Crib handrail lifting device with good stability

Abstract

The utility model discloses a baby bed handrail lifting device with good stability, which relates to the technical field of baby beds. It comprises a guardrail, a bed plate and a jacking structure. The bed plate comprises an upper layer plate and a lower layer plate, and the jacking structure is arranged between the upper layer plate and the lower layer plate. The guardrail is telescopically inserted into the bed plate and penetrates through the jacking structure, and the positioning and height adjustment of the guardrail are realized through the jacking structure. The utility model has the beneficial effects that the jacking and locking are realized through the mechanical thread cooperation of the "threaded column" and the "bolt". The thread has the self-locking characteristic, that is, under the condition that there is no external rotating force, the bolt will not move or loosen by itself due to vibration or gravity. This is much more reliable than the locking mode that simply depends on the spring, the pin or the friction force, and the risk of accidental falling is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of baby crib technology, specifically to a baby crib armrest lifting device with good stability. Background Technology

[0002] A crib is a bed used for infants and toddlers. Cribs come in various styles, broadly categorized as solid wood cribs, bamboo cribs, rattan cribs, and cribs made from a combination of materials. However, cribs also present some safety hazards that parents should be aware of and address promptly. To prevent infants from falling off the crib's frame, guardrails are typically installed. However, existing crib guardrails are usually either fixed or flip-up. Fixed guardrails can obstruct cleaning, making them less practical. Flip-up guardrails, on the other hand, take up more space and are less adaptable. Summary of the Invention

[0003] The purpose of this utility model is to address the problem of obstruction caused by crib railings in the prior art by providing a crib armrest lifting device with good stability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a stable baby crib armrest lifting device, which includes a guardrail, a bed board and a lifting structure. The bed board includes an upper board and a lower board, and the lifting structure is disposed between the upper board and the lower board. The guardrail is vertically and vertically inserted into the bed board and passes through the lifting structure, thereby realizing the positioning and height adjustment of the guardrail.

[0005] Furthermore, the lifting structure includes a threaded post and a bolt fitted on the threaded post. The bolt can move along the threaded post and abut against the guardrail to limit and fix the guardrail.

[0006] Furthermore, the guardrail includes an upper crossbeam, a lower crossbeam, and a plurality of posts disposed between the two, the posts being arranged at intervals along the length of the crossbeam.

[0007] Furthermore, the bed board includes a top plate, multiple support columns, and a bottom plate. The top plate is connected to the bottom plate through the support columns, and the top plate is provided with multiple through holes for the uprights of the guardrail to pass through.

[0008] The beneficial effects of this utility model after adopting the above technical solution are as follows: Lifting and locking are achieved through the mechanical threaded engagement of a "threaded post" and a "bolt." The thread has a self-locking characteristic, meaning that the bolt will not move or loosen on its own due to vibration or gravity without external rotational force. This is much more reliable than locking methods that rely solely on springs, catches, or friction, eliminating the risk of accidental descent. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the bed board structure in this utility model.

[0012] Figure 3 This is a schematic diagram of the structure of the guardrail in this utility model. Figure 1 .

[0013] Figure 4 This is a schematic diagram of the structure of the guardrail in this utility model. Figure 2 .

[0014] Explanation of reference numerals in the attached diagram: guardrail 1, upper crossbeam 11, lower crossbeam 12, upright 13, bed board 2, upper shelf 21, lower shelf 22, support column 23, lifting structure 3, threaded column 31, bolt 32. Detailed Implementation

[0015] See Figure 1-4 As shown, the working principle of this utility model is as follows: 1. Initial state (guardrail 1 is locked at a certain height) Multiple posts 13 of the guardrail 1 pass through the through holes on the top plate of the bed board 2 from top to bottom and through the lifting structure 3.

[0016] The bolt 32 in the lifting structure 3 has been screwed into the threaded post 31, and its inner end is tightly pressed against the side of the post 13 of the guardrail 1.

[0017] Through the enormous static friction between bolt 32 and post 13, and the radial compressive force of bolt 32 on post 13, guardrail 1 is completely fixed and cannot move up or down.

[0018] 2. When it is necessary to lower or raise guardrail 1 (unlocking process) The operator (usually a parent) locates and holds the control part (such as a handwheel or large wing nut) of bolt 32 on the lifting structure 3.

[0019] Rotate bolt 32 counterclockwise to move it outward (away from guardrail 1) along threaded post 31.

[0020] As the end of bolt 32 gradually moves away from and detaches from guardrail post 13, the squeezing and frictional forces it exerts on post 13 disappear.

[0021] At this point, the limit switch of guardrail 1 is released, and it is in the "unlocked" state. The operator can gently lift or press down the upper beam 11 of guardrail 1 to make all the posts 13 slide up and down synchronously and vertically, freely adjusting to the required height.

[0022] 3. Secure guardrail 1 to the new height (locking process) Once the guardrail 1 has been adjusted to the desired height (e.g., a higher position to prevent the baby from tipping over while standing, or a lower position to make it easier for parents to hold and put down the baby), the operator needs to lock it again.

[0023] Rotate the bolt 32 of the lifting structure 3 clockwise to move it inward (towards the guardrail 1) along the threaded post 31.

[0024] The end of bolt 32 will contact the side of post 13 of guardrail 1 again, and as it continues to be screwed in, it will generate an increasing preload.

[0025] Once bolt 32 is fully tightened, its end will be firmly locked onto column 13. This force occurs simultaneously on all columns 13 that pass through the lifting structure 3, thus firmly fixing the entire guardrail 1 frame into the structure of the bed board 2, making it impossible to move.

[0026] Locking complete, guardrail 1 now has stable support at its new height.

[0027] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A stable baby crib armrest lifting device, characterized in that: It includes a guardrail (1), a bed board (2) and a lifting structure (3). The bed board (2) includes an upper board (21) and a lower board (22). The lifting structure (3) is located between the upper board (21) and the lower board (22). The guardrail (1) is vertically inserted into the bed board (2) and passes through the lifting structure (3). The positioning and height adjustment of the guardrail (1) are achieved through the lifting structure (3).

2. The stable baby crib armrest lifting device according to claim 1, characterized in that: The lifting structure (3) includes a threaded post (31) and a bolt (32) fitted on the threaded post (31). The bolt (32) can move along the threaded post (31) and abut against the guardrail (1) to limit and fix the guardrail (1).

3. The stable baby crib armrest lifting device according to claim 1, characterized in that: The guardrail (1) includes an upper crossbeam (11), a lower crossbeam (12), and a plurality of posts (13) disposed between the two, the posts (13) being arranged at intervals along the length of the crossbeam.

4. The baby crib armrest lifting device with good stability according to claim 1, characterized in that: The bed board (2) includes a top plate, multiple support columns (23) and a bottom plate. The top plate is connected to the bottom plate through the support columns (23). The top plate is provided with multiple through holes for the uprights (13) of the guardrail (1) to pass through.

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