Connecting structure for fixed bed frame and bed legs of electric bed
By using a connecting structure between the longitudinal rod and the crossbar at the connection between the fixed bed frame of the electric bed and the bed legs, the connecting block and the bed legs are fixed by using threaded fasteners, which solves the complex connection, inconvenient disassembly and stable connections in the prior art. The problem of insufficient sexuality enables simpler assembly and more stable connections.
Patent Information
- Application Number
- CN202421437461.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The connection structure between the fixed bed frame and the bed legs of the existing electric bed is complex, with inconvenient disassembly and insufficient stability.
A connecting structure of a longitudinal rod and a cross rod is adopted, wherein a first connecting block is fixed on the longitudinal rod and a second connecting block is fixed on the cross rod. The first connecting block, the second connecting block and the bed leg screw are connected through a threaded fastener. Connect and fix, forming a stable connection.
The connection structure between the fixed bed frame and the bed legs is simplified, the number of parts is reduced, and the disassembly and assembly is easier and more convenient, while improving the stability of the connection.
Smart Images
Figure CN222510289U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting tables, in particular to a connection structure between a fixed bed frame and bed legs of an electric bed. Background Art
[0002] As people's quality of life improves, the demand for the functions of beds is getting higher and higher. For example, before going to bed, people generally hope that the electric bed will electrically drive part of the bed board to rise so that they can sit or half-lying to read, watch TV or use their mobile phones. When falling asleep, they generally hope that the electric bed will electrically drive part of the bed board to rise so that they can lie flat.
[0003] The backboard and legboard of the electric bed in the prior art are both hinged to the fixed bed frame, and are both detachably connected to reduce the packaging volume for easy transportation and storage. In order to reduce the packaging volume for easy transportation and storage, the fixed bed frame and bed legs are also detachable structures.
[0004] However, the connection structure between the fixed bed frame and the bed legs of the prior art electric bed still has room for improvement, such as the large number of parts of the detachable connection structure, and the relatively complex disassembly and assembly. For example, the stability of the connection between the horizontal bar, the longitudinal bar and the bed legs of the frame is still not ideal. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a connection structure between a fixed bed frame and bed legs of an electric bed, which is relatively simple and convenient to assemble and disassemble.
[0006] The technical solution of the utility model is to provide a connection structure between a fixed bed frame and bed legs of an electric bed, wherein the fixed bed frame comprises a longitudinal rod and a transverse rod; the connection structure at the connection between the longitudinal rod, the transverse rod and the bed legs comprises: a first connection block is fixed on the longitudinal rod, a second connection block is fixed on the transverse rod, the first connection block and the second connection block are overlapped and screwed and fixed to the bed legs via threaded fasteners.
[0007] After adopting the above structure, the connection structure of the fixed bed frame and the bed legs of the utility model has the following advantages: since the first connection block is fixed on the longitudinal rod and the second connection block is fixed on the transverse rod, it is only necessary to screw the first connection block, the second connection block and the bed legs with threaded fasteners, the connection structure has relatively few parts, and the disassembly and assembly are relatively simple and convenient. In addition, since the first connection block and the second connection block overlap, the contact area is relatively large, and the stability of the connection is relatively good.
[0008] Furthermore, the first connection block and the second connection block are screwed together via a vertical threaded fastener, the longitudinal rod is screwed together with the second connection block via a horizontal threaded fastener, or the horizontal rod is screwed together with the first connection block via a horizontal threaded fastener. With the above structure, the connection is firmly limited in both vertical and horizontal directions, the integrity is better, and the connection is more firm, stable and reliable.
[0009] Furthermore, the longitudinal rod is a frame longitudinal rod, and the transverse rod is a frame transverse rod; the first connecting block is a first U-shaped block with an opening facing upward, and the second connecting block is a second U-shaped block with an opening facing upward, the end of the frame longitudinal rod and the first U-shaped block are accommodated in the groove of the second U-shaped block, and the vertical screw fixed on the bed leg passes through the screw hole of the transverse plate of the second U-shaped block and the screw hole of the transverse plate of the first U-shaped block and is screwed and fixed with the first nut; the first transverse bolt passes through the bolt hole of a vertical plate of the second U-shaped block and the bolt hole of the longitudinal rod and is screwed and fixed with the second nut. After adopting the above structure, the contact area between the longitudinal rod and the first U-shaped block and the second U-shaped block is larger, making the connection structure more firm, more stable and more reliable. The vertical screw fixed on the bed leg further reduces the number of separate parts, and the modular characteristics are more obvious, and the disassembly and assembly are simpler and more convenient.
[0010] Furthermore, the two frame longitudinal bars and the two frame cross bars form a rectangular frame, and the four corners of the rectangular frame are provided with bed legs, and each bed leg is connected to the frame longitudinal bars and the frame cross bars. After adopting the above structure, on the basis of ensuring that the fixed bed frame is firmly connected to the four bed legs at the four corners, the number of longitudinal bars and cross bars of the fixed bed frame is relatively small.
[0011] Furthermore, the longitudinal rods are two frame longitudinal rods, and the connection structure at the connection between the longitudinal rods, the cross rods and the bed legs also includes a third connection block fixed in the middle of the length of each frame longitudinal rod, and the third connection block is screwed to a bed leg located in the middle of the frame length through a vertical threaded fastener. After adopting the above structure, when the fixed bed frame of the electric bed is relatively long, the length of the two middle bed legs is increased, so that the support force of the fixed bed frame is stronger and the mechanical properties of the whole bed are better.
[0012] Furthermore, the third connecting block is a third U-shaped block with an opening facing upward, and the vertical screw fixed on the bed leg passes through the screw hole of the third U-shaped block horizontal plate and is screwed and fixed with the third nut. After adopting the above structure, the third connecting block is more firmly connected with the frame longitudinal rod and the bed leg, and is more convenient to install and disassemble.
[0013] Furthermore, the longitudinal bars are two frame longitudinal bars, and the fixed bed frame also includes a middle cross bar located near the two bed legs located in the middle of the frame longitudinal bars, and the connection structure at the connection between the longitudinal bars, cross bars and bed legs also includes a fourth connection block fixed at each end of the middle cross bar, and the fourth connection block is fixed by a transverse threaded fastener after being engaged with the respective frame longitudinal bars. After adopting the above structure, the transverse support force of the two bed legs in the middle of the frame length is strengthened to make the connection structure more stable, and the connection between the middle cross bar and the frame longitudinal bar and the connection between the frame longitudinal bar and the middle bed leg is divided into independent connection structures in consideration of leaving installation space for the electric drive located in the middle of the frame fixed bed frame, so that the installation and disassembly of the two connection structures are simple, convenient and fast.
[0014] Furthermore, the fourth connection block is a fourth U-shaped block with an opening facing downward, the fourth U-shaped block is clamped downward on the respective frame longitudinal bars, a fourth nut is welded on the inner side of the inner vertical plate of the fourth U-shaped block, and the second transverse bolt passes through the bolt through hole of the outer vertical plate of the fourth U-shaped block, two bolt through holes of each frame longitudinal bar and the bolt through hole of the inner vertical plate of the fourth U-shaped block and is screwed on the fourth nut. With the above structure, the fourth connection block is more firmly connected to the frame longitudinal bars and the middle horizontal bar, and is more convenient to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram when the connection structure of the utility model is applied to an electric bed.
[0016] Figure 2 It is a schematic diagram of the structure of the connection structure of the utility model when viewed from the side.
[0017] Figure 3 It is a schematic diagram of the side plan view of the connection structure of the utility model.
[0018] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of A.
[0019] Figure 5 yes Figure 4 Schematic diagram of the explosion structure with some parts exploded.
[0020] Figure 6 yes Figure 3 Schematic diagram of the enlarged structure of B.
[0021] Figure 7 yes Figure 6 Schematic diagram of the explosion structure with some parts exploded.
[0022] As shown in the figure:
[0023] 1. The board frame assembly except the fixed bed frame, 11. the thigh board, 12. the calf board, 13. the back board, 14. the back board frame, 15. the thigh board frame, 16. the calf board frame, 17. the seat board, 18. the seat board frame;
[0024] 2. Electric drive;
[0025] 3. Bed legs;
[0026] 4. Fixed bed frame, 41. Frame longitudinal bar, 42. Frame horizontal bar, 43. Middle horizontal bar;
[0027] 5. Connecting structure, 51. First U-shaped block, 511. Horizontal plate of first U-shaped block, 52. Second U-shaped block, 521. Groove, 522. Horizontal plate of second U-shaped block, 523. Vertical plate of second U-shaped block, 53. Vertical screw, 54. First nut, 55. First horizontal bolt, 56. Second nut, 57. Third U-shaped block, 571. Horizontal plate of third U-shaped block, 58. Third nut, 59. Fourth U-shaped block, 591. Inner vertical plate of fourth U-shaped block, 592. Outer vertical plate of fourth U-shaped block, 510. Second horizontal bolt. DETAILED DESCRIPTION
[0028] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these specific implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each specific implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown.
[0030] The backboard 13 and legboard of the electric bed of the prior art are both hinged to the fixed bed frame 4, and the legboard generally includes a thigh board 11 and a calf board 12. When a semi-lying posture is required, the electric driver drives the backboard 13 and the legboard to rotate upward around their respective hinge axes, and when sleeping, the electric driver drives the backboard 13 and the legboard to be laid flat around their respective hinge axes. The above are generally detachable connections, such as the electric driver 2 such as a linear actuator or a linear driver is detachable from the fixed bed frame 4 and the backboard frame 14, the backboard 13 fixed on the backboard frame 14 is detachable from the fixed bed frame 4, the thigh board 11 fixed on the thigh board frame 15 is detachable from the fixed bed frame 4, the calf board 12 fixed on the calf board frame 16 is detachable from the thigh board frame 15 and the fixed bed frame 4, and the seat board 17 and the mutually fixed seat board frame 18 are detachable from the fixed bed frame 4, so as to reduce the packaging volume for easy transportation and storage. In the connection structure between the fixed bed frame and the bed legs of the electric bed of the utility model, the fixed bed frame 4 includes the longitudinal rods and cross rods of the prior art. In order to reduce the packaging volume for transportation and storage, the longitudinal rods and cross rods of the fixed bed frame 4 and the bed legs 3 or columns are also detachable. For the convenience of description, the above frame assembly or frame structure except the fixed bed frame 4 is marked as 1, that is, it is expressed as the frame assembly 1 except the fixed bed frame. The above is the prior art.
[0031] The invention points of the utility model are as follows;
[0032] The connection structure of the fixed bed frame and the bed legs of the electric bed of the utility model, the connection structure 5 at the connection between the longitudinal rods, the cross rods and the bed legs 3 includes: the longitudinal rods such as the frame longitudinal rods 41 described below are fixed with a first connection block, the cross rods such as the frame cross rods 42 described below are fixed with a second connection block, the first connection block and the second connection block are overlapped and screwed and fixed to the bed legs 3 via threaded fasteners.
[0033] The connection structure 5 at the connection between the longitudinal rod, the transverse rod and the bed leg 3 can also be called a connection assembly.
[0034] Its specific structure includes: the first connecting block and the second connecting block are screwed via a vertical threaded fastener, the longitudinal rod such as the frame longitudinal rod 41 is screwed to the second connecting block via a horizontal threaded fastener, or the horizontal rod such as the frame horizontal rod 42 is screwed to the first connecting block via a horizontal threaded fastener.
[0035] The specific shapes, positional relationships and connection relationships of the above parts can be specifically as follows: the longitudinal rod is preferably the frame longitudinal rod 41, and the transverse rod is preferably the frame transverse rod 42. The first connection block is a first U-shaped block 51 with an opening upward, and the second connection block is a second U-shaped block 52 with an opening upward. The end of the frame longitudinal rod 41 and the first U-shaped block 51 are accommodated in the groove 521 of the second U-shaped block 52. The vertical screw 53 fixed on the bed leg 3 passes through the screw hole of the second U-shaped block transverse plate 522, the screw hole of the first U-shaped block transverse plate 511, and is screwed and fixed with the first nut 54. The first transverse bolt 55 passes through the bolt hole of a vertical plate 523 of the second U-shaped block and the bolt hole of the longitudinal rod such as the end of the frame longitudinal rod and is screwed and fixed with the second nut 56.
[0036] The two frame longitudinal bars 41 and the two frame transverse bars 42 form a rectangular frame, and bed legs 3 are arranged at the four corners of the rectangular frame, and each bed leg 3 is connected to the frame longitudinal bars 41 and the frame transverse bars 42.
[0037] The above paragraph can be described from another angle: there are preferably two frame longitudinal bars 41, two frame cross bars 42, and the frame longitudinal bars 41, frame cross bars 42 are preferably connected to the bed legs 3 at four locations, namely at the four corners of the fixed bed frame 4, and the bed legs 3 are preferably four bars fixed at the four corners of the fixed bed frame 4. It is not difficult to understand that the fixed bed frame 4 includes a frame composed of two frame longitudinal bars 41 and two frame cross bars 42 and a middle cross bar 43 described below.
[0038] It is not difficult to understand that the specific shapes, positional relationships and connection relationships of the above components are allowed to vary, such as the end of the frame crossbar and the second U-shaped block can also be accommodated in the groove of the first U-shaped block. Of course, at this time, the width of the first U-shaped block is greater than the width of the frame crossbar plus the width of the second U-shaped block. The vertical screw fixed on the bed leg first passes through the screw hole of the cross plate of the first U-shaped block, then passes through the screw hole of the cross plate of the second U-shaped block, and then is screwed and fixed with the first nut. The first transverse bolt passes through the bolt hole of a vertical plate of the first U-shaped block and the bolt hole of the frame crossbar and is screwed and fixed with the second nut.
[0039] As described above, the longitudinal rods are preferably two frame longitudinal rods 41, and the connection structure 5 at the connection between the longitudinal rods, the cross rods and the bed legs 3 may also include that a third connection block may be fixed in the middle of the length of each frame longitudinal rod 41, and the third connection block is screwed to a bed leg 3 located in the middle of the frame length through a vertical threaded fastener. That is, the two third connection blocks are screwed to the two bed legs 3 located in the middle of the length of the frame longitudinal rods 41 through their respective vertical screws. The specific structure may be: the third connection block is preferably a third U-shaped block 571 with an opening upward, and the vertical screw 53 fixed on the bed leg 3 passes through the screw hole of the third U-shaped block cross plate 571 and is screwed and fixed to the third nut 58.
[0040] The vertical screw 53 fixed on the bed leg 3 mentioned above can adopt the following specific fixing structure: there is a round steel plate at the bottom of each bed leg, the bottom end of the vertical screw is welded to the center of the round steel plate, the vertical screw 53 passes upward through the center holes of several sections of the cylindrical bed legs and is fixed to the several sections of the cylindrical bed legs such as by welding or bonding with strong glue, and the top of the vertical screw 53 is an external thread for screwing with the first nut 54 or the third nut 58.
[0041] As described above, the longitudinal rods are preferably two frame longitudinal rods 41, and the fixed bed frame 4 may also include a middle crossbar 43 located near the two bed legs 3 located in the middle of the length of the frame longitudinal rods 41, and the connection structure at the connection between the longitudinal rods, the crossbars and the bed legs 3 may also include that a fourth connection block is fixed at each end of the middle crossbar 43, and the fourth connection block is fixed by a transverse threaded fastener after being engaged with the respective frame longitudinal rods 41. The specific structure may be: the fourth connection block is a fourth U-shaped block 59 with an opening downward, the fourth U-shaped block 59 is engaged downward on the respective frame longitudinal rods 41, the inner side of the fourth U-shaped block inner vertical plate 591 is welded with a fourth nut, and the second transverse bolt 510 passes through the bolt through hole of the fourth U-shaped block outer vertical plate 592, the two bolt through holes of each frame longitudinal rod 41 and the bolt through hole of the fourth U-shaped block inner vertical plate 591 and is screwed on the fourth nut.
[0042] Of course, the connection structure 5 between the two ends of the middle horizontal bar and the frame longitudinal bar and the bed leg located between the two frame longitudinal bars can also adopt the connection structure of the frame longitudinal bars, frame horizontal bars and bed legs at the four corners mentioned above, but the groove of one of the U-shaped blocks accommodates not the end of the frame longitudinal bar or the frame horizontal bar but the middle section of the frame longitudinal bar or the frame horizontal bar.
[0043] It is not difficult to understand that threaded fasteners are a general concept, generally including bolts and nuts, screws and nuts or separate screws, etc. Threaded fasteners are also referred to as screws. The screw holes and bolt holes mentioned above are not marked in the figure. The frame longitudinal rod 41, the frame cross bar 42 and the middle cross bar 43 can all be rectangular metal tubes such as rectangular steel tubes or rectangular aluminum tubes.
[0044] The above unmarked parts, structures or quantities are not shown in the drawings, and some parts are not marked in the drawings. The drawings are only for reference only. If there is any inconsistency between the drawings and the text description or between the drawings, the text description shall prevail.
[0045] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A connection structure between a fixed bed frame and bed legs of an electric bed, wherein the fixed bed frame comprises a longitudinal rod and a transverse rod; characterized in that: The connecting structure at the connection of the longitudinal rod, the transverse rod and the bed leg includes: a first connecting block is fixed on the longitudinal rod, a second connecting block is fixed on the transverse rod, the first connecting block and the second connecting block are overlapped and screwed and fixed to the bed leg through a threaded fastener.
2. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 1, characterized in that: The first connecting block and the second connecting block are screwed through a vertical threaded fastener, the longitudinal rod is screwed to the second connecting block through a horizontal threaded fastener, or the transverse rod is screwed to the first connecting block through a horizontal threaded fastener.
3. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 2, characterized in that: The longitudinal rod is a frame longitudinal rod, and the transverse rod is a frame transverse rod; the first connecting block is a first C-shaped block with an upward opening, and the second connecting block is a second C-shaped block with an upward opening. The end of the frame longitudinal rod and the first C-shaped block are accommodated in the groove of the second C-shaped block. The vertical screw rod fixed on the bed leg passes through the screw hole of the transverse plate of the second C-shaped block and the screw hole of the transverse plate of the first C-shaped block and is screwed and fixed with the first nut; the first horizontal bolt passes through the bolt hole of a vertical plate of the second C-shaped block and the bolt hole of the longitudinal rod and is screwed and fixed with the second nut.
4. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 3, characterized in that: Two frame longitudinal rods and two frame transverse rods enclose a rectangular frame. Bed legs are arranged at the four corners of the rectangular frame, and each bed leg is connected to the frame longitudinal rod and the frame transverse rod.
5. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 1, characterized in that: The longitudinal rod is two frame longitudinal rods. The connecting structure at the connection of the longitudinal rod, the transverse rod and the bed leg further includes that a third connecting block is fixed in the middle of the length of each frame longitudinal rod, and the third connecting block is screwed to a bed leg located in the middle of the frame length through a vertical threaded fastener.
6. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 5, characterized in that: The third connecting block is a third C-shaped block with an upward opening. The vertical screw rod fixed on the bed leg passes through the screw hole of the transverse plate of the third C-shaped block and is screwed and fixed with the third nut.
7. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 1, characterized in that: The longitudinal rod is two frame longitudinal rods. The fixed bed frame further includes middle transverse rods arranged near the two bed legs located in the middle of the length of the frame longitudinal rods. The connecting structure at the connection of the longitudinal rod, the transverse rod and the bed leg further includes that fourth connecting blocks are fixed at both ends of the middle transverse rods. After the fourth connecting blocks are engaged with their respective frame longitudinal rods, they are fixed through a horizontal threaded fastener.
8. The connection structure between the fixed bed frame and the bed legs of the electric bed according to claim 7, characterized in that: The fourth connecting block is a fourth C-shaped block with a downward opening. The fourth C-shaped block is clamped downward on its respective frame longitudinal rod. A fourth nut is welded to the inner side of the inner vertical plate of the fourth C-shaped block. The second horizontal bolt passes through the bolt hole of the outer vertical plate of the fourth C-shaped block, the two bolt holes of each frame longitudinal rod and the bolt hole of the inner vertical plate of the fourth C-shaped block and is screwed on the fourth nut.