Height-adjustable iron stand bunk bed

By introducing adjustment mechanisms and stabilizing components into the iron-framed bunk bed, the problems of user height and space limitations are solved, enabling flexible adjustment and stability of the bed board height, and improving ease of use and adaptability.

CN223958569UActive Publication Date: 2026-03-03ZHANGZHOU CITY XINBOTE HARDWARES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing iron-framed bunk beds cannot meet the height requirements of different users or the installation limitations of non-standard spaces, making them inconvenient to use.

Method used

A double-decker bed with an iron frame, including an adjustment mechanism and a stabilizing component, was designed. The adjustment mechanism uses a threaded rod, gears, and a transmission rod to adjust the height of the bed board, while the stabilizing component uses a stabilizing square tube and a stabilizing square column to ensure the stability of the bed.

Benefits of technology

The bed height is flexibly adjustable to accommodate different user heights and non-standard spaces, improving ease of use and practicality, and ensuring the stability of the bed during adjustment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223958569U_ABST
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Abstract

The utility model discloses a height-adjustable iron stand bunk bed which comprises a lower bed board, an upper bed board is arranged above the lower bed board, an adjusting mechanism is arranged between the lower bed board and the upper bed board, and the adjusting mechanism comprises a first adjusting piece, a second adjusting piece and a transmission rod. The first adjusting part and the second adjusting part are arranged in the middles of the two sides between the lower bed board and the upper bed board respectively, the transmission rod is arranged between the first adjusting part and the second adjusting part, the first adjusting part and the second adjusting part are the same in internal structure, and the first adjusting part comprises a top box, an adjusting square cylinder and an adjusting column; the top box, the adjusting square cylinder and the adjusting column are sequentially arranged from top to bottom. The height of the double-layer bed with the iron stand can be adjusted, practicability is improved, and therefore the problems that when the double-layer bed with the iron stand is used, the height requirements of different users cannot be met, and installation limitation of a non-standard space cannot be met are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of iron-framed bunk beds, specifically an adjustable-height iron-framed bunk bed. Background Technology

[0002] A bunk bed is a type of double bed supported by an iron frame. It is usually divided into two levels, each with a bed. It is mainly used to save space and is suitable for places where multiple people live, such as dormitories, military camps, and children's rooms. Its structure is sturdy and durable, and it is usually equipped with guardrails and ladders to ensure the safety of the upper bunk. Bunk beds are economical, but they are generally not as comfortable as ordinary beds.

[0003] For example, the authorized patent with announcement number CN218186024U (a double bed with adjustable guardrails) includes a bed frame, a bed board and fixed guardrails. The bed frame is connected to the bed board at both the top and bottom. Fixed guardrails are connected to the left and right sides of the upper bed board. A rotating component that acts as a block is rotatably provided on the front side of each fixed guardrail, and the rotating component can be locked onto the bed board by sliding up and down.

[0004] While the existing technology mentioned above makes it convenient for people to open the guardrail and climb onto the upper bunk, it lacks height adjustment capability. Consequently, when using a metal-framed bunk bed, it cannot accommodate the height needs of different users or the installation limitations of non-standard spaces, making it very inconvenient to use. Therefore, there is an urgent need in the market to develop a metal-framed bunk bed with adjustable height to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable height iron frame bunk bed to solve the problem mentioned in the background art that iron frame bunk beds cannot adapt to the height needs of different users and the installation limitations of non-standard spaces, making them very inconvenient to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-height iron-framed bunk bed, comprising a lower bed board, an upper bed board above the lower bed board, and an adjustment mechanism between the lower and upper bed boards. The adjustment mechanism includes an adjustment component one, an adjustment component two, and a transmission rod. The adjustment component one and adjustment component two are respectively located in the middle of both sides between the lower and upper bed boards. The transmission rod is located between the adjustment component one and adjustment component two. The adjustment component one and adjustment component two have the same internal structure. The adjustment component one includes a top box, an adjustment square tube, and an adjustment column. The top box, adjustment square tube, and adjustment column are arranged sequentially from top to bottom. The upper end of the adjustment column extends into the interior of the adjustment square tube. The interior of the adjustment column is provided with a threaded hole. A threaded rod is threadedly installed inside the threaded hole of the adjustment column. The upper end of the threaded rod extends into the interior of the top box and is fixedly installed with a gear two. Gear one is meshed with the upper side of one side of gear two. One end of the transmission rod extends into the interior of the top box and is fixedly connected to gear one.

[0007] Preferably, the upper end of the top box is fixedly connected to the upper bed board, the lower end of the top box is fixedly connected to the adjusting square tube, and the lower end of the adjusting column is fixedly connected to the lower bed board.

[0008] Preferably, a handwheel is provided on the upper side of one side of the adjusting member, and a connecting shaft is fixedly installed on one side of the handwheel. One end of the connecting shaft extends into the interior of the top box and is fixedly connected to the gear.

[0009] Preferably, stabilizing components are provided at the four corners below the upper bed board. The stabilizing components include stabilizing square tubes and stabilizing square columns. The upper end of the stabilizing square tube is fixedly connected to the upper bed board, and the lower end of the stabilizing square column is fixedly connected to the lower bed board. The upper end of the stabilizing square column extends into the interior of the stabilizing square tube.

[0010] Preferably, the interior of the stabilizing square column has multiple positioning holes arranged vertically. A side box is fixedly installed on one side of the stabilizing square tube. A disc is provided on one side of the side box. A positioning rod is fixedly installed on the side of the disc facing the side box. One end of the positioning rod slides through the side box and extends into the interior of the stabilizing square tube, and the positioning rod is inserted into the interior of the positioning hole.

[0011] Preferably, a compression spring is fixedly installed inside the side box along the outer side of the positioning rod, and a ring plate is fixedly installed on the outer side of the positioning rod along one side of the compression spring. The outer side of the ring plate is provided with external threads, and a threaded cylinder is fixedly installed inside the side box along the outer side of the compression spring. The inner side of the threaded cylinder is provided with internal threads.

[0012] Preferably, support legs are fixedly installed at the four corners below the lower bed board, a guardrail is fixedly installed above the upper bed board, and a ladder is fixedly installed at the front end of the upper bed board.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By setting an adjustment mechanism, the height between the upper bed board and the lower bed board can be flexibly adjusted to meet the height requirements of different users. At the same time, the bunk bed can adapt to the installation restrictions of non-standard spaces, make full use of vertical space, and avoid installation difficulties caused by inconsistent floor heights or special spaces. This not only improves the convenience of use, but also enhances the practicality and adaptability of the iron frame bunk bed, and meets diverse usage needs.

[0015] (2) By setting a stabilizing component, which includes a stabilizing square tube and a stabilizing square column, this utility model ensures the stability of the bed during the adjustment process, effectively preventing the bed from shaking or tilting during the adjustment process. The cooperation between the positioning rod and the positioning hole ensures that the bed can be firmly fixed after the adjustment is in place, thus increasing its practicality.

[0016] (3) By setting a handwheel, and the handwheel being fixedly connected to a gear via a connecting shaft, the height of the bed can be adjusted by rotating the handwheel. Users can easily adjust the height of the bed without the aid of tools, thus improving the convenience of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an adjustable-height iron-framed bunk bed according to the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom view of an adjustable-height iron frame bunk bed according to the present invention;

[0019] Figure 3 This is a cross-sectional view of the adjusting component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the stabilizing component of this utility model;

[0021] Figure 5 This is a right-side sectional view of the positioning rod of this utility model.

[0022] In the diagram: 1. Lower bed board; 2. Support leg; 3. Upper bed board; 4. Guardrail; 5. Ladder; 6. Stabilizing component; 601. Stabilizing square tube; 602. Stabilizing square column; 6021. Positioning hole; 7. Adjusting mechanism; 701. Adjusting component one; 7011. Top box; 7012. Adjusting square tube; 7013. Adjusting column; 702. Adjusting component two; 703. Transmission rod; 8. Gear one; 9. Gear two; 10. Threaded rod; 11. Connecting shaft; 12. Handwheel; 13. Side box; 14. Positioning rod; 15. Disc; 16. Ring plate; 17. Compression spring; 18. Threaded cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5 This utility model provides an embodiment of an adjustable-height iron-framed bunk bed, comprising a lower bed board 1, an upper bed board 3 above the lower bed board 1, and an adjustment mechanism 7 between the lower bed board 1 and the upper bed board 3. The adjustment mechanism 7 includes an adjustment component 701, an adjustment component 702, and a transmission rod 703. The adjustment component 701 and the adjustment component 702 are respectively located in the middle of both sides between the lower bed board 1 and the upper bed board 3. The transmission rod 703 is located between the adjustment component 701 and the adjustment component 702. The adjustment component 701 and the adjustment component 702 have the same internal structure. The adjustment component 701 includes a top box 7011, an adjustment square tube 7012, and an adjustment column 701. 3. The top box 7011, the adjusting square tube 7012, and the adjusting column 7013 are arranged sequentially from top to bottom. The upper end of the adjusting column 7013 extends into the interior of the adjusting square tube 7012. The interior of the adjusting column 7013 is provided with a threaded hole. A threaded rod 10 is threadedly installed inside the threaded hole of the adjusting column 7013. The upper end of the threaded rod 10 extends into the interior of the top box 7011 and is fixedly installed with a gear 9. The threaded rod 10 is rotatably connected to the top box 7011 through a bearing. A gear 8 is meshed on the upper side of one side of the gear 9. One end of the transmission rod 703 extends into the interior of the top box 7011 and is fixedly connected with the gear 8. The transmission rod 703 is rotatably connected to the top box 7011 through a bearing.

[0025] The adjustment mechanism 7 includes adjustment component 1 701 and adjustment component 2 702. Through the transmission and cooperation of threaded rod 10, gear 1 8 and gear 2 9, the height between the upper bed board 3 and the lower bed board 1 can be flexibly adjusted to meet the height needs of different users and improve the convenience of use. At the same time, it also enables the bunk bed to adapt to the installation restrictions of non-standard spaces, make full use of vertical space, and avoid installation difficulties caused by inconsistent floor heights or special spaces. In addition, the threaded cooperation design between the adjustment column 7013 and the threaded rod 10 ensures the stability and reliability of the adjustment process.

[0026] Please see Figure 2 and Figure 3 The upper end of the top box 7011 is fixedly connected to the upper bed board 3, the lower end of the top box 7011 is fixedly connected to the adjusting square tube 7012, and the lower end of the adjusting column 7013 is fixedly connected to the lower bed board 1.

[0027] The coordinated design of the adjusting column 7013 and the adjusting square tube 7012 makes height adjustment smoother, and the modular design makes assembly and disassembly more convenient, increasing practicality.

[0028] Please see Figure 3 A handwheel 12 is provided on the upper side of one side of the adjusting component 701. A connecting shaft 11 is fixedly installed on one side of the handwheel 12. One end of the connecting shaft 11 extends into the interior of the top box 7011 and is fixedly connected to the gear 8.

[0029] The handwheel 12 is fixedly connected to the gear 8 via the connecting shaft 11, allowing the bed height to be adjusted by rotating the handwheel 12. Users can easily adjust the bed height without the need for tools, thus improving the convenience of use.

[0030] Please see Figure 2 and Figure 4 Stabilizing components 6 are provided at the four corners below the upper bed board 3. The stabilizing components 6 include stabilizing square tubes 601 and stabilizing square columns 602. The upper end of the stabilizing square tube 601 is fixedly connected to the upper bed board 3, and the lower end of the stabilizing square column 602 is fixedly connected to the lower bed board 1. The upper end of the stabilizing square column 602 extends into the interior of the stabilizing square tube 601.

[0031] The stabilizing square tube 601 and stabilizing square column 602 can guide the height adjustment of the iron frame bunk bed, preventing the bed from shaking or tilting during the adjustment process, thus increasing its practicality.

[0032] Please see Figure 4 and Figure 5The interior of the stabilizing square column 602 has multiple vertically arranged positioning holes 6021. A side box 13 is fixedly installed on one side of the stabilizing square tube 601. A disc 15 is provided on one side of the side box 13. A positioning rod 14 is fixedly installed on the side of the disc 15 facing the side box 13. One end of the positioning rod 14 slides through the side box 13 and extends into the interior of the stabilizing square tube 601. The positioning rod 14 is inserted into the interior of the positioning hole 6021. A compression spring 17 is fixedly installed inside the side box 13 along the outside of the positioning rod 14. A ring plate 16 is fixedly installed on the outside of the positioning rod 14 along one side of the compression spring 17. The outer side of the ring plate 16 is provided with external threads. A threaded cylinder 18 is fixedly installed inside the side box 13 along the outside of the compression spring 17. The inner side of the threaded cylinder 18 is provided with internal threads.

[0033] When adjusting the height of the double-decker bed, the positioning rod 14 is pulled out of the positioning hole 6021 by the disc 15. At this time, the ring plate 16 will press the compression spring 17 to compress until the ring plate 16 contacts the threaded cylinder 18. At this time, the positioning rod 14 is completely disengaged from the positioning hole 6021. Then, the disc 15 is held and the positioning rod 14 is rotated so that the ring plate 16 is screwed into the threaded cylinder 18. This prevents the positioning rod 14 from moving under the elastic tension of the compression spring 17 after the disc 15 is released, which is beneficial to the stable adjustment of the double-decker bed.

[0034] Please see Figure 1 Support legs 2 are fixedly installed at the four corners below the lower bed board 1, guardrails 4 are fixedly installed on the top of the upper bed board 3, and ladders 5 are fixedly installed at the front end of the upper bed board 3.

[0035] The support legs 2 ensure the stability of the bed during use, enabling it to withstand greater weight and improving safety. The guardrails 4 effectively prevent users from falling from the upper bed board, and the ladder 5 makes getting in and out of the bed more convenient, increasing its practicality.

[0036] Working principle: During use, the height between the upper bed board 3 and the lower bed board 1 is flexibly adjusted through the adjustment mechanism 7. When the user turns the handwheel 12, the connecting shaft 11 drives the gear 8 to rotate, which in turn drives the threaded rod 10 to rotate. This causes the adjusting column 7013 to move up and down within the adjusting square tube 7012. Through the transmission rod 703, the adjusting component 702 and the adjusting component 701 operate synchronously, thereby adjusting the height of the upper bed board 3 to accommodate different user height requirements and non-standard space installation limitations. The stabilizing component 6 is also connected. The cooperation of the stabilizing square tube 601 and the stabilizing square column 602 ensures the stability of the bed during adjustment. Simultaneously, during height adjustment, the positioning rod 14 is pulled out of the positioning hole 6021 via the disc 15. The ring plate 16 presses the compression spring 17 until the ring plate 16 contacts the threaded cylinder 18, completely disengaging the positioning rod 14 from the positioning hole 6021. Then, by holding the disc 15 and rotating the positioning rod 14, the ring plate 16 is screwed into the threaded cylinder 18, ensuring stable adjustment of the iron frame bunk bed. This achieves stable height adjustment, meeting the height requirements and space constraints of different users, and increasing practicality.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable height iron frame bunk bed comprising a lower bed plate (1), characterized in that: The upper part of the lower bed plate (1) is provided with an upper bed plate (3), and an adjusting mechanism (7) is arranged between the lower bed plate (1) and the upper bed plate (3). The adjusting mechanism (7) comprises adjusting part one (701), adjusting part two (702) and transmission rod (703). The adjusting part one (701) and the adjusting part two (702) are arranged in the middle of the two sides between the lower bed plate (1) and the upper bed plate (3) respectively. The transmission rod (703) is arranged between the adjusting part one (701) and the adjusting part two (702). The internal structure of the adjusting part one (701) and the adjusting part two (702) is the same. The adjusting part one (701) comprises a top box (7011), an adjusting square cylinder (7012) and an adjusting column (7013), which are arranged in sequence from top to bottom. The upper end of the adjusting column (7013) extends into the inside of the adjusting square cylinder (7012). The inside of the adjusting column (7013) is provided with a threaded hole. The threaded hole of the adjusting column (7013) is internally threadedly mounted with a threaded rod (10). The upper end of the threaded rod (10) extends into the inside of the top box (7011) and is fixedly mounted with a gear two (9). The gear one (8) is engagedly mounted on the upper side of one side of the gear two (9). One end of the transmission rod (703) extends into the inside of the top box (7011) and is fixedly connected with the gear one (8).

2. The height-adjustable iron frame bunk as claimed in claim 1, wherein: The upper end of the top box (7011) is fixedly connected with the upper bed plate (3). The lower end of the top box (7011) is fixedly connected with the adjusting square cylinder (7012). The lower end of the adjusting column (7013) is fixedly connected with the lower bed plate (1).

3. The height-adjustable iron frame bunk as claimed in claim 2, characterized in that: The upper side of one side of the adjusting part one (701) is provided with a hand wheel (12). One side of the hand wheel (12) is fixedly mounted with a connecting shaft (11). One end of the connecting shaft (11) extends into the inside of the top box (7011) and is fixedly connected with the gear one (8).

4. The height-adjustable iron frame bunk as claimed in claim 1, wherein: Four corners below the upper bed plate (3) are provided with stable assemblies (6). The stable assemblies (6) comprise stable square cylinders (601) and stable square columns (602). The upper end of the stable square cylinder (601) is fixedly connected with the upper bed plate (3). The lower end of the stable square column (602) is fixedly connected with the lower bed plate (1). The upper end of the stable square column (602) extends into the inside of the stable square cylinder (601).

5. The height-adjustable iron frame bunk as claimed in claim 4, wherein: Multiple positioning holes (6021) are vertically arranged in the inside of the stable square column (602). One side of the stable square cylinder (601) is fixedly mounted with a side box (13). One side of the side box (13) is provided with a disc (15). The disc (15) is fixedly mounted with a positioning rod (14) on the side facing the side box (13). One end of the positioning rod (14) slidably penetrates the side box (13) and extends into the inside of the stable square cylinder (601). The positioning rod (14) is inserted into the inside of the positioning hole (6021).

6. The height-adjustable iron frame bunk as claimed in claim 5, wherein: The inside of the side box (13) is fixedly installed with a compression spring (17) along the outside of a positioning rod (14), the outside of the positioning rod (14) is fixedly installed with a ring plate (16) along one side of the compression spring (17), the outer side surface of the ring plate (16) is provided with external threads, the inside of the side box (13) is fixedly installed with a threaded cylinder (18) along the outside of the compression spring (17), and the inside of the threaded cylinder (18) is provided with internal threads.

7. The height-adjustable iron-framed bunk bed according to claim 1, wherein: Four supporting legs (2) are fixedly installed at the four corners below the lower bed plate (1), a guardrail (4) is fixedly installed above the upper bed plate (3), and a ladder (5) is fixedly installed at the front end of the upper bed plate (3).

Citation Information

Patent Citations

  • Bunk bed with adjustable guardrails

    CN218186024U