively up-down moving way, and an armrest height adjusting mechanism is arranged between the armrests and the stand column, wherein the armrest height adjusting mechanism comprises a connecting piece which is connected with the stand column in a relatively up-down moving way, a knob which is connected with the connecting piece in a relatively rotating way, a positioning piece which is connected with the connecting piece in a relatively moving way, a positioning hole which is arranged on the stand column, and a first elastic resetting piece which can drive the positioning piece to move towards one side where the knob is located, and the armrests are connected with the connecting piece; only need rotatory knob, under the assistance of first elasticity piece that resets, can make the setting element insert the locating hole and break away from between the locating hole and remove, when the locating element breaks away from the locating hole, the handrail can be relatively upright the post and reciprocate to realize handrail height control, thereby the utility model discloses the height control easy operation of crib handrail is convenient.

Description

But crib of handrail height adjustment

Technical Field

The utility model relates to an infant's product field especially relates to crib.

Background

The crib is widely used in many families as one of important auxiliary tools for taking care of infants. Conventional cribs typically include a plurality of spaced apart uprights, a plurality of armrests, a bottom bracket connected to the underside of the uprights, and two adjacent uprights connected to opposite ends of one of the armrests.

In order to make it convenient to take care of infants, at least one of the armrests of some baby carriages is set to be capable of being adjusted in height, namely the armrests can move up and down relative to the opposite columns, when the armrests are relatively positioned at the highest position, the armrests are positioned at the same height, and under the position, when the baby crib is placed on the adult crib, parents lying on the crib need to sooth the children in the baby crib and get back, which is not very convenient, and the children in the baby crib can not see the parents when waking up, so that the safety sense is lacked; when the armrests are moved downwards to a lower position, the armrests can be flush with the edge of the large bed or slightly higher than the edge of the large bed, parents lying on the large bed can placate and tap children in the baby bed without getting up, so that the baby bed is very convenient, and the parents on the large bed can be seen by the children lying in the baby bed without getting up, so that the baby bed has a sense of safety.

In order to realize the purpose of adjusting the height of the handrail, the two ends of the handrail and the corresponding upright posts can move up and down relatively to be connected, a height adjusting mechanism is arranged between the two ends of the handrail and the corresponding upright posts, and the handrail can move between different heights relative to the upright posts by operating the height adjusting mechanism.

The operation of the height adjustment of the armrests of the traditional crib is more complicated, so that the height adjustment of the armrests is not very convenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide a crib with height-adjustable armrests, which is simple and convenient in operation of height adjustment of the armrests.

In order to achieve the above object, the utility model adopts the following technical scheme:

a crib with height-adjustable armrests comprises a vertical column and armrests which can be connected to the vertical column in a relatively up-down moving mode, wherein an armrest height adjusting mechanism is arranged between each armrest and the vertical column, and each armrest height adjusting mechanism comprises

A connecting member connected to the pillar so as to be movable up and down relative to the pillar, the armrest being connected to the connecting member;

a knob relatively rotatably connected to the connecting member;

the positioning piece is connected with the connecting piece in a relatively movable manner, and one side of the positioning piece is matched with the knob;

one or more positioning holes which are arranged at intervals up and down and are arranged on the upright post and can be inserted by the other side of the positioning piece;

the first elastic reset piece can drive the positioning piece to move towards one side where the knob is located and is arranged between the positioning piece and the connecting piece or/and the upright post;

when the positioning piece is separated from the positioning hole, the handrail can move up/down relative to the upright post.

The armrest height adjusting mechanism further comprises a second elastic resetting piece which can drive the knob to reset and rotate, and the second elastic resetting piece is arranged between the knob and the connecting piece or/and the upright post.

An end face is arranged on one side of the knob facing the upright post, an accommodating part is formed on one side of the end face in a concave mode, and a transition inclined plane is formed between the end face and the accommodating part; when the knob is rotated to the position that the end face faces the positioning piece, the end face is abutted against one side of the positioning piece, and the other side of the positioning piece is inserted into the positioning hole; when the knob is rotated to the state that the accommodating part faces the positioning part, the positioning part moves towards the accommodating part to be separated from the positioning hole under the action of the first elastic resetting part.

The knob is characterized in that an accommodating space is arranged in the connecting piece, a long through hole is formed in the side wall of the accommodating space, one side of the knob is connected in the accommodating space in a relatively rotating mode, and the other side of the knob extends out of the connecting piece from the long through hole.

The side wall of the accommodating space, facing one side of the upright post, is provided with a through hole, the positioning part can be arranged in the through hole in a relatively movable manner, and the end face, the accommodating part and the transition inclined plane are arranged on the part of the knob, which is positioned in the accommodating space.

The connecting piece comprises a first connecting seat and a second connecting seat, wherein the first connecting seat is connected to the upright column in a relatively up-and-down moving mode, the second connecting seat is fixedly connected to one side, away from the upright column, of the first connecting seat, and the first connecting seat and the second connecting seat form the accommodating space and the long through hole together; the through hole is arranged on the first connecting seat.

The first connecting seat extends towards one side of deviating from the stand and is provided with a first abutting portion, correspondingly, a second abutting portion is arranged on the second connecting seat, and the first abutting portion abuts against the second abutting portion.

The second reset elastic piece is arranged in the accommodating space.

The knob includes a body, certainly connecting portion that body one side is toward extending outward, certainly the one end that the knob was kept away from to connecting portion is toward the operating portion that extends outward, the body connect in relatively rotatoryly in the accommodation space, the operating portion is located outside the connecting piece, connecting portion wear to locate the through-length hole, terminal surface, accommodation portion and transition inclined plane set up in on the knob body.

The vertical column is concavely provided with a dovetail groove extending up and down, one side of the connecting piece facing the vertical column is provided with a corresponding sliding block, and the sliding block is matched and connected with the dovetail groove.

The utility model has the advantages that:

1. because the utility model adopts the handrail height adjusting mechanism, when the height of the handrail needs to be adjusted, the positioning piece can automatically separate from the positioning hole on the upright post only by rotating the knob under the action of the first elastic reset piece, so that the handrail can move up and down relative to the upright post to adjust the relative height of the handrail, thus the operation of adjusting the height of the handrail of the utility model is very simple and convenient;

2. the arrangement of the transitional inclined plane between the end surface of one side of the knob, which faces the positioning piece, and the accommodating space ensures that when the positioning piece is aligned with the positioning hole and the knob is rotated reversely, the transitional inclined plane can push the positioning piece to move so that one side of the positioning piece is inserted into the positioning hole again, and the operation of repositioning the handrail is very simple and convenient; the setting of the second elasticity piece that resets between knob and the connecting piece for when the setting element aligns with the locating hole, the knob can reset under the promotion of piece automatically rotatory and promote setting element one side and insert in the locating hole at the second elasticity, makes the handrail be located this relative height promptly automatically, thereby further makes the height control operation of handrail more simple and convenient.

Drawings

FIG. 1 is a schematic view of the infant bed of the present invention with the armrests in the raised position;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an exploded view of the first embodiment according to FIG. 2;

FIG. 4 is an exploded view of the second schematic illustration according to FIG. 2;

FIG. 5 is an enlarged view of a cross section taken along the line B-B in FIG. 2;

FIG. 6 is an enlarged view of a cross section taken along the direction C-C in FIG. 2;

FIG. 7 is an enlarged cross-sectional view of the positioning member in the axial direction;

FIG. 8 is a first schematic view showing the fitting of the positioning member with the knob of the crib according to the present invention;

FIG. 9 is a second enlarged view of the knob and positioning member of the crib of the present invention;

FIG. 10 is a schematic view of an armrest of the crib of the present invention in a lowered position;

FIG. 11 is a schematic view of another embodiment of the crib of the present invention with the armrests in a raised position;

fig. 12 is a schematic view of the armrest of another embodiment of the crib of the present invention in a lower position.

Detailed Description

As shown in fig. 1 to 10, the baby crib of the present invention comprises a column 10, a handrail 20 connected to the column 10 and capable of moving up and down relatively, and a handrail height adjusting mechanism disposed between the handrail 20 and the column 10, wherein the handrail height adjusting mechanism comprises

A connecting member 1 connected to the column 10 to be movable up and down, the handle 20 being connected to the connecting member 1;

a knob 2 relatively rotatably connected to the link 1;

the positioning piece 3 is connected with the connecting piece 1 in a relatively movable manner, and one side of the positioning piece 3 is matched with the knob 2;

one or more positioning holes 101 spaced up and down, which are disposed on the column 10 and into which the other side of the positioning element 3 can be inserted;

the first elastic reset piece 4 can drive the positioning piece 3 to move towards one side where the knob 2 is located, and is arranged between the positioning piece 3 and the connecting piece 1 or/and the upright post 10;

when the knob 2 is rotated, the positioning member 3 can move between being inserted into the positioning hole 101 and being separated from the positioning hole 101, and when the positioning member 3 is separated from the positioning hole 101, the armrest 20 can move up/down relative to the upright post 10.

Preferably, the armrest height adjusting mechanism further comprises a second elastic reset member 5 disposed between the knob 2 and the connecting member 1 and capable of driving the knob 2 to reset and rotate.

In the present embodiment, one side of the knob 2 facing the upright post 10 has an end surface 221, and one side of the end surface 221 is recessed to form an accommodating portion 222, and a transition inclined surface 223 is formed between the end surface 221 and the accommodating portion 222; when the knob 2 is rotated until the end surface 221 faces the positioning element 3, the end surface 221 abuts against one side of the positioning element 3, and the other side of the positioning element 3 is inserted into the positioning hole 101; when the knob 2 is rotated to the position where the accommodating portion 222 faces the positioning member 3, the positioning member 3 moves towards the accommodating portion 222 to be separated from the positioning hole 101 under the action of the first elastic resetting member 4. The arrangement is such that when the positioning member 3 is aligned with the positioning hole 101 and the knob 2 is rotated reversely, the transition slope 223 can push the positioning member 3 to move and be inserted into the positioning hole 101 again, so that the handrail 20 is positioned at the relative height, and the operation of repositioning the handrail 20 after height adjustment is very simple and convenient; and the second elastic resetting piece 5 is arranged, so that after the knob 2 is released, when the positioning piece 3 is aligned with the positioning hole 101, the knob 2 can automatically rotate under the pushing of the second elastic resetting piece 5, the transition inclined surface 223 can automatically push the positioning piece 5 to move and insert into the positioning hole 101, and after the knob 2 is reset, namely, the end surface 221 is abutted against one side of the positioning piece 2 again, so that the armrest 20 is automatically positioned at the relative height, and the height adjustment operation of the armrest 20 is further simpler and more convenient.

The connecting piece is characterized in that an accommodating space 11 is arranged in the connecting piece 1, a long through hole 12 is formed in the side wall of the accommodating space 11, one side of the knob 2 can be connected in the accommodating space 11 in a relatively rotating mode, and the other side of the knob extends out of the connecting piece 1 from the long through hole 12 to facilitate operation.

A through hole 111 is formed in the side wall of the accommodating space 11 facing the side of the upright post 10, and the positioning element 3 is partially and relatively movably disposed in the through hole 111, so that the positioning element 3 and the connecting element 1 can be relatively movably connected; the end surface 221, the accommodating portion 222 and the transition slope 223 are disposed on a portion of the knob 2 located in the accommodating space 11.

The first elastic reset piece 4 is disposed between the positioning piece 3 and the connecting piece 1 or/and the column 10, that is, the first elastic reset piece 4 may be disposed between the positioning piece 3 and the connecting piece 1, or between the positioning piece 3 and the column 10, or the first elastic reset piece 4 may be disposed between the positioning piece 3, the connecting piece 1, and the column 10. In this embodiment, the first elastic restoring member 4 is disposed between the positioning member 3 and the connecting member 1. Specifically, the through hole 111 includes a first section 1111 and a second section 1112 which are communicated with each other, the first section 1111 is located at a side facing the accommodating space 11, the second section 1112 is located at a side facing the upright post 10, and a cross-sectional area of the first section 1111 is larger than a cross-sectional area of the second section 1112; correspondingly, the positioning member 3 includes a head portion 31 and a rod portion 32 extending from the head portion 31 to a side of the upright post 10; the first elastic restoring member 4 is a spring, which is sleeved on the rod portion 32, and one end of the spring abuts against the head portion 31, and the other end abuts against the wall portion of the first section of hole 1111. When the knob 2 is rotated to the position that the receiving portion 222 faces the through hole 111, the restoring force of the first elastic restoring member 4 drives the positioning member 3 to move toward the knob 2, so that the rod portion 32 is disengaged from the positioning hole 101.

In other embodiments, the first elastic restoring member 3 may also be disposed in the positioning hole 101 and located between one side of the positioning member 3 and a wall of the positioning hole 101, that is, the first elastic restoring member 4 is only located in the positioning hole 101, and when the positioning member 3 is inserted into the positioning hole 101, the first elastic restoring member is compressed, and when the knob 2 is rotated to the accommodating portion 222 facing the through hole 111, the restoring force of the first elastic restoring member 4 drives the positioning member 3 to move toward the knob 2 and disengage from the positioning hole 101, but after the elastic force is restored, the first elastic restoring member 4 does not extend into the through hole 111 of the connecting member 1 and only extends into the positioning hole 101. Thus, the first elastic restoring member 4 not only serves to drive the positioning member 3 to move toward the side of the knob 2, but also does not extend into the through hole 111 to hinder the connecting member 1 from moving up and down relative to the upright post 10.

The second elastic reset piece 5 is disposed in the accommodating space 11. In this embodiment, the second elastic reset piece 5 is a spring, the part of the knob 2 located in the accommodating space 11 is provided with a first spring seat 21, the connecting piece 1 is provided with a second spring seat 13 on the inner wall of the accommodating space 11, and two ends of the second elastic reset piece 5 are respectively connected to the first spring seat 21 and the second spring seat 13, so that the second elastic reset piece 5 is not easy to shift, and the automatic reset rotation of the knob 2 is ensured. And the second elastic reset piece 5 is arranged in the accommodating space 11, so that the automatic reset function of the knob 2 can be prevented from being influenced by foreign objects.

The knob 2 comprises a body 22, a connecting portion 23 extending outwards from one side of the body 22, and an operating portion 24 extending outwards from one end, far away from the knob 2, of the connecting portion 23, the body 22 can be connected to the accommodating space 11 in a relatively rotating manner, the operating portion 24 is located outside the connecting piece 1, the connecting portion 23 penetrates through the long through hole 12, and when the knob 2 rotates relative to the connecting piece 1, the connecting portion 23 rotates and moves along the long through hole 12. In this embodiment, the through-hole 12 set up in on the last lateral wall of accommodation space 11, thereby operation portion 24 is located outside connecting piece 1 upside, so, is more convenient for pass through operation portion 24 rotation knob 2, and then makes the utility model discloses crib handrail height adjustment mechanism's operation is more convenient. The first spring seat 21 is provided on the body 22. The end surface 221, the accommodating portion 222 and the transition slope 223 are disposed on the body 22 of the knob 2.

In this embodiment, the connecting member 1 includes a first connecting seat 14 connected to the upright 10 in a manner of moving up and down relatively, and a second connecting seat 15 fixedly connected to the first connecting seat 14, wherein the first connecting seat 14 and the second connecting seat 15 together form the accommodating space 11 and the through hole 12.

Preferably, the second connecting seat 15 is connected to a side of the first connecting seat 14 away from the upright post 10, the knob body 22 is located in the accommodating space 11, that is, between the first connecting seat 14 and the second connecting seat 15, and the through hole 111 is disposed on the first connecting seat 14.

Preferably, the first connecting seat 14 extends to a side away from the upright post 10 to form a first abutting portion, and correspondingly, the second connecting seat 15 is provided with a second abutting portion, and the first abutting portion abuts against the second abutting portion. Therefore, the connection between the first connecting seat 14 and the second connecting seat 15 can be further stabilized, so as to further ensure that the second connecting seat 15 can move up and down together with the first connecting seat 14 after the positioning element 3 is separated from the positioning hole 101, i.e. ensure that the armrest 20 can move up and down.

The first abutting portion and the second abutting portion may be both located outside the accommodating space 11, as shown in 140, 150 in fig. 2 to 5. The first abutting portion and the second abutting portion may also be located in the accommodating space 11, as shown at 141 and 151 in fig. 3 to 5. A protruding portion 151 is convexly arranged on a side wall of the second connecting seat 15 facing one side of the first connecting seat 14, correspondingly, a protruding portion 141 is convexly arranged on one side of the first connecting seat 14 facing one side of the second connecting seat 15, and the protruding portion 151 abuts against the protruding portion 141. In the present embodiment, the second spring seat 13 is disposed on a side of the protruding portion 151 facing away from the protruding portion 141.

In this embodiment, the through hole is disposed on the upper side of the second connecting seat 14, which is equivalent to forming a notch on the upper side of the second connecting seat 14 to form the through hole 12.

In this embodiment, the armrest 20 is fixedly connected to the second connecting seat 15. Thus, there is no need to additionally provide a structure for moving the handrail 20 on the column 10, and the handrail 20 does not interfere with the column 10 when moving up and down.

In this embodiment, the crib includes a plurality of the pillars 10 and a plurality of the armrests 20, which are arranged at intervals, two adjacent pillars 10 are connected to two ends of one of the armrests 20, two ends of at least one of the armrests 20 are connected to the corresponding pillar 10 in a manner of being capable of moving up and down relatively, and the armrest height adjusting mechanism is arranged between the two ends of the armrest 20 and the corresponding pillar 20. The crib further includes a bottom bracket 30 connected to the lower side of the plurality of pillars 10.

In a normal use state, the armrest 20 is positioned on the upper side of the column 10. Specifically, under the action of the second elastic restoring member 5, the end surface 221 of the knob 2 is located in front of the through hole 111 of the second connecting member 15, the head 31 of the positioning member 3 abuts against the end surface 221 of the knob 2, and the other side of the positioning member is inserted into the positioning hole 101 on the uppermost side of the upright post 10. At this time, the first connecting seat 14 cannot move up and down with respect to the column 10, and thus the armrest 20 cannot move up and down with respect to the column 10, and the armrest 20 is positioned at the height position with respect to the column 10.

When the height of the armrest 20 is to be adjusted downwards, the operating part 24 of the knob 2 is pushed to rotate the knob 2 (in the direction of the arrow in fig. 5), and in the process, the second elastic resetting piece 5 is compressed; and along with the rotation of the knob 2, the end surface 221 is no longer located in front of the through hole 111 of the second connecting part 1 and no longer forms an abutting joint with the head 31 of the positioning part 3, when the knob 2 rotates to the state that the accommodating part 222 faces the through hole 111 of the second connecting part 1, under the action of the first elastic resetting part 4, the positioning part 3 moves towards the side where the accommodating part 222 is located, and the rod part 32 of the positioning part 3 is separated from the positioning hole 101, at this time, the connecting part 1, the knob 2 and the positioning part 3 can move up and down together relative to the upright post 10, so that the armrest 20 connected with the connecting part 1 can also move up and down relative to the upright post 10. At this time, the armrest 20 can be moved downward, and the knob 2 can be released after the positioning member 3 is out of alignment with the positioning hole 101. Because the positioning member 3 moves downward together with the connecting member 1 and the armrest 20, when the positioning member 3 is moved to be aligned with another positioning hole 101, the knob 2 rotates in the initial direction (i.e. the direction opposite to the arrow in fig. 5) under the action of the second elastic resetting member 5; in the rotation process of the knob 2, when the transitional inclined surface 223 between the knob accommodating portion 222 and the end surface 221 contacts the head 31 of the positioning element 3, the transitional inclined surface 223 pushes the positioning element 3 to move toward one side of the column 10, that is, the other side of the positioning element 3 moves into the positioning hole 101, and when the knob 2 rotates until the end surface 221 of the knob again abuts against the head 31 of the positioning element, the other side of the positioning element 3 is inserted into the positioning hole 101 again. At this time, the first connecting seat 14 cannot move up and down with respect to the upright post 10, that is, the connecting member 1 cannot move up and down with respect to the upright post 10, and the armrest 20 is positioned at this height.

As described above, as long as the knob 2 is rotated, the positioning member 3 can be automatically separated from the positioning hole 101 of the upright post 10 under the action of the first elastic restoring member 4, so that the armrest 20 can move up and down relative to the upright post 10 to achieve the purpose of adjusting the height of the armrest 10, and thus, the operation of adjusting the height of the armrest of the crib of the present invention is simple and convenient; in addition, due to the arrangement of the transition inclined surface 223, when the positioning member 3 is aligned with the positioning hole 101 and the knob 2 is rotated reversely, the transition inclined surface 223 can push the positioning member 3 to move so that the other side of the positioning member 3 is inserted into the positioning hole 101 again, so that the handrail 20 is positioned again, that is, the operation of positioning the handrail 20 again is very simple and convenient; the second elastic resetting piece 5 is arranged, so that after the knob 2 is released, when the positioning piece 3 is aligned with the positioning hole 101, the knob 2 can automatically rotate under the pushing of the second elastic resetting piece 5 to push one side of the positioning piece 3 to be inserted into the positioning hole 101 again, namely, the armrest 20 is automatically positioned at the relative height, and the height adjustment operation of the armrest 10 is further simpler and more convenient; furthermore, the body 22 of the knob 2 is positioned in the accommodating space 11 of the connecting piece 1, so that the body 22 is not interfered by foreign objects when rotating, the rotation of the knob 2 is not influenced, and the smooth operation of the armrest height adjusting mechanism is ensured; the second elastic reset piece 5 is also arranged in the accommodating space 11, so that the second elastic reset piece is not easy to be interfered by foreign objects, thereby ensuring the automatic reset of the knob 2 and further ensuring that the height adjustment operation of the baby crib handrail 20 is more convenient.

In this embodiment, the upright post 10 is provided with a plurality of positioning holes 101 spaced from each other up and down, so that the armrest 20 can be adjusted to different heights as required to meet different use requirements.

In other embodiments, as shown in fig. 11 and 12, the present invention can also be applied to a baby crib without the positioning holes 101 on the lower side of the columns 10, and only the positioning holes 101 on the upper side of the columns are provided, and correspondingly, a middle frame 40 for a child to sit/lie on is provided, wherein the outer side of the middle frame 40 is connected with the middle parts of the columns 10. In actual use, a mattress or the like is laid on the middle support 40 for the infant to sit/lie. When the handrail 20 moves down for a certain distance, the lower end of the handrail 20 contacts with the middle support 40 and cannot move down any more, so that the downward movement of the handrail 20 can be limited.

In this embodiment, preferably, the vertical column 10 is concavely provided with a dovetail groove 102 extending vertically, one side of the connecting member 1 facing the vertical column 10 is provided with a corresponding sliding block 142, and the sliding block 142 is connected with the dovetail groove 102 in a matching manner, so that not only the handrail 20 can move up and down relative to the vertical column 10 more smoothly, but also the separation of the connecting member 1 from the vertical column 10 can be avoided, i.e. the separation of the handrail 20 from the vertical column 10 is prevented, thereby ensuring the safety of the connection between the handrail 20 and the vertical column, and further ensuring the basis of height adjustment of the handrail 20; and the mating structure of the dovetail groove 102 and the slider 142 is relatively simple to implement.

In this embodiment, the sliding block 142 is disposed on a side of the first connecting seat 14 facing the upright 10, so that the connecting member 1 is more easily assembled with the upright 10.

In this embodiment, preferably, the upright 10 includes a main body 103, an upper connecting seat 104 and a lower connecting seat 105 (as shown in fig. 1) fixedly connected to the upper and lower ends of the main body 103, respectively, and the dovetail slot 102 is disposed on the main body 103, so that the lower end of the upper connecting seat 104 forms a stop for the upper end of the dovetail slot 102, and the upper end of the lower connecting seat 105 forms a stop for the lower end of the dovetail slot 102. That is, as for the whole of the upright post 10, the dovetail groove 102 has a stop at both upper and lower ends, so that the first connecting seat 14 cannot move downward or downward to separate from the upright post 10, thereby further ensuring the safety of the connection between the handrail 20 and the upright post 10. When assembling, the main body 103 can be connected to one of the upper and lower connecting

seats

104, 105, the slider 142 of the first connecting seat 14 is slid into the dovetail groove 102, and then the other of the upper and lower connecting

seats

104, 105 is connected to the main body 103, so that the assembly is simple and easy.

The above detailed description of the embodiments of the present invention is only for the preferred embodiments of the present invention, and the present invention should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a but crib of handrail height adjustment which includes the stand, can relatively connect in with moving up and down the handrail of stand, and be provided with handrail height adjustment mechanism between handrail and the stand, its characterized in that: the armrest height adjusting mechanism comprises

a knob relatively rotatably connected to the connecting member;

2. The crib as claimed in claim 1, in which the armrests are adjustable in height: the armrest height adjusting mechanism further comprises a second elastic resetting piece which can drive the knob to reset and rotate, and the second elastic resetting piece is arranged between the knob and the connecting piece or/and the upright post.

3. The crib as claimed in claim 1, in which the armrests are adjustable in height: an end face is arranged on one side of the knob facing the upright post, an accommodating part is formed on one side of the end face in a concave mode, and a transition inclined plane is formed between the end face and the accommodating part; when the knob is rotated to the position that the end face faces the positioning piece, the end face is abutted against one side of the positioning piece, and the other side of the positioning piece is inserted into the positioning hole; when the knob is rotated to the state that the accommodating part faces the positioning part, the positioning part moves towards the accommodating part to be separated from the positioning hole under the action of the first elastic resetting part.

4. The crib as claimed in claim 2, in which the armrests are adjustable in height: an end face is arranged on one side of the knob facing the upright post, an accommodating part is formed on one side of the end face in a concave mode, and a transition inclined plane is formed between the end face and the accommodating part; when the knob is rotated to the position that the end face faces the positioning piece, the end face is abutted against one side of the positioning piece, and the other side of the positioning piece is inserted into the positioning hole; when the knob is rotated to the state that the accommodating part faces the positioning part, the positioning part moves towards the accommodating part to be separated from the positioning hole under the action of the first elastic resetting part.

5. The crib as claimed in claim 1, in which the armrests are adjustable in height: the knob is characterized in that an accommodating space is arranged in the connecting piece, a long through hole is formed in the side wall of the accommodating space, one side of the knob is connected in the accommodating space in a relatively rotating mode, and the other side of the knob extends out of the connecting piece from the long through hole.

6. The crib as claimed in claim 2, in which the armrests are adjustable in height: the knob is characterized in that an accommodating space is arranged in the connecting piece, a long through hole is formed in the side wall of the accommodating space, one side of the knob is connected in the accommodating space in a relatively rotating mode, and the other side of the knob extends out of the connecting piece from the long through hole.

7. The crib as claimed in claim 3, in which the armrests are adjustable in height: the knob is characterized in that an accommodating space is arranged in the connecting piece, a long through hole is formed in the side wall of the accommodating space, one side of the knob is connected in the accommodating space in a relatively rotating mode, and the other side of the knob extends out of the connecting piece from the long through hole.

8. The crib as claimed in claim 4, in which the armrests are adjustable in height: the knob is characterized in that an accommodating space is arranged in the connecting piece, a long through hole is formed in the side wall of the accommodating space, one side of the knob is connected in the accommodating space in a relatively rotating mode, and the other side of the knob extends out of the connecting piece from the long through hole.

9. The crib as claimed in claim 7, in which the armrests are adjustable in height: the side wall of the accommodating space, facing one side of the upright post, is provided with a through hole, the positioning part can be arranged in the through hole in a relatively movable manner, and the end face, the accommodating part and the transition inclined plane are arranged on the part of the knob, which is positioned in the accommodating space.

10. The crib as claimed in claim 8, in which the armrests are adjustable in height: the side wall of the accommodating space, facing one side of the upright post, is provided with a through hole, the positioning part can be arranged in the through hole in a relatively movable manner, and the end face, the accommodating part and the transition inclined plane are arranged on the part of the knob, which is positioned in the accommodating space.

11. The crib as claimed in claim 9, in which: the connecting piece comprises a first connecting seat and a second connecting seat, wherein the first connecting seat is connected to the upright column in a relatively up-and-down moving mode, the second connecting seat is fixedly connected to one side, away from the upright column, of the first connecting seat, and the first connecting seat and the second connecting seat form the accommodating space and the long through hole together; the through hole is arranged on the first connecting seat.

12. The crib as claimed in claim 10, in which: the connecting piece comprises a first connecting seat and a second connecting seat, wherein the first connecting seat is connected to the upright column in a relatively up-and-down moving mode, the second connecting seat is fixedly connected to one side, away from the upright column, of the first connecting seat, and the first connecting seat and the second connecting seat form the accommodating space and the long through hole together; the through hole is arranged on the first connecting seat.

13. The crib as claimed in claim 11, in which: the first connecting seat extends towards one side of deviating from the stand and is provided with a first abutting portion, correspondingly, a second abutting portion is arranged on the second connecting seat, and the first abutting portion abuts against the second abutting portion.

14. The crib as claimed in claim 12, in which: the first connecting seat extends towards one side of deviating from the stand and is provided with a first abutting portion, correspondingly, a second abutting portion is arranged on the second connecting seat, and the first abutting portion abuts against the second abutting portion.

15. The crib as claimed in claim 6, in which: the second elastic reset piece is arranged in the accommodating space.

16. The armrest height adjustable crib according to claim 8 or 10 or 12 or 14, characterized in that: the second elastic reset piece is arranged in the accommodating space.

17. The crib as claimed in any of claims 7 to 14, wherein: the knob includes a body, certainly connecting portion that body one side is toward extending outward, certainly the one end that the knob was kept away from to connecting portion is toward the operating portion that extends outward, the body connect in relatively rotatoryly in the accommodation space, the operating portion is located outside the connecting piece, connecting portion wear to locate the through-length hole, terminal surface, accommodation portion and transition inclined plane set up in on the knob body.

18. The armrest height adjustable crib of claim 16, wherein: the knob includes a body, certainly connecting portion that body one side is toward extending outward, certainly the one end that the knob was kept away from to connecting portion is toward the operating portion that extends outward, the body connect in relatively rotatoryly in the accommodation space, the operating portion is located outside the connecting piece, connecting portion wear to locate the through-length hole, terminal surface, accommodation portion and transition inclined plane set up in on the knob body.

19. The armrest height adjustable crib according to any one of claims 1 to 15, 18, characterized in that: the vertical column is concavely provided with a dovetail groove extending up and down, one side of the connecting piece facing the vertical column is provided with a corresponding sliding block, and the sliding block is matched and connected with the dovetail groove.

20. The armrest height adjustable crib of claim 16, wherein: the vertical column is concavely provided with a dovetail groove extending up and down, one side of the connecting piece facing the vertical column is provided with a corresponding sliding block, and the sliding block is matched and connected with the dovetail groove.

21. The crib as claimed in claim 17, in which: the vertical column is concavely provided with a dovetail groove extending up and down, one side of the connecting piece facing the vertical column is provided with a corresponding sliding block, and the sliding block is matched and connected with the dovetail groove.