CN209932132U

CN209932132U - Bed guardrail door connecting structure

Info

Publication number: CN209932132U
Application number: CN201920035191.3U
Authority: CN
Inventors: 唐凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-01-14
Anticipated expiration: 2029-01-09

Abstract

The utility model provides a bed guardrail door connection structure, includes bed guardrail frame and door structure, the door structure passes through the dwang and rotates to be installed on the bed guardrail frame, bed guardrail frame includes stand and horizontal pole, the door structure includes free end and rotation end, the free end pass through locking structure with bed guardrail frame mobilizable links to each other, still including locating rotate the structure that rises back of holding the lower part, the structure that rises back makes the door structure is when the rotatory door that closes, and high rising works as the door structure rotatory to with during the latched position department of bed guardrail frame, the door structure whereabouts and locking. The beneficial effects of the utility model include: the utility model discloses a lift unblock, automatic door structure bed guardrail that rises that returns can make the bed guardrail open the door convenient and safe laborsaving again.

Description

Bed guardrail door connecting structure

Technical Field

The utility model belongs to a children furniture appurtenance, concretely relates to bed guardrail door connection structure.

Background

The bed guardrail is a device which is arranged around the bed periphery and is used for preventing children from rolling down and falling down when sleeping. Most of existing bed guardrails are single-side guardrails in a folding mode, but the structure occupies a large space when the guardrail is turned down and is inconvenient to store. The bed guardrail of another type just can realize vertical lift, has reduced the shortcoming of taking too much area, but current bed guardrail elevating gear adopts along pole lift more, goes up and down to hinder puckery and sound great influence children sleep when going up and down. Independent door structure is seted up less on current bed guardrail, and the design rationality between door structure and the bed guardrail frame, the smooth and easy and safe of unblock logic greatly relate to the use of bed guardrail and experience.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lift unblock, automatic rise, safe convenient crib guardrail door connection structure that rises to the not enough of existence among the above-mentioned prior art.

The utility model adopts the following technical scheme:

the utility model provides a bed guardrail door connection structure, includes bed guardrail frame and door structure, the door structure passes through the dwang and rotates to be installed on the bed guardrail frame, bed guardrail frame includes stand and horizontal pole, the door structure includes free end and rotation end, the free end pass through locking structure with bed guardrail frame mobilizable links to each other, still including locating rotate the structure that rises back of holding the lower part, the structure that rises back makes the door structure is when the rotatory door that closes, and high rising works as the door structure rotatory to with during the latched position department of bed guardrail frame, the door structure whereabouts and locking. Traditional bed guardrail does not have door opener's setting very much, and generally supports to lean on through rotatory buckle and lock, and maloperation is opened more easily to this mode child, guarantees inadequately to the security of bed guardrail, and this novel adoption rises back the structure, turns to the automatic height that rises of process, and convenient lock that falls is more laborsaving.

Preferably, the lifting structure comprises a rotation fixing part connected with the bed guardrail frame and a rotation moving part connected with the door structure, and the rotation fixing part and the rotation moving part are matched through a ratchet and a ratchet groove. The ratchet groove rotates along the ratchet, and a lifting height is given to the door structure along with the arc height of the ratchet, so that the lifting effect is realized.

Preferably, the engaging edge of the ratchet tooth and the ratchet groove comprises an arc segment, the arc segment comprises a high position and a low position, and when the ratchet groove rotates along the arc segment on the ratchet tooth, the door structure rises from the low position to the high position under the abutting action of the ratchet tooth.

Preferably, the matching edge of the ratchet and the ratchet groove further comprises a falling section, the falling section is a connecting section between the high position and the low position of two adjacent circular arc sections, and the ratchet groove falls on the falling section under the self weight.

Preferably, the falling section is vertical, and the vertical falling section can reduce the friction force generated by the action of gravity in the falling process, so that the ratchet grooves can fall freely.

Preferably, the rotation fixing part comprises a ring part, a positioning part is arranged on the ring part, the ring part is sleeved on the stand column and is fixed with the stand column through the positioning part, and the height of the falling section is not less than the lifting unlocking height required by the door structure.

Preferably, the bed guardrail structure further comprises a locking structure, the free end is movably connected with the bed guardrail frame through the locking structure, and when the bed guardrail structure is unlocked, the locking structure is opened, the free end of the door structure is lifted up, and the door is opened in a rotating mode.

Preferably, the locking structure comprises at least one pair of first insertion part and second insertion part which are connected in an insertion mode, and at least one pair of lock head and lock hole which are movably connected, the first insertion part and the second insertion part are respectively arranged at the relative positions of the bed guardrail frame and the free end of the door structure, the lock head and the lock hole are respectively arranged at the relative positions of the bed guardrail frame and the free end of the door structure, the lock head is pressed to enable the lock head to withdraw from the lock hole, the free end is lifted to enable the first insertion part and the second insertion part to be separated, and unlocking is completed.

Preferably, a rotating part is arranged on the door structure or the bed guardrail frame, and the first inserting part is arranged on the rotating part.

Preferably, an elastic member is provided between the door structure and the rotating portion or between the bed guardrail frame and the rotating portion, and the elastic member has an elastic force that causes the rotating portion to rotate so that the first insertion part and the second insertion part rotate apart.

The beneficial effects of the utility model include: the utility model discloses a lift unblock, automatic door structure bed guardrail that rises that returns can make the bed guardrail open the door convenient and safe laborsaving again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic view of a door structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a locking structure according to an embodiment of the present invention;

fig. 4 is a schematic diagram showing the combination of components of the locking structure according to an embodiment of the present invention;

fig. 5 is a schematic view of a locking structure according to another embodiment of the present invention;

fig. 6 is a schematic view of a locking and positioning structure according to an embodiment of the present invention;

fig. 7 is a schematic view of a locking and positioning structure according to another embodiment of the present invention;

fig. 8 is a schematic view of a positioning structure for lifting back in an embodiment of the present invention;

fig. 9 is a schematic view of a locking structure according to another embodiment of the present invention;

fig. 10 is an exploded view of a locking mechanism according to another embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate.

It should be noted that the terms "mounted," "disposed," "provided," "connected," and "sleeved" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1-2, a bed guardrail comprises a bed guardrail frame 1 and a door structure 2. The bed guardrail frame 1 comprises an upper cross bar 11, a lower cross bar 12, a left upright post 13 and a right upright post 14, wherein two ends of the upper cross bar 11 are respectively inserted with a movable unit 15, the upper ends of the left and right upright posts (13, 14) are respectively inserted with a fixed unit 16, and the fixed unit 16 and the movable unit 15 are movably connected through a locking structure 5. The door structure 2 is composed of a four-side frame, and the door structure 2 is rotatably installed on the bed guardrail frame 1 through a rotating rod 3. Preferably, the turning rod 3 is arranged in parallel with the left upright 13.

In other embodiments, the turning rod 3 may also be provided integrally with the left upright 13 or the right upright 14.

The upper and lower ends of the door structure 2 connected to the rotating rod 3 are an upper rotating end 21 and a lower rotating end 22, respectively, and the other corresponding ends are an upper free end 23 and a lower free end 24, respectively. The upper free end 23 is movably connected with the right upright post 14 on the bed guardrail frame 1 through the locking structure 5, the lower free end 24 is movably connected with the right upright post 14 on the bed guardrail frame 1 through the positioning structure 7, and the lower rotating end 22 is movably connected with the left upright post 13 on the bed guardrail frame 1 through the lifting structure 8. When unlocking, the locking structure is opened, the upper free end 4 of the door structure 1 is lifted upwards, and the door is opened in a rotating mode.

In other embodiments, the rotating rod 3 can also be used as one of the frames in the door structure 2, and can be selected as required according to actual needs. The selection of locking structures 5, lifting structures 8 and positioning structures 7 may also be selectively applied. The combination of arbitrary two kinds of structures guarantees that bed guardrail door structure need realize the unblock under the condition of lifting can.

Referring to fig. 8, the lifting structure 8 causes the door structure 2 to rise in height when the door structure 2 is rotated to close the door, and when the door structure 2 is rotated to a locking position with the bed guardrail frame 1, the door structure 2 falls down, causing the door structure 2 to be locked with the bed guardrail frame 1 by the locking structure 5.

The lifting structure 8 comprises a rotation fixing part 81 connected with the bed guardrail frame 1 and a rotation moving part 82 connected with the door structure 1, the rotation fixing part 81 and the rotation moving part 82 are matched through a ratchet 83 and a ratchet groove 84. The ratchet groove 84 and the ratchet 83 are arranged up and down, and the matching track of the ratchet groove 84 and the ratchet 83 is the combination of the arc section 85 and the linear falling section 86. Wherein the arc segment 85 comprises an upper position 851 and a lower position 852, and when the ratchet groove 84 rotates along the arc segment 85 on the ratchet 83, the door structure 1 rises from the lower position 852 to the upper position 851 under the abutting action of the ratchet 83. The falling section 86 is a connecting section between the high position 851 and the low position 852 of two adjacent arc sections 85, and the ratchet groove 84 is on the falling section 86 and falls freely under the self-weight. When the door structure 1 rotates, the ratchet groove 84 on the rotation movable portion 82 first rotates along the arc section 85 of the ratchet 83, and due to the abutting cooperation between the ratchet groove 84 and the ratchet 83, the rotation movable portion 82 rises from the low position 852 to the high position 851 relative to the rotation fixed portion 81, and when the ratchet groove 84 rotates to the falling section 86 of the ratchet 83, it falls freely under the action of its own weight, falls back to the low position 852 on the other adjacent arc section 85, and starts the next round of rising.

The lifting height of the lifting structure 8 is adapted to the required lifting unlocking height or the lifting height of the lifting structure 8 is greater than the lifting unlocking height. The lifting height required by lifting and unlocking corresponds to the height of the falling section 86 of the ratchet 83 and the ratchet groove 84, or larger height is reserved for lifting, so that when the door structure 2 is opened and closed, the height can be automatically adjusted, and the door structure is labor-saving and convenient. In the present embodiment, the number of the ratchet teeth 83 and the ratchet grooves 84 is preferably 4 pairs, that is, the door opening angle is about 90 degrees, in other embodiments, 3 pairs of the ratchet teeth 83 and the ratchet grooves 84 can be selectively arranged, the door opening angle is kept about 120 degrees, and different numbers of the ratchet teeth 83 and the ratchet grooves 84 can also be adaptively arranged to control the door opening rotation range or more adaptively lift up the unlocking height.

The rotation fixing part 81 also includes a ring part 731, the ring part 731 is provided with a positioning part 811, and the ring part 731 is sleeved on the upright 813 of the bed guardrail frame 1 and fixed with the upright through the positioning part 811. The positioning portion 812 may have various forms, such as a strip-shaped protrusion, a circular protrusion, or other fastening and inserting structures.

In other embodiments, the door can be simply locked by the cooperation of the locking structure 5 and the lifting structure 8, and the positioning structure 7 can be selectively matched, so as to ensure better locking effect.

Referring to fig. 6, at the lower free end 4 of the door structure 2, a positioning structure 7 is provided, which positioning structure 7 at least limits the inner and outer displacement of the door structure 2 with respect to the bed guard frame 1. The positioning structure 7 comprises a protrusion 71 and a groove 72, the door structure 2 is provided with the protrusion 71, the bed guardrail frame 1 is provided with the groove 72, the protrusion 71 is inserted into the groove 72 to realize positioning, the protrusion 71 and the groove 72 are strip-shaped, and the protrusion 71 is arranged at the bottom of the lower free end 4. The fixing part 73 is arranged on the upright post of the bed guardrail frame 1, the fixing part 73 comprises a ring part 731 fixedly sleeved with the upright post and a connecting end 732 fixedly sleeved with the lower cross bar 12, and the groove 72 is arranged above the connecting end 732 of the fixing part 73 of the bed guardrail frame 1 and is higher than the upper surface of the connecting end 732. Lifting the projection 71 causes the projection 71 to clear the recess 72, completing the separation of the bed guardrail frame 1 from the door structure 2.

Referring to fig. 7, another embodiment of the positioning structure 7 of the present invention is different from the above embodiments in that: the positioning structure 7 comprises a protrusion 71 and a groove 72, the protrusion 71 is an elastic protrusion, and the protrusion 71 is telescopically arranged on the left side of the free end of the door structure 2 through an elastic member, here a spring. The groove 72 is an open groove formed by two fins extending towards the right side direction of the door structure 2 and encircling oppositely from one side of the connecting piece of the lower cross bar 12 and the left upright post 13, the outer surface of the groove is arc-shaped, the wall thickness is the smallest at the opening, and a bayonet structure which is convenient for the elastic bulge 72 to slide in and is difficult to withdraw is formed. In the revolving door structure 2, the elastic protrusion 71 can slide into the groove 72 under the deformation action of the spring to realize positioning, but due to the existence of the bayonet structure, the elastic protrusion 71 is difficult to exit in the original way, and an operator needs to lift the door structure 2 to drive the elastic protrusion 71 to move upwards to pass through the groove to realize unlocking.

In other embodiments, the groove may be further configured to be an open groove formed by two fins extending from one side of the connecting member of the bottom rail 12 and the left upright 13 toward the upper side of the door structure 2 and encircling relatively, and the elastic protrusion 71 is telescopically disposed at the lower side of the free end of the door structure 2, and similarly, a bayonet structure is disposed at the notch of the groove, so that the operator needs to lift the door structure 2 to drive the elastic protrusion 71 to cross the height of the groove to unlock the door structure.

In other embodiments, the elastic protrusion 71 may be implemented by a combination of other elastic elements and fixing protrusions, such as a spring plate, a tension spring, an elastic rope, or the like, or may be made of a material that can elastically deform itself. The projections 71 may be provided as cylindrical bumps.

In other embodiments, the positions of the protrusion 71 and the groove 72 may be selectively set, and only when the door structure 2 and the bed guardrail frame 1 cannot be displaced in the inward and outward directions in the normal locking state, only an upward moving space is reserved, and the lifting and unlocking are required.

In order to guarantee the uniformity of 2 rotatory in-process of door structure, can add in the frame and establish the stiffener, the stiffener is parallel with 2 four sides frames of door structure for improve 2's of door structure fastness, reduce the distortion and rock.

The locking structure 5 has various choices, and the lifting unlocking and falling locking mode is matched with the lifting structure more easily.

See FIGS. 9-10, 5

The locking structure 5 comprises a pair of first plug-in structures which are plug-in connected: the first inserting-connecting part 51 and the second inserting-connecting part 52, preferably, the first inserting-connecting part 51 is a plug, the second inserting-connecting part 52 is a slot matched with the first inserting-connecting part 51, the first inserting-connecting part 51 is arranged on the movable unit 15, and the second inserting-connecting part 52 is arranged on the fixed unit 16.

The first mating portion 51 is provided with a locking hole 53. The locking hole 53 is circular and is disposed at one end of the first insertion portion 51. The movable unit 15 is provided with a locking head 54, and the locking head 54 can movably enter or exit the locking hole 53 to realize locking or unlocking. The locking head 54 has a wedge-shaped end surface to facilitate insertion into and withdrawal from the locking hole 53. A second elastic member 55 is disposed between the locking head 54 and the locking hole 53, the second elastic member 55 is preferably a spring, and the second elastic member 55 has an elastic force that allows the locking head 54 to return to an original position with respect to the locking hole 53 after being pressed. The lock head 54 moves in the plane perpendicular to the bed guard rail frame and perpendicular to the inserting direction of the first inserting structure.

In other embodiments, the second elastic element 55 may selectively adopt a tension spring, a rubber band, an elastic sheet, or a flexible memory silicone rubber.

In this embodiment, the locking structure 5 further comprises another pair of second plug structures which are plug-connected: a third plugging part 56 and a fourth plugging part 57, preferably, the third plugging part 56 is a plug, the fourth plugging part 57 is a slot matched with the third plugging part 56, the third plugging part 56 is arranged on the fixed unit 16, and the fourth plugging part 57 is arranged on the movable unit 15. The plugging directions of the first plugging structure and the second plugging structure are respectively perpendicular to the moving direction of the lock head 54. The operator presses the locking structure 5 to withdraw the locking head 54 from the locking hole 53, lifts the movable unit 15, the first inserting structure,

And separating the second inserting structure to finish unlocking.

In other embodiments, the positions of the plug and the slot can be interchanged, and the shapes of the plug and the slot can be selectively selected from conventional shapes such as a circular slot, a strip-shaped slot and the like.

Referring to fig. 3-4, there is another embodiment of the locking structure 5 of the present invention. The locking structure 5 comprises a pair of first plug-in structures which are plug-in connected: in the present embodiment, preferably, the first insertion portion 51 is a plug, the second insertion portion 52 is a slot matched with the first insertion portion 51, the first insertion portion 51 is disposed on the movable unit 15, and the second insertion portion 52 is disposed on the fixed unit 16. The first plug-in part 51 is a strip-shaped block, and the second plug-in part 52 is a strip-shaped groove matched with the strip-shaped block. The first plug part 51 is plugged in the middle of the fixing unit 16 to prevent the clamping of hands in the plugging process. The movable unit 15 is provided with a rotating part 6, and the first insertion part 51 is provided on the rotating part 6. The first insertion part 51 is driven to rotate relative to the movable unit 15 and is inserted into the second insertion part 52 from the top to the bottom, and the insertion axis direction is the cross rod direction.

In other embodiments, the positions of the plug and the socket can be interchanged, and are selected according to actual conditions.

The first plugging part 51 is provided with a locking hole 53, and the locking hole 53 is circular and is arranged at one end of the first plugging part 51 far away from the rotating part 6. The movable unit 15 is provided with a locking head 54, and the locking head 54 can movably enter or exit the locking hole 53 to realize locking or unlocking. The locking head 54 has a wedge-shaped end surface to facilitate insertion into and withdrawal from the locking hole 53. A second elastic member 55 is disposed between the locking head 54 and the locking hole 53, the second elastic member 55 is preferably a spring, and the second elastic member 55 has an elastic force that allows the locking head 54 to return to an original position with respect to the locking hole 53 after being pressed. The lock 54 moves in a direction perpendicular to the insertion direction of the first insertion structure, and moves in and out of a plane formed by the bed guardrail frame.

In this embodiment, the locking structure 5 further comprises another pair of second plug structures which are plug-connected: a third plugging part 56 and a fourth plugging part 57, preferably, the third plugging part 56 is a plug, the fourth plugging part 57 is a slot matched with the third plugging part 56, the third plugging part 56 is arranged on the fixed unit 16, and the fourth plugging part 57 is arranged on the movable unit 15. The third mating parts 56 are symmetrically arranged V-shaped protrusions, and the fourth mating parts 57 are V-shaped grooves matching the V-shaped protrusions. The first inserting-connecting part 51 is driven to rotate relative to the movable unit 15, from top to bottom, the first inserting-connecting part 51 is inserted into the second inserting-connecting part 52, the third inserting-connecting part 56 is inserted into the fourth inserting-connecting part 57, and the inserting axis direction of the second inserting-connecting structure is the column direction. The V-shaped plug and the slot are convenient to arrange, have larger contact area in the initial plugging stage and are convenient to insert. The plugging directions of the first plugging structure and the second plugging structure are respectively perpendicular to the moving direction of the lock head 54.

In the present embodiment, a first elastic member 58 is provided between the movable unit 15 and the rotating portion 6, and the first elastic member 58 has an elastic force that rotates the rotating portion 6 to rotationally separate the first and

second insertion portions

51 and 52. The first elastic member 58 is disposed on the fixing seat 57 on the movable unit, the first elastic member 58 is a spring, one end of the spring abuts against or is connected to the first inserting-connecting portion 51, and the other end of the spring is sleeved on the fixing seat 57. In a natural state, the first elastic element 58 respectively abuts against the first insertion part 51 and the second insertion part 52, and the separation state of the insertion structure is kept. The operator applies force to the first plug part 51, the first plug part 51 rotates under the action of the rotating part 6, and the first plug structure, the second plug structure, the lock head 54 and the lock hole 53 are locked and locked. During unlocking, the locking head 54 is pressed, so that the locking head 54 is separated from the locking hole 53, the first inserting-connecting part 51 rotates to rebound under the action of the elastic force of the spring, and the first inserting-connecting structure and the second inserting-connecting structure are separated respectively to complete unlocking.

In other embodiments, the first elastic element 58 can be mounted by interference, or by a guiding stud socket, or by a fixed connection at one end or a fixed connection at both ends, etc. The first elastic member may also be configured as a torsion spring, which is coaxially disposed with the rotation shaft and rotatably connected with the first inserting portion 51 and the movable unit 15, respectively.

In other embodiments, the first elastic member 58 may be disposed between the fixed unit 16 and the rotating portion 6 in the same manner as that disposed on the movable unit 15.

Referring to fig. 5, there is another embodiment of the locking structure 5 of the present invention, which is different from the above embodiment in that: the first inserting portion 51 is a slot, the second inserting portion 52 is a plug matched with the first inserting portion 51, the first inserting portion 51 is arranged on the movable unit 15, and the second inserting portion 52 is arranged on the fixed unit 16. The first mating part 51 is a U-shaped cap-shaped groove and the second mating part 52 is recessed to match the shape of the cap-shaped groove. The first insertion part 51 is driven to rotate relative to the movable unit 15 and is inserted into the second insertion part 52 from the top to the bottom, and the insertion axis direction is the cross rod direction.

The specific positions of the first inserting structure and the second inserting structure, the specific shapes and the distribution of the plug and the slot can be selectively and reasonably adjusted, and the locking stability of the locking structure 5 can be limited by ensuring different angles in different coordinates. The locking structure can be arranged in one direction only, and the locking stability is further ensured by locking the locking head 54 and the locking hole 53.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a bed guardrail door connection structure, includes bed guardrail frame and door structure, the door structure passes through the dwang and rotates to be installed bed guardrail frame is last, bed guardrail frame includes stand and horizontal pole, the door structure includes free end and rotation end, the free end pass through locking structure with bed guardrail frame mobilizable links to each other its characterized in that: the lifting structure is arranged at the lower part of the rotating end, the height of the door structure rises when the door structure is closed in a rotating mode, and the door structure falls and is locked when the door structure rotates to a locking position with the bed guardrail frame.

2. The bed guardrail door connecting structure of claim 1, wherein: the lifting structure comprises a rotating fixed part connected with the bed guardrail frame and a rotating movable part connected with the door structure, and the rotating fixed part is matched with the rotating movable part through a ratchet and a ratchet groove.

3. A bed guardrail door connecting structure according to claim 2, characterized in that: the matching edge of the ratchet teeth and the ratchet tooth groove comprises an arc section, the arc section comprises a high position and a low position, and when the ratchet tooth groove rotates along the arc section on the ratchet teeth, the door structure rises from the low position to the high position under the abutting action of the ratchet teeth.

4. A bed guardrail door connecting structure according to claim 3, characterized in that: the matched edge of the ratchet and the ratchet groove further comprises a falling section, the falling section is a connecting section between the high position and the low position of the two adjacent arc sections, and the ratchet groove falls under the self weight on the falling section.

5. The bed guardrail door connecting structure of claim 4, wherein: the falling section is vertical.

6. A bed guardrail door connecting structure according to any one of claims 2 to 5, characterized in that: the rotating fixing part comprises a ring part, a positioning part is arranged on the ring part, the ring part is sleeved on the stand column, the falling section is fixed to the stand column through the positioning part, and the falling section is not smaller than the lifting unlocking height required by the door structure.

7. A bed guardrail door connecting structure according to any one of claims 1 to 5, characterized in that: the bed guardrail structure is characterized by further comprising a locking structure, the free end is movably connected with the bed guardrail frame through the locking structure, during unlocking, the locking structure is opened, the free end of the door structure is lifted upwards, and the door is opened in a rotating mode.

8. The bed guardrail door connecting structure of claim 7, wherein: the locking structure comprises at least one pair of first inserting part and second inserting part which are connected in an inserting mode, at least one pair of lock heads and lock holes which are movably connected, the first inserting part and the second inserting part are respectively arranged at the relative positions of the bed guardrail frame and the free end of the door structure, the lock heads and the lock holes are respectively arranged at the relative positions of the bed guardrail frame and the free end of the door structure, the lock heads are pressed to enable the lock heads to exit from the lock holes, the free ends are lifted to enable the first inserting part and the second inserting part to be separated, and unlocking is completed.

9. The bed guardrail door connecting structure of claim 8, wherein: the door structure or bed guardrail frame is provided with a rotating part, and the first inserting part is arranged on the rotating part.

10. A bed guardrail door connection structure according to claim 9, characterized in that: an elastic piece is arranged between the door structure and the rotating part or between the bed guardrail frame and the rotating part, and the elastic piece has an elastic force which enables the rotating part to rotate so as to enable the first inserting part and the second inserting part to rotate and separate.