Support device for a bedstead and bedstead

Abstract

The present disclosure provides a bedstead and a support device for the bedstead. The support device comprises a first fixing member, a second fixing member, a damper and a positioning member. The first fixing member and the second fixing member are respectively configured to be fixedly connected with a support plate of the bedstead and a bedstead body. The damper comprises a pressure cylinder and a piston rod, and the first end of the pressure cylinder, from which the piston rod extends out, is provided with a positioning end face. As the support plate is lifted relative to the bedstead body, the first fixing member moves relative to the second fixing member, so that the piston rod moves relative to the pressure cylinder from a retracted position to an extended position. The positioning member, by detachably abutting against the positioning end face, limits the piston rod from moving relative to the pressure cylinder from the extended position to the retracted position. According to the above configuration, when the support plate is lifted relative to the bedstead body, the positioning member, by detachably abutting against the positioning end face, further limits the piston rod from moving relative to the pressure cylinder from the extended position to the retracted position, thereby ensuring that the support plate has stable support in the lifted state.

Description

Technical Field

[0001] This disclosure relates to the field of hydraulic beds, and more specifically to a support device for a bed frame and a bed frame having the support device. Background Technology

[0002] Hydraulic beds typically use a hydraulic system (such as hydraulic rods or gas springs) to raise or lower the bed frame support panels, facilitating users' access to under-bed storage space. However, in actual use, when a user lifts the bed frame support panels to retrieve or place items, the hydraulic system may suddenly fail due to aging or external impact, leading to a loss of hydraulic support and causing the bed frame support panels to suddenly fall, posing a safety hazard to the user.

[0003] To address this issue, existing technologies typically employ hydraulic rods with safety limits to provide stable support for hydraulic presses, but these are costly. Alternatively, auxiliary support rods can be used, but these are often simple structures made of wire or metal rods, requiring manual operation by the user, and their stability and safety are difficult to guarantee, failing to provide reliable protection in emergencies. Summary of the Invention

[0004] In view of this, the present disclosure provides a support device for a bed frame to at least solve or improve the problem of hydraulic beds lacking stable and reliable support and protection in the event of hydraulic system failure.

[0005] On one hand, this disclosure provides a support device for a bed frame. The support device includes a first fixing member, a second fixing member, a damper, and a positioning member. The first fixing member is configured to be fixedly connected to a support plate of the bed frame. The second fixing member is configured to be fixedly connected to the bed frame body. The damper includes a pressure cylinder and a piston rod. A positioning end face is provided at the first end of the pressure cylinder where the piston rod extends. As the support plate is lifted relative to the bed frame body, the first fixing member moves relative to the second fixing member, causing the piston rod to move from a retracted position to an extended position relative to the pressure cylinder. The positioning member, by separably abutting against the positioning end face, restricts the piston rod from moving from the extended position to the retracted position relative to the pressure cylinder.

[0006] According to the support device provided in this disclosure, the stable support and reliable positioning of the bed frame support plate are improved through the cooperation of the damper and the positioning member. When the support plate is lifted, it drives the first fixing member to move, causing the piston rod to move from the retracted position to the extended position. By providing a positioning end face at the first end of the piston rod extending from the pressure cylinder, which can be separably abutted against the positioning member, when the piston rod is fully extended, the positioning member and the positioning end face engage with each other, which can further restrict the piston rod from moving from the extended position to the retracted position relative to the pressure cylinder, thereby ensuring that the support plate has stable support in the lifted state.

[0007] Alternatively or supplementally, the first fixing member is provided with a pivot portion, and both the piston rod and the positioning member are pivotally connected to the first fixing member through the pivot portion.

[0008] The piston rod and the positioning component are pivotally connected to the first fixed component via the same pivot point. This reduces the number of connecting parts, simplifies the assembly process, and lowers manufacturing costs. It also allows for a more compact overall structure.

[0009] Alternatively or supplementally, one end of the positioning member is pivotally connected to the first fixing member via a pivot portion, and the other end opposite to the second end is provided with an abutting end that can be separated from and abut against the positioning end face.

[0010] Alternatively or supplementarily, one end of the positioning member is provided with an elongated hole, and the pivot portion is a pivot shaft passing through the elongated hole. When the piston rod is in the extended position and the pivot shaft is located at the end of the elongated hole away from the pressure cylinder, the abutting end is located between the first and second ends of the pressure cylinder. When the piston rod is in the extended position and the pivot shaft is located at the other end of the elongated hole, the abutting end is located on the side of the positioning end face facing away from the second end of the pressure cylinder.

[0011] According to the above structure, the elongated hole at one end of the positioning member engages with the pivot shaft, allowing for two states—locked and unlocked—to be achieved through different positions of the pivot shaft within the elongated hole. When the piston rod is in the extended position and the pivot shaft is located at the end of the elongated hole furthest from the pressure cylinder, the abutting end is positioned between the first and second ends of the pressure cylinder. In this case, the positioning member does not abut against the positioning end face, thus not restricting the piston rod from moving from the extended position to the retracted position relative to the pressure cylinder, which is suitable for temporarily lifting the support plate of the bed frame. When the piston rod is in the extended position and the pivot shaft is located at the other end of the elongated hole, the abutting end is located on the side of the positioning end face facing away from the second end of the pressure cylinder. In this case, the positioning member can abut against the positioning end face, achieving complete locking and thus restricting the piston rod from moving from the extended position to the retracted position relative to the pressure cylinder.

[0012] Alternatively or supplementally, the positioning member also has two side plates located on opposite sides of the abutment end, and the distance between the two side plates is greater than or equal to the diameter of the pressure cylinder.

[0013] According to the above structure, by providing two side plates on opposite sides of the abutment end face, with the distance between the two side plates being greater than or equal to the diameter of the pressure cylinder, the movement trajectory of the positioning component is accurately guided and limited. The two side plates ensure that the positioning component maintains a predetermined trajectory during movement, preventing deflection. Furthermore, the two side plates also give the positioning component better structural strength.

[0014] Alternatively or supplementally, each side plate portion is provided with a lug that protrudes beyond the abutting end.

[0015] By providing lugs that protrude beyond the abutment end face on each side plate, the structural strength and bending resistance of the positioning component can be further improved. Furthermore, the lugs on both side plates increase the contact area between the positioning component and the pressure cylinder, providing a more stable movement trajectory for the positioning component and further enhancing its guiding function.

[0016] Alternatively or supplementally, the positioning element includes a body portion and a grip portion, the grip portion and the body portion enclosing each other to form a grip hollow portion, the grip hollow portion having a first inner arcuate edge defined by the grip portion and a second inner arcuate edge defined by the body portion, and the grip portion having an outer arcuate edge.

[0017] The positioning component with the above-described structure, through the double-arc grip hollow portion formed by the first and second inner arcuate edges, combined with the outer arcuate edge, not only improves user operating comfort and ease of use, but also enhances grip stability. Furthermore, the arcuate edges effectively disperse grip pressure, resulting in a more even force distribution.

[0018] Alternatively or supplementally, the support device further includes a first connector and a second connector. The first connector has its two ends pivotally connected to a first fixing member and a second fixing member, respectively. The second connector has its two ends pivotally connected to the ends of the first fixing member and the second fixing member, respectively, wherein the portions of the first connector, the second connector, and the first fixing member located between the first and second connectors, and the portion of the second fixing member located between the first and second connectors, form a quadrilateral.

[0019] By incorporating a first connecting member and a second connecting member between the first and second fixing members, a four-bar linkage mechanism can be formed. This ensures even force transmission during the lifting of the support plate, preventing localized stress concentration. Simultaneously, it ensures the support plate remains stable and does not wobble during lifting or lowering, improving the safety of the bed frame.

[0020] Alternatively or supplementally, the first fastener has an L-shaped cross-section, and / or the second fastener includes a first bent boss and a second bent boss, and the first connector and the second connector are connected to the second fastener through the first bent boss and the second bent boss, respectively.

[0021] The L-shaped cross-section of the first fastener not only provides a stable connection with the bed frame's support plate but also offers good structural strength and torsional resistance. The second fastener, with its first and second bending bosses, accommodates the assembly of the first and second connectors, ensuring that they maintain a parallel planar movement with the entire system during operation. Furthermore, the boss structure disperses stress, preventing stress concentration.

[0022] On the other hand, this disclosure provides a bed frame that includes the support device described above. Attached Figure Description

[0023] It should be understood that the following figures only illustrate certain embodiments of this disclosure and should not be construed as limiting the scope.

[0024] It should be understood that the same or similar reference numerals are used in the accompanying drawings to denote the same or similar elements.

[0025] It should be understood that the accompanying drawings are only schematic, and the dimensions and scales of the elements in the drawings are not necessarily precise.

[0026] Figure 1 This is a schematic diagram of the support device structure according to an embodiment of the present disclosure.

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of the first fixing component.

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of the second fixing component.

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the first connecting component.

[0030] Figure 5 for Figure 1 A schematic diagram of the intermediate damper, in which the piston rod is in the extended position.

[0031] Figure 6 for Figure 1 A schematic diagram of the center positioning component.

[0032] Figure 7 for Figure 1 A schematic diagram of the structure where the positioning component is not against the positioning end face.

[0033] Figure 8 for Figure 1 A schematic diagram of the structure of the positioning component abutting against the positioning end face. Detailed Implementation

[0034] Numerous specific details are set forth below to provide an understanding of the structure, function, and use of the embodiments described and illustrated in the specification and figures. It is to be understood that the embodiments described and illustrated herein are non-limiting examples, and thus it will be appreciated that the particular structural and functional details disclosed herein are representative and exemplary. Variations and changes may be made to these embodiments without departing from the scope of the claims.

[0035] <Exemplary Support Device>

[0036] A support device 100 for a bed frame according to an embodiment of the present disclosure is provided. Figure 1 The following is an example of the overall structure of the support device 100. It should be noted that the structure of the support device 100 is not limited to the description below. For example, one or more elements mentioned below may be omitted or replaced, and their layout relationships may be altered.

[0037] refer to Figures 1 to 3 The support device 100 includes a first fixing member 10, a second fixing member 20, a damper 30, and a positioning member 40. The first fixing member 10 has an elongated hole 13 for fixed connection with the support plate of the bed frame. The second fixing member 20 has an elongated hole 24 for fixed connection with the bed frame body. Figure 5 The damper 30 includes a pressure cylinder 31 and a piston rod 32. The first end of the pressure cylinder 31 from which the piston rod 32 extends is provided with a positioning end face 33. As the support plate is lifted relative to the bed frame body, the first fixing member 10 moves relative to the second fixing member 20, causing the piston rod 32 to move from a retracted position to an extended position relative to the pressure cylinder 31. The positioning member 40 restricts the piston rod 32 from moving from the extended position to the retracted position relative to the pressure cylinder 31 by abutting separably against the positioning end face 33.

[0038] According to the support device 100 provided in this disclosure, the damper 30 and the positioning member 40 cooperate to improve the stable support and reliable positioning of the bed frame support plate. When the support plate is lifted, it drives the first fixing member 10 to move, causing the piston rod 32 to move from the retracted position to the extended position. By providing a positioning end face 33 at the first end of the pressure cylinder 31 where the piston rod 32 extends, and by being separably abutting against the positioning member 40, when the piston rod 32 is fully extended, the positioning member 40 and the positioning end face 33 engage with each other, which can further restrict the piston rod 32 from moving from the extended position to the retracted position relative to the pressure cylinder 31, thereby ensuring that the support plate has stable support in the lifted state.

[0039] In addition, the elongated holes 13 and 24 provided in the first fixing member 10 and the second fixing member 20 can compensate for processing errors and assembly deviations, allowing the first fixing member 10 and the support plate, and the second fixing member 20 and the bed frame body to have a certain positional tolerance when fixed.

[0040] refer to Figure 1 and Figure 4The support device 100 further includes a first connecting member 50 and a second connecting member 60. The first connecting member 50 has circular holes 52 at both ends for pivotal connection with the first fixing member 10 and the second fixing member 20. The second connecting member 60 also has circular holes at both ends for pivotal connection with the ends of the first fixing member 10 and the second fixing member 20. Correspondingly, the first fixing member 10 and the second fixing member 20 also have circular holes to facilitate connection with the first connecting member 50 and the second connecting member 60. The portions of the first connecting member 50, the second connecting member 60, and the first fixing member 10 located between the first connecting member 50 and the second connecting member 60, as well as the portion of the second fixing member 20 located between the first connecting member 50 and the second connecting member 60, form a quadrilateral.

[0041] By providing a first connecting member 50 and a second connecting member 60 between the first fixing member 10 and the second fixing member 20, a four-bar linkage mechanism can be formed. This allows for uniform force transmission during the lifting of the support plate, avoiding localized stress concentration. Simultaneously, it ensures the support plate remains stable and does not wobble during lifting or lowering, improving the safety of the bed frame.

[0042] refer to Figure 2 and Figure 3 The first fixing member 10 has an L-shaped cross-section, and / or the second fixing member 20 includes a first bending boss 21 and a second bending boss 22. The first connecting member 50 and the second connecting member 60 are respectively connected to the second fixing member 20 through the first bending boss 21 and the second bending boss 22. The circular holes of the second fixing member 20 are provided on the first bending boss 21 and the second bending boss 22 to facilitate connection with the first connecting member 50 and the second connecting member 60.

[0043] The L-shaped cross-section of the first fastener 10 not only provides a stable connection with the bed frame's support plate but also offers good structural strength and torsional resistance. The second fastener 20, with its first bending boss 21 and second bending boss 22, accommodates the assembly of the first connector 50 and the second connector 60, ensuring that they maintain a parallel planar movement with the entire system during operation. Furthermore, the boss structure disperses stress, preventing stress concentration.

[0044] refer to Figure 1 and Figure 2 The first fixing member 10 is provided with a pivoting part 11, and the piston rod 32 and the positioning member 40 are both pivotally connected to the first fixing member 10 through the pivoting part 11. The pivoting part 11 is a circular boss structure. Figure 5 The piston rod 32 has an extension plane at the end away from the pressure cylinder 31, and the extension plane has a round hole to facilitate connection with the first fixing member 10.

[0045] The piston rod 32 and the positioning member 40 are pivotally connected to the first fixing member 10 via the same pivot 11. This reduces the number of connecting parts, simplifies the assembly process, and lowers manufacturing costs. At the same time, it also makes the overall structure more compact.

[0046] Further, refer to Figure 4 and Figure 5 The first connecting member 50 is provided with a second pivot part 51, through which the pressure cylinder 31 is connected to the first connecting member 50. The second pivot part 51 is a circular boss structure. The end face of the pressure cylinder 31 contacts the corresponding mating surface of the circular boss structure to form a limiting structure, ensuring that the damper 30 and the entire system move in a parallel plane, preventing the damper 30 from tilting or wobbling. Furthermore, the end of the pressure cylinder 31 away from the piston rod 32 has an extended plane with a circular hole for easy connection to the first connecting member 50.

[0047] refer to Figure 6 One end of the positioning member 40 is pivotally connected to the first fixing member 10 via the pivot part 11, and the other end opposite to it is provided with abutting end 41 that can be separated from and abut against the positioning end face 33.

[0048] Further reference Figure 6 The positioning member 40 includes a body part 46 and a grip part 47. The grip part 47 and the body part 46 enclose each other to form a grip hollow part 48. The grip hollow part 48 has a first inner arc-shaped edge defined by the grip part and a second inner arc-shaped edge defined by the body part. The grip part has an outer arc-shaped edge.

[0049] The positioning member 40 with the above-described structure, through the double-arc grip hollow portion 48 formed by the first inner arcuate edge and the second inner arcuate edge, combined with the outer arcuate edge of the grip portion, not only improves the user's operating comfort and ease of use, but also enhances grip stability. Furthermore, the arcuate edge effectively disperses grip pressure, resulting in a uniform force distribution.

[0050] refer to Figure 6 and Figure 7 The positioning member 40 has an elongated hole 42 at one end, and the pivoting part 11 is a pivot shaft 111 passing through the elongated hole 42. When the piston rod 32 is in the extended position and the pivot shaft 111 is located at the end of the elongated hole 42 away from the pressure cylinder 31, the abutment surface 43 contacts the upper surface of the pressure cylinder 31 due to gravity, and the abutment end 41 is located between the first and second ends of the pressure cylinder 31. At this time, the positioning member 40 does not restrict the piston rod 32 from moving relative to the pressure cylinder 31 from the extended position to the retracted position.

[0051] Combination Figure 8The user can manually operate the gripping part 47 and / or the gripping hollow part 48 of the positioning member, so that the piston rod 32 is in the extended position and the pivot shaft 111 is located at the other end of the elongated hole 42. At this time, the abutting end 41 is located on the side of the positioning end face 33 opposite to the second end of the pressure cylinder 31, and the abutting end 41 abuts against the positioning end face 33. This achieves the goal of the positioning member 40 restricting the piston rod 32 from moving from the extended position to the retracted position relative to the pressure cylinder 31, thereby locking the damper 30.

[0052] According to the above structure, the elongated hole 42 at one end of the positioning member 40 cooperates with the pivot shaft 111, and the pivot shaft 111 achieves two states of locking and unlocking at different positions of the elongated hole 42. When the piston rod 32 is in the extended position and the pivot shaft 111 is located at the end of the elongated hole 42 away from the pressure cylinder 31, the abutment end 41 is located between the first and second ends of the pressure cylinder 31. At this time, the positioning member 40 does not abut against the positioning end face 33, and does not restrict the piston rod 32 from moving from the extended position to the retracted position relative to the pressure cylinder 31, which is suitable for temporarily lifting the support plate of the bed frame. When the piston rod 32 is in the extended position and the pivot shaft 111 is located at the other end of the elongated hole 42, the abutment end 41 is located on the side of the positioning end face away from the second end of the pressure cylinder 31. At this time, the positioning member 40 can abut against the positioning end face 33 to achieve complete locking, thereby restricting the piston rod 32 from moving from the extended position to the retracted position relative to the pressure cylinder 31.

[0053] Furthermore, the user manually operates the gripping portion 47 and / or the gripping perforated portion 48 of the positioning member to lift the positioning member 40, separating the abutting end 41 from the positioning end face 33, so that the abutting end 41 is located between the first end and the second end of the pressure cylinder 31. At this time, the piston rod 32 is in the extended position and the pivot axis is located at the end of the elongated hole 42 away from the pressure cylinder 31, and the abutting surface 43 is in contact with the upper surface of the pressure cylinder 31, that is, the positioning member 40 does not restrict the piston rod 32 from moving from the extended position to the retracted position relative to the pressure cylinder 31.

[0054] refer to Figure 6 The positioning member 40 is also provided with two side plate portions 44 and 45, which are located on opposite sides of the abutting end 41, and the distance between the two side plate portions 44 and 45 is greater than or equal to the diameter of the pressure cylinder 31.

[0055] According to the above structure, by providing two side plates 44 and 45 on opposite sides of the abutment end 41, and the distance between the two side plates 44 and 45 being greater than or equal to the diameter of the pressure cylinder 31, the movement trajectory of the positioning member 40 is accurately guided and limited. The two side plates 44 and 45 enable the positioning member 40 to maintain a predetermined trajectory during movement, preventing the positioning member 40 from deflecting during movement. In addition, the two side plates 44 and 45 also give the positioning member 40 better structural strength.

[0056] Continue to refer to Figure 6 Each side plate portion 44 (45) is provided with a lug 441 (451) that protrudes beyond the abutting end 41.

[0057] By providing lugs 441 (451) on each side plate portion 44 (45) that protrude beyond the abutment end 43, the structural strength and bending resistance of the positioning member 40 can be further improved. In addition, the lugs 441 and 451 on the two side plate portions 44 and 45 can increase the contact surface between the positioning member 40 and the pressure cylinder 31, providing a more stable movement trajectory for the positioning member 40 and further improving the guiding effect.

[0058] <Example Bed Frame>

[0059] This disclosure also provides a bed frame that includes the support device 100 described above.

[0060] By installing a support device 100 on the bed frame, a stable and reliable support can be provided for the support plate when the support plate of the bed frame is lifted, thereby improving safety and making it easier for users to lift the support plate of the bed frame to retrieve or place items.

[0061] It should be noted that the elements described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0062] It should be understood that multiple components and / or parts can be provided by a single integrated component or part. Alternatively, a single integrated component or part can be divided into multiple separate components and / or parts. The use of the public designation "a" or "an" to describe a component or part does not imply the exclusion of other components or parts.

[0063] It should be understood that although terms such as “first” or “second” may be used in this disclosure to describe various elements (such as the first fastener and the second fastener), these elements are not defined by these terms, which are only used to distinguish one element from another.

[0064] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0065] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A support device for a bed frame, the bed frame comprising a support plate and a bed frame body, characterized in that, The support device includes: The first fastener is configured to be fixedly connected to the support plate of the bed frame; The second fastener is configured to be fixedly connected to the bed frame body of the bed frame; The damper includes a pressure cylinder and a piston rod. The pressure cylinder has a positioning end face at its first end where the piston rod extends. As the support plate is lifted relative to the bed frame body, the first fixing member moves relative to the second fixing member, causing the piston rod to move from a retracted position to an extended position relative to the pressure cylinder. The positioning element, by detachably abutting against the positioning end face, restricts the piston rod from moving relative to the pressure cylinder from the extended position to the retracted position.

2. The support device according to claim 1, characterized in that, The first fixing member is provided with a pivoting part, and the piston rod and the positioning member are both pivotally connected to the first fixing member through the pivoting part.

3. The support device according to claim 2, characterized in that, One end of the positioning member is pivotally connected to the first fixing member through the pivot part, and the other end opposite to it is provided with abutting end that can be separated from and abut against the positioning end face.

4. The support device according to claim 3, characterized in that, One end of the positioning member is provided with an elongated hole, and the pivoting part is a pivoting shaft passing through the elongated hole. When the piston rod is in the extended position and the pivoting shaft is located at the end of the elongated hole away from the pressure cylinder, the abutting end is located between the first end and the second end of the pressure cylinder. When the piston rod is in the extended position and the pivoting shaft is located at the other end of the elongated hole, the abutting end is located on the side of the positioning end face facing away from the second end of the pressure cylinder.

5. The support device according to claim 3, characterized in that, The positioning member is further provided with two side plates, which are located on opposite sides of the abutting end, and the distance between the two side plates is greater than or equal to the diameter of the pressure cylinder.

6. The support device according to claim 5, characterized in that, Each side plate has a lug that protrudes beyond the abutting end.

7. The support device according to claim 3, characterized in that, The positioning member includes a body and a gripping part. The gripping part and the body form a gripping hollow part. The gripping hollow part has a first inner arcuate edge defined by the gripping part and a second inner arcuate edge defined by the body part. The gripping part has an outer arcuate edge.

8. The support device according to claim 1, characterized in that, Also includes: The first connector has its two ends pivotally connected to the first fixing member and the second fixing member, respectively. as well as The second connector has its two ends pivotally connected to the ends of the first and second fixing members, respectively. The first connector, the second connector, the portion of the first fixing member located between the first connector and the second connector, and the portion of the second fixing member located between the first connector and the second connector form a quadrilateral.

9. The support device according to claim 8, characterized in that, The first fastener has an L-shaped cross-section, and / or the second fastener includes a first bending boss and a second bending boss, and the first connector and the second connector are respectively connected to the second fastener through the first bending boss and the second bending boss.

10. A bed frame, characterized in that, Includes the support device according to any one of claims 1 to 9.

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