Pneumatic rod structure for bedstead capable of storing objects

By adding a fixing mechanism and a support mechanism to the outer wall of the piston rod, the locking failure problem caused by wear in the traditional pneumatic rod structure of storage bed frame is solved, thereby improving the stability and safety of the pneumatic rod, reducing the risk of bed frame collapse, and enhancing the safety of users.

CN223958572UActive Publication Date: 2026-03-03FOSHAN HONGXUAN METAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520815731.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-03
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

Traditional pneumatic rod structures for storage bed frames are prone to wear and fatigue after prolonged use, which can cause the locking function to fail, posing a safety hazard and potentially causing the frame to suddenly fall and injure the user.

Method used

A fixing mechanism is added to the outer wall of the piston rod, including a fixing groove, a fixing block and a slider. The fixing sleeve is connected by a thread to achieve self-locking. Combined with the support mechanism, the connection strength is enhanced, and a redundant locking structure is constructed to ensure the stability and reliability of the pneumatic rod.

Benefits of technology

It effectively reduces the risk of bed frame collapse, improves safety and convenience of use, ensures the stability and reliability of the pneumatic rod structure, and prevents sudden falls in case of accidental failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pneumatic rod structure for a storable bedstead, which comprises a bedstead assembly and a skeleton, a pneumatic rod body comprises a pressure cylinder barrel and a piston rod, the pneumatic rod structure further comprises a support mechanism, a pneumatic rod, a pneumatic rod, a pneumatic rod, a pneumatic rod, a pneumatic rod, a pneumatic rod, a pneumatic rod and a pneumatic rod, the pneumatic rod is arranged on the outer wall of the bottom of the skeleton, and the pneumatic rod is arranged on the pneumatic rod. The fixing mechanism is arranged on the circumferential outer wall of the piston rod, two sets of fixing grooves distributed at equal intervals are formed in the circumferential outer wall of the piston rod, and two first fixing blocks and two second fixing blocks are arranged at the opening end of the pressure cylinder barrel; the outer walls of the opposite sides of the two first fixing blocks are each provided with two sliding grooves. The pneumatic rod structure for the storable bed frame has the effect of improving the stability and the reliability of the pneumatic rod structure.
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Description

Technical Field

[0001] This utility model relates to the field of furniture manufacturing technology, and in particular to a pneumatic rod structure for a storage bed frame. Background Technology

[0002] Storage bed frames are innovative pieces of furniture in modern homes that combine practicality and space optimization. Their design integrates mechanical structure and materials science, with hidden storage space at the bottom of the bed frame. They can be easily opened and closed using gas or hydraulic rods, allowing for the organized storage of clothes, bedding, and other items, effectively freeing up bedroom space. They are especially suitable for small apartments. Structurally, they are made of solid wood or high-strength boards, with a sturdy slatted frame and a widened bed frame to ensure load-bearing capacity and durability.

[0003] However, traditional pneumatic rod structures used for storage bed frames rely solely on internal locking mechanisms. After prolonged use, wear or fatigue can cause the locking function to fail, resulting in the slatted frame suddenly falling and posing a safety hazard of injuring the user.

[0004] For example, in some traditional storage bed frames that have been in use for a long time, the locking components inside the pneumatic rod show wear marks due to frequent extension and retraction. Gaps appear on the originally tightly fitting locking surfaces, and as use continues, wear intensifies, widening the gaps. The friction between the locking components gradually decreases, causing the locking function to eventually fail. When the user normally unfolds or folds the bed frame, the pneumatic rod cannot be effectively fixed in a specific position, and the slatted frame suddenly and rapidly falls under its own weight. At this moment, the user may be organizing items under the bed frame, completely unprepared, and is easily injured by the falling slatted frame, causing bodily injury and seriously affecting the user's safety. Utility Model Content

[0005] This utility model discloses a pneumatic rod structure for a storage bed frame, aiming to solve the technical problems in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pneumatic rod structure for a storage bed frame includes a bed frame assembly, a slatted frame, a pneumatic rod body including a pressure cylinder and a piston rod, and further includes:

[0008] Support mechanism: The support mechanism is disposed on the bottom outer wall of the frame;

[0009] Fixing mechanism: The fixing mechanism is set on the outer circumferential wall of the piston rod. Two sets of equally spaced fixing grooves are opened on the outer circumferential wall of the piston rod. Two first fixing blocks and two second fixing blocks are set at the open end of the pressure cylinder. Two sliding grooves are opened on the outer wall of the opposite side of the two first fixing blocks. A protrusion is set on the outer wall of the opposite side of the two second fixing blocks. A slider is set on the outer wall of both sides of the second fixing blocks. Fixing sleeves are threadedly connected to the outer walls of the first fixing blocks and the second fixing blocks.

[0010] In this case, a fixing mechanism was added to the outer wall of the piston rod, successfully constructing an additional locking structure. This redundant design provides a "double insurance" for the safety performance of the pneumatic rod body. When the locking structure inside the pneumatic rod body fails unexpectedly, it can quickly play a protective role, greatly reducing the risk of bed frame collapse and building an indestructible defense for the user's personal safety. During use, the sliding groove on the first fixing block and the slider of the second fixing block are precisely matched to perfectly align the protrusion on the second fixing block with the fixing groove on the outer wall of the piston rod. Finally, by rotating the fixing sleeve, the two first fixing blocks and the two second fixing blocks are tightly fixed together, achieving a stable self-locking and ensuring the stability and reliability of the entire pneumatic rod structure.

[0011] In a preferred embodiment, the support mechanism includes two first support plates and two second support plates. The two first support plates are respectively disposed on the inner wall of opposite sides of the bed frame assembly, and the two second support plates are disposed on the bottom outer wall of the slatted frame. A first support rod and a second support rod are hinged to one outer wall of one side of the first support plate, and one end of the first support rod and one end of the second support rod are respectively hinged to the outer walls of the two sides of the second support plate.

[0012] Specifically, by setting two first support plates and two second support plates, and using the first and second support rods to form a hinged connection between them, a stable support system is constructed, which effectively enhances the connection strength between the slatted frame and the bed frame components, greatly improves the overall structural stability of the bed frame, reduces swaying and deformation, and the hinged design allows the support rods to rotate flexibly according to actual usage needs. When the bed frame is unfolded or stored, its position can be smoothly adjusted, making it convenient for users to operate and improving the convenience and comfort of use. This provides a solid guarantee for the reliable use of the storage bed frame.

[0013] As described above, a pneumatic rod structure for a storage bed frame includes a bed frame assembly, a slatted frame, and a pneumatic rod body including a pressure cylinder and a piston rod. It also includes: a support mechanism: the support mechanism is disposed on the bottom outer wall of the slatted frame; and a fixing mechanism: the fixing mechanism is disposed on the circumferential outer wall of the piston rod, the circumferential outer wall of the piston rod having two sets of equally spaced fixing grooves. The opening end of the pressure cylinder is provided with two first fixing blocks and two second fixing blocks. Two sliding grooves are provided on the opposite outer wall of each of the two first fixing blocks. A protrusion is provided on the opposite outer wall of each of the two second fixing blocks. A slider is provided on both outer walls of the second fixing blocks. Fixing sleeves are threadedly connected to the outer walls of both the first and second fixing blocks. The pneumatic rod structure for a storage bed frame provided by this utility model has the technical effect of improving the stability and reliability of the pneumatic rod structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a pneumatic rod structure for a storage bed frame proposed in this utility model.

[0015] Figure 2 This is a schematic diagram of a support mechanism for a pneumatic rod structure used in a storage bed frame, as proposed in this utility model.

[0016] Figure 3 This is a partial structural diagram of a pneumatic rod structure for a storage bed frame proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of a fixing mechanism for a pneumatic rod structure used in a storage bed frame, as proposed in this utility model.

[0018] In the attached diagram: 1. Bed frame assembly; 2. Slatted frame; 3. First support plate; 4. Second support plate; 5. First support rod; 6. Second support rod; 7. Pressure cylinder; 8. Piston rod; 9. Fixing sleeve; 10. First fixing block; 11. Fixing groove; 12. Slide groove; 13. Second fixing block; 14. Protrusion; 15. Sliding block. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] The pneumatic rod structure for storage bed frames disclosed in this utility model is mainly applied to traditional pneumatic rod structures for storage bed frames that rely solely on internal locking mechanisms. After prolonged use, the locking function is prone to failure due to wear or fatigue, causing the slat frame to suddenly fall and posing a safety hazard of injuring the user.

[0021] Reference Figure 1 , Figure 3 and Figure 4 A pneumatic rod structure for a storage bed frame includes a bed frame assembly 1, a frame 2, and a pneumatic rod body including a pressure cylinder 7 and a piston rod 8. It also includes: a support mechanism: the support mechanism is disposed on the bottom outer wall of the frame 2; a fixing mechanism: the fixing mechanism is disposed on the circumferential outer wall of the piston rod 8, the circumferential outer wall of the piston rod 8 having two sets of equally spaced fixing grooves 11; the opening end of the pressure cylinder 7 is provided with two first fixing blocks 10 and two second fixing blocks 13; each of the two first fixing blocks 10 has two sliding grooves 12 on its opposite outer wall; each of the two second fixing blocks 13 has a protrusion 14 on its opposite outer wall; each of the two second fixing blocks 13 has a slider 15 on both outer walls; and each of the first fixing blocks 10 and the second fixing blocks 13 has a fixing sleeve 9 threadedly connected to its outer wall.

[0022] The piston end of the piston rod 8 is located on the inner wall of the pressure cylinder 7, and a damping valve is provided on the piston end of the piston rod 8.

[0023] A damping valve (not shown in the figure) is installed at the piston end to control the extension and retraction speed of the piston rod 8 by adjusting the fluid resistance, so as to achieve smooth movement, avoid impact, and also help fix the extension and retraction position, thereby improving the structural safety and reliability.

[0024] In practical applications, a circular arc-bottomed fixing groove 11 is used to avoid stress concentration. A PTFE composite material layer is covered in the groove area, and a double seal is set. The main seal is a stepped plug seal, and the secondary seal is a magnetic fluid ring. Combined with the isolation ring groove filled with a fluororubber buffer layer, the leakage rate is reduced. The groove edge is treated with laser micro-melting to form a hardness gradient. The absence of crack propagation is verified through 500,000 cycle tests to prevent the fixing groove 11 from affecting the sealing performance of the pneumatic rod body.

[0025] In this case, a fixing mechanism was added to the outer wall of the piston rod 8, successfully constructing an additional locking structure. This redundant design provides a "double insurance" for the safety performance of the pneumatic rod body. When the locking structure inside the pneumatic rod body fails unexpectedly, it can quickly play a protective role, greatly reducing the risk of bed frame collapse and building an indestructible defense for the user's personal safety. During use, the sliding groove 12 on the first fixing block 10 and the slider 15 on the second fixing block 13 are precisely matched to perfectly align the protrusion 14 on the second fixing block 13 with the fixing groove 11 on the outer wall of the piston rod 8. Finally, by rotating the fixing sleeve 9, the two first fixing blocks 10 and the two second fixing blocks 13 are tightly fixed together, achieving a stable self-locking and ensuring the stability and reliability of the entire pneumatic rod structure.

[0026] Reference Figure 4 In a preferred embodiment, the slider 15 is slidably disposed on the inner wall of the slide groove 12, and one outer wall of the slider 15 is connected to one inner wall of the slide groove 12 by a spring.

[0027] In the initial state, the spring is in its natural state. At this time, the protrusion 14 on the second fixing block 13 is affected by the spring force and maintains a certain distance from the fixing groove 11 on the outer wall of the piston rod 8, so as not to hinder the normal movement of the piston rod 8. When fixing is required, an external force is applied to move the second fixing block 13, and the protrusion 14 is embedded in the fixing groove 11 to achieve locking. When the fixing is released, the spring force can assist the second fixing block 13 to reset. This design cleverly utilizes the characteristics of the spring, taking into account both the flexible movement and fixing requirements of the piston rod 8, and improving the ease of use and reliability of the pneumatic rod structure.

[0028] Reference Figure 3 and Figure 4 In a preferred embodiment, the height of the first fixing block 10 is greater than the height of the second fixing block 13, and the circumferential diameter of the protrusion 14 is the same as the circumferential diameter of the fixing groove 11. The circumferential diameter of the protrusion 14 and the fixing groove 11 are the same, ensuring that the two are precisely connected and closely matched, thereby improving the stability and reliability of the fixing mechanism and ensuring the safety of the bed frame.

[0029] Reference Figure 1 , Figure 2 and Figure 3In a preferred embodiment, the support mechanism includes two first support plates 3 and two second support plates 4. The two first support plates 3 are respectively disposed on the inner wall of opposite sides of the bed frame assembly 1, and the two second support plates 4 are disposed on the bottom outer wall of the frame 2. A first support rod 5 and a second support rod 6 are hinged to one side of the outer wall of the first support plate 3. One end of the first support rod 5 and one end of the second support rod 6 are respectively hinged to the outer walls of the two sides of the second support plate 4.

[0030] Specifically, by setting two first support plates 3 and two second support plates 4, and using the first support rod 5 and the second support rod 6 to form a hinged connection between them, a stable support system is constructed, which effectively enhances the connection strength between the slatted frame 2 and the bed frame assembly 1, greatly improves the overall structural stability of the bed frame, reduces swaying and deformation, and the hinged design allows the support rods to rotate flexibly according to actual usage needs. When the bed frame is unfolded or stored, the position can be smoothly adjusted, which is convenient for users to operate and improves the convenience and comfort of use, providing a solid guarantee for the reliable use of the storage bed frame.

[0031] Reference Figure 2 In a preferred embodiment, the closed end of the pressure cylinder 7 and the exposed end of the piston rod 8 are respectively hinged to the outer wall of one side of the first support plate 3 and the second support plate 4.

[0032] The closed end of the pressure cylinder 7 is connected to the first support plate 3, and the exposed end of the piston rod 8 is connected to the second support plate 4. The hinge allows the components to rotate flexibly, adapting to the angle changes when the bed frame is unfolded and folded, ensuring the normal extension and retraction of the pneumatic rod, while enhancing the flexibility of the bed frame structure, making the operation more convenient and smooth.

[0033] Working principle: When the bed frame is unfolded or folded, the pneumatic rod body plays a role. The closed end of the pressure cylinder 7 is hinged to the first support plate 3, and the exposed end of the piston rod 8 is hinged to the second support plate 4. As the bed frame moves, the piston rod 8 extends and retracts in the pressure cylinder 7, driving the first support rod 5 and the second support rod 6 to support the frame 2. The extension and retraction position is assisted by the damping valve (not shown in the figure). Then, the user pushes the second fixing block 13, and the protrusion 14 on it is embedded into the fixing groove 11. Then, the fixing sleeve 9 is rotated to fix it, achieving double protection. When the fixation is released, the spring force assists the second fixing block 13 to reset.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A pneumatic rod structure for a storage bed frame, comprising a bed frame assembly (1), a slatted frame (2), and a pneumatic rod body including a pressure cylinder (7) and a piston rod (8), characterized in that, Also includes: Support mechanism: The support mechanism is disposed on the bottom outer wall of the frame (2); Fixing mechanism: The fixing mechanism is set on the outer circumference of the piston rod (8). Two sets of equally spaced fixing grooves (11) are opened on the outer circumference of the piston rod (8). Two first fixing blocks (10) and two second fixing blocks (13) are provided at the open end of the pressure cylinder (7). Two sliding grooves (12) are opened on the outer wall of the opposite side of the two first fixing blocks (10). A protrusion (14) is provided on the outer wall of the opposite side of the two second fixing blocks (13). A slider (15) is provided on the outer wall of both sides of the second fixing block (13). Fixing sleeves (9) are threadedly connected to the outer walls of the first fixing block (10) and the second fixing block (13).

2. The pneumatic rod structure for a storage bed frame according to claim 1, characterized in that, The slider (15) is slidably disposed on the inner wall of the slide groove (12), and one side of the outer wall of the slider (15) is connected to one side of the inner wall of the slide groove (12) by a spring.

3. A pneumatic rod structure for a storage bed frame according to claim 2, characterized in that, The height of the first fixing block (10) is greater than the height of the second fixing block (13), and the circumferential diameter of the protrusion (14) is the same as the circumferential diameter of the fixing groove (11).

4. A pneumatic rod structure for a storage bed frame according to claim 1, characterized in that, The support mechanism includes two first support plates (3) and two second support plates (4). The two first support plates (3) are respectively disposed on the inner wall of opposite sides of the bed frame assembly (1). The two second support plates (4) are respectively disposed on the bottom outer wall of the frame (2). A first support rod (5) and a second support rod (6) are hinged to one side outer wall of the first support plate (3). One end of the first support rod (5) and one end of the second support rod (6) are respectively hinged to the outer walls of the two sides of the second support plate (4).

5. A pneumatic rod structure for a storage bed frame according to claim 4, characterized in that, The closed end of the pressure cylinder (7) and the exposed end of the piston rod (8) are respectively hinged to the outer wall of one side of the first support plate (3) and the second support plate (4).

6. A pneumatic rod structure for a storage bed frame according to claim 5, characterized in that, The length of the first support rod (5) is greater than the length of the second support rod (6).

7. A pneumatic rod structure for a storage bed frame according to claim 1, characterized in that, The piston end of the piston rod (8) is disposed on the inner wall of the pressure cylinder (7), and the piston end of the piston rod (8) is provided with a damping valve.