CN217338014U

CN217338014U - Foldable bed guardrail

Info

Publication number: CN217338014U
Application number: CN202122894093.5U
Authority: CN
Inventors: 夏勇
Original assignee: Hangzhou Maizhuo Trading Co Ltd
Current assignee: Hangzhou Maizhuo Trading Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-09-02
Anticipated expiration: 2031-11-19

Abstract

The utility model belongs to the technical field of bed guardrail, refer in particular to a foldable bed guardrail, including foldable horizontal pole, the horizontal pole both sides set up the stand that is used for supporting the horizontal pole, the horizontal pole includes first bracing piece and the second bracing piece that rotates the setting, fixedly on the first bracing piece be provided with the second bracing piece rotate connect the hinge seat, be provided with the connecting seat with first bracing piece or second bracing piece rotation connection on the stand respectively, be provided with hinge groove and hinge rod in the hinge seat, be provided with first spacing wall in the hinge groove, hinge seat and second bracing piece relatively expand when first spacing wall supports and leans on the second bracing piece; be provided with joint spare on the second bracing piece, be provided with on the hinge groove lateral wall with joint spare complex joint hole, joint spare and joint hole cooperation make second bracing piece and articulated seat relatively fixed, the utility model aims at providing a convenient to use, easy operation and sound construction's collapsible bed guardrail.

Description

Foldable bed guardrail

Technical Field

The utility model belongs to the technical field of bed guardrail/bed rail, refer in particular to a collapsible bed guardrail.

Background

Along with the continuous growth of infants, the active nature of infants gradually appears, the crib with a small area can not meet the requirements of activities and playing of infants gradually, but most of the commonly used beds in families do not have guardrails, the infants easily fall off from the bed due to accidents when moving or falling asleep, injuries are caused, the occurrence of the crib guardrails avoids the accidents for parents of the infants, but in order to protect the infants better, the crib guardrails mostly form a large cross section, but the large cross section is inconvenient for storage and transportation of the crib guardrails, sellers and users only can disassemble the crib guardrails and assemble the crib guardrails when the crib is used again, and the crib guardrails are inconvenient for the users to use.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims at providing a novel foldable bed guardrail convenient for storage and transportation.

The purpose of the utility model is realized like this:

a foldable bed guardrail comprises a foldable cross bar, two sides of the cross bar are provided with upright posts for supporting the cross bar, the cross bar comprises a first support bar and a second support bar which are rotatably arranged, a hinge seat is fixedly arranged on the first support bar, the second support bar is rotatably connected with the hinge seat, connecting seats which are rotatably connected with the first support bar or the second support bar are respectively arranged on the stand columns at the two sides of the cross bar, a hinge groove is arranged in the hinge seat, a hinge bar connected with the second support bar is arranged in the middle of the hinge groove, a first limit wall is arranged in the hinge groove, the hinge seat and the second support bar are relatively unfolded when the first limit wall is abutted against the second support bar, the two opposite sides of the hinge groove are respectively provided with a first empty avoiding groove and a second empty avoiding groove, and second support rods on the two sides of the hinge rod respectively penetrate into the first empty avoiding groove and the second empty avoiding groove and are turned and folded towards the side surface of the hinge seat, so that the stand columns are mutually closed;

the second supporting rod is provided with a clamping piece, the side wall of the hinge groove is provided with a clamping hole matched with the clamping piece, and the clamping piece is matched with the clamping hole to enable the second supporting rod to be relatively fixed with the hinge seat.

Preferably, the joint spare is located the one side that the hinge bar is close to the stand, and second bracing piece one end rotates with the connecting seat to be connected, and the second bracing piece other end is provided with the arc terminal surface, and when the second bracing piece was folded to the upset of hinge seat side, the arc terminal surface penetrated in the first dead slot of keeping away.

Preferably, a second limiting wall is arranged on one side, opposite to the first limiting wall, of the hinge groove, and when the hinge seat and the second supporting rod are unfolded relatively, the second supporting rods on two sides of the hinge rod abut against the first limiting wall and the second limiting wall respectively.

Preferably, the clamping piece is arranged on the second supporting rod in a sliding mode, and the second supporting rod is provided with an elastic piece for driving the clamping piece to be matched with the clamping hole.

Preferably, the first clearance groove or the second clearance groove side wall is provided with a first guide surface, the first guide surface can drive the clamping piece to contract towards the second supporting rod, and the second supporting rod is enabled to be separated from the first clearance groove and lean against the first limiting wall.

Preferably, the end part of the clamping piece is provided with an arc-shaped guide surface, and the first guide surface abuts against the arc-shaped guide surface and drives the clamping piece to contract towards the second supporting rod.

Preferably, be provided with two sets of horizontal poles between the stand, be provided with the connecting seat of being connected with two sets of horizontal poles respectively on the stand, a set of connecting seat can be dismantled with the stand and be connected, another group of connecting seat and stand sliding connection, and two sets of horizontal poles accessible connecting seat draw close each other with the relative slip of stand.

Preferably, the connecting seat is provided with a first positioning wall and a rotating shaft connected with the first supporting rod or the second supporting rod, the first positioning wall extends towards the lower part of the rotating shaft, the first supporting rod or the second supporting rod is provided with a second positioning wall matched with the first positioning wall, and when the hinged seat and the second supporting rod are relatively unfolded, the first positioning wall is tightly abutted against the second positioning wall.

Preferably, a rotating groove is formed in the connecting seat, the rotating shaft penetrates through the rotating groove, two groups of first positioning walls are arranged on the connecting seat, the two groups of first positioning walls are arranged on the upper side and the lower side of the rotating shaft respectively, the two groups of first positioning walls are arranged on the two sides of the first supporting rod or the second supporting rod respectively, and when the cross rod and the stand column are kept in the unfolding state, the first supporting rod and the second supporting rod are abutted against the two groups of first positioning walls of the connecting seat.

Preferably, the connecting seat includes can dismantle the first connecting seat of being connected and the second connecting seat with stand sliding connection with the stand, be provided with the joint button on the stand, be provided with on the second connecting seat with joint button complex draw-in groove.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses a first bracing piece that the rotation is connected realizes the folding of horizontal pole with the second bracing piece, make the stand draw close each other, and make first bracing piece and second bracing piece keep the expansion state through joint spare and joint hole, moreover, the steam generator is simple in structure, convenient equipment, and the second bracing piece can support and lean on first spacing wall when articulated seat and second bracing piece expand relatively in this structure, be favorable to increasing the area of contact of articulated seat and second bracing piece, improve the joint strength of articulated seat and second bracing piece, avoid the second bracing piece damage of buckling, be favorable to prolonging the life of bed guardrail, and first dead slot and second are kept away being provided with of dead slot and are favorable to the relative rotation of second bracing piece and articulated seat, be convenient for the second bracing piece is folded with the upset of articulated seat.

2. The joint piece is positioned on one side of the hinge rod close to the stand column, one end of the second support rod is rotationally connected with the connecting seat, the other end of the second support rod is provided with an arc-shaped end surface, when the second support rod is turned and folded towards the side surface of the hinge seat, the arc-shaped end surface penetrates into the first empty avoiding groove, the arc-shaped end surface is arranged to be beneficial to avoiding the mutual interference of the second support rod and the hinge seat, a producer can reduce the volume of the hinge seat and the material consumption of the hinge seat, thereby saving the production cost of bed guardrails; one side that the hinge groove is relative with first spacing wall is provided with the spacing wall of second, and when articulated seat and second bracing piece expand relatively, the second bracing piece of hinge bar both sides supports respectively and leans on first spacing wall and the spacing wall of second, and this structure is favorable to increasing the area of contact of articulated seat and second bracing piece, improves the joint strength of articulated seat and second bracing piece, avoids the second bracing piece damage of buckling, is favorable to prolonging the life of bed guardrail.

3. The clamping piece is arranged on the second supporting rod in a sliding manner, and the second supporting rod is provided with an elastic piece for driving the clamping piece to be matched with the clamping hole; first clearance groove or second are kept away the dead slot lateral wall and are provided with first spigot surface, and first spigot surface can drive joint spare shrink in to the second bracing piece to make the second bracing piece support from first clearance groove and break away from and lean on first spacing wall, joint spare tip is provided with the arc spigot surface, and first spigot surface supports tightly and drives joint spare shrink in to the second bracing piece on the arc spigot surface, and first spigot surface is favorable to the quick expansion of articulated seat and bracing piece with setting up of arc spigot surface, and the person of facilitating the use uses.

4. Be provided with two sets of horizontal poles between the stand, be provided with the connecting seat of being connected with two sets of horizontal poles respectively on the stand, a set of connecting seat can be dismantled with the stand and be connected, another group's connecting seat and stand sliding connection, two sets of horizontal pole accessible connecting seats draw close each other with the relative slip of stand, being provided with of two sets of horizontal poles does benefit to and installs the cloth on the bed guardrail, owing to two sets of horizontal pole accessible connecting seats draw close each other, is favorable to reducing the volume after the bed guardrail is folded moreover, makes things convenient for folding of bed guardrail to accomodate.

5. The connecting seat of the utility model is provided with a first positioning wall and a rotating shaft connected with the first supporting rod or the second supporting rod, the first positioning wall extends towards the lower part of the rotating shaft, the first supporting rod or the second supporting rod is provided with a second positioning wall matched with the first positioning wall, when the hinged seat and the second supporting rod are relatively unfolded, the first positioning wall is tightly propped against the second positioning wall, the structure is favorable for supporting the supporting rod through the connecting seat, and the supporting rod is favorable for avoiding the downward bending of the supporting rod in the using process; be provided with the rotation groove on the connecting seat, the axis of rotation is worn to establish in rotating the groove, be provided with two sets of first location walls on the connecting seat, two sets of first location walls set up both sides about the axis of rotation respectively, and two sets of first location walls set up respectively in first bracing piece or second bracing piece both sides, when horizontal pole and stand keep the expansion state, first bracing piece all supports and leans on two sets of first location walls of connecting seat with the second bracing piece, two sets of first location walls are favorable to increasing the area of contact of connecting seat and bracing piece, improve the stability of horizontal pole installation.

6. The connecting seat include can dismantle the first connecting seat of being connected and with stand sliding connection's second connecting seat with the stand, be provided with the joint button on the stand, be provided with on the second connecting seat with joint button complex draw-in groove, simple structure, convenient to use person controls.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a schematic structural view of the folded state of the present invention;

fig. 4 is a partial cross-sectional view of the present invention;

fig. 5 is a schematic view of a connection structure of the first support rod and the second support rod according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of a hinge seat according to a first embodiment of the present invention;

fig. 7 is a cross-sectional view of a hinge base according to a first embodiment of the present invention;

fig. 8 is a sectional view of a connection structure of a first support bar and a second support bar according to a second embodiment of the present invention;

fig. 9 is a schematic structural view of a hinge seat according to a second embodiment of the present invention;

fig. 10 is a sectional view of a hinge base according to a second embodiment of the present invention;

fig. 11 is a cross-sectional view of a second support rod according to a first embodiment of the present invention;

fig. 12 is a schematic structural diagram of the connecting head of the present invention;

fig. 13 is a schematic structural view of a second connecting seat of the present invention;

fig. 14 is a schematic structural view of the first connecting seat of the present invention.

In the figure: 1-upright post; 11-snap button; 12-a return spring; 13-a support button; 2-a cross bar;

21-a first support bar; 22-a second support bar; 23-a hinge slot; 24-a first clearance groove; 25-a second clearance groove; 26-a first stop wall; 27-a second stop wall; 28-a snap-in hole; 29-a first guide surface; 211-a connecting head; 212-a second locating wall; 213-elastic buttons; 214-an arcuate end face; 215-a hinged seat; 216-fixed slots; 217-fixing holes; 218-a rod body; 219-a fixation pin; 221-a hinged lever; 231-hinge holes; 3-a second connecting seat; 31-a rotating shaft; 32-card slot; 33-a chute; 34-a rotation slot; 35-a first positioning wall; 4-a first connection seat; 5-a clamping piece; 51-an arcuate guide surface; 6-an elastic member; 61-mounting seat.

Detailed Description

The invention will be further described in the following with reference to the accompanying drawings in which:

referring to fig. 1 to 14, a foldable bed guardrail comprises a foldable cross bar 2, two sides of the cross bar 2 are provided with upright posts 1 for supporting the cross bar 2, the cross bar 2 comprises a first support bar 21 and a second support bar 22 which are rotatably arranged, the first support bar 21 is fixedly provided with a hinge seat 215, the second support bar 22 is rotatably connected with the hinge seat 215, the upright posts 1 at two sides of the cross bar 2 are respectively provided with a connecting seat rotatably connected with the first support bar 21 or the second support bar 22, the hinge seat 215 is provided with a hinge groove 23, the middle part of the side wall of the hinge groove 23 is provided with a hinge hole 231, the hinge hole 231 is provided with a hinge rod 221 connected with the second support bar 22, the hinge groove 23 is provided with a first limit wall 26, the hinge seat 215 and the second support bar 22 are relatively unfolded when the first limit wall 26 abuts against the second support bar 22, the structure realizes the folding of the cross bar 2 through the first support bar 21 and the second support bar 22 which are rotatably connected, make stand 1 to draw close each other, simple structure, convenient equipment, and second bracing piece 22 can support and lean on first spacing wall 26 when articulated seat 215 and second bracing piece 22 expand relatively in this structure, is favorable to increasing the area of contact of articulated seat 215 and second bracing piece 22, improves the joint strength of articulated seat 215 and second bracing piece 22, avoids second bracing piece 22 buckling damage, is favorable to prolonging the life of bed guardrail.

The utility model discloses in first bracing piece 21 and second bracing piece 22 can turn over the book as going up in the description figure, also can turn over the book downwards, first bracing piece 21 can also turn over the book and make stand 1 draw close each other in the horizontal direction with second bracing piece 22.

In this embodiment, the first supporting rod 21 includes a rod 218, a fixing groove 216 for mounting the rod 218 is disposed on the hinge seat 215, a fixing hole 217 is disposed on a sidewall of the fixing groove 216, a fixing pin 219 is disposed in the fixing hole 217, and the rod 218 and the hinge seat 215 are relatively fixed by the fixing pin 219.

Preferably, the two opposite sides of the hinge groove 23 are respectively provided with a first clearance groove 24 and a second clearance groove 25, the second support rods 22 at the two sides of the hinge rod 221 respectively penetrate the first clearance groove 24 and the second clearance groove 25 and are turned and folded towards the side of the hinge seat 215, so that the upright posts 1 are mutually drawn together, the first clearance groove 24 and the second clearance groove 25 are provided to facilitate the relative rotation of the second support rods 22 and the hinge seat 215, and the turning and folding of the second support rods 22 and the hinge seat 215 are facilitated.

In this embodiment, the second support rod 22 is provided with the clip member 5, the side wall of the hinge groove 23 is provided with the clip hole 28 matched with the clip member 5, the clip member 5 and the clip hole 28 are matched to fix the second support rod 22 and the hinge base 215 relatively, and the hinge base 215 and the support rods are kept in the unfolded state through the clip member 5 and the clip hole 28 in the structure, so that the structure is simple and convenient to assemble.

The utility model discloses well first bracing piece 21 and second bracing piece 22's connection structure has following two kinds of embodiments, and following two kinds of embodiments can the exclusive use, also can synthesize embodiment one and embodiment two.

Example one

Joint spare 5 is located the one side that articulated mast 221 is close to the stand, and second bracing piece 22 one end rotates with the connecting seat to be connected, the second bracing piece 22 other end is provided with arc-shaped end face 214, when second bracing piece 22 is folded to articulated seat 215 side upset, arc-shaped end face 214 penetrates in first clearance groove 24, the setting of arc-shaped end face 214 is favorable to avoiding second bracing piece 22 and articulated seat 215 mutual interference, the producer can reduce the volume of articulated seat 215, reduce the materials of articulated seat 215, thereby save the manufacturing cost of bed guardrail, articulated mast 221 all is close to second bracing piece 22 tip greatly in this structure, avoid second bracing piece 22 tip and articulated seat 215 to take place to interfere.

Example two

The hinge groove 23 is provided with the second limiting wall 27 on the side opposite to the first limiting wall 26, and when the hinge seat 215 and the second supporting rod 22 are relatively unfolded, the second supporting rods 22 on the two sides of the hinge rod 221 are respectively abutted against the first limiting wall 26 and the second limiting wall 27, the structure is favorable for increasing the contact area of the hinge seat 215 and the second supporting rod 22, the connection strength of the hinge seat 215 and the second supporting rod 22 is improved, the bending damage of the second supporting rod 22 is avoided, and the service life of the bed guardrail is prolonged.

When the first embodiment is combined with the second embodiment, that is, the arc-shaped end surface 214 is arranged at the end of the second support rod 22 on the basis of the second embodiment, which is beneficial to reducing the length of the second support rod 22 and avoiding the interference between the hinge seat 215 and the end of the second support rod 22.

All be provided with curved locating surface on first bracing piece 21 and the second bracing piece 22, first spacing wall 26 be with the arc wall of locating surface adaptation, the arc locating surface be provided with do benefit to bracing piece and articulated seat 215 location installation when horizontal pole 2 expandes, avoid the bracing piece to take place to rock with articulated seat 215 horizontal direction, the bracing piece of being convenient for and articulated seat 215 stable installation, preferred the locating surface is the bracing piece lateral wall, and the bracing piece is the pole of dysmorphism that the pole perhaps has the arc lateral wall for the round bar.

Joint 5 slides and sets up on second bracing piece 22, and is provided with drive joint spare 5 and joint hole 28 complex elastic component 6 on the second bracing piece 22, and elastic component 6 is provided with and does benefit to joint spare 5 and joint hole 28 and keeps the cooperation, avoids articulated seat 215 and bracing piece accident folding, in this embodiment second bracing piece 22 is the hollow tube, and elastic component 6 is compression spring, is provided with mount pad 61 in the hollow tube, is provided with the cavity of installation compression spring in the mount pad 61, and is provided with the spacing protruding edge of avoiding joint spare 5 and mount pad 61 to break away from on the joint spare 5.

The side wall of the first clearance groove 24 or the second clearance groove 25 is provided with a first guide surface 29, the first guide surface 29 can drive the clamping piece 5 to contract towards the second support rod 22, and the second support rod 22 is separated from the first clearance groove 24 and leans against the first limit wall 26

The lateral wall of the first clearance groove 24 or the second clearance groove 25 is provided with a first guide surface 29, the first guide surface 29 can drive the clamping piece 5 to contract towards the second support rod 22, the second support rod 22 is supported to be separated from the first clearance groove 24 and leans against the first limiting wall 26, the first guide surface 29 is provided to facilitate the quick expansion of the hinge seat 215 and the second support rod 22, and the use of a user is facilitated, and in the embodiment, the first guide surface 29 is arranged on the lateral wall of the second clearance groove 25.

Preferably, the end of the clamping member 5 is provided with an arc-shaped guide surface 51, the first guide surface 29 abuts against the arc-shaped guide surface 51 and drives the clamping member 5 to contract towards the second supporting rod 22, and the arc-shaped guide surface 51 is beneficial to the rapid expansion of the hinge seat 215 and the second supporting rod 22, so that the use of a user is facilitated.

The utility model discloses in be provided with two sets of horizontal poles 2 between the stand 1, be provided with the connecting seat of being connected with two sets of horizontal poles 2 respectively on the stand 1, a set of connecting seat can be dismantled with stand 1 and be connected, another group's connecting seat and 1 sliding connection of stand, 2 accessible connecting seats of two sets of horizontal poles draw close each other, and two sets of horizontal poles 2 are provided with and do benefit to the installation cloth on the bed guardrail, because 2 accessible connecting seats of two sets of horizontal poles draw close each other, are favorable to reducing the volume after the bed guardrail is folded, make things convenient for folding of bed guardrail to accomodate moreover.

Horizontal pole 2 includes the horizontal pole and sets up the sheer pole in last horizontal pole below, the connecting seat include with stand 1 can dismantle the first connecting seat 4 of being connected and with stand 1 sliding connection's second connecting seat 3, be provided with joint button 11 on the stand 1, be provided with on the second connecting seat 3 with joint button 11 complex draw-in groove 32, simple structure, convenient to use person controls, be provided with spout 33 on the second connecting seat 3, spout 33 cover is established on stand 1, goes up the horizontal pole and passes through second connecting seat 3 and stand 1 sliding connection, the sheer pole through first connecting seat 4 and stand 1 relatively fixed.

Preferably, the stand column 1 is provided with a reset spring 12 for driving the clamping button 11 and the clamping groove 32 to be matched, in this embodiment, the stand column 1 is further provided with a support button 13, the reset spring 12 is arranged between the support button 13 and the stand column 1, the reset spring 12 drives the support button 13 to penetrate out of the stand column 1, and the second connecting seat 3 is abutted against the upper end of the support button 13.

The one end of first bracing piece 21 and second bracing piece 22 all can be dismantled and be provided with the connector 211 of being connected with second connecting seat 3, is provided with the elastic button 213 on the bracing piece, and first bracing piece 21 and second bracing piece 22 tip are worn to establish in connector 211 to make connector 211 fix on first bracing piece 21 and second bracing piece 22 through elastic button 213.

In this embodiment, the second connecting seat 3 is provided with the first positioning wall 35 and the rotating shaft 31 connected to the upper cross bar, the first positioning wall 35 extends below the rotating shaft 31, the connecting head 211 is provided with the second positioning wall 212 matched with the first positioning wall 35, when the second connecting seat 3 is relatively unfolded with the first supporting rod 21 or the second supporting rod 22, the first positioning wall 35 is tightly abutted against the second positioning wall 212, and this structure is favorable for supporting the upper cross bar through the second connecting seat 3, and is favorable for avoiding the downward bending of the upper cross bar in the using process.

Be provided with on the first connecting seat 4 and rotate groove 34, axis of rotation 31 is worn to establish in rotating groove 34, be provided with two sets of first location walls 35 on the first connecting seat 4, two sets of first location walls 35 set up both sides about axis of rotation 31 respectively, and two sets of first location walls 35 set up the both sides at the sheer pole respectively, first bracing piece 21 or second bracing piece 22 support and lean on two sets of first location walls 35 and make bracing piece and stand 1 keep the expansion state, two sets of first location walls 35 are favorable to increasing the area of contact of first connecting seat 4 and bracing piece, improve the stability of sheer pole installation.

The above embodiment is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited in this way, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Collapsible bed guardrail, including folding horizontal pole (2), horizontal pole (2) both sides set up stand (1) that are used for supporting horizontal pole (2), its characterized in that: the cross bar (2) comprises a first support bar (21) and a second support bar (22) which are rotatably arranged, a hinge seat (215) is fixedly arranged on the first support bar (21), the second support bar (22) is rotatably connected with the hinge seat (215), connecting seats which are rotatably connected with the first support bar (21) or the second support bar (22) are respectively arranged on the upright posts (1) at two sides of the cross bar (2), a hinge groove (23) is arranged in the hinge seat (215), a hinge rod (221) connected with the second support bar (22) is arranged in the middle of the hinge groove (23), a first limiting wall (26) is arranged in the hinge groove (23), the hinge seat (215) and the second support bar (22) are relatively unfolded when the first limiting wall (26) is abutted against the second support bar (22), and a first clearance groove (24) and a second clearance groove (25) are respectively arranged at two opposite sides of the hinge groove (23), the second support rods (22) at two sides of the hinge rod (221) respectively penetrate into the first clearance groove (24) and the second clearance groove (25) and are turned and folded towards the side surface of the hinge seat (215), so that the upright posts (1) are mutually closed;

be provided with joint spare (5) on second bracing piece (22), be provided with on articulated groove (23) lateral wall with joint spare (5) complex joint hole (28), joint spare (5) and joint hole (28) cooperation make second bracing piece (22) and articulated seat (215) relatively fixed.

2. The foldable bed fence as claimed in claim 1 wherein: joint spare (5) are located one side that articulated rod (221) is close to stand (1), and second bracing piece (22) one end rotates with the connecting seat to be connected, and second bracing piece (22) other end is provided with arc terminal surface (214), and when second bracing piece (22) was folded to articulated seat (215) side upset, arc terminal surface (214) penetrated in first clearance groove (24).

3. The foldable bed fence as claimed in claim 1 wherein: one side of the hinge groove (23) opposite to the first limiting wall (26) is provided with a second limiting wall (27), and when the hinge seat (215) and the second supporting rod (22) are unfolded relatively, the second supporting rods (22) on two sides of the hinge rod (221) are respectively abutted against the first limiting wall (26) and the second limiting wall (27).

4. A foldable bed guardrail according to claim 1 or 2 or 3, characterized in that: the clamping piece (5) is arranged on the second supporting rod (22) in a sliding mode, and the second supporting rod (22) is provided with an elastic piece (6) which drives the clamping piece (5) to be matched with the clamping hole (28).

5. The foldable bed fence as claimed in claim 4 wherein: the side wall of the first clearance groove (24) or the second clearance groove (25) is provided with a first guide surface (29), the first guide surface (29) can drive the clamping piece (5) to contract towards the second supporting rod (22), and the second supporting rod (22) is enabled to be propped away from the first clearance groove (24) and lean against the first limiting wall (26).

6. The foldable bed guardrail of claim 5, wherein: the end of the clamping piece (5) is provided with an arc-shaped guide surface (51), and the first guide surface (29) abuts against the arc-shaped guide surface (51) and drives the clamping piece (5) to contract towards the second supporting rod (22).

7. A foldable bed guardrail according to claim 1 or 2 or 3 or 5 or 6, characterized in that: be provided with two sets of horizontal pole (2) between stand (1), be provided with the connecting seat of being connected with two sets of horizontal pole (2) respectively on stand (1), a set of connecting seat can be dismantled with stand (1) and be connected, another group's connecting seat and stand (1) sliding connection, and two sets of horizontal pole (2) accessible connecting seat draw close each other with the relative slip of stand (1).

8. The foldable bed fence of claim 7, wherein: be provided with first location wall (35) on the connecting seat and axis of rotation (31) be connected with first bracing piece (21) or second bracing piece (22), first location wall (35) extend to axis of rotation (31) below, be provided with on first bracing piece (21) or second bracing piece (22) with first location wall (35) complex second location wall (212), when articulated seat (215) and second bracing piece (22) expand relatively, first location wall (35) support tightly on second location wall (212).

9. The foldable bed guardrail of claim 8 wherein: be provided with on the connecting seat and rotate groove (34), axis of rotation (31) are worn to establish in rotating groove (34), be provided with two sets of first location wall (35) on the connecting seat, two sets of first location wall (35) set up both sides about axis of rotation (31) respectively, and two sets of first location wall (35) set up respectively in first bracing piece (21) or second bracing piece (22) both sides, when horizontal pole (2) and stand (1) keep expansion state, first bracing piece (21) and second bracing piece (22) all support and lean on two sets of first location wall (35) of connecting seat.

10. A foldable bed guardrail as claimed in claim 8 or 9, characterized in that: the connecting seat includes first connecting seat (4) of being connected and second connecting seat (3) with stand (1) sliding connection with stand (1) can dismantle, be provided with joint button (11) on stand (1), be provided with on second connecting seat (3) with joint button (11) complex draw-in groove (32).