Adjustable bedside armrest

Abstract

The utility model discloses an adjustable bedside handrail which is characterized by comprising a horizontal support and a tube body fixed on the upper ends of two middle tubes, the two middle tubes are provided with a plurality of clamping positions, two small tubes are respectively embedded into the two middle tubes from the upper ends, elastic ejector rod mechanisms are fixedly embedded into the lower end tubes of the two small tubes, and handrails are fixed at the top ends of the two small tubes. The adjustable bedside armrest is characterized in that the armrest is provided with a key, the key can be linked with an elastic ejector rod mechanism, an ejector rod retracts inwards, two small pipes can slide freely, and when the key is released, the ejector rod extends outwards under the action of a spring and is inserted into a middle pipe to be clamped, and the height is locked. The adjustable bedside armrest is linked with the elastic ejector rod mechanism by pressing the key, so that the small pipes can slide freely up and down in the middle pipe; the height-adjustable armrest can be suitable for use habits of different crowds, and is simple and convenient to operate. In addition, with the horizontal support as a fixed point, the height of the large pipe can be adjusted up and down along the outer pipe surface of the middle pipe, and the bottom of the large pipe is used for supporting the ground, so that the bed is suitable for different bed heights.

Description

Technical Field

[0001] This utility model belongs to the field of rehabilitation and nursing equipment, specifically relating to a bedside handrail. Background Technology

[0002] Elderly people often experience slow movements and lack of strength, leading to various inconveniences in their mobility. Therefore, bedside handrails have been introduced to the market to address this issue. These handrails are fixed to the mattress via horizontal supports, securing the handrails to the edge of the bed. When getting in and out of bed, the elderly can use the handrails for support. Additionally, the handrails act as a safety barrier, preventing the elderly from falling out of bed when turning over.

[0003] Existing bedside armrests are fixed at a fixed height and cannot be adjusted to suit individual user needs, thus failing to meet the usage requirements of different people. Utility Model Content

[0004] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide an adjustable bedside armrest for adjusting the armrest height. The height adjustment of the armrest can be adapted to the usage habits of different people. The operation is simple and easy to operate, thereby solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable bedside armrest, characterized in that it includes a horizontal support, which is fixed to the upper end of two central tubes. The two central tubes are provided with locking positions. Two small tubes are nested into the upper ends of the two central tubes respectively. An inherent elastic push rod mechanism is embedded in the lower end of the two small tubes. An armrest is fixed to the top of the two small tubes. A button is provided on the armrest. When the button is pressed, the button can retract the push rod of the elastic push rod mechanism, allowing the two small tubes to slide freely up and down within the two central tubes. When the button is released, the push rod extends out of the locking hole and inserts into the locking position of the central tube under the action of the longitudinal spring, locking the height of the extension and retraction of the small tubes and the central tubes.

[0006] Furthermore, a large tube is fitted onto the lower end of the middle tube, with the outer surface of the middle tube inserted into the body of the large tube. The top of the large tube is locked or unlocked by a clamp and bolt that are rotated and adjusted. The large tube can slide up and down along the outer surface of the middle tube, thereby adjusting the telescopic height of the large tube and the middle tube.

[0007] This utility model has the following advantages: The adjustable bedside armrest, through the activation of a button and the linkage of an elastic top rod mechanism, allows the small tube to slide freely up and down within the middle tube, achieving height adjustment. This caters to the usage habits of different users and is simple and convenient to operate. Furthermore, with the horizontal support as a fixed point, the large tube can be adjusted up and down along the outer surface of the middle tube, and the bottom of the large tube supports the ground, thus adapting to different bed heights. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a utility model of a raised handrail.

[0009] Figure 2 This is a schematic diagram of the handrail of the utility model at its lowest position.

[0010] Figure 3 This is a schematic diagram of the linkage structure between the button and the elastic push rod mechanism of the utility model.

[0011] Figure 4 This is a schematic diagram showing the disassembly of the three tubes of the utility model.

[0012] Figure 5 This is a schematic diagram of a button explosion for a utility model.

[0013] Figure 6 This is an exploded schematic diagram of the elastic push rod mechanism of the utility model.

[0014] Figure 7 This is a schematic diagram illustrating the usage scenario of the adjustable bedside armrest of the utility model.

[0015] Reference numerals: 1. Large tube; 2. Medium tube; 3. Small tube; 4. Armrest; 5. Button; 6. Pull cable; 7. Elastic push rod mechanism; 8. Bed; 9. Mattress; 11. Floor mat; 12. Sleeve; 13. Bolt; 14. Groove; 21. Horizontal tube; 22. Horizontal support; 23. Locking position; 221. Collar; 31. Connecting tube; 32. Locking hole; 51. Press; 52. Push rod; 53. Angled slide; 54. Horizontal slide; 55. Button inner shell; 71. Push rod; 72. Horizontal spring; 73. Internal drive component; 74. Left shell; 75. Right shell; 76. Longitudinal spring; 731. Ramp; Detailed Implementation

[0016] like Figure 1-7As shown, an adjustable bedside armrest includes two large tubes 1, each fitted with one of two medium tubes 2. The outer sides of the medium tubes 2 have equidistant locking positions 23, all aligned with the same axis. Two small tubes 3 are fitted into the medium tubes 2. A silicone rubber mat is fixed to the bottom of each large tube 1. The bottom of the large tube 1 provides support to the ground, reduces noise between the tube and the ground, and provides an anti-slip function. The large tubes 1, medium tubes 2, and small tubes 3 are all hollow tubes. The top end of the main tube 1 is provided with a retainer 12, and the retainer 12 is provided with a bolt 13 for adjusting the tightness. The closing force of the retainer 12 on the tube body of the main tube 1 is adjusted by rotating the bolt. The tube body at the top end of the main tube 1 is provided with an axial groove 14. The groove 14 is used to provide adjustment space for the retainer 12 to close or loosen the tube body of the main tube 1. Two intermediate tubes 2 are respectively fitted into the inner walls of the two main tubes 1. The two intermediate tubes 2 can slide up and down the inner walls of the main tubes 1. The two intermediate tubes 2 are connected by a horizontal tube 21 so that the two intermediate tubes 2 can slide synchronously when the main tube 1 slides. A horizontal support 22 is provided below the axis of the horizontal tube 21. The horizontal support 22 is fitted onto the outer tube of the two middle tubes 2 with collars 221 and can slide up and down along the outer tube of the middle tube 2. The collars 221 at both ends of the horizontal support 22 have screw holes and are locked to the tube of the middle tube 2 with screws. The horizontal support 22 is placed horizontally on the bed. The mattress exerts a downward pressure on the horizontal support 22, thereby fixing the bedside armrest on the side of the bed 9. The locking positions 23 can be evenly distributed or distributed at different distances.

[0017] Two small tubes 3 are respectively inserted into two medium tubes 2. The two small tubes 3 can slide up and down along the inner wall of the two medium tubes 2. The two small tubes 3 are connected and fixed by a connecting tube 31, so that the two small tubes 3 are integrated and can slide synchronously on the inner wall of the medium tube 2. A handrail 4 is fixed on the small tube 3. The two ends of the handrail 4 are fixed to the tube body of the two small tubes 3. The handrail 4 moves up and down synchronously with the small tubes 3.

[0018] A button 5 is fixedly installed in the middle section of the connecting tube 31. The button 5 has two push rods 52 on its pressing part 51. Each push rod 52 has one end of a pull wire 6 fixed to it, and the other end of the pull wire 6 is fixed to an elastic push rod mechanism 7. The two pull wires 6 extend along the hollow interior of the two smaller tubes 3 to the bottom of the smaller tubes 3. The pressing part 51 is on the inner wall of the connecting tube 31, the pull wires 6 are in the hollow space of the smaller tubes 3, and the elastic push rod mechanism 7 is on the inner wall at the bottom end of the smaller tubes 3. The two push rods 52 pass laterally through the two side plates of the pressing part 51. The pressing part 51 has an upward-sloping oblique groove 53 outside the two through-holes, and a horizontal oblique groove 54 at the through-holes. The pressing part 51 extends longitudinally into the inner shell 55 of the button. The oblique groove 53 guides the lateral displacement of the push rod 52, and the horizontal groove 54 limits the push rod stroke, ensuring the linear traction of the pull wire 6.

[0019] The push rod 71 of the elastic push rod mechanism 7 is always kept slightly passing through the tube body of the small tube 3 by the elastic force of the transverse spring 72. When the user presses the button 51 and lifts the button 51, the push rod 52 is controlled by the directional action of the inclined slide groove 53 and the transverse slide groove 54. The push rod 52 moves outward along the transverse slide groove 54, generating a travel stroke, which pulls the pull cable 6. The pull cable 6 pulls the internal drive component 73 inside the elastic push rod mechanism 7. The internal drive component 73 of the elastic push rod mechanism 7 exerts downward pressure, causing the push rod 71 to lose its support force. The user's hand grips the button. When part 51 is lifted or pressed down, the end of the push rod 71 has an inclined surface. When lifted or pressed down, the inclined surface causes the push rod 71 to move inward, allowing the small tube 3 to slide up and down the middle tube 2. When part 51 is released, the push rod 71 maintains an outward pushing force under the elastic force of the horizontal spring 72. The end of the push rod 71 passes through the locking hole 32 of the small tube 3 and presses against the inner wall of the middle tube 2. When the locking hole 32 of the small tube 3 and the locking position 23 of the middle tube 2 overlap, the push rod 71 has an outward pushing space. The push rod 71 passes through the locking hole 32 of the small tube 3 and the locking position 23 of the middle tube 2 to complete the locking action. The elastic push rod mechanism 7 includes a left housing 74 and a right housing 75 that mates with the left housing 74. The elastic push rod mechanism 7 is cylindrical and has an opening at its upper end. One end of the pull wire 6 enters through the opening of the elastic push rod mechanism 7 and is movably connected to the inner drive member 73 and sleeved on the longitudinal spring 76. The inner drive member 73 presses against the transverse spring 72, and the transverse spring 72 is sleeved with the push rod 71. The longitudinal spring 76 is used to link the push rod 71 and the pressing part 51 for reset. When the pressing part 51 is pressed, the pull wire 6 pulls the inner drive member 73. The inner drive member 73 pushes against the elastic force of the longitudinal spring 76 and moves upward. The ramp 731 in the moving inner drive member 73 generates downward pressure, pressing down the transverse spring 72 and causing the push rod 71 to lose its outward pushing force. When the pressing part 51 loses its pressing force, the inner drive member 73 is pushed downward by the elastic force of the longitudinal spring 76. The downward movement of the inner drive member 73 releases the elastic force of the transverse spring 72, thus pushing the push rod 71 outward. The ramp 731 of the inner drive component 73 engages with the inclined surface at the end of the push rod 71. When the button is pressed, the ramp presses down on the push rod 71, forcing the push rod to move inward and disengage from the locking hole 32.

[0020] In use, the horizontal support 22 is fitted under the mattress 9. The mattress 9's own center of gravity exerts downward pressure on the horizontal support 22, keeping it parallel to the horizontal plane and unable to move. Pressing the button 51 and moving the armrest 4 up and down completes the height adjustment of the armrest 4. In addition, by loosening the bolt 13, the main tube 1 can be adjusted up and down along the outer tube of the middle tube 2 until it is firmly supported on the ground. Then, the bolt 13 is locked to fix the telescopic height of the main tube 1 and the middle tube 2.

[0021] In addition, when the ground is uneven, loosen bolt 13 to adjust the height of the main pipe 1, and then tighten it after the rubber mat 11 is in full contact with the ground to ensure stability.

Claims

1. An adjustable bedside armrest, characterized in that, The utility model provides a kind of height-adjustable horizontal support, including horizontal support (22), horizontal support (22) is fixed on the pipe body of two middle pipes (2) upper end, two middle pipes (2) are equipped with clamping (23), two middle pipes (2) are respectively nested into two small pipes (3) from upper end, two small pipes (3) lower end pipe is embedded with elastic jack mechanism (7), two small pipes (3) top end is fixed with handrail (4), handrail (4) is equipped with button (5), hold button (5), button (5) can be linked elastic jack mechanism (7) the retraction of jack (71), two small pipes (3) can be freely slid in two middle pipes (2), release button (5), jack (71) is extended from clamping hole (32) under the action of longitudinal spring (76) and inserts the clamping (23) of middle pipe (2), lock small pipe (3) and the height of middle pipe (2) telescopic.

2. The adjustable bedside armrest of claim 1, wherein, Middle pipe (2) lower end is fitted with large pipe (1), the outer pipe surface of middle pipe (2) is inserted into large pipe (1), the pipe body of large pipe (1) top end is adjusted and controlled by clamping sleeve (12) and bolt (13) rotation, large pipe (1) is locked or unlocked middle pipe (2), large pipe (1) can be slid along the outer pipe body of middle pipe (2) up and down, so as to adjust the telescopic height of large pipe (1) and middle pipe (2).

3. The adjustable bedside armrest of claim 1, wherein, Two small pipes (3) are respectively fitted into two middle pipes (2), two small pipes (3) can be slid along the inner wall of two middle pipes (2) up and down, two small pipes (3) are connected and fixed by connecting pipe (31), so that two small pipes (3) are integrated.

4. The adjustable bedside armrest of claim 3, wherein, The length of connecting pipe (31) is provided with button (5) in fixed mode, the pressing part (51) of button (5) is provided with two push rods (52), one end of two push rods (52) is fixed with pull wire (6), the other end of pull wire (6) is fixed with elastic jack mechanism (7), and elastic jack mechanism (7) is arranged in the inner wall of small pipe (3) bottom end.

5. The adjustable bedside armrest of claim 4, wherein, Two push rods (52) are transversely arranged through the two side plates of pressing part (51), the oblique sliding groove (53) is arranged obliquely upwards outside the two penetration positions of pressing part (51), and the horizontal sliding groove (54) is arranged horizontally in the penetration position, and the pressing part (51) is longitudinally arranged in the inner shell (55) of button.

6. The adjustable bedside armrest of claim 5, wherein, Elastic jack mechanism (7) includes left shell (74) and right shell (75) opposite to left shell (74), and elastic jack mechanism (7) is in the form of a cylinder, the upper end of elastic jack mechanism (7) is provided with an opening, one end of pull wire (6) is arranged into the opening of elastic jack mechanism (7) and is movably connected with inner driving part (73) and is sleeved with longitudinal spring (76), inner driving part (73) is embedded with transverse spring (72), and transverse spring (72) is sleeved with jack (71).

7. The adjustable bedside armrest of claim 2, wherein, The top end of large pipe (1) is provided with clamping sleeve (12), the clamping sleeve (12) is provided with bolt (13) for adjusting the tightness, the pipe body of large pipe (1) is provided with slot (14) in axial direction, and the slot (14) is used for adjusting the space of clamping sleeve (12) for closing or releasing the pipe body of large pipe (1).

Images