Height adjustable guard rail and safety bed
By designing a matching limit block and locking mechanism in the guardrail, the risk of existing guardrails falling off without behavioral control is solved, improving the stability and safety of the guardrail, and making it suitable for applications such as safety beds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING HANHAO WOOD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-14
AI Technical Summary
The existing height-adjustable guardrails lack locking mechanisms, which leads to a risk of falling when swaying without full behavioral control, resulting in insufficient safety.
A locking mechanism including first and second limit blocks and a track block is designed. By matching the first and second locking mechanisms with the limit blocks, the limit blocks are always kept in a locked state to prevent the guardrail from falling.
It improves the stability and safety of the guardrail, preventing falls caused by shaking, and is suitable for applications such as safety beds.
Smart Images

Figure CN224483480U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of guardrail structures, specifically relating to a height-adjustable guardrail and safety bed. Background Technology
[0002] Guardrails are primarily used in residences, highways, commercial areas, public places, and safety beds to protect personal safety and equipment. They are ubiquitous in our lives. To ensure safety, guardrails must be positioned above a person's center of gravity. When seated, the height of a person's eyes from the ground is approximately 150mm to 200mm lower than the height of their center of gravity when standing. For example, in the safety bed industry, guardrail height is often adjustable to meet different needs. However, currently available adjustable guardrails lack locking mechanisms, posing a risk of falling under swaying conditions without full behavioral control, making them unsafe and unreliable. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a height-adjustable guardrail and safety bed.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A height-adjustable guardrail includes a first guardrail with first fixed rails at both ends. The upper end of the first guardrail has a first groove containing a first track block. The upper end of the first fixed rail has a first limiting block that matches the first track block. The lower end of the first guardrail has a second groove containing a second track block. The lower end of the first fixed rail has a second limiting block that matches the second track block. The first track block contains a first locking mechanism that matches the first limiting block. The second track block contains a second locking mechanism that matches the second limiting block.
[0006] Furthermore, the upper end of the first track block is provided with a first adjustment groove, and the lower end of the first track block is provided with a first guide groove. The first guide groove matches the first limiting block. The first guide groove extends upward from the lower end of the first track block and is connected to the middle of the first adjustment groove through an arc transition. The first locking mechanism includes a first elastic piece. The first elastic piece is disposed at the upper end of the first track block. The middle part of the first elastic piece is arc-shaped, and the arc direction of the first elastic piece is opposite to that of the first guide groove.
[0007] Furthermore, the lower end of the second track block is provided with a second adjustment groove, and the upper end of the second track block is provided with a second guide groove. The second guide groove matches the second limiting block. The second guide groove extends downward from the upper end of the second track block and is connected to the middle of the second adjustment groove through an arc transition. The second locking mechanism includes a second elastic piece. The second elastic piece is disposed at the lower end of the second track block. The middle part of the second elastic piece is arc-shaped, and the arc direction of the second elastic piece is opposite to that of the second guide groove.
[0008] Furthermore, the first limiting block includes a first bolt, the upper end of the first fixing rail is provided with a first threaded hole, the first bolt matches the first threaded hole, the end of the first bolt near the first guardrail is provided with a first guide post, the first guide post matches the first guide groove, the end of the first guide post near the first guardrail is provided with a first limiting post, the upper end of the first hanging groove is provided with a first inlet, and the first limiting post matches the first inlet.
[0009] Furthermore, the second limiting block includes a second bolt, the lower end of the first fixing rail is provided with a second threaded hole, the second bolt matches the second threaded hole, the end of the second bolt near the first guardrail is provided with a second guide post, the second guide post matches the second guide groove, the end of the second guide post near the first guardrail is provided with a second limiting post, the lower end of the second hanging groove is provided with a second inlet, and the second limiting post matches the second inlet.
[0010] A safety bed, including the aforementioned height-adjustable guardrail.
[0011] The present invention discloses a height-adjustable guardrail and safety bed. Compared with the prior art, its advantages are that, through the cooperation of the first limiting block and the first track block, as well as the cooperation of the second limiting block and the second track block, it can ensure that one of the first limiting block and the second limiting block is always in a locked state, and will not be easily shaken and fall off, thus making it safer and more stable. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure from one perspective of a preferred embodiment of the present invention.
[0013] Figure 2 This is a structural schematic diagram from another perspective of a preferred embodiment of the present invention.
[0014] Figure 3 This is a schematic diagram of the structure of the first guardrail according to a preferred embodiment of the present invention.
[0015] Figure 4This is a schematic diagram of the structure of the first groove in a preferred embodiment of the present invention.
[0016] Figure 5 This is a schematic diagram of the structure of the first track block in a preferred embodiment of the present invention.
[0017] Figure 6 This is a schematic diagram of the structure of the second track block in a preferred embodiment of the present invention.
[0018] Figure 7 This is a schematic diagram of the structure of the first embodiment of the present invention.
[0019] The reference numerals in the attached drawings include: 100, first guardrail; 110, first groove; 120, second groove; 130, first fixed rail; 140, first limiting block; 141, first bolt; 142, first guide post; 143, first limiting post; 150, second limiting block; 200, first track block; 210, first hanging groove; 211, first inlet; 220, first guide groove; 230, first elastic sheet; 300, second track block; 310, second hanging groove; 311, second inlet; 320, second guide groove; 330, second elastic sheet. Detailed Implementation
[0020] This utility model discloses a visual breathing function trainer. The specific implementation of this utility model will be further described below with reference to preferred embodiments.
[0021] See attached diagram. Figure 1-7 , Figure 1 This is a schematic diagram of the structure from one perspective of a preferred embodiment of the present invention. Figure 2 This is a structural schematic diagram from another perspective of a preferred embodiment of the present invention. Figure 3 This is a structural schematic diagram of the first guardrail 100 according to a preferred embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the first groove 110 in a preferred embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the first track block 200 according to a preferred embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of the second track block 300 according to a preferred embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the first embodiment of the present invention.
[0022] Preferred embodiment.
[0023] This embodiment provides a height-adjustable guardrail, including a first guardrail 100. The first guardrail 100 has first fixed rails 130 at both ends. The upper end of the first guardrail 100 has a first groove 110, within which a first track block 200 is provided. The upper end of the first fixed rails 130 has a first limiting block 140, which matches the first track block 200. The lower end of the first guardrail 100 has a second groove 120, within which a second track block 300 is provided. The lower end of the first fixed rails 130 has a second limiting block 150, which matches the second track block 300. The first track block 200 has a first locking mechanism, which matches the first limiting block 140. The second track block 300 has a second locking mechanism, which matches the second limiting block 150.
[0024] Furthermore, the upper end of the first track block 200 is provided with a first adjustment groove, and the lower end of the first track block 200 is provided with a first guide groove 220. The first guide groove 220 matches the first limiting block 140. The first guide groove 220 extends upward from the lower end of the first track block 200 and is connected to the middle of the first adjustment groove through an arc transition. The first locking mechanism includes a first elastic piece 230. The first elastic piece 230 is disposed at the upper end of the first track block 200. The middle part of the first elastic piece 230 is arc-shaped, and the arc direction of the first elastic piece 230 is opposite to that of the first guide groove 220.
[0025] Furthermore, the lower end of the second track block 300 is provided with a second adjustment groove, and the upper end of the second track block 300 is provided with a second guide groove 320. The second guide groove 320 matches the second limiting block 150. The second guide groove 320 extends downward from the upper end of the second track block 300 and is connected to the middle of the second adjustment groove through an arc transition. The second locking mechanism includes a second elastic piece 330. The second elastic piece 330 is disposed at the lower end of the second track block 300. The middle of the second elastic piece 330 is arc-shaped, and the arc direction of the second elastic piece 330 is opposite to that of the second guide groove 320.
[0026] Furthermore, the first limiting block 140 includes a first bolt 141, the upper end of the first fixing rail 130 is provided with a first threaded hole, the first bolt 141 matches the first threaded hole, the end of the first bolt 141 near the first guardrail 100 is provided with a first guide post 142, the first guide post 142 matches the first guide groove 220, the end of the first guide post 142 near the first guardrail 100 is provided with a first limiting post 143, the upper end of the first hanging groove 210 is provided with a first inlet 211, and the first limiting post 143 matches the first inlet 211.
[0027] Furthermore, the second limiting block 150 includes a second bolt, the lower end of the first fixing rail 130 is provided with a second threaded hole, the second bolt matches the second threaded hole, the end of the second bolt near the first guardrail 100 is provided with a second guide post, the second guide post matches the second guide groove 320, the end of the second guide post near the first guardrail 100 is provided with a second limiting post, the lower end of the second hanging groove 310 is provided with a second inlet 311, and the second limiting post matches the second inlet 311.
[0028] Working principle: The first limiting block 140 is fixed to the upper end of the first fixed rail 130 by the cooperation of the first bolt 141 and the first threaded hole, and the second limiting block 150 is fixed to the lower end of the first fixed rail 130 by the cooperation of the second bolt and the second threaded hole. The first limiting post 143 is inserted into the first track block 200 by the clearance of the first inlet 211. The first guide post 142 and the first guide groove 220 guide and limit the movement of the upper end of the first guardrail 100. The second limiting post is inserted into the second track block 300 by the clearance of the second inlet 311. The second guide post and the second guide groove 320 also guide and limit the movement of the lower end of the first guardrail 100. The distance between the first limiting block 140 and the second limiting block 150 is equal to the distance between the top of the first hanging groove 210 and the top of the second guide groove 320. That is, when the first limiting block 140 is in the first hanging groove 210, the second limiting block 150 is located at the top of the second guide groove 320. At this time, the second limiting block 150 cannot be removed, which has a locking effect. Conversely, the first limiting block 140 will be in a locked state. That is, one of the first limiting block 140 and the second limiting block 150 is always in a locked state, thereby ensuring that the first guardrail 100 will not fall off easily.
[0029] It is worth noting that when the first guardrail 100 is raised, the first guardrail 100 is first lifted slightly upwards and pressed inwards, so that the first limiting block 140 squeezes the first elastic sheet 230. The first elastic sheet 230 is compressed under external force, so that the first limiting block 140 moves from the first hanging groove 210 into the first guide groove 220. At this time, the second limiting block 150 moves downwards from the upper end of the second guide groove 320 until it abuts against the second elastic sheet 330. Then, it is pulled upwards with force to compress the second elastic sheet 330, so that the second limiting block 150 enters the second hanging groove 310 from the second guide groove 320. The arc-shaped portion of the first elastic piece 230 and the arc-shaped portion of the first guide groove 220 form an intersecting design, which isolates the first guide groove 220 and the first hanging groove 210. The elasticity of the first elastic piece 230 enables the switching. Similarly, the second elastic piece 330 and the second guide groove 320 also enable the switching of the second guide groove 320 and the second hanging groove 310 through the second elastic piece 330.
[0030] First embodiment.
[0031] A safety bed includes the height-adjustable guardrail described in the preferred embodiment above. The height-adjustable guardrail described in the preferred embodiment is applied to the safety bed for use by individuals with certain behavioral control impairments, ensuring their safety.
[0032] It is worth mentioning that the technical features such as the first groove 110 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the utility model point of this utility model patent. This utility model patent will not be further elaborated in detail.
[0033] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A height-adjustable guardrail, characterized in that, The system includes a first guardrail (100), with first fixed rails (130) at both ends, a first groove (110) at the upper end, a first track block (200) within the groove (110), a first limiting block (140) at the upper end of the fixed rails (130), the first limiting block (140) matching the first track block (200), and a second groove (120) at the lower end of the guardrail (100). The second groove (120) is provided with a second track block (300), and the lower end of the first fixed rail (130) is provided with a second limiting block (150), which matches the second track block (300); the first track block (200) is provided with a first locking mechanism, which matches the first limiting block (140), and the second track block (300) is provided with a second locking mechanism, which matches the second limiting block (150).
2. The height-adjustable guardrail according to claim 1, characterized in that, The first track block (200) has a first hanging groove at its upper end and a first guide groove (220) at its lower end. The first guide groove (220) matches the first limiting block (140). The first guide groove (220) extends upward from the lower end of the first track block (200) and is connected to the middle of the first hanging groove through an arc transition. The first locking mechanism includes a first elastic piece (230). The first elastic piece (230) is disposed at the upper end of the first track block (200). The middle part of the first elastic piece (230) is arc-shaped. The arc direction of the first elastic piece (230) is opposite to that of the first guide groove (220).
3. The height-adjustable guardrail according to claim 2, characterized in that, The second track block (300) has a second hanging groove at its lower end and a second guide groove (320) at its upper end. The second guide groove (320) matches the second limiting block (150). The second guide groove (320) extends downward from the upper end of the second track block (300) and is connected to the middle of the second hanging groove through an arc transition. The second locking mechanism includes a second elastic piece (330). The second elastic piece (330) is disposed at the lower end of the second track block (300). The middle of the second elastic piece (330) is arc-shaped. The arc direction of the second elastic piece (330) is opposite to that of the second guide groove (320).
4. The height-adjustable guardrail according to claim 3, characterized in that, The first limiting block (140) includes a first bolt (141), the upper end of the first fixing rail (130) is provided with a first threaded hole, the first bolt (141) matches the first threaded hole, the end of the first bolt (141) near the first guardrail (100) is provided with a first guide post (142), the first guide post (142) matches the first guide groove (220), the end of the first guide post (142) near the first guardrail (100) is provided with a first limiting post (143), the upper end of the first hanging groove (210) is provided with a first inlet (211), and the first limiting post (143) matches the first inlet (211).
5. The height-adjustable guardrail according to claim 4, characterized in that, The second limiting block (150) includes a second bolt. The lower end of the first fixing rail (130) is provided with a second threaded hole. The second bolt matches the second threaded hole. The end of the second bolt near the first guardrail (100) is provided with a second guide post. The second guide post matches the second guide groove (320). The end of the second guide post near the first guardrail (100) is provided with a second limiting post. The lower end of the second hanging groove (310) is provided with a second inlet (311). The second limiting post matches the second inlet (311).
6. A safety bed, characterized in that, Includes the height-adjustable guardrail as described in any one of claims 1-5.