CN216166482U - Exempt from bed guardrail of installation - Google Patents

Abstract

The utility model relates to the technical field of bed guardrails, in particular to an installation-free bed guardrail which is applied to a bed with a mattress, wherein the bed guardrail comprises a support and a guardrail, the support is clamped between the bed and the mattress, and the guardrail is fixedly connected with the support; the bed is characterized in that the supports are arranged at the head end and the tail end of the bed, the guardrails are foldable, the guardrails are unfolded and combined with the supports to form a whole body for enclosing the mattress, and the guardrails comprise a plurality of stand columns, a plurality of cross rods and connecting pieces. The integrated installation-free bed guardrail can realize the universality of thick and thin mattresses, is more stable and stable than the bed guardrails on the common market, is more convenient to install, can realize the packing after the cloth cover is installed in a factory through folding each part, can be used by a client only by placing the bed bottom pressure bar and then expanding the guardrail to be installed on the bed body, is convenient for pre-installing the cloth cover, can be directly unfolded and installed during the assembling, and is particularly convenient for some female users to use and assemble.

Description

Exempt from bed guardrail of installation

Technical Field

The utility model relates to the technical field of bed guardrails, in particular to an installation-free bed guardrail.

Background

The bed guardrail, also called a bed fence or a bed baffle, is an enclosure guardrail built on the side surface of the baby/adult bed, prevents the baby from turning over during sleeping and falling off the bed, has the function of protecting the baby, or is used for protecting an adult patient who can not control own behaviors; the prior bed guardrail needs to spend a great deal of time to install after hands, so that some customers who are inconvenient to or cannot install the bed guardrail are bothered,

the structure for assembling the guardrails of the crib as disclosed in the Chinese utility model patent CN208822135U comprises at least two adjacent surfaces which are installed on the guardrails of the crib, each guardrail of the crib comprises an upper railing rod, a lower railing rod and upright columns positioned at two sides of the upper railing rod and the lower railing rod, two adjacent upright columns are arranged in the guardrails of the crib on the two adjacent surfaces, the tops of the two upright columns are fixedly connected through a first connecting piece, the bottoms of the two upright columns are fixedly connected through a second connecting piece, and the two guardrails of the crib are assembled and fixed by the first connecting piece and the second connecting piece; in the two adjacent upright columns, the bottom of one upright column is provided with a supporting leg, the second connecting piece is used for fixedly connecting the supporting leg with the other upright column, and the bed guardrail with the structure is inconvenient to install.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

The utility model aims at the defects in the prior art, and particularly provides an installation-free bed guardrail, which solves the problem that customers who are inconvenient or cannot install the bed guardrail are troubled because the existing bed guardrail needs to spend a large amount of time to install after hands.

Second, technical scheme

In order to solve the technical problems, the utility model provides an installation-free bed guardrail which is applied to a bed with a mattress, wherein the bed guardrail comprises a support and a guardrail, the support is clamped between the bed and the mattress, and the guardrail is fixedly connected with the support; the mattress is characterized in that the supports are arranged at the head end and the tail end of the bed, the guardrails are foldable, and the guardrails and the supports are combined into a whole body surrounding the mattress after being unfolded.

Preferably, the guardrail comprises a plurality of upright posts, a plurality of cross bars and connecting pieces; the upright posts and the cross bars are connected through connecting pieces and form a rectangular frame surrounding the mattress, and the support is connected with any one of the upright posts, the cross bars and the connecting pieces; the horizontal pole includes first pole portion, second pole portion and articulated elements, and first pole portion passes through the articulated elements and is articulated with second pole portion, and the guardrail is in the state of expanding when first pole portion and second pole portion are located same straight line.

Preferably, the hinge comprises two sleeves hinged to each other, one of the two sleeves being sleeved at one end of the first rod part and the other sleeve being sleeved at one end of the second rod part.

Preferably, the hinge member comprises a first sleeve and a second sleeve, one end of the first sleeve is hinged to one end of the second sleeve, the first sleeve is sleeved at one end of the first rod part, and the second sleeve is sleeved at one end of the second rod part; the hinged part also comprises a button, an inclined plane, a first spring, an inserted link and a second spring; the button is connected with the first sleeve in a sliding manner, and the sliding direction of the button is vertical to the axis of the first sleeve; the first spring is arranged in the first sleeve, the axis of the first spring is parallel to the sliding direction of the button, and two ends of the first spring are respectively abutted against the first sleeve and the button; the inserted bar is arranged on the second sleeve in a sliding way, and the sliding direction of the inserted bar is parallel to the axis of the second sleeve; the second spring is arranged in the second sleeve, the axis of the second spring is coaxial with the axis of the second sleeve, and two ends of the second spring are respectively abutted against the inserted rod and the second rod part; the button is provided with the inclined plane near the position of inserted bar, and the inclined plane supports with the inserted bar and supports and lean on, and when the button moved towards first sleeve inside, the inserted bar moved towards the second sleeve inside under the effect on inclined plane.

Preferably, the hinge member includes a third sleeve and a fourth sleeve, the ends of the third sleeve are hinged to each other, the third sleeve is sleeved on one end of the first rod part, and the fourth sleeve is sleeved on one end of the second rod part; one end of the third sleeve, which is far away from the first rod part, is provided with an outward-extending inserting column, the fourth sleeve is provided with an opening for inserting the column, the inserting column is internally and embedded with a spring pin, an executing part of the spring pin extends out of the outer side of the inserting column, the fourth sleeve is provided with an opening for inserting the executing part of the spring pin, when the third sleeve and the fourth sleeve are positioned on the same straight line, the inserting column is inserted into the opening, and the spring pin is inserted into the opening.

Preferably, the two adjacent cross rods are connected through a first connecting piece at the top of the upright column, the two adjacent cross rods are arranged at the bottom of the upright column and are installed on one side of the bottom end of the upright column through a second connecting piece, and a sliding column is connected between the first connecting piece and the second connecting piece.

Preferably, first connecting piece includes the connection lagging, connects the lagging both ends and has the slidable balladeur train at the traveller outer wall through fixture block horizontal installation respectively, and the inner peripheral surface of balladeur train all supports the horizontal pole.

Preferably, the stand column is provided with a connecting plate through a second connecting piece, the connecting plate is in a shape, and the opposite sides of the two connecting plates are provided with bed bottom compression bars which are horizontally arranged.

Preferably, the outer wall buckle of depression bar is connected with the fixer at the bottom of the bed, and the fixer includes the buckle at the bottom of the bed half arc cardboard of depression bar and connects the first even board in half arc cardboard one side, and the extension one side fixedly connected with second of first even board links the board, and is connected for the arc between first even board and the second links the board.

Preferably, the connecting plate is movably connected with the upright column, and an adjuster capable of adjusting the height of the upright column is arranged between the connecting plate and the second connecting piece.

Third, beneficial effect

Compared with the prior art, the integrated installation-free bed guardrail can realize the universality of thick and thin mattresses, is more stable and stable than the bed guardrails on the common market, is more convenient to install, can realize the packing of the cloth cover after the installation in a factory through the folding of all parts, can be used by a customer only after placing the bed bottom pressure rod and then strutting the guardrail to install on a bed body, is convenient for the preassembling of the cloth cover, can be directly unfolded and installed during the assembling, and is particularly convenient for some female users to use and assemble.

Particularly, the upright posts and the cross rods are connected through the connecting pieces and form a rectangular frame surrounding the mattress, the cross rods arranged at the bottom ends of the upright posts are located at the top of the mattress and compress the mattress fixedly, and the upright posts and the cross rods are vertically connected and form the rectangular frame, so that the guardrail has high stability. When folding the horizontal pole, move towards the direction of first spring through holding down the button, the button supports and pushes away the inserted bar at the inclined plane of inserted bar extrusion in the button removal in-process, the inserted bar moves towards the inside of second sleeve under the effect on inclined plane this moment, the inserted bar moves for a certain distance back inserted bar follow the inside roll-off of first sleeve, then hold first sleeve and second sleeve respectively in user's both hands, then exert pressure and make the horizontal pole take place to fold, and in the same way, exert pressure to first sleeve and second sleeve when the installation and make first pole portion coaxial with second pole portion, the inserted bar inserts first sleeve intraduct and fixes after first pole portion and the coaxial second pole portion.

According to the utility model, two adjacent cross bars at the top of the upright post are fixedly connected through the first connecting piece, two adjacent cross bars at the bottom of the upright post are fixedly connected through the second connecting piece, the connecting part of the end parts of the two adjacent cross bars at the bottom of the upright post and the second connecting piece is rotatably connected and can rotate, the sliding frame can be separated from the connecting sleeve plate by removing the clamping block on the connecting sleeve plate, and then the sliding frame can slide on the outer wall of the sliding post, so that the cross bars at the top of the upright post can be separated from the connecting sleeve plate, and then the cross bars can be separated from the sliding frame to fold the cross bars, thereby further reducing the occupied space of the guardrail.

The length of the guardrail can be locked through the adjuster, so that the height of the guardrail can be controlled, the clamping connection between the first rack and the second rack is released by adjusting the movable clamping block on the inner side of the second connecting piece during adjustment, then the whole guardrail can be moved up and down, and after the position adjustment of the guardrail is finished, the position of the movable clamping block on the inner side of the second connecting piece is restored to enable the first rack and the second rack to be clamped and fixed again, so that the height of the guardrail can be accurately adjusted.

Drawings

FIG. 1 is a perspective view of the present invention after placement of a mattress;

FIG. 2 is a perspective view of the present invention with the mattress removed;

FIG. 3 is a folded perspective view of the present invention;

FIG. 4 is a perspective view of a hinge of the present invention;

FIG. 5 is a perspective view of the hinge assembly of the present invention after folding;

FIG. 6 is a top view of the hinge of the present invention;

FIG. 7 is a cross-sectional view of a hinge C-C of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 2 according to the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 2 taken at B in the present invention;

FIG. 10 is a perspective view of the anchor of the present invention;

FIG. 11 is a perspective view of the regulator of the present invention;

FIG. 12 is a front view of the regulator of the present invention;

FIG. 13 is a cross-sectional view of a regulator B-B of the present invention;

FIG. 14 is a perspective view of a plurality of sets of cross bars of the present invention;

FIG. 15 is a perspective view of a hinge member according to embodiment 3 of the present invention;

FIG. 16 is a front view of a hinge according to embodiment 3 of the present invention;

FIG. 17 is a cross-sectional view at section A-A of FIG. 16;

FIG. 18 is a cross-sectional view at section B-B of FIG. 16;

FIG. 19 is a perspective view of a hinged member of embodiment 3 of the present invention after folding;

FIG. 20 is a front view of the hinged member of embodiment 3 of the present invention after folding;

FIG. 21 is a cross-sectional view at section C-C of FIG. 20;

in the figure:

1 is a column;

2 is a cross bar; 2a is a first rod part; 2b is a second rod part; 2c is a hinge; 2c1 is a first sleeve; 2c2 is a second sleeve; 2c3 is a button; 2c4 is a bevel; 2c5 is a first spring; 2c6 is a plunger; 2c7 is a second spring; 2d is a second hinge; 2d1 is a third sleeve; 2d2 is a plug; 2d3 is a spring pin; 2d4 is a fourth sleeve; 2d5 is an opening; 2d6 is an opening;

3 is a connecting piece; 3a is a first connecting piece; 3a1 is a connecting sleeve plate; 3a2 is a carriage; 3b is a second connecting piece; 3c is a sliding column;

4 is a connecting plate;

5 is a bed bottom pressure bar;

6 is a fixer; 6a1 is a semi-arc card board; 6a2 is a first connecting plate; 6a3 is a second connecting plate;

7 is a regulator; 7a is a movable clamping block; 7b is a first rack; and 7c is a second rack.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

Example 1:

as shown in fig. 1 to 14, the installation-free bed guardrail of the embodiment is applied to a bed with a mattress, and comprises a support and a guardrail, wherein the support is clamped between the bed and the mattress, and the guardrail is fixedly connected with the support; the mattress is characterized in that the supports are arranged at the head end and the tail end of the bed, the guardrails are foldable, and the guardrails and the supports are combined into a whole body surrounding the mattress after being unfolded.

Because the guardrail surrounds whole mattress through supporting to the guardrail makes up into a whole with supporting, thereby makes guardrail and support all by the restriction for the ascending removal of mattress orientation arbitrary one side, just also makes the guardrail can not move in the use, just also can not appear the dislocation yet, the problem that drops, and the guardrail is folding customer's of being convenient for installation, only need with the guardrail expand can.

As shown in fig. 1 and 2, the guard rail includes a plurality of posts 1, a plurality of cross bars 2, and connectors 3; the upright posts 1 and the cross bars 2 are connected through connecting pieces 3 and form a rectangular frame surrounding the mattress, and the support is connected with any one of the upright posts 1, the cross bars 2 and the connecting pieces 3; the cross rod 2 comprises a first rod part 2a, a second rod part 2b and a hinge part 2c, the first rod part 2a is hinged to the second rod part 2b through the hinge part 2c, and the guardrail is in an unfolding state when the first rod part 2a and the second rod part 2b are located on the same straight line.

During the installation, stand 1 is connected and forms the rectangular frame who surrounds the mattress through connecting piece 3 with horizontal pole 2, and installs and lie in the top of mattress at the horizontal pole 2 of 1 bottom of stand and compress tightly fixedly to the mattress, again because be perpendicular connection and constitute rectangular frame between stand 1 and the horizontal pole 2 for the guardrail has stronger stability.

Further, in order to make the cross bar 2 foldable for the convenience of storage and installation for customers, in order to solve this problem, as shown in fig. 3:

hinge 2c comprises a first sleeve 2c1 and a second sleeve 2c2, one end of first sleeve 2c1 is hinged to one end of second sleeve 2c2, first sleeve 2c1 is sleeved on one end of first rod 2a, and second sleeve 2c2 is sleeved on one end of second rod 2 b.

Based on the embodiment, constitute by first pole portion 2a and second pole portion 2b through horizontal pole 2, and first pole portion 2a is installed on first sleeve pipe 2c1 of articulated elements 2c, second pole portion 2b is installed on second sleeve pipe 2c2 of articulated elements 2c, only need just can fold first pole portion 2a and second pole portion 2b through articulated elements 2c and make guardrail occupation space diminish convenient for install when needs are folded with the guardrail, and on the same reason, only need just can make the guardrail have stability with first pole portion 2a and second pole portion 2b are coaxial through articulated elements 2c when needs installation guardrail.

Further, in order to solve the problem of how to fold and mount the cross bar 2 and how to ensure the stability of the cross bar 2 after mounting, as shown in fig. 4 to 7:

the hinge 2c further includes a button 2c3, a ramp 2c4, a first spring 2c5, a plunger 2c6, and a second spring 2c 7; the button 2c3 is slidably connected with the first sleeve 2c1, and the sliding direction of the button 2c3 is perpendicular to the axis of the first sleeve 2c 1; the first spring 2c5 is arranged inside the first sleeve 2c1, the axis of the first spring 2c5 is parallel to the sliding direction of the button 2c3, and two ends of the first spring 2c5 abut against the first sleeve 2c1 and the button 2c3 respectively; the inserted rod 2c6 is slidably arranged on the second sleeve 2c2, and the sliding direction of the inserted rod 2c6 is parallel to the axis of the second sleeve 2c 2; the second spring 2c7 is arranged inside the second sleeve 2c2, the axis of the second spring 2c7 is coaxial with the axis of the second sleeve 2c2, and two ends of the second spring 2c7 abut against the inserted rod 2c6 and the second rod part 2b respectively; the push button 2c3 is provided with a slope 2c4 near the plunger 2c6, the slope 2c4 abuts against the plunger 2c6, and when the push button 2c3 moves towards the inside of the first sleeve 2c1, the plunger 2c6 moves towards the inside of the second sleeve 2c2 under the action of the slope 2c 4.

When the cross bar 2 is folded, the 2c5 is moved towards the direction of the first spring by pressing the button 2c3, the push button 2c3 presses the inserted link 2c6 against the inclined surface 2c4 of the inserted link 2c6 during the movement of the push button 2c3, at this time, the inserted link 2c6 moves towards the inside of the second sleeve 2c2 under the action of the inclined surface 2c4, the inserted link 2c6 slides out of the inside of the first sleeve 2c1 after the inserted link 2c6 moves for a certain distance, then the first sleeve 2c1 and the second sleeve 2c2 are respectively held by the two hands of a user, and then pressure is applied to fold the cross bar 2, and similarly, when the first sleeve 2c1 and the second sleeve 2c2 are pressed to enable the first rod part 2a and the second rod part 2b to be coaxial during installation, and the inserted link 2c6 is inserted into the inside of the first sleeve 2c1 to be fixed.

Further, in order to fixedly connect two adjacent cross bars, in order to solve this problem, as shown in fig. 8 and 9:

the two adjacent cross rods 2 are connected through a first connecting piece 3a and positioned at the top of the upright post 1, the two adjacent cross rods 2 are arranged at the bottom of the upright post 1 and are installed on one side of the bottom end of the upright post 1 through a second connecting piece 3b, and a sliding column 3c is connected between the first connecting piece 3a and the second connecting piece 3 b.

Based on the embodiment, two adjacent horizontal poles in 1 top of stand carry out fixed connection through first connecting piece 3a, and two adjacent horizontal poles in 1 bottom of stand carry out fixed connection through second connecting piece 3b to the junction of two adjacent horizontal poles in 1 bottom of stand 2 tip and second connecting piece 3b is connected for rotating, can take place to rotate, and the folding occupation space that reduces the guardrail of being convenient for.

As shown in fig. 2 and 9, the first connecting member 3a includes a connecting sleeve plate 3a1, a carriage 3a2 slidably mounted on the outer wall of the sliding post 3c is horizontally mounted at both ends of the connecting sleeve plate 3a1 through a latch, and the cross bar 2 is supported on the inner circumferential surface of the carriage 3a 2.

According to the embodiment, before the cross bar 2 needs to be folded, the sliding frame 3a2 can be separated from the connecting sleeve plate 3a1 by removing the clamping blocks on the connecting sleeve plate 3a1, then the sliding frame 3a2 can slide on the outer wall of the sliding column 3c, so that the cross bar 2 on the top of the upright post 1 can be separated from the connecting sleeve plate 3a1, and then the cross bar 2 can be separated from the sliding frame 3a2 to fold the cross bar 2, and the occupied space of the guardrail is further reduced.

Further, in order to fix the mattress, in order to solve the problem, as shown in fig. 3:

the stand 1 installs connecting plate 4 through second connecting piece 3b, and connecting plate 4 is L shape, and the relative one side of two connecting plates 4 is installed the bed bottom depression bar 5 of level setting.

Based on the embodiment, before the guardrail is installed to needs, place the mattress at the bottom of the bed depression bar 5 top after placing at first with the bottom of the bed depression bar 5, then compress tightly fixedly the bottom of the bed depression bar 5 through connecting plate 4 with the guardrail after will expanding, then compress tightly at the mattress top at horizontal pole 2 through the guardrail bottom, it is fixed with the mattress through horizontal pole 2 and bottom of the bed depression bar 5 to can prevent the activity of the bottom of the bed depression bar 5 through connecting plate 4 that sets up, improve the firm degree of whole fixed.

As shown in fig. 3 and 10, the outer wall of the bed bottom compression bar 5 is connected with the fixer 6 in a snap-fit manner, the fixer 6 includes a semi-arc-shaped snap plate 6a1 snapped on the bed bottom compression bar 5 and a first connecting plate 6a2 connected to one side of the semi-arc-shaped snap plate 6a1, the extending side of the first connecting plate 6a2 is fixedly connected with a second connecting plate 6a3, and the first connecting plate 6a2 is connected with the second connecting plate 6a3 in an arc-shaped manner.

According to the embodiment, when the mattress is placed, one side of the mattress is observed to be tightly attached to the fixing device 6, so that the phenomenon of dislocation and falling of the mattress after installation is avoided.

Example 2:

compared with embodiment 1, as shown in fig. 11 to 13, in this embodiment, the connecting plate 4 is movably connected to the upright post 1, an adjuster 7 capable of adjusting the height of the upright post 1 is disposed between the connecting plate 4 and the second connecting member 3b, the adjuster 7 includes a movable clamping block 7a movably connected to the inner side of the second connecting member 3b, a first rack 7b is installed on one side of the connecting plate 4 facing the movable clamping block 7a, the first rack 7b extends along the length direction of the connecting plate 4, a second rack 7c is connected to one side of the movable clamping block 7a facing the connecting plate 4, and the movable clamping block 7a is in a clamping state when abutting against the first rack 7b through the second rack 7 c.

Based on the embodiment, make up into the flexible post that can stretch out and draw back between connecting plate 4 and the stand 1, then lock its length through regulator 7, thereby can control the height of guardrail, at first make first rack 7b and second rack 7 c's joint relieve through adjusting the inboard movable fixture block 7a of second connecting piece 3b when adjusting, then just can move about whole guardrail and reciprocate, after guardrail position control again with the inboard movable fixture block 7a position of second connecting piece 3b recover and make first rack 7b and second rack 7c joint fixed again, can the accurate guardrail height of adjusting.

The outer peripheral surfaces of the two upright posts close to the fixer 6 are also connected with a horizontal cross bar 2. This embodiment sets up a set of horizontal pole 2 and connects at 1 outer peripheral face top of two stands more at stand 1 top for the guardrail is more stable firm, is difficult to damage.

Example 3:

compared to embodiment 1, as shown in fig. 15 to 21, the hinge 2c also has a second embodiment, the hinge 2c includes a third sleeve 2d1 and a fourth sleeve 2d4 whose ends are hinged to each other, the third sleeve 2d1 is sleeved on one end of the first rod portion 2a, and the fourth sleeve 2d4 is sleeved on one end of the second rod portion 2 b; an end of the third sleeve 2d1, which is away from the first rod portion 2a, is provided with an outward-extending insertion post 2d2, the fourth sleeve 2d4 is provided with an opening 2d5 into which the insertion post 2d2 can be inserted, a spring pin 2d3 is installed in the insertion post 2d2 in an embedded manner, an executing portion of the spring pin 2d3 extends out of the insertion post 2d2, the fourth sleeve 2d4 is provided with an opening 2d6 into which the executing portion of the spring pin 2d3 can be inserted, when the third sleeve 2d1 and the fourth sleeve 2d4 are located on the same straight line, the insertion post 2d2 is inserted into the opening 2d5, and the spring pin 2d3 is inserted into the opening 2d 6.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (9)

1. A bed guardrail without installation is applied to a bed with a mattress, and comprises a support and a guardrail, wherein the support is clamped between the bed and the mattress, and the guardrail is fixedly connected with the support; the bed is characterized in that the supports are arranged at the head end and the tail end of the bed, the guardrails are foldable, and the guardrails and the supports are combined into a whole body surrounding the mattress after being unfolded;

the guardrail comprises a plurality of upright posts (1), a plurality of cross rods (2) and connecting pieces (3); the upright posts (1) and the cross bars (2) are connected through the connecting pieces (3) to form a rectangular frame surrounding the mattress, and the support is connected with any one of the upright posts (1), the cross bars (2) and the connecting pieces (3); the cross rod (2) comprises a first rod part (2a), a second rod part (2b) and a hinge part (2c), the first rod part (2a) is hinged with the second rod part (2b) through the hinge part (2c), and the guardrail is in an unfolding state when the first rod part (2a) and the second rod part (2b) are located on the same straight line.

2. An installation-free bed guardrail according to claim 1, characterized in that the hinge comprises two sleeves hinged to each other, one of the two sleeves being sleeved at one end of the first rod part (2a) and the other one being sleeved at one end of the second rod part (2 b).

3. An installation-free bed fence according to claim 2, characterized in that the hinge (2c) comprises a first sleeve (2c1) and a second sleeve (2c2), one end of the first sleeve (2c1) is hinged with one end of the second sleeve (2c2), the first sleeve (2c1) is sleeved on one end of the first rod part (2a), the second sleeve (2c2) is sleeved on one end of the second rod part (2 b); the hinge (2c) further comprises a button (2c3), a ramp (2c4), a first spring (2c5), a plunger (2c6), and a second spring (2c 7); the button (2c3) is connected with the first sleeve (2c1) in a sliding way, and the sliding direction of the button (2c3) is perpendicular to the axis of the first sleeve (2c 1); the first spring (2c5) is arranged inside the first sleeve (2c1), the axis of the first spring (2c5) is parallel to the sliding direction of the button (2c3), and two ends of the first spring (2c5) respectively abut against the first sleeve (2c1) and the button (2c 3); the inserted rod (2c6) is slidably arranged on the second sleeve (2c2), and the sliding direction of the inserted rod (2c6) is parallel to the axis of the second sleeve (2c 2); the second spring (2c7) is arranged inside the second sleeve (2c2), the axis of the second spring (2c7) is coaxial with the axis of the second sleeve (2c2), and two ends of the second spring (2c7) are respectively abutted against the inserted rod (2c6) and the second rod part (2 b); a slope (2c4) is arranged at a position, close to the inserted link (2c6), of the button (2c3), the slope (2c4) abuts against the inserted link (2c6), and when the button (2c3) moves towards the inside of the first sleeve (2c1), the inserted link (2c6) moves towards the inside of the second sleeve (2c2) under the action of the slope (2c 4).

4. An installation-free bed fence according to claim 2, characterized in that the hinge (2c) comprises a third sleeve (2d1) and a fourth sleeve (2d4) with the ends hinged to each other, the third sleeve (2d1) being sleeved at one end of the first rod part (2a) and the fourth sleeve (2d4) being sleeved at one end of the second rod part (2 b); one end of the third sleeve (2d1) far away from the first rod part (2a) is provided with an outward extending insertion column (2d2), an opening (2d5) for inserting the insertion column (2d2) is formed in the fourth sleeve (2d4), a spring pin (2d3) is installed in the insertion column (2d2) in an embedded mode, an execution part of the spring pin (2d3) extends out of the outer side of the insertion column (2d2), an opening (2d6) for inserting the execution part of the spring pin (2d3) is formed in the fourth sleeve (2d4), when the third sleeve (2d1) and the fourth sleeve (2d4) are located on the same straight line, the insertion column (2d2) is inserted into the opening (2d5), and the spring pin (2d3) is inserted into the opening (2d 6).

5. An installation-free bed guardrail as claimed in claim 1, characterized in that the two adjacent cross bars (2) positioned at the top of the upright (1) are connected by a first connecting piece (3a), the two adjacent cross bars (2) positioned at the bottom of the upright (1) are installed at one side of the bottom end of the upright (1) by a second connecting piece (3b), and a sliding column (3c) is connected between the first connecting piece (3a) and the second connecting piece (3 b).

6. An installation-free bed guardrail according to claim 5, characterized in that the first connecting piece (3a) comprises a connecting sleeve plate (3a1), the two ends of the connecting sleeve plate (3a1) are respectively horizontally provided with a carriage (3a2) which can slide on the outer wall of the sliding column (3c) through a clamping block, and the inner circumferential surface of the carriage (3a2) is supported with the cross bar (2).

7. An installation-free bed guardrail as claimed in claim 1, wherein the upright (1) is provided with a connecting plate (4) through a second connecting piece (3b), the connecting plate (4) is L-shaped, and a bed bottom pressure rod (5) which is horizontally arranged is arranged at one side of the two connecting plates (4).

8. An installation-free bed guardrail as claimed in claim 7, wherein the external wall of the bed bottom pressure lever (5) is connected with a fixer (6) in a buckling manner, the fixer (6) comprises a semi-arc-shaped clamping plate (6a1) buckled on the bed bottom pressure lever (5) and a first connecting plate (6a2) connected to one side of the semi-arc-shaped clamping plate (6a1), a second connecting plate (6a3) is fixedly connected to one side of the first connecting plate (6a2), and the first connecting plate (6a2) is connected with the second connecting plate (6a3) in an arc manner.

9. An installation-free bed guardrail as claimed in claim 7, wherein the connecting plate (4) is movably connected with the upright (1), and a regulator (7) capable of regulating the height of the upright (1) is arranged between the connecting plate (4) and the second connecting piece (3 b).

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