Pneumatic chain lifting bunk bed

Abstract

This utility model discloses a pneumatic chain lifting bunk bed, which includes a lower bunk and an upper bunk mounted on a support frame; it also includes guide rods and cylinders, the guide rods being mounted on the support frame and vertically distributed; the upper bunk is fitted onto the guide rods; the cylinder has a piston rod capable of vertical linear extension and retraction; the pneumatic chain lifting bunk bed also includes a chain drive mechanism; the chain drive mechanism includes a moving sprocket connected to the piston rod of the cylinder, a fixed sprocket connected to the support frame, and a chain connected to the top of the support frame; the fixed sprocket is located above the moving sprocket, and the chain below the top of the support frame passes through the moving sprocket and the fixed sprocket in sequence before connecting to the upper bunk, with both the moving sprocket and the fixed sprocket meshing with the chain. This utility model greatly improves safety and versatility, saves space, has low structural cost, and simplifies maintenance.

Description

Technical Field

[0001] This utility model relates to a pneumatic chain lifting bunk bed. Background Technology

[0002] Currently, most traditional bunk beds on the market use fixed escalators for access. This design poses certain safety hazards, as the escalators are usually perpendicular to the ground, increasing the risk of slipping for children and the elderly. Traditional bunk beds also have limitations, making it difficult for people with mobility issues to independently move up and down.

[0003] Currently available solutions include stair-style handrails, electric lifting mechanisms, and hydraulic lifting mechanisms. Stair-style handrails take up a lot of space and require multiple steps, resulting in high costs. Electric lifting mechanisms generate significant noise during operation and have high maintenance costs. Hydraulic lifting mechanisms pose a risk of oil leaks, polluting the home environment and are unsuitable for use with bunk beds. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned defects in the existing technology and provide a pneumatic chain lifting upper and lower bunk bed.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A pneumatic chain lifting bunk bed includes a lower bunk and an upper bunk mounted on a support frame; it also includes guide rods and cylinders, the guide rods being mounted on the support frame and vertically distributed; the upper bunk is fitted onto the guide rods; the cylinder has a piston rod capable of vertical linear extension and retraction; the pneumatic chain lifting bunk bed also includes a chain drive mechanism; the chain drive mechanism includes a moving sprocket connected to the piston rod of the cylinder, a fixed sprocket connected to the support frame, and a chain connected to the top of the support frame; the fixed sprocket is located above the moving sprocket, and the chain below the top of the support frame passes through the moving sprocket and the fixed sprocket in sequence before connecting to the upper bunk, with both the moving sprocket and the fixed sprocket meshing with the chain.

[0007] Furthermore, a base is provided at the bottom of the bracket, and the bracket is fixed to the base.

[0008] Furthermore, the cylinder is mounted on the base and is fixedly connected to the base.

[0009] Furthermore, the lower bunk is located above the base; there is storage space between the lower bunk and the base.

[0010] Furthermore, the upper bunk has a guardrail along its edge.

[0011] Furthermore, the support frame is equipped with four guide rods, and the upper bunk is rectangular, with the four guide rods distributed at the four corners of the upper bunk.

[0012] Furthermore, the pneumatic chain lifting upper and lower bunk bed also includes a control component for controlling the cylinder, and the control component is connected to the cylinder.

[0013] Furthermore, the control components are located on the upper bunk.

[0014] Furthermore, the cylinder is connected to an air circuit, which is equipped with a pneumatically controlled check valve that can achieve air pressure self-locking after the upper bunk reaches the target height.

[0015] Furthermore, the guide rod is provided with a positioning hole, and the upper bunk is provided with a pin hole at the corresponding position of the positioning hole; the pneumatic chain lifting upper and lower bunk also includes a pin that can be inserted into both the pin hole and the positioning hole at the same time.

[0016] The beneficial effects of this utility model are as follows: This utility model combines the upper bunk bed with a cylinder chain lifting structure to achieve the lifting of the upper bunk bed; the linear motion of the cylinder piston rod is converted into the vertical displacement of the upper bunk bed by driving the sprocket rotation with pneumatic linear thrust. The cylinder chain lifting structure can control the lifting distance with precision, and combined with pressure adaptive adjustment and pneumatic recovery, it can greatly reduce energy consumption. This utility model adopts a dual-locking safety system, namely a combination of a pneumatic self-locking device and a mechanical pin positioning structure. In this utility model, the cylinder chain lifting structure is installed on one side of the bed, and a guide rod is installed on the other side, reducing space occupation and enhancing the safety and durability of the bed. Compared with traditional bunk beds, the pneumatic chain lifting upper and lower bunk bed of this utility model has greatly improved safety and versatility. The cylinder chain lifting structure saves space, has low structural cost, and is easy to maintain. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0018] Figure 2 This is a side view of a preferred embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the preferred embodiment of the present invention when the upper bunk is raised to its highest height.

[0020] Figure 4 This is a schematic diagram of the preferred embodiment of the present invention when the upper bunk is lowered to its lowest position. Detailed Implementation

[0021] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a pneumatic chain lifting bunk bed includes a lower bunk body 11 and an upper bunk body 12 mounted on a support 10; it also includes guide rods 13 and cylinders 14. The guide rods 13 are mounted on the support 10 and are vertically distributed; the upper bunk body 12 is sleeved on the guide rods 13; the cylinder 14 has a piston rod capable of vertical linear extension and retraction.

[0023] The bracket 10 has a base 15 at its bottom, and the bracket 10 is fixedly connected to the base 15. The cylinder 14 is located on the base 15 and is fixedly connected to the base 15.

[0024] The lower bunk 11 is located above the base 15; there is a storage space 16 between the lower bunk 11 and the base 15. The upper bunk 12 has a bed guard 17 along its edge.

[0025] The support frame 10 is equipped with four guide rods 13. The upper bunk 12 is rectangular, and the four guide rods 13 are distributed at the four corners of the upper bunk 12.

[0026] The pneumatic chain lifting bunk bed also includes a chain drive mechanism that converts the vertical extension and retraction of the piston rod into the vertical movement of the upper bunk body along the guide rod.

[0027] The chain drive mechanism includes a moving sprocket 21 connected to the piston rod of the cylinder, a fixed sprocket 22 connected to the bracket, and a chain 23 connected to the top of the bracket.

[0028] The fixed sprocket 22 is located above the moving sprocket 21, and the chain 23 below the top of the bracket passes through the moving sprocket 21 and the fixed sprocket 22 in sequence before connecting to the upper bunk 12.

[0029] Both the moving sprocket 21 and the fixed sprocket 22 are engaged with the chain 23. Both the moving sprocket and the fixed sprocket have teeth that can engage with the chain.

[0030] The pneumatic chain lifting upper and lower bunk beds also include a control unit for controlling the cylinders, which is connected to the cylinders. The control unit is located on the upper bunk body.

[0031] The cylinder is connected to an air circuit, which is equipped with a pneumatically controlled check valve that can achieve air pressure self-locking after the upper bunk reaches the target height.

[0032] The guide rod has positioning holes, and the upper bunk has corresponding pin holes at the positions of the positioning holes. The pneumatic chain lifting upper and lower bunk bed also includes pins that can be inserted into both the pin holes and the positioning holes simultaneously.

[0033] To clearly show other components, the control unit, pneumatic check valve, positioning hole, pin hole, and pin are not shown in the attached drawings. These components are common and will not be described in detail here.

[0034] A pneumatic chain-driven bunk bed mainly consists of two parts: a cylinder-driven chain lifting structure and a bed frame structure. Its working principle is to use the linear motion of cylinders to drive a chain transmission, achieving vertical lifting of the bed. The bed frame structure includes the main frame and storage space.

[0035] The cylinder-chain lifting structure mainly consists of a cylinder, a chain drive mechanism, and a guide mechanism. The working principle of the cylinder-chain lifting structure is based on the synergistic effect of pneumatic drive and chain transmission. When compressed air is input into the cylinder through the air circuit system, the piston rod of the cylinder performs a linear extension and retraction motion driven by the air pressure difference. The moving sprocket connected to the end of the piston rod rotates accordingly, converting the linear thrust into the rotational power of the moving sprocket through the meshing chain. One end of the chain is fixed to the upper bunk, and the other end of the chain passes around the fixed sprocket to form a closed-loop transmission. As the sprocket rotates, it drives the upper bunk to rise and fall vertically. During the lifting process, the upper bunk is constrained to slide only up and down along the guide rod, ensuring precise movement without sway. After reaching the target height, the pneumatically controlled one-way valve cuts off the air circuit to achieve air pressure self-locking, while a pin is inserted into the positioning hole to form double fixation, preventing accidental falls.

[0036] The preferred design for the pneumatic chain lifting bunk bed is as follows: height 2.3 meters, length 2.6 meters, and width 1.2 meters. This height is the distance from the top of the support frame to the bottom of the base.

[0037] like Figure 3 As shown, when the upper bunk is raised to its highest height, its height H1 above the ground is 1.5 meters, while the lower bunk's height is fixed at 0.42 meters above the ground D. Figure 4 As shown, when the upper bunk is lowered to its lowest position, the height H2 of its surface from the ground is 0.6 meters. At this time, the user can use the base as a foot platform. This design follows the principles of ergonomics and ensures the comfort and convenience of going up and down the bunk through a reasonable height ratio.

[0038] In this invention, the upper bunk bed is combined with a cylinder chain lifting structure to achieve the lifting and lowering of the upper bunk bed. Pneumatic linear thrust drives the sprocket to rotate, converting the linear motion of the cylinder piston rod into the vertical displacement of the upper bunk bed. The cylinder chain lifting structure allows for precise control of the lifting distance and, combined with pressure adaptive adjustment and pneumatic recovery, significantly reduces energy consumption. This invention employs a dual-locking safety system, a combination of a pneumatic self-locking device and a mechanical pin positioning structure. Furthermore, the cylinder chain lifting structure is installed on one side of the bed, while a guide rod is installed on the other side, reducing space occupation and enhancing the bed's safety and durability.

[0039] Compared with traditional bunk beds, the pneumatic chain lifting bunk bed of this invention has greatly improved safety and versatility. The cylinder chain lifting structure saves space, has low structural cost, and is easy to maintain.

[0040] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A pneumatic chain lifting bunk bed, comprising a lower bunk and an upper bunk mounted on a support frame; characterized in that, It also includes guide rods and cylinders. The guide rods are mounted on the support and are distributed vertically. The upper bunk is fitted onto the guide rods. The cylinder has a piston rod capable of vertical linear extension and retraction. The pneumatic chain lifting upper and lower bunk also includes a chain drive mechanism. The chain drive mechanism includes a moving sprocket connected to the piston rod of the cylinder, a fixed sprocket connected to the support, and a chain connected to the top of the support. The fixed sprocket is located above the moving sprocket. The chain below the top of the support passes through the moving sprocket and the fixed sprocket in sequence and is connected to the upper bunk. Both the moving sprocket and the fixed sprocket are engaged with the chain.

2. The pneumatic chain lifting bunk bed as described in claim 1, characterized in that, The bracket has a base at the bottom, and the bracket is fixed to the base.

3. The pneumatic chain lifting upper and lower bunk bed as described in claim 2, characterized in that, The cylinder is mounted on the base and is fixed to the base.

4. The pneumatic chain lifting bunk bed as described in claim 2, characterized in that, The lower bunk is located above the base; there is storage space between the lower bunk and the base.

5. The pneumatic chain lifting upper and lower bunk bed as described in claim 1, characterized in that, The upper bunk has a guardrail along its edge.

6. The pneumatic chain lifting bunk bed as described in claim 1, characterized in that, The support frame has four guide rods, and the upper bunk is rectangular with the four guide rods located at the four corners of the upper bunk.

7. The pneumatic chain lifting upper and lower bunk bed as described in claim 1, characterized in that, The pneumatic chain lifting upper and lower bunk bed also includes a control component for controlling the cylinder, which is connected to the cylinder.

8. The pneumatic chain lifting bunk bed as described in claim 7, characterized in that, The control components are located on the upper bunk.

9. The pneumatic chain lifting upper and lower bunk bed as described in claim 1, characterized in that, The cylinder is connected to an air circuit, which is equipped with a pneumatically controlled check valve that can achieve air pressure self-locking after the upper bunk reaches the target height.

10. The pneumatic chain lifting bunk bed as described in claim 1, characterized in that, The guide rod is provided with a positioning hole, and the upper bunk is provided with a pin hole at the corresponding position of the positioning hole; the pneumatic chain lifting upper and lower bunk also includes a pin that can be inserted into both the pin hole and the positioning hole at the same time.

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