CN116491788A - Adjustable surrounding rod and folding bed - Google Patents

Abstract

The application relates to an adjustable girt pole and folding bed, include: the adjustable end of the rod body is close to the mounting sleeve, and the rod body is rotationally connected with the sliding sleeve; the sliding sleeve is configured to be arranged on the sliding groove at the side edge of the mounting sleeve in a vertical sliding manner; the pull pin is inserted into the adjustable end of the rod body along the length direction of the rod body, and one end of the pull pin, facing the mounting sleeve, is provided with a connecting guide block; the locking pin is arranged at one end of the pull pin, facing the mounting sleeve, and is inserted into the locking groove of the mounting sleeve to be interlocked with the mounting sleeve; the surface of the lock pin is provided with a guide slideway which is matched and clamped with the connecting guide block, and the extending track of the guide slideway is consistent with the moving track of the connecting guide block when the rod body rotates and is used for providing guide when the rod body rotates; and the driving component is connected with the pull pin in a matched manner and is used for driving the pull pin to move in a direction away from the mounting sleeve so as to drive the lock pin to be separated from the locking groove of the mounting sleeve, thereby releasing the interlocking between the lock pin and the mounting sleeve.

Description

Adjustable surrounding rod and folding bed

Technical Field

The invention relates to the field of bed design, in particular to an adjustable surrounding rod and a folding bed.

Background

Existing child beds are used primarily to restrain the baby inside, thereby providing a safe play space sleeping space.

The existing basket framework is inconvenient to detach after the basket framework is used, bolts are required to be detached at the framework joints by a screwdriver, and the detached bolts and the framework joints are easy to lose during storage, so that the normal installation and use of the follow-up play yard are affected.

To solve this problem, folding and storing the unused child bed can be considered. However, the existing foldable child bed can be folded, but the folding hinge points of the top fence and the mounting sleeve are fixed, so that the height of the top fence cannot be freely adjusted while being folded, and therefore, the foldable child bed cannot meet the use requirements of multiple scenes and multiple demands, and is not beneficial to market popularization.

Disclosure of Invention

Based on this, it is necessary to provide an adjustable girt and folding bed which address at least part of the problems set forth above.

An adjustable girt comprising:

the adjustable end of the rod body is close to the mounting sleeve, and the rod body is rotationally connected with the sliding sleeve;

the sliding sleeve is configured to be arranged on the sliding groove at the side edge of the mounting sleeve in a vertical sliding manner;

the pull pin is inserted into the adjustable end of the rod body along the length direction of the rod body, and one end of the pull pin, facing the mounting sleeve, is provided with a connecting guide block;

the locking pin is arranged at one end of the pull pin, facing the mounting sleeve, and is inserted into the locking groove of the mounting sleeve to be interlocked with the mounting sleeve; the surface of the lock pin is provided with a guide slideway which is matched and clamped with the connecting guide block, and the extending track of the guide slideway is consistent with the moving track of the connecting guide block when the rod body rotates and is used for providing guide when the rod body rotates;

and the driving component is connected with the pull pin in a matched manner and is used for driving the pull pin to move in a direction away from the mounting sleeve so as to drive the lock pin to be separated from the locking groove of the mounting sleeve, thereby releasing the interlocking between the lock pin and the mounting sleeve.

The adjustable surrounding rod and the folding bed have the following beneficial technical effects:

(1) The interlocking state of the rod body and the mounting sleeve is stable; after the interlocking between the lock pin and the mounting sleeve is released, the locking between the sliding sleeve at the adjustable end of the rod body and the mounting sleeve is also released, and the sliding sleeve can be operated to slide up and down along the mounting sleeve at the moment, so that the height position of the rod body is adjusted and changed up and down, and the height can be freely adjusted when the sliding sleeve is used as the upper surrounding rod of the crib, thereby being capable of meeting the use requirements of multiple scenes and multiple demands and being beneficial to market popularization.

(2) In addition, when adjusting the height of the rod body, the rod body can also rotate relative to the sliding sleeve, the guide slide way provides guide, the connecting guide block of the pull pin can just slide along the guide slide way on the surface of the lock pin, and the condition of collision or movement interference with the lock pin is avoided, so that the rod body can freely rotate in the use state of interlocking or height adjustment, and the bed body can be flexibly folded and stored at any state at any time.

Drawings

FIG. 1 is a schematic view of a folding bed according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of the mating assembly of the mounting sleeve, adjustable girt, and sliding sleeve of FIG. 1;

FIG. 3 is a perspective view of FIG. 2 with the rod body and the sliding sleeve omitted;

fig. 4 is a top view of fig. 3 (with the pull pin in perspective);

FIG. 5 is a schematic view of another view of FIG. 3;

FIG. 6 is a rear view of FIG. 3 with the mounting sleeve and pole omitted;

FIG. 7 is an enlarged view of FIG. 1 at A;

FIG. 8 is a schematic view of a folding process of the folding bed of FIG. 1;

FIG. 9 is a schematic view of the mating assembly of the mounting sleeve, pull pin, and locking pin of FIG. 8;

fig. 10 is an enlarged view at B in fig. 8;

in the drawing the view of the figure,

110. a rod body; 111. a stop pin;

120. a sliding sleeve; 121. a guide bracket;

130. a pull pin; 131. connecting a guide block; 132. a mounting groove; 132a, inclined drive slot walls; 133. a connecting body; 134. a guide groove;

140. a locking pin; 141. a guide slideway; 142. a groove wall;

150. a driving part; 151. an unlock button; 151a, inclined drive surface;

160. a first spring;

170. a second spring;

180. rotating the connecting pin;

10. a mounting sleeve; 11. a chute; 12. a locking groove;

20. a joint connection; 21. a first chute; 22. a second chute;

30. an adjustable enclosing rod; 31. a first guide pin; 32. a second guide pin;

40. a lower surrounding rod;

60. a vertical rod;

70. a support base;

80. a connecting rod group; 81. a first connecting rod; 82. a second connecting rod;

90. unlocking the base; 91. the base is unlocked; 92. and (5) unlocking the base.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

In order that the invention may be readily understood, various embodiments of the invention defined by the claims will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings, which contain various specific details to aid in this understanding, but these details should be regarded as merely exemplary. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Accordingly, one of ordinary skill in the art will recognize that variations and modifications can be made to the various embodiments described herein without departing from the scope of the invention as defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims.

Throughout the description and claims of this specification, the words "comprise" and "include" and variations of the words, such as "comprising" and "comprising", mean "including but not limited to", and are not intended to (and do not) exclude other elements, integers or steps. Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprises," "comprising," and/or "including" as used in this specification are intended to specify the presence of stated features, operations, or elements, but are not intended to limit the presence of one or more other features, operations, and/or elements. Furthermore, in the present disclosure, the terms "comprises" and/or "comprising," are intended to denote the presence of the characteristics, quantity, operation, elements, and components disclosed in the application, or combinations thereof. Thus, the terms "comprising" and/or "having" should be understood to mean that there are additional possibilities of one or more other features, quantities, operations, elements, and components, or combinations thereof.

In the present invention, the expression "or" includes any or all combinations of words listed together. For example, "a or B" may contain a or B, or may contain both a and B.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present.

The terms "upper", "lower", "left", "right", and the like are used herein only to denote relative positional relationships, which may be changed when the absolute position of the object to be described is changed.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-6, in one embodiment of the present invention, an adjustable girt 30 is provided, comprising:

the adjustable end of the rod body 110 is close to the mounting sleeve 10, and the rod body 110 is rotationally connected with the sliding sleeve 120;

a sliding sleeve 120 configured to be slidably installed up and down to the sliding groove 11 at the side of the installation sleeve 10;

a pull pin 130 inserted into the adjustable end of the rod 110 along the length direction of the rod 110, wherein one end of the pull pin 130 facing the installation sleeve 10 is provided with a connecting guide block 131;

a locking pin 140 provided at an end of the pull pin 130 facing the mounting sleeve 10, the locking pin 140 being inserted into the locking groove 12 of the mounting sleeve 10 to interlock with the mounting sleeve 10; the surface of the lock pin 140 is provided with a guide slide way 141 which is matched and clamped with the connecting guide block 131, and the extending track of the guide slide way 141 is consistent with the moving track of the connecting guide block 131 when the rod body 110 rotates and is used for providing guide when the rod body 110 rotates;

and the driving part 150 is cooperatively connected with the pull pin 130 and is used for driving the pull pin 130 to move away from the mounting sleeve 10 so as to drive the lock pin 140 to be separated from the locking groove 12 of the mounting sleeve 10, thereby releasing the interlocking between the lock pin 140 and the mounting sleeve 10.

Specifically, in the normal use state, the lock pin 140 is inserted into the lock groove 12 of the installation sleeve 10 to interlock with the installation sleeve 10, and at this time, the lock pin 140 is inserted into and locked with the installation sleeve 10, so that the rod 110 and the sliding sleeve 120 cannot slide up and down along the installation sleeve 10; when the height needs to be adjusted, the driving part 150 is operated to drive the pull pin 130 to move away from the installation sleeve 10 and drive the lock pin 140 to be separated from the lock groove 12 of the installation sleeve 10, so that the lock between the lock pin 140 and the installation sleeve 10 is released, and the sliding sleeve 120 and the rod body 110 connected with the sliding sleeve 120 can be operated to slide up and down along the installation sleeve 10 to realize the height adjustment of the rod body 110. The locking grooves 12 can be distributed from the mounting sleeve 10 to the upright posts 60 up and down, so that the locking pins 140 can be operated to be inserted into different locking grooves 12 at different heights, and the rod body 110 can be locked at different heights after being adjusted.

In this application, the connection guide block 131 of the pull pin 130 is always engaged with the guide slide way 141 on the surface of the lock pin 140, and in the state of interlocking or releasing the interlocking adjustment height, the rod body 110 can be operated at any time to rotate, specifically, the connection guide block 131 of the pull pin 130 can just slide along the guide slide way 141 on the surface of the lock pin 140 when the rod body 110 rotates relative to the sliding sleeve 120, so that the rod body 110 can be freely rotated in the use state of interlocking or adjusting the height, and the bed body can be flexibly folded and stored at any time in any state.

The interlocking state of the rod body 110 and the mounting sleeve 10 is stable; after the interlocking between the lock pin 140 and the installation sleeve 10 is released, the locking between the sliding sleeve 120 at the adjustable end of the rod body 110 and the installation sleeve 10 is also released, and at the moment, the sliding sleeve 120 can be operated to slide up and down along the installation sleeve 10, so that the height position of the positioning rod body 110 is adjusted up and down, and the positioning rod can be freely adjusted when the positioning rod is used as the upper surrounding rod of the crib, thereby being capable of meeting the use requirements of multiple scenes and multiple demands and being beneficial to market popularization.

In addition, when the height of the rod body 110 is adjusted, the rod body 110 can also rotate relative to the sliding sleeve 120, the guide slide way 141 provides a guide, the connecting guide block 131 of the pull pin 130 can just slide along the guide slide way 141 on the surface of the lock pin 140, and the situation of collision or movement interference with the lock pin 140 is avoided, so that the rod body 110 can freely rotate in the use state of interlocking or height adjustment, and the bed body can be flexibly folded and stored at any state by operation at any time.

Referring to fig. 4, in some embodiments, the driving part 150 includes:

an unlocking button 151 passing through the rod body 110 from the outside and being embedded into the mounting groove 132 on the surface of the pull pin 130, wherein an inclined driving surface 151a forming an included angle with the embedding direction of the unlocking button 151 is arranged on the surface of the unlocking button 151;

the mounting groove 132 is disposed along the length direction of the pull pin 130, and the groove wall far away from the connection guide block 131 is an inclined driving groove wall 132a;

the inclined driving surface 151a of the surface of the unlocking button 151 is attached to the inclined driving groove wall 132a;

the unlock button 151 is configured to: can move in the direction of insertion into the mounting groove 132 to cause the inclined driving surface 151a to slide relative to the inclined driving groove wall 132a to drive the pull pin 130 to move away from the mounting sleeve 10, thereby driving the lock pin 140 out of the lock groove 12 of the mounting sleeve 10 to release the lock pin 140 from the mounting sleeve 10.

When the height needs to be adjusted, the unlocking button 151 is pressed, the inclined driving surface 151a slides relative to the inclined driving groove wall 132a, so that the pull pin 130 is driven to move away from the installation sleeve 10 to drive the lock pin 140 to be separated from the lock groove 12 of the installation sleeve 10, the purpose of releasing the interlocking between the lock pin 140 and the installation sleeve 10 is achieved, and at the moment, the sliding sleeve 120 and the rod body 110 connected with the sliding sleeve 120 can be operated to slide up and down along the installation sleeve 10 to realize the height adjustment of the rod body 110.

The unlocking button 151 of the embodiment has a simple structure, is ingenious in design, does not occupy additional space by utilizing the inner space of the pull pin 130, and can realize unlocking by utilizing the unlocking button 151 to drive the lock pin 140 through a simple design; stable structure and no misoperation.

The operation is unlocked and the hand can be directly pressed manually, so that the hand does not need to be moved between the rod body 110 and the installation sleeve 10 to carry out laborious operation, and the operation is extremely convenient and labor-saving.

Referring to fig. 4, in some embodiments, the locking device further includes a first spring 160 disposed in the mounting groove 132, wherein two ends of the first spring 160 respectively abut against a stop pin 111 disposed in the rod 110 and a groove wall of the mounting groove 132 on a side close to the connection guide block 131, and the stop pin 111 is disposed between the first spring 160 and the unlocking button 151;

the first spring 160 is used for compressing and accumulating elastic potential energy when the unlocking button 151 drives the pull pin 130 to move away from the mounting sleeve 10, and releasing the elastic potential energy and restoring the initial length to drive the pull pin 130 to move reversely to reach the initial interlocking position when the unlocking button 151 is released.

The first spring 160 of this embodiment can shorten the stress and accumulate elastic potential energy when the unlocking button 151 is pressed and the pull pin 130 is driven to move away from the mounting sleeve 10, and lengthen and push the pull pin 130 to move reversely to reach the initial interlocking position when the unlocking button 151 is released, so that a reset structure is not required or the unlocking button 151 is manually pulled out, which is beneficial to simplifying the design structure, saving operation steps and realizing automatic operation.

Referring to fig. 4, in some embodiments, the locking device further includes a second spring 170 disposed in the mounting groove 132, and two ends of the second spring 170 respectively abut against the inner wall of the rod 110 and the unlocking button 151;

the second spring 170 is used for compressing and accumulating elastic potential energy when the unlocking button 151 drives the pull pin 130 to move away from the mounting sleeve 10, and releasing the elastic potential energy and restoring the initial length to drive the unlocking button 151 to move reversely to reach the initial position when the unlocking button 151 is released.

The second spring 170 of this embodiment can shorten the stress and accumulate elastic potential energy when the unlocking button 151 is pressed and the pull pin 130 is driven to move away from the mounting sleeve 10, and lengthen the time when the unlocking button 151 is released and push the unlocking button 151 to move reversely to reach the initial position, so that a reset structure is not required or the unlocking button 151 is manually pulled out, which is beneficial to simplifying the design structure, saving operation steps and realizing automatic operation.

Referring to fig. 3, in some embodiments, a connector 133 is disposed at an end of the pull pin 130 facing the mounting sleeve 10, the connector 133 protrudes from a circumferential wall surface of the rod 110, and the connection guide block 131 is mounted on the connector 133;

the surface of the lock pin 140 is provided with a guide chute, the guide chute is internally provided with the guide slide 141, the connecting guide block 131 is embedded in the guide chute, and the connecting guide block 131 can move along the extending track of the guide slide 141 when the rod 110 rotates.

In this embodiment, the connection body 133 for installing the connection guide block 131 is particularly disposed at the portion protruding from the circumferential wall surface of the rod 110, and is not connected to the lock pin 140 at the end of the rod 110, so that the problems of narrow installation space at the end of the rod 110, difficult installation and easy interference and collision between components can be avoided;

the guide chute is provided with a chute wall 142, and the connecting guide block 131 is directly embedded in the guide chute, so that the embedded form is firmly connected, the pull pin 130 and the lock pin 140 can be stably connected, and the pull pin and the lock pin are always tightly connected and linked during unlocking and locking.

Referring to fig. 3, in some embodiments, the groove wall 142 of the guiding chute and the connecting body 133 are formed on adjacent sides of each other, and are both arc surfaces, and the extending direction of the arc surfaces is consistent with the movement track of the connecting guiding block 131 when the rod 110 rotates, so as to provide guiding when the rod 110 rotates.

Specifically, since the extending direction of the cambered surface is consistent with the movement track of the connecting guide block 131 when the rod body 110 rotates, the connecting body 133 of the pull pin 130 can just slide along the groove wall 142 of the guide chute when the rod body 110 rotates relative to the sliding sleeve 120, so that the rod body 110 rotates to provide guidance, the rod body 110 is guaranteed to rotate along the preset track and not to deviate or collide with the lock pin 140 to interfere, and especially when the rod body 110 rotates at an overlarge angle and the folding degree is overlarge to enable the connecting guide block 131 to deviate from the guide slideway 141, the connecting body 133 of the pull pin 130 and the groove wall 142 of the guide chute still can keep sliding fit with each other, and further the rod body 110 can freely and flexibly rotate at a larger angle all the time, the bed body is operated to realize the maximum folding, and the folding compression is achieved to the minimum size.

Referring to fig. 3, in some embodiments, the end of the pull pin 130 facing the mounting sleeve 10 is provided with a guide slot 134 extending along the length of the pull pin 130; a rotation coupling pin 180 for coupling the rod body 110 and the sliding sleeve 120 is inserted into the guide groove 134, and the diameter of the rotation coupling pin 180 is identical to the width dimension of the guide groove 134 for providing a guide for the movement of the pull pin 130.

The above arrangement ensures that the pull pin 130 moves in the length direction without lateral displacement or rotation about the axis.

Referring to fig. 3, in some embodiments, the sliding sleeve 120 further comprises a guide bracket 121; the guide bracket 121 is provided therein with a guide hole through which the lock pin 140 passes.

Specifically, the lock pin 140 passes through the guide hole of the guide bracket 121 in a matching manner, and can reciprocate under the guide action of the guide hole, so that the lock pin 140 can be ensured to move along the preset direction, and no lateral deviation or rotation can occur.

As shown in fig. 1, in one embodiment of the present invention, there is provided a folding bed including: a plurality of installation cover 10 are equipped with the handrail subassembly between the adjacent installation cover 10, the handrail subassembly includes:

a joint connector 20;

the adjustable surrounding rods 30 are provided with two and are positioned on two sides of the joint connecting piece 20, one ends of the two adjustable surrounding rods 30, which are close to each other, are respectively connected with the joint connecting piece 20 in a rotating way, and one ends of the adjustable surrounding rods 30, which are far away from each other, are connected with the mounting sleeve 10 in a rotating way;

the lower enclosing rods 40 are arranged below the adjustable enclosing rods 30 in parallel, one ends of the two lower enclosing rods 40, which are close to each other, are respectively connected with the joint connector 20 in a rotating way, and one ends of the two lower enclosing rods, which are far away from each other, are respectively connected with the mounting sleeve 10 in a rotating way;

specifically, the lower parts of the installation sleeves 10 are connected with the supporting seats 70 through the vertical rods 60, and an unlocking base 90 is connected between the supporting seats 70 through the connecting rod groups 80;

referring to fig. 8, when the bed frame is folded, the unlocking base 90 is held by hand and lifted upwards, and the plurality of supporting bases 70 are simultaneously closed to the unlocking base 90, and at this time, the four upright posts 60 are pulled to be folded inwards; when the upright 60 is inwards, the upper part 51 of the upright 60 presses the adjustable enclosing rod 30 through the mounting sleeve 10 to enable the adjustable enclosing rod 30 to rotate downwards for folding, meanwhile, the joint connector 20 gradually falls under the adduction action of the upright 60, and the connecting end of the lower enclosing rod 40 and the joint connector 20 rotates and folds relative to the joint connector 20 along with the gradual falling of the joint connector 20;

when the unlocking base 90 is lifted to the highest position, the joint connector 20 and the lower surrounding rod 40 are lowered to the lowest position, and the whole bed body is folded and contracted.

The interlocking state of the rod body 110 of the adjustable surrounding rod 30 and the mounting sleeve 10 is stable; after the interlocking between the lock pin 140 and the installation sleeve 10 is released, the locking between the sliding sleeve 120 at the adjustable end of the rod body 110 and the installation sleeve 10 is also released, at this time, the sliding sleeve 120 can slide up and down along the sliding groove 11, and the sliding groove 11 can extend down to the side surface of the vertical rod 60 all the time, so that the height of the rod body 110 (up to the installation sleeve 10 and down to the bottom end of the vertical rod 60) can be freely adjusted up and down in a larger height range, thereby meeting the use requirements of more scenes and multiple requirements and being beneficial to market popularization. The locking grooves 12 can be distributed from the mounting sleeve 10 to the upright posts 60 up and down, so that the locking pins 140 can be operated to be inserted into different locking grooves 12 at different heights, and the rod body 110 can be locked at different heights after being adjusted.

In addition, while the height of the adjustable enclosing rod 30 is adjusted, the rod body 110 can rotate relative to the sliding sleeve 120, the guide slide way 141 provides guidance, the connecting guide block 131 of the pull pin 130 can just slide along the guide slide way 141 on the surface of the lock pin 140, and the situation of collision or movement interference with the lock pin 140 is avoided, so that the rod body 110 can freely rotate in the use state of interlocking or height adjustment, and the bed body can be flexibly folded and stored at any state during operation.

Referring to fig. 1, in some embodiments, the articulation piece 20 is symmetrically provided with two first sliding grooves 21 near the upper portion 51, and the distance between the two first sliding grooves 21 increases gradually from top to bottom;

a first guide pin 31 is arranged on the rod body at one end of the two adjustable surrounding rods 30, which is close to each other, and the first guide pin 31 is embedded in and can slide along the first chute 21;

when the folding bed is unfolded, the first guide pin 31 is placed on top of the first chute 21;

when the folding bed is folded, the first guide pin 31 slides to the bottom of the first chute 21.

Referring to fig. 8 and 10, when the bed frame is folded, the unlocking base 90 is held by hand and lifted upward, and the plurality of supporting bases 70 are simultaneously closed to the unlocking base 90, and at this time, the lower parts 52 of the four upright poles 60 are pulled to be folded inward; because the length of the lower enclosing rod 40 is unchanged all the time, when the lower part 52 of the vertical rod 60 is inwards, the upper part 51 of the vertical rod 60 expands outwards, the upper part 51 of the vertical rod 60 pulls the adjustable enclosing rod 30 to outwards move through the mounting sleeve 10, and the adjustable enclosing rod 30 drives the first guide pin 31 to gradually outwards and downwards move along the first sliding groove 21 when outwards moving, so that the adjustable enclosing rod 30 starts to fold, meanwhile, the joint connector 20 gradually falls under the adduction action of the vertical rod 60, and the connecting end of the lower enclosing rod 40 and the joint connector 20 rotates and folds relative to the joint connector 20 along with the gradual falling of the joint connector 20;

when the unlocking base 90 is lifted to the highest position, the first guide pin 31 slides to the bottom of the first chute 21, the joint connector 20 and the lower surrounding rod 40 are lowered to the lowest position, and the whole bed body is folded and contracted.

The connection part between the adjustable enclosing rod 30 and the joint connector 20 in the embodiment is in sliding connection, so that the adjustable enclosing rod 30 of the folding bed has enough movement clearance from unfolding to folding deformation, and flexible deformation can be realized. Because the bed body is easier to deform, the bed body can be compressed without great force, and the rod piece can be prevented from being broken or the connected parts are worn under great force.

Referring to fig. 10, in some embodiments, a second sliding groove 22 is respectively provided on the opposite sides of the two first sliding grooves 21 on the joint connecting piece 20, a second guiding pin 32 is provided on the rod body of the adjustable enclosing rod 30, and the second guiding pin 32 is slidably embedded in the second sliding groove 22;

when the armrest structure is unfolded, the second guide pin 32 is disposed at one end of the second chute 22 near the first chute 21; when the armrest structure is folded, the second guide pin 32 slides toward the end away from the first chute 21.

When the folding is carried out, the installation sleeve 10 pulls the adjustable enclosing rod 30 to move outwards, and when the adjustable enclosing rod 30 moves outwards, the first guide pin 31 is driven to gradually move outwards and downwards along the first sliding groove 21, and at the moment, the second guide pin 32 slides outwards along the second sliding groove 22. The second guide pin 32 and the second chute 22 in the embodiment make the movement of the adjustable enclosing rod 30 smoother during folding, so that the folding process of the bed body is also more stable.

Referring to fig. 1 and 8, in some embodiments, a supporting seat 70 is connected to the lower portion of each mounting sleeve 10 through a vertical rod 60, and each supporting seat 70 is hinged to an unlocking base 90 disposed in the middle of the lower portion 52 of the bed body through a connecting rod group 80;

the unlocking base 90 comprises an upper unlocking base 91 and a lower unlocking base 92 which are spliced up and down, and the connecting rod group 80 comprises a first connecting rod 81 and a second connecting rod 82 which are hinged;

the outer end of the first connecting rod 81 is hinged to the supporting seat 70, and the inner end of the first connecting rod 81 is hinged to the upper unlocking seat 91; one end of the second connecting rod 82 is hinged to the lower unlocking base 92, and the other end is hinged to the rod body of the first connecting rod 81.

When the bed frame is folded, the upper unlocking base 91 is held by a hand and lifted upwards, so that the upper unlocking base 91 is separated from the lower unlocking base 92 and moves upwards at the same time; when the upper unlocking base 91 and the lower unlocking base 92 move upwards, the inner ends of the first connecting rods 81 and the second connecting rods 82 are simultaneously driven to swing upwards, at this time, the outer ends of the first connecting rods 81 respectively pull one supporting seat 70 to approach the unlocking base 90 to be folded, and at this time, the supporting seats 70 at four corners respectively drive the lower parts 52 of the four upright rods 60 to be folded inwards to start folding actions.

The upper unlocking base 91 and the lower unlocking base 92 are in plug-in locking and separating, so that the structure is simple; unlocking can be realized by lifting the upper unlocking base 91 upwards in operation, and the first connecting rod 81 and the second connecting rod 82 are hinged and connected with the upper unlocking base 91 and the lower unlocking base 92 respectively, so that linkage is facilitated, and flexible unfolding and folding of the bed body are realized.

In the above description, although the respective elements of the present invention may be described using expressions such as "first" and "second", they are not intended to limit the corresponding elements. For example, the above description is not intended to limit the order or importance of the corresponding elements. The above description is intended to distinguish one element from another element.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms include plural forms unless there is a significant difference in context, schemes, etc. between them.

The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.

It will be appreciated by those skilled in the art that the technical features of the above-described embodiments may be omitted, added or combined in any way, and that all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, and that simple variations which can be envisaged by those skilled in the art, and structural variations which make adaptations and functionalities of the prior art, should be considered as within the scope of the present description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that while the present invention has been shown and described with reference to various embodiments, it will be apparent to those skilled in the art that various changes and modifications in form and details may be made therein without departing from the scope of the invention as defined by the appended claims. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. An adjustable girt, comprising:

the adjustable end of the rod body is close to the mounting sleeve, and the rod body is rotationally connected with the sliding sleeve;

the sliding sleeve is configured to be arranged on the sliding groove at the side edge of the mounting sleeve in a vertical sliding manner;

the pull pin is inserted into the adjustable end of the rod body along the length direction of the rod body, and one end of the pull pin, facing the mounting sleeve, is provided with a connecting guide block;

the locking pin is arranged at one end of the pull pin, facing the mounting sleeve, and is inserted into the locking groove of the mounting sleeve to be interlocked with the mounting sleeve; the surface of the lock pin is provided with a guide slideway which is matched and clamped with the connecting guide block, and the extending track of the guide slideway is consistent with the moving track of the connecting guide block when the rod body rotates and is used for providing guide when the rod body rotates;

and the driving component is connected with the pull pin in a matched manner and is used for driving the pull pin to move in a direction away from the mounting sleeve so as to drive the lock pin to be separated from the locking groove of the mounting sleeve, thereby releasing the interlocking between the lock pin and the mounting sleeve.

2. The adjustable girt of claim 1, wherein the drive member comprises:

the unlocking button penetrates through the rod body from the outer side and is embedded into the mounting groove on the surface of the pull pin, and the surface of the unlocking button is provided with an inclined driving surface which forms an included angle with the embedding direction of the unlocking button;

the mounting groove is arranged along the length direction of the pull pin, and the groove wall far away from the connecting guide block is an inclined driving groove wall;

the inclined driving surface of the unlocking button surface is attached to the wall of the inclined driving groove;

the unlock button is configured to: the locking pin can move along the direction of inserting into the mounting groove so that the inclined driving surface and the inclined driving groove wall slide relatively to drive the pulling pin to move away from the mounting sleeve, and the locking pin is driven to be separated from the locking groove of the mounting sleeve so as to release the interlocking between the locking pin and the mounting sleeve.

3. The adjustable enclosing rod according to claim 2, further comprising a first spring, wherein the first spring is arranged in the mounting groove, two ends of the first spring are respectively abutted against a stop pin arranged in the rod body and a groove wall of the mounting groove, which is close to one side of the connecting guide block, and the stop pin is arranged between the first spring and the unlocking button;

the first spring is used for compressing and accumulating elastic potential energy under stress when the unlocking button drives the pull pin to move in a direction away from the mounting sleeve, and releasing the elastic potential energy and restoring the initial length to drive the pull pin to reversely move to reach the initial interlocking position when the unlocking button is released.

4. The adjustable girth bar according to claim 2, wherein one end of the pull pin facing the mounting sleeve is provided with a connecting body, the connecting body protrudes out of the circumferential wall surface of the bar body, and the connecting guide block is mounted on the connecting body;

the surface of the lock pin is provided with a guide chute, the guide chute is internally provided with a guide slide way, the connecting guide block is embedded in the guide chute, and the connecting guide block can move along the extending track of the guide slide way when the rod body rotates.

5. The adjustable rail of claim 4, wherein the side walls of the guide chute and the connecting body are in shape fit and are cambered surfaces, and the extending direction of the cambered surfaces is consistent with the movement track of the connecting guide block when the rod body rotates, so as to provide guidance when the rod body rotates.

6. The adjustable girt bar according to claim 1, wherein the end of the pull pin facing the mounting sleeve is provided with a guide slot extending in the length direction of the pull pin; the rotating connecting pin used for connecting the rod body and the sliding sleeve is inserted into the guide groove, and the diameter of the rotating connecting pin is consistent with the width dimension of the guide groove and is used for providing guidance for the movement of the pull pin.

7. The adjustable girt of claim 1, further comprising a guide bracket disposed within the sliding sleeve; and a guide hole for the lock pin to pass through is formed in the guide bracket.

8. A folding bed, comprising: a plurality of installation cover are equipped with the handrail subassembly between the adjacent installation cover, the handrail subassembly includes:

a joint connection;

the adjustable surrounding rods are arranged on two sides of the joint connecting piece as claimed in claims 1-7, one ends of the two adjustable surrounding rods, which are close to each other, are respectively connected with the joint connecting piece in a rotating way, and the adjustable ends of the adjustable surrounding rods, which are far away from each other, are connected with the mounting sleeve in a rotating way;

the lower enclosing rod is provided with two lower enclosing rods which are arranged below the adjustable enclosing rod side by side respectively, one ends of the lower enclosing rods, which are close to each other, are respectively connected with the joint connecting piece in a rotating way, and one ends, which are far away from each other, are respectively connected with the mounting sleeve in a rotating way.

9. The folding bed according to claim 8, wherein the articulated connection is symmetrically provided with two first sliding grooves near the upper part, and the distance between the two first sliding grooves is gradually increased from top to bottom;

a first guide pin is arranged on the rod body at one end, close to each other, of the two adjustable surrounding rods, and the first guide pin is embedded in and can slide along the first sliding groove;

when the folding bed is unfolded, the first guide pin is arranged at the top of the first chute; when the folding bed is folded, the first guide pin slides to the bottom of the first chute.

10. The folding bed according to claim 9, wherein a second sliding groove is respectively provided on one side of the joint connecting piece, which is opposite to the two first sliding grooves, and a second guiding pin is provided on the rod body of the adjustable enclosing rod, and the second guiding pin is slidably embedded in the second sliding groove;

when the armrest structure is unfolded, the second guide pin is arranged at one end of the second chute close to the first chute; when the armrest structure is folded, the second guide pin slides to one end far away from the first chute.