Bed guardrail with folding limiting structure

Abstract

The utility model relates to the technical field of bed guardrails, in particular to a bed guardrail with a folding limiting structure, which comprises a guardrail body, and side guardrails are adjustably arranged on the side portions of the guardrail body through pivot assemblies. The hinge assembly comprises a first hinge piece, the first hinge piece is arranged on the side, close to the side guardrail, of the guardrail body, a second hinge piece is arranged on the side, close to the guardrail body, of the side guardrail, and the second hinge piece is in adjusting connection with the first hinge piece through a rotary fixing mechanism. The rotary fixing mechanism comprises a fixing sleeve, the fixing sleeve is arranged on the first pivot piece, a rotary sleeve is arranged on the fixing sleeve through a first adjusting structure, and the rotary sleeve is arranged on the second pivot piece. The folding chair has the characteristics of simplicity in operation, convenience in folding and no potential safety hazard.

Description

Technical Field

[0001] The utility model relates to the technical field of bed guardrails, and particularly relates to a bed guardrail with a folding limit structure. Background Art

[0002] A bed guardrail, also known as a bed rail or a bed board, is a guardrail built on the side of a bed to prevent a baby from rolling out of the bed while sleeping and plays a role in protecting the baby. Currently, there is no mandatory limit function added to the rotating shaft of the bed guardrails sold on the market. During use, the limit may easily fail, resulting in rotation at the rotating shaft, creating a protection loophole and posing a safety hazard of the baby falling out of the bed.

[0003] The patent document with the publication number "CN107836916A" discloses a children's bed guardrail, which includes an upper guardrail, a lower guardrail fixed beside the children's bed, and multiple connecting rods arranged between the upper guardrail and the lower guardrail; the upper end of the connecting rod is connected to the upper guardrail through an upper rotating shaft, and the lower end is connected to the lower guardrail through a lower rotating shaft. The upper guardrail and the lower guardrail are enclosed in a frame shape by connecting the head and tail of the connecting rods. The upper guardrail and the upper end of the connecting rod, and the lower end of the connecting rod and the lower guardrail rotate around the shaft through the upper rotating shaft and the lower rotating shaft respectively, and are relatively unfolded or folded with the lower rotating shaft on the lower guardrail as the folding point; multiple mattress pressing plates are also arranged on the lower guardrail; this solution has a simple structure, low cost, stable and reliable use, small folding volume, greatly facilitating packaging and transportation, and also facilitating consumers' storage. However, in this solution, no mandatory limit function is added. During use, the limit may easily fail, resulting in rotation at the rotating shaft, leading to a protection loophole and posing a risk of the baby falling out of the bed.

[0004] Therefore, the existing bed guardrails have problems of troublesome operation, inconvenient folding, and safety hazards. Summary of the Invention

[0005] In order to solve the above technical problems existing in the existing bed guardrails, the utility model provides a bed guardrail with a folding limit structure that is simple to operate, convenient to fold, and has no safety hazards. It has a mandatory limit function to ensure the stability and reliability of each component during use, thereby effectively preventing the rotation at the rotating shaft and reducing the risk of the baby falling out of the bed.

[0006] The technical solution of the utility model: A bed guardrail with a folding limit structure includes a guardrail body, and a side guardrail is adjustably arranged on the side of the guardrail body through a hub component;

[0007] The hub component includes a first hub member, the first hub member is arranged on one side of the guardrail body close to the side guardrail, a second hub member is arranged on one side of the side guardrail close to the guardrail body, and the second hub member is adjustably connected to the first hub member through a rotation fixing mechanism;

[0008] The rotation fixing mechanism includes a fixing sleeve disposed on the first pivot member, and a rotating sleeve is provided on the fixing sleeve through a first adjusting structure, and the rotating sleeve is disposed on the second pivot member.

[0009] By providing a pivot assembly in the present invention, the side guardrail can be adjusted in angle relative to the guardrail body, so that the bed guardrail can adapt to bed types of different widths, improving applicability and flexibility; the pivot assembly in the present invention is composed of a first pivot member, a second pivot member and a rotation fixing mechanism. When the angle adjustment between the first pivot member and the second pivot member is completed, the rotation fixing mechanism can provide a forced limiting function, allowing the user to easily adjust and fix the opening and closing angle between the side guardrail and the guardrail body. When the positions of the adjusted first pivot member and second pivot member are stably limited, they will not rotate due to human collision or limit failure, ensuring the safety performance after the installation of the entire bed guardrail and effectively preventing the baby from falling out of the bed; the rotation fixing mechanism in the present invention is composed of a fixing sleeve, a first adjusting structure and a rotating sleeve, which can well meet the locking and unlocking requirements during the angle adjustment process, can quickly achieve unlocking adjustment when the angle adjustment is required, and can immediately return to the position to achieve locking when the angle adjustment is completed, ensuring the use safety of the entire bed guardrail; the angle adjustment of the side guardrail relative to the guardrail body in the present invention is simple, the folding is convenient, and the installation and use have good safety.

[0010] Preferably, the first adjusting structure includes a plurality of first convex teeth or a plurality of first grooves circumferentially provided at the end of the rotating sleeve, and a plurality of second grooves or a plurality of second convex teeth are circumferentially provided at the end of the fixing sleeve, and the second grooves are matched with the first convex teeth or the second convex teeth are matched with the first grooves; a limiting sleeve is provided in the fixing sleeve, and a limiting post is provided in the rotating sleeve, and the limiting post is rotatably disposed in the limiting sleeve.

[0011] The fixing sleeve and the rotating sleeve are respectively disposed on the first pivot member and the second pivot member to realize the relative rotation of the rotating sleeve and the fixing sleeve, so that the side guardrail can be adjusted in angle relative to the guardrail body, and a stable and reliable connection is achieved through mutual cooperation, ensuring that the side guardrail can be stably maintained at the required position when adjusted to the required position. Even if the user accidentally collides with the side guardrail, the rotation fixing mechanism with a limiting function can also ensure that the side guardrail will not rotate or shift; the limiting sleeve provided outside the limiting post provides a physical limit for the relative rotation of the rotating sleeve and the fixing sleeve, ensuring the rotational stability of the rotating sleeve in the fixing sleeve during the rotational adjustment, wherein the rotation range of the side guardrail is 0 to 180 degrees.

[0012] During the rotational adjustment of the side guardrail, the first convex teeth cooperate with the second concave grooves or the second convex teeth cooperate with the first concave grooves. The cooperation of the corresponding convex teeth and concave grooves can achieve multi-stage adjustment and locking of the side guardrail within the range of 0 to 180 degrees, with a large angle adjustment range. After adjustment, the locking is stable, which can effectively prevent the accidental rotation of the side guardrail during use and ensure the reliability and safety of the entire bed guardrail.

[0013] The actual locking angle of the side guardrail can be determined by the number and distribution of the convex teeth and concave grooves. Due to the action of the limit post and the limit sleeve, the rotating sleeve can rotate within the preset range of 0 to 180 degrees. Once the convex teeth are aligned with the corresponding concave grooves, the convex teeth will be embedded in the concave grooves to achieve the locking of the side guardrail at a specific angle.

[0014] Preferably, a pulling spring is sleeved on the limit post. The pulling spring is located within the limit sleeve. One end of the pulling spring is connected to the rotating sleeve or the limit post, and the other end of the pulling spring is connected to the limit sleeve.

[0015] When the user needs to adjust the angle of the side guardrail, a simple pulling action can be used to overcome the elastic force of the pulling spring, causing the rotating sleeve to rotate relative to the fixed sleeve. When rotated to the appropriate angle, the pulling force is released, and the return force of the pulling spring returns to the initial state. At this time, the cooperation mechanism of the corresponding convex teeth and concave grooves will automatically lock the relative position of the rotating sleeve and the fixed sleeve, ensuring that the side guardrail is stably at the adjusted angle.

[0016] Preferably, the first convex teeth or the second convex teeth have a structure with a gradually decreasing width along the end direction; the second concave grooves or the first concave grooves have a structure with a gradually increasing width along the opening direction.

[0017] The convex tooth structure configured with a gradually decreasing width along the opening direction makes it easier for the convex teeth to enter the corresponding concave grooves. When rotated to the locking position, since the end of the convex teeth is narrower, it can be precisely aligned with the concave grooves, thus achieving rapid locking. The concave groove structure configured with a gradually increasing width along the opening direction allows the user to visually see the locking position where the convex teeth are about to reach during the operation process, so as to accurately adjust the angle. When unlocking is required, the convex teeth can be released from the concave grooves through a simple pulling operation.

[0018] Preferably, the fixed sleeve and the first pivot member are of an integral structure; the rotating sleeve and the second pivot member are of an integral structure.

[0019] Setting the fixed sleeve and the first pivot member as an integral structure and setting the rotating sleeve and the second pivot member as an integral structure ensure the structural strength and reduce the risk of mechanical failures.

[0020] Preferably, the guardrail body comprises a first transverse tube, a first vertical tube, a second transverse tube and a second vertical tube, and the first transverse tube, the first vertical tube, the second transverse tube and the second vertical tube are sequentially connected in a closed loop via a first hinge member.

[0021] Furthermore, the first transverse tube, the first vertical tube, the second transverse tube and the second vertical tube are connected to the first hub by a sleeve connection or a structure in which an insert rod and an insert hole match.

[0022] The guardrail body, which is assembled by connecting the corresponding horizontal pipes and vertical pipes in a closed loop through the first hub member, has good stability and protection, and allows disassembly and assembly at different locations for easy transportation and storage.

[0023] Preferably, the side guardrail is a U-shaped swing arm tube structure, and both ends of the U-shaped swing arm tube are provided with a second hinge member.

[0024] Furthermore, the side guardrail and the second hinge member are connected by a sleeve connection or a structure in which an insert rod and a socket cooperate.

[0025] The U-shaped swing arm tube structure adopted by the side guardrail has good mechanical properties and is not easily deformed when subjected to external forces; the second hub parts at both ends ensure a stable connection with the guardrail body.

[0026] Whether the side guardrail and the second hinge member are connected by sleeve connection or the structural connection in which the plug rod and the plug hole cooperate, both stability during use and convenience during assembly can be taken into consideration.

[0027] Preferably, a guardrail base is provided at the bottom of the guardrail body through adjustment of a foot assembly.

[0028] Furthermore, the foot assembly includes a foot body, which is arranged at the bottom of the guardrail body, and a foot connecting part is provided on the foot body, and the extension direction of the foot connecting part is perpendicular to the extension direction of the foot body; a foot groove is provided on the foot connecting part, and the guardrail base is adjusted and arranged in the foot groove through a second adjustment structure.

[0029] Furthermore, the foot base body and the foot base connecting portion are an integrated structure.

[0030] When preparing for installation and use, the guardrail base is stably restricted in the foot seat groove through the second adjustment structure, so that it can be stably installed and used on the baby bed; when not in use, the second adjustment structure is again used to release the restriction of the guardrail base in the foot seat groove, so that the guardrail base can be rotated on the foot seat connecting part, and the guardrail base and the guardrail body can be folded together for easy storage.

[0031] The foot connection part and the foot body are arranged in an integrated structure, which is easy to process and manufacture and also has better strength.

[0032] Preferably, the second adjusting structure includes a shrapnel hole provided on the footrest connecting portion, and the shrapnel hole is in communication with the inside of the footrest groove; a footrest shrapnel is provided inside the guardrail base, and the footrest shrapnel is matched with the shrapnel hole.

[0033] Further, a guiding groove is provided on the footrest connecting portion, and the shrapnel end of the footrest shrapnel is slidably arranged in the guiding groove.

[0034] Further, the footrest shrapnel includes an elastic sheet, the elastic sheet is arranged inside the guardrail base, a locking post is provided on the elastic sheet, and the locking post is matched with the shrapnel hole.

[0035] Furthermore, the guardrail base is of a U-shaped pressed tube structure, an adjusting hole is provided on the guardrail base, a limiting hole is provided on the footrest connecting portion, and the limiting hole is adjustably connected with the adjusting hole through a pin shaft.

[0036] The cooperation between the shrapnel hole and the footrest shrapnel in the second adjusting structure can quickly and accurately realize the unfolding use and folding storage of the guardrail base relative to the guardrail body; when the bed guardrail needs to be installed, the guardrail base and the footrest connecting portion are matched through the footrest groove, so that the guardrail base can smoothly slide into or out of the footrest connecting portion; once the guardrail base is inserted into the appropriate position, the footrest shrapnel (embedded in the guardrail base) will be aligned with the shrapnel hole on the footrest connecting portion, and due to its own elastic characteristics, the elastic pressing piece will be embedded in the shrapnel hole, thereby creating a reliable mechanical lock to prevent the guardrail base from sliding or moving.

[0037] The guiding groove provides an accurate sliding path for the footrest shrapnel, ensuring that the shrapnel end will not shift during the adjustment process; through the cooperation between the locking post on the footrest shrapnel and the shrapnel hole, the locking effect between the guardrail base and the footrest connecting portion is further enhanced, preventing any unnecessary movement or loosening.

[0038] The guardrail base of the U-shaped pressed tube structure helps to increase the overall rigidity and reduce the deformation caused by load changes; through the cooperation of the adjusting hole, the limiting hole and the pin shaft, it is convenient to realize the unfolding use and folding storage of the guardrail base relative to the guardrail body.

[0039] Preferably, a telescopic tube is internally adjusted in the guardrail body, and the guardrail base is connected with the telescopic tube through a footrest assembly.

[0040] Further, a plurality of adjusting insertion holes are axially provided on the telescopic tube, and the guardrail body is adjustably connected with the telescopic tube through a structure in which an adjusting rod is matched with the adjusting insertion holes.

[0041] By setting up telescopic tubes, the bed guardrail can be adjusted in height according to different bed types and usage requirements, allowing users to easily adjust the height of the bed guardrail to adapt to different thickness mattresses, beds, and usage scenarios. For higher beds, the telescopic rods can be extended to increase the height of the bed guardrail; for lower beds, the telescopic rods can be shortened to maintain the applicability of the guardrail.

[0042] The telescopic tubes achieve the convenience of plug-and-play, making the bed guardrail height-adjustable and widely applicable. Without complex tools or professional skills, the height of the guardrail can be quickly adjusted according to the actual situation.

[0043] The utility model has the following beneficial effects:

[0044] (1) By setting up a pivotal component, the side guardrail can be adjusted in angle relative to the guardrail body, enabling the bed guardrail to adapt to different widths of bed types, thus improving the applicability and flexibility.

[0045] (2) The pivotal component consists of a first pivotal member, a second pivotal member, and a rotation fixing mechanism. When the angle adjustment between the first pivotal member and the second pivotal member is completed, the rotation fixing mechanism can provide a mandatory limiting function, allowing users to easily adjust and fix the opening and closing angle between the side guardrail and the guardrail body. When the positions of the adjusted first pivotal member and second pivotal member are stably limited, they will not rotate due to human collision or limit failure, ensuring the safety performance of the entire bed guardrail after installation and effectively preventing the baby from falling out of the bed.

[0046] (3) The rotation fixing mechanism consists of a fixed sleeve, a first adjustment structure, and a rotating sleeve, which can well meet the requirements of locking and unlocking during the angle adjustment process. It can quickly unlock and adjust when angle adjustment is needed, and immediately return to the locked state when the angle adjustment is completed, ensuring the use safety of the entire bed guardrail.

[0047] (4) The angle adjustment of the side guardrail relative to the guardrail body is simple, convenient to fold, and has good safety during installation and use.

[0048] (5) During the rotation adjustment process of the side guardrail, the first convex teeth cooperate with the second grooves or the second convex teeth cooperate with the first grooves. The cooperation of the corresponding convex teeth and grooves can achieve multi-stage adjustment and locking of the side guardrail within the range of 0 to 180 degrees, with a large angle adjustment range. After adjustment, the locking is stable, which can effectively prevent the accidental rotation of the side guardrail during use and ensure the reliability and safety of the entire bed guardrail.

[0049] (6) When the user needs to adjust the angle of the side guardrail, a simple pulling action can be used to overcome the elastic force of the pulling spring, causing the rotating sleeve to rotate relative to the fixed sleeve. When the appropriate angle is reached, the pulling force is released, and the restoring force of the pulling spring returns to its initial state. At this time, the mating mechanism of the corresponding convex teeth and grooves will automatically lock the relative position of the rotating sleeve and the fixed sleeve, ensuring that the side guardrail is stably at the adjusted angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of the structure of the bed guardrail with a folding limit structure provided in one of the embodiments;

[0051] Figure 2 Schematic diagram of the structure of the hub assembly of the bed guardrail with a folding limit structure in the engaged and limited state;

[0052] Figure 3 Schematic diagram of the structure of the hub assembly of the bed guardrail with a folding limit structure in the disengaged and limited state;

[0053] Figure 4 Schematic diagram of the structure of the hub assembly of the bed guardrail with a folding limit structure in the state of rotating and disengaging from the engaged and limited state;

[0054] Figure 5 Internal structure cross-sectional view of the hub assembly;

[0055] Figure 6 Schematic diagram of the structure of the bed guardrail with a folding limit structure provided in another embodiment;

[0056] Figure 7 Schematic diagram of the connection structure between the guardrail base and the positioning foot of the bed guardrail with a folding limit structure;

[0057] Figure 8 For Figure 7 Local structure enlarged view of area A in

[0058] Figure 9 Schematic diagram of the structure of the bed guardrail with a folding limit structure when the footrest spring piece is initially disengaged from the alignment hole;

[0059] Figure 10 For Figure 9 Local structure enlarged view of area B in

[0060] Figure 11 Schematic diagram of the structure of the bed guardrail with a folding limit structure when the footrest spring piece is completely disengaged from the alignment hole

[0061] Figure 12 For Figure 11 Local structure enlarged view of area C in

[0062] Figure 13 Schematic diagram of the structure where the side guardrail of the bed guardrail with a folding limit structure rotates 180 degrees

[0063] Figure 14 Schematic diagram of the structure where both the guardrail base and the side guardrail of the bed guardrail with a folding limit structure are in a folded state

[0064] The markings in the attached drawings are: 100 - guardrail body; 101 - first horizontal pipe; 102 - first vertical pipe; 103 - second horizontal pipe; 104 - second vertical pipe; 105 - telescopic pipe; 200 - pivot assembly; 201 - first pivot member; 202 - second pivot member; 203 - rotation fixing mechanism; 2031 - fixing sleeve; 2032 - first adjustment structure; 2033 - rotation sleeve; 2034 - first convex tooth; 2035 - first groove; 2036 - second groove; 2037 - second convex tooth; 2038 - limit sleeve; 2039 - limit post; 2030 - pulling spring; 300 - side guardrail; 400 - footrest assembly; 401 - footrest body; 402 - footrest connection part; 403 - footrest groove; 404 - second adjustment structure; 4041 - shrapnel hole; 4042 - footrest shrapnel; 4043 - guide groove; 4044 - elastic piece; 4045 - locking post; 500 - guardrail base; 501 - adjustment hole; 502 - limit hole; 503 - pin shaft Detailed implementation manners

[0065] The following further illustrates the present utility model in conjunction with the attached drawings and embodiments, but it shall not be used as a basis for limiting the present utility model

[0066] See Figures 1-3 , a bed guardrail with a folding limit structure, comprising a guardrail body 100. The side part of the guardrail body 100 is provided with a side guardrail 300 through adjustment by a pivot assembly 200, and a guardrail base 500 is provided below it

[0067] The pivot assembly 200 includes a first pivot member 201. The first pivot member 201 is arranged on one side of the guardrail body 100 close to the side guardrail 300. On one side of the side guardrail 300 close to the guardrail body 100, a second pivot member 202 is provided. The second pivot member 202 is adjustably connected to the first pivot member 201 through a rotation fixing mechanism 203

[0068] The rotation fixing mechanism 203 includes a fixing sleeve 2031. The fixing sleeve 2031 is arranged on the first pivot member 201. A rotation sleeve 2033 is provided on the fixing sleeve 2031 through a first adjustment structure 2032. The rotation sleeve 2033 is arranged on the second pivot member 202

[0069] See Figure 4, in one of the embodiments, the first adjustment structure 2032 includes a plurality of first convex teeth 2034 or a plurality of first grooves 2035 circumferentially arranged at the end of the rotating sleeve 2033, and a plurality of second grooves 2036 or a plurality of second convex teeth 2037 are circumferentially arranged at the end of the fixed sleeve 2031. The second groove 2036 cooperates with the first convex tooth 2034 or the second convex tooth 2037 cooperates with the first groove 2035; a limiting sleeve 2038 is arranged in the fixed sleeve 2031, and a limiting post 2039 is arranged in the rotating sleeve 2033. The limiting post 2039 is rotatably arranged in the limiting sleeve 2038.

[0070] Wherein, the fixed sleeve 2031 and the first pivot member 201 are of an integral structure; the rotating sleeve 2033 and the second pivot member 202 are of an integral structure.

[0071] See Figure 5 , in one of the embodiments, a pulling spring 2030 is sleeved on the limiting post 2039. The pulling spring 2030 is located in the limiting sleeve 2038. One end of the pulling spring 2030 is connected to the rotating sleeve 2033 or the limiting post 2039, and the other end of the pulling spring 2030 is connected to the limiting sleeve 2038.

[0072] Wherein, the first convex tooth 2034 or the second convex tooth 2037 has a structure with a gradually decreasing width along the end direction; the second groove 2036 or the first groove 2035 has a structure with a gradually increasing width along the opening direction.

[0073] See Figure 6 , in one of the embodiments, the guardrail body 100 includes a first horizontal pipe 101, a first vertical pipe 102, a second horizontal pipe 103 and a second vertical pipe 104. The first horizontal pipe 101, the first vertical pipe 102, the second horizontal pipe 103 and the second vertical pipe 104 are sequentially and circularly connected through the first pivot member 201.

[0074] For example, the first horizontal pipe 101, the first vertical pipe 102, the second horizontal pipe 103 and the second vertical pipe 104 are connected to the first pivot member 201 by a socket connection or a structure connection where a plug rod cooperates with a socket. The side guardrail 300 is a U-shaped swing arm pipe structure, and the two ends of the U-shaped swing arm pipe are connected to the second pivot member 202. The second pivot member 202 and the side guardrail 300 are connected by a socket connection or a structure connection where a plug rod cooperates with a socket.

[0075] See Figures 7-8, in one of the embodiments, a guardrail base 500 is adjustably provided at the bottom of the guardrail body 100 through a footrest assembly 400; the footrest assembly 400 includes a footrest main body 401, the footrest main body 401 is arranged at the bottom of the guardrail body 100, a footrest connection part 402 is provided on the footrest main body 401, and the extending direction of the footrest connection part 402 is perpendicular to the extending direction of the footrest main body 401; a footrest groove 403 is provided on the footrest connection part 402, and the guardrail base 500 is adjustably arranged in the footrest groove 403 through a second adjusting structure 404.

[0076] Wherein, the footrest main body 401 and the footrest connection part 402 are of an integral structure.

[0077] See Figures 9-12 , in one of the embodiments, the second adjusting structure 404 includes a spring piece hole 4041 provided on the footrest connection part 402, and the spring piece hole 4041 communicates with the inside of the footrest groove 403; a footrest spring piece 4042 is provided in the guardrail base 500, the footrest spring piece 4042 cooperates with the spring piece hole 4041, a guide groove 4043 is provided on the footrest connection part 402, and the spring piece end of the footrest spring piece 4042 is slidably arranged in the guide groove 4043. The footrest spring piece 4042 includes an elastic piece 4044, the elastic piece 4044 is arranged in the guardrail base 500, and a locking column 4045 is provided on the elastic piece 4044, and the locking column 4045 cooperates with the spring piece hole 4041.

[0078] Wherein, the guardrail base 500 is of a U-shaped pressed pipe structure, and an adjusting hole 501 is opened on its surface. A limiting hole 502 is opened on the footrest connection part 402, and the limiting hole 502 is adjustably connected to the adjusting hole 501 through a pin shaft 503.

[0079] , in one of the embodiments, a telescopic pipe 105 is adjustably provided inside the guardrail body 100. The guardrail base 500 is connected to the telescopic pipe 105 through the footrest assembly 400. A plurality of adjusting insertion holes are axially provided on the telescopic pipe 105, and the guardrail body 100 is adjustably connected to the telescopic pipe 105 through a structure in which an adjusting rod cooperates with the adjusting insertion holes.

[0080] The specific working principle of the present utility model:

[0081] In use, the user holds the side guardrail 300 and pulls it upward as a whole, overcoming the elastic force of the drawing spring 2030, so that the first convex tooth 2034 on the rotating sleeve 2033 is disengaged from the second groove 2037 on the fixed sleeve 2031. At this time, the side guardrail 300 can be adjusted in angle relative to the guardrail body 100, and the limiting post 2039 on the rotating sleeve 2033 can rotate within the limiting sleeve 2038 on the fixed sleeve 2031. When the rotating sleeve 2033 rotates relative to the fixed sleeve 2031 to an appropriate angle, the pulling force on the side guardrail 300 is released. Under the return force of the drawing spring 2030, the first convex tooth 2034 on the rotating sleeve 2033 is re-engaged and locked with the second groove 2037 on the fixed sleeve 2031. See Figure 13 。

[0082] Specifically, due to the action of the limiting post 2039 and the limiting sleeve 2038, the rotating sleeve 2033 will rotate within a preset rotation range of 0 to 180 degrees. Once the first convex tooth 2034 is aligned with the corresponding second groove 2037, the first convex tooth 2034 will be inserted into the second groove 2037 to lock the side guardrail 300 at a specific angle. When the user needs to adjust the angle of the side guardrail 300, the resistance of the drawing spring 2030 can be overcome by a simple pulling action to rotate the rotating sleeve 2033 relative to the fixed sleeve 2031. When it rotates to an appropriate angle, the drawing spring 2030 is released to restore it to its initial state. At this time, the matching mechanism of the first convex tooth 2034 and the second groove 2037 will automatically lock the relative positions of the rotating sleeve 2033 and the fixed sleeve 2031 to ensure that the side guardrail 300 is stably maintained at the adjusted angle.

[0083] Through the setting of the footrest assembly 400, the guardrail base 500 is rotationally adjusted and arranged below the guardrail body 100, so that the guardrail base 500 can be folded relative to the guardrail body 100. The guardrail base 500 can be folded to the side of the guardrail body 100 when not in use to reduce space occupation. When the guardrail needs to be installed, the guardrail base 500 can be folded to the horizontal position, and through the cooperation of the second adjustment structure 404 and the footrest connection part 402, the rapid positioning and locking of the guardrail base 500 can be achieved.

[0084] Specifically, when the bed guardrail needs to be installed, the guardrail base 500 and the footrest connecting part 402 can cooperate with each other through the footrest groove 403, enabling the guardrail base 500 to smoothly slide into or out of the footrest connecting part 402; once the guardrail base 500 is inserted into the appropriate position, the footrest spring piece 4042 (embedded in the guardrail base 500) will align with the spring piece hole 4041 on the footrest connecting part 402. At this time, due to its own elastic characteristics, the footrest spring piece 4042 will be embedded in the spring piece hole 4041, thereby creating a reliable mechanical lock to prevent the guardrail base 500 from sliding or moving.

[0085] Since the footrest spring piece 4042 is aligned with the spring piece hole 4041 on the footrest connecting part 402, a mechanical locking structure is provided between the guardrail base 500 and the guardrail body 100. When it is necessary to fold the guardrail base 500, first, the locking post 4045 in the elastic piece 4044 needs to be disengaged from the spring piece hole 4041, and then the guardrail base 500 can be folded by connecting through the pin shaft 503 between the adjustment hole 501 and the limit hole 502. See Figure 14 。

Claims

1. A bed guardrail with a folding limit structure, characterized in that: It includes a guardrail body (100), and a side guardrail (300) is adjustably provided on the side of the guardrail body (100) through a pivot assembly (200); The pivot assembly (200) includes a first pivot member (201), the first pivot member (201) is arranged on one side of the guardrail body (100) close to the side guardrail (300), a second pivot member (202) is provided on one side of the side guardrail (300) close to the guardrail body (100), and the second pivot member (202) is adjustably connected to the first pivot member (201) through a rotation fixing mechanism (203); The rotation fixing mechanism (203) includes a fixing sleeve (2031), the fixing sleeve (2031) is arranged on the first pivot member (201), a rotating sleeve (2033) is provided on the fixing sleeve (2031) through a first adjusting structure (2032), and the rotating sleeve (2033) is arranged on the second pivot member (202); The first adjusting structure (2032) includes a plurality of first convex teeth (2034) or a plurality of first grooves (2035) arranged circumferentially at the end of the rotating sleeve (2033), a plurality of second grooves (2036) or a plurality of second convex teeth (2037) are arranged circumferentially at the end of the fixing sleeve (2031), the second grooves (2036) are matched with the first convex teeth (2034) or the second convex teeth (2037) are matched with the first grooves (2035); a limiting sleeve (2038) is arranged in the fixing sleeve (2031), a limiting post (2039) is arranged in the rotating sleeve (2033), and the limiting post (2039) is rotatably arranged in the limiting sleeve (2038); A pulling spring (2030) is sleeved on the limiting post (2039), the pulling spring (2030) is located in the limiting sleeve (2038), one end of the pulling spring (2030) is connected to the rotating sleeve (2033) or the limiting post (2039), and the other end of the pulling spring (2030) is connected to the limiting sleeve (2038).

2. The bed guardrail with a folding limit structure according to claim 1, characterized in that: The first convex teeth (2034) or the second convex teeth (2037) have a structure with a gradually decreasing width along the end direction; the second grooves (2036) or the first grooves (2035) have a structure with a gradually increasing width along the opening direction; the fixing sleeve (2031) and the first pivot member (201) are of an integral structure; the rotating sleeve (2033) and the second pivot member (202) are of an integral structure.

3. The bed guardrail with a folding limit structure according to claim 1, characterized in that: The guardrail body (100) includes a first horizontal pipe (101), a first vertical pipe (102), a second horizontal pipe (103) and a second vertical pipe (104), and the first horizontal pipe (101), the first vertical pipe (102), the second horizontal pipe (103) and the second vertical pipe (104) are sequentially and circularly connected through the first pivot member (201); the first horizontal pipe (101), the first vertical pipe (102), the second horizontal pipe (103) and the second vertical pipe (104) are connected to the first pivot member (201) through a socketing or a structure connection where a plug rod is matched with a socket.

4. A bed guardrail with a folding limit structure according to claim 1, characterized in that: The side guardrail (300) is of a U-shaped swing arm tube structure, and second pivot members (202) are provided at both ends of the U-shaped swing arm tube; the side guardrail (300) and the second pivot members (202) are structurally connected by means of socketing or the cooperation of a plug rod and a socket.

5. The bed guardrail with a folding limit structure according to claim 1, characterized in that: The bottom of the guardrail body (100) is provided with a guardrail base (500) through adjustment by a footrest assembly (400); the footrest assembly (400) includes a footrest main body (401), the footrest main body (401) is arranged at the bottom of the guardrail body (100), a footrest connection portion (402) is provided on the footrest main body (401), and the extending direction of the footrest connection portion (402) is perpendicular to the extending direction of the footrest main body (401); a footrest groove (403) is provided on the footrest connection portion (402), and the guardrail base (500) is adjustably arranged in the footrest groove (403) through a second adjustment structure (404); the footrest main body (401) and the footrest connection portion (402) are of an integral structure.

6. The bed guardrail with a folding limit structure according to claim 5, characterized in that: The second adjustment structure (404) includes a spring piece hole (4041) provided on the footrest connection portion (402), and the spring piece hole (4041) communicates with the interior of the footrest groove (403); a footrest spring piece (4042) is arranged in the guardrail base (500), and the footrest spring piece (4042) cooperates with the spring piece hole (4041).

7. The bed guardrail with a folding limit structure according to claim 6, characterized in that: A guide groove (4043) is provided on the footrest connection portion (402), and the spring piece end of the footrest spring piece (4042) is slidably arranged in the guide groove (4043); the footrest spring piece (4042) includes a resilient piece (4044), the resilient piece (4044) is arranged in the guardrail base (500), a locking post (4045) is provided on the resilient piece (4044), and the locking post (4045) cooperates with the spring piece hole (4041).

8. A bed guardrail with a folding limit structure according to claim 5, characterized in that: The guardrail base (500) is of a U-shaped pressed tube structure, an adjustment hole (501) is formed in the guardrail base (500), a limiting hole (502) is formed in the footrest connection portion (402), and the limiting hole (502) is adjustably connected to the adjustment hole (501) through a pin shaft (503).

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