Adjustable toilet grab rail

Abstract

The adjustable toilet handrail comprises two symmetrical handrail devices arranged on the left and right sides of the toilet, the handrail device comprises a telescopic arm and a handrail assembly, the telescopic arm comprises a supporting arm, a sleeve and a longitudinal gear adjusting module, the bottom of the supporting arm is connected with one side of the toilet, the upper part of the supporting arm is provided with a flat inner tube part, the flat inner tube part and the flat sliding cavity arranged in the sleeve form a telescopic structure capable of sliding relative to each other, and the longitudinal gear adjusting module is used for controlling the locking or movement of the relative axial displacement of the inner tube part and the sleeve. The height of the handrail can be freely adjusted through the telescopic structure of the telescopic arm, and after the adjustment and adaptation are completed, the height position of the toilet handrail is fixed through the longitudinal gear adjusting module, so that the progressive support requirement of the old people when standing up or sitting down is met. All the adjusting mechanisms of the application are completed through manual dialing or sliding, and no additional tools are needed, so that the operation threshold of the user is reduced.

Description

Technical Field

[0001] This utility model relates to the field of toilet grab bars, specifically to an adjustable toilet grab bar. Background Technology

[0002] A toilet, also known as a sit-down toilet, mainly consists of a toilet seat, a toilet lid mounted on the seat, and a water tank located behind the seat. Compared to traditional squat toilets, it has advantages such as odor prevention, ease of installation and maintenance, no need to raise the floor, higher aesthetics, and a better user experience. It has now become a standard feature in many home renovations, and demand is increasing year by year.

[0003] With the accelerating aging of society and the increasing demand for age-friendly home furnishings, the design of assistive facilities for people with mobility impairments (such as the elderly, post-operative recoveries, or people with disabilities) is receiving increasing attention. As a frequently used daily activity, the convenience, safety, and spatial adaptability of toilet grab bars have become key areas for technological improvement. Existing toilet grab bars generally use a fixed structure, which cannot be adjusted in height and angle according to the user's height, body type, or sitting posture, resulting in poor support and even the risk of secondary injury due to poor adaptability. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an adjustable toilet grab bar:

[0005] An adjustable toilet grab bar includes two grab bar devices symmetrically arranged on the left and right sides of the toilet. Each grab bar device includes a telescopic arm and a grab bar assembly. The telescopic arm includes a support arm, a sleeve, and a longitudinal position adjustment module. The bottom of the support arm is connected to one side of the toilet, and the upper part of the support arm is provided with a flat inner tube. The inner tube and the flat sliding cavity provided in the sleeve form a telescopic structure that slides against each other. The longitudinal position adjustment module is used to control the locking or movement of the relative axial displacement between the inner tube and the sleeve.

[0006] Preferably, the longitudinal gear adjustment module includes a gear lever, a transverse pivot, and a side ear switch that are fixedly connected in sequence. The lower part of the gear lever is disposed in the inner tube cavity of the inner tube section, and the lower end of the gear lever is provided with a bent hook. The hook and multiple gear holes provided on the side wall of the inner tube cavity form a plug-in locking fit. The multiple gear holes extend along the length direction of the inner tube section. The upper end of the gear lever is fixedly connected to the radial lower surface of the transverse pivot. The center line of the gear lever and the center line of the transverse pivot are located in the same longitudinal plane. The transverse pivot is hinged to the upper part of the sleeve. The radial side of the transverse pivot is fixedly connected to the side ear switch. The side ear switch passes through the sleeve and has a side opening exposed to the outside. When the side ear switch is not operated, the transverse pivot keeps the inner tube section and the sleeve in a locked state under the gravity of the side ear switch. When the side ear switch is moved upward, the side ear switch drives the transverse pivot to rotate. The transverse pivot controls the hook to disengage from the gear hole through the gear lever, so that the inner tube section and the sleeve are in a relatively movable state. This invention features a flat sliding cavity and a multi-position hole design in the inner tube, allowing users to quickly adjust the armrest height according to their height and sitting posture. This avoids the problems of shoulder suspension or excessive forward tilting caused by traditional single-height armrests, significantly improving support stability.

[0007] Preferably, a torsion spring is sleeved on the transverse pivot, and the torsion spring is used to apply an elastic force to the transverse pivot to lock the inner tube and the sleeve. The longitudinal adjustment module utilizes the combined effect of the gravity of the side ear switch and the elastic force of the torsion spring to ensure that the handrail automatically locks after adjustment, avoiding loosening due to misoperation or long-term use, and improving stability under load compared to the traditional screw locking structure.

[0008] Preferably, it also includes a fixed plate and two hinged ends symmetrically arranged on both sides of the fixed plate. The fixed plate is fixedly installed on the upper part of the toilet seat, and the hinged ends are movably connected to the bottom of the hinged sleeve. The telescopic arm can be flipped back and forth relative to the fixed plate through the hinged ends.

[0009] Preferably, the hinged end includes a bearing portion fixedly connected to the fixed plate and a hinged pivot connected to the center of the bearing portion. The bearing portion is provided with an arc-shaped limiting groove. The sleeve is hinged to the bearing portion through the hinged pivot. The sleeve is provided with an arc-shaped slider portion that is adapted to the arc-shaped limiting groove in a circumferentially limited sliding motion centered on the hinged pivot. The arc-shaped limiting groove is used to limit the flipping angle of the telescopic arm. When the arc-shaped slider portion is limited to the lower end face of the arc-shaped limiting groove, the telescopic arm is in a supported state for use. When limited to the upper end face, the telescopic arm flips to the back of the toilet and is folded for storage. The circumferential limiting structure of the hinged pivot and the arc-shaped limiting groove allows the handrail to be flipped to the back of the toilet and folded for storage with one click, reducing space occupation when not in use and solving the problem of inconvenience caused by the protrusion of traditional handrails. The cooperation between the arc-shaped limiting groove and the arc-shaped slider portion precisely limits the flipping angle, avoiding structural damage or the risk of pinching hands due to excessive flipping.

[0010] Preferably, the armrest assembly includes a base plate, a movable platform, and a lateral adjustment module. The base plate is fixedly connected to the upper end of a sleeve, the movable platform can slide back and forth relative to the base plate, and the lateral adjustment module is used to control the relative position of the base plate and the movable platform. The surfaces of the base plate and the movable platform of the armrest assembly are made of non-slip material, and the arc design conforms to the curve of the arm, reducing fatigue caused by prolonged support.

[0011] Preferably, the lower end of the movable platform has a transverse sliding cavity in the middle, and the two inner sides of the transverse sliding cavity have a gear rack. The surface of the gear rack has multiple arc-shaped gear grooves evenly distributed along the axial direction of the movable platform. An elastic gear slider is fixedly connected to the upper end of the base plate. The elastic gear slider and the transverse sliding cavity are in a sliding fit. Both sides of the elastic gear slider have elastic protrusions that engage with the arc-shaped gear grooves to form an elastic damping engagement. The elastic damping engagement between the elastic gear slider and the arc-shaped gear allows for smooth fine-tuning of the horizontal position of the armrest, adapting to users with different arm spans, especially suitable for postoperative rehabilitation patients who require precise support. The damping engagement between the elastic gear slider and the gear rack eliminates metallic collision noise during adjustment, making it suitable for use at night or in quiet environments.

[0012] Preferably, the elastic gear slider includes a fixing block fixedly connected to the base plate and two elastic locking components installed within the fixing block. Each elastic locking component includes a central spring and elastic positioning members abutting both ends of the spring, with the outer ends of the elastic positioning members being elastic protrusions. The lateral adjustment module achieves elastic locking of the gear rack through the combination of the spring and the elastic positioning members, ensuring smooth adjustment while preventing accidental slippage due to vibration or external force.

[0013] Beneficial effects: This application allows for free height adjustment of the handrail through the telescopic structure of the telescopic arm. After adjustment and adaptation, the height position of the toilet handrail is fixed through the longitudinal gear adjustment module, meeting the progressive support needs of the elderly when getting up and sitting down. All adjustment mechanisms in this utility model are completed by manual flicking or sliding, requiring no additional tools and reducing the user's operating threshold. Attached Figure Description

[0014] Figure 1 This is a perspective view of the usage state of an embodiment.

[0015] Figure 2 This is a side view of the usage state for an embodiment.

[0016] Figure 3 This is a schematic diagram of the structure of an embodiment.

[0017] Figure 4 This is a schematic diagram of the retracted state of the handrail device.

[0018] Figure 5This is a schematic diagram of the extended state of the handrail device.

[0019] Figure 6 This is a schematic diagram of the internal structure of the handrail device.

[0020] Figure 7 This is a schematic diagram of the longitudinal gear adjustment module.

[0021] Figure 8 Schematic diagram of the internal structure of the handrail device of the escalator assembly Figure 1 .

[0022] Figure 9 Schematic diagram of the internal structure of the handrail device of the escalator assembly Figure 2 .

[0023] Figure 10 Schematic diagram of the support arm Figure 1 .

[0024] Figure 11 Schematic diagram of the support arm Figure 2 .

[0025] Figure 12 This is a schematic diagram of the hinged end.

[0026] Reference numerals: 1. Support arm; 2. Sleeve; 3. Inner tube; 4. Flat sliding cavity; 5. Gear lever; 6. Lateral pivot; 7. Side ear switch; 8. Straight hook; 9. Gear hole; 10. Fixing plate; 11. Bearing; 12. Connecting pivot; 13. Arc-shaped limiting groove; 14. Base plate; 15. Movable platform; 16. Lateral sliding cavity; 17. Gear rack; 18. Arc-shaped gear groove; 19. Arc-shaped slider; 20. Fixing block; 21. Spring; 22. Elastic positioning element; 23. Toilet seat; 24. Toilet lid; 25. Toilet tank. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-12 The present invention will be further described with reference to Example 1.

[0028] Example 1: As Figure 1-12 As shown, an adjustable toilet grab bar includes a fixed plate 10, two hinged ends symmetrically arranged on both sides of the fixed plate 10, and two grab bar devices symmetrically arranged on the left and right sides of the toilet. The fixed plate 10 is fixedly installed between the toilet seat 23 and the toilet lid 24, and is fixed to the upper surface of the toilet seat 23 by fasteners. The hinged ends are connected to the grab bar devices one by one. The grab bar devices can be rotated relative to the fixed plate 10 through the hinged ends.

[0029] The handrail device includes a telescopic arm and a handrail assembly. The telescopic arm includes a support arm 1, a sleeve 2, and a longitudinal gear adjustment module. The bottom of the support arm 1 is connected to one side of the toilet. The upper part of the support arm 1 has a flat inner tube 3. The inner tube 3 and the flat sliding cavity 4 provided in the sleeve 2 form a retractable structure that slides against each other. The longitudinal gear adjustment module is used to control the locking or movement of the relative axial displacement between the inner tube 3 and the sleeve 2. The longitudinal gear adjustment module includes a gear lever 5, a transverse pivot 6, and a side ear switch 7 that are fixedly connected in sequence. The lower part of the gear lever 5 is located in the inner tube cavity provided in the inner tube 3, and the lower end of the gear lever 5 has a bent hook part 8. The hook portion 8 and multiple stop holes 9 on the side wall of the inner tube form a plug-in locking fit. The multiple stop holes 9 extend along the length of the inner tube portion 3. The upper end of the stop rod 5 is fixedly connected to the radial lower surface of the transverse pivot 6. The center line of the stop rod 5 and the center line of the transverse pivot 6 are located in the same longitudinal plane. The transverse pivot 6 is hinged and installed in the opening in the upper part of the sleeve 2. The transverse pivot 6 can rotate relative to the sleeve 2. The lower end of the opening communicates with the flat sliding cavity 4. The radial side of the transverse pivot 6 is fixedly connected to the side ear switch 7. The side ear switch 7 passes through the sleeve 2 and has a side opening exposed to the outside. When the side ear switch 7 is not operated, the transverse pivot 6 keeps the inner tube portion 3 and the sleeve 2 in a locked state under the gravity of the side ear switch 7. When the side ear switch 7 is moved upward, the side ear switch 7 drives the transverse pivot 6 to rotate. The transverse pivot 6 controls the hook portion 8 to disengage from the stop hole 9 through the stop rod 5, so that the inner tube portion 3 and the sleeve 2 are in a relatively movable state.

[0030] The bottom of the hinged end movable hinge sleeve 2 allows the telescopic arm to flip back and forth relative to the fixed plate 10 via the hinged end. The hinged end includes a bearing part 11 fixedly connected to the fixed plate 10 and a hinge pivot 12 connected to the center of the bearing part 11. The bearing part 11 is provided with an arc-shaped limiting groove 13. The sleeve 2 is hinged to the bearing part 11 via the hinge pivot 12. The sleeve 2 is provided with an arc-shaped slider part 19 that is adapted to the arc-shaped limiting groove 13 to circumferentially limit sliding around the hinge pivot 12. The arc-shaped limiting groove 13 is used to limit the flipping angle of the telescopic arm. When the arc-shaped slider part 19 is limited to abutting the lower end face of the arc-shaped limiting groove 13, the telescopic arm is in a support state. When limited to abutting the upper end face, the telescopic arm flips to the back of the toilet and is folded and stored.

[0031] like Figure 6-9As shown, the support platform assembly includes a base plate 14, a movable platform 15, and a horizontal gear adjustment module. The base plate 14 is fixedly connected to the upper end of the sleeve 2. The movable platform 15 can slide back and forth relative to the base plate 14. The horizontal gear adjustment module is used to control the relative gear position of the base plate 14 and the movable platform 15. The upper end of the movable platform 15 is used for arm support. The lower end of the movable platform 15 has a horizontal sliding cavity 16 in the middle. The two inner sides of the horizontal sliding cavity 16 have gear rack portions 17. The surface of the gear rack portion 17 has multiple arc-shaped gear grooves 18 evenly distributed along the axial direction of the movable platform 15. The surface of the rack portion basically presents a wave-like structure. The upper end of the base plate 14 is fixedly connected to an elastic gear slider by bolts. The elastic gear slider and the horizontal sliding cavity 16 form a sliding fit. The two sides of the elastic gear slider have elastic protrusions that form an elastic damping engagement with the arc-shaped gear grooves 18. The elastic stop slider includes a fixing block 20 fixedly connected to the base plate 14 and two elastic locking components installed in the fixing block 20. The elastic locking components include a spring 21 in the middle and elastic positioning members 22 abutting against both ends of the spring 21. The outer end of the elastic positioning member 22 is an elastic protrusion.

[0032] Operating principle: This utility model has three modes: height adjustment, front and back adjustment, and flip adjustment.

[0033] Height adjustment: This application first moves the side ear switch 7 upward, thereby causing the horizontal pivot 6 to rotate. The rotation of the horizontal pivot 6 drives the gear lever 5 to control the straight hook part 8 to disengage from the gear hole 9. At this time, the inner tube part 3 and the sleeve 2 can move relative to each other, realizing the telescopic arm's telescopic function. After the height is adjusted, the side ear switch 7 is reset by gravity. At this time, the straight hook part 8 is inserted into the gear hole 9, locking the height position of the telescopic arm.

[0034] Front and rear adjustment: By directly moving the movable table 15, the gear rack 17 inside the movable table 15 overcomes the damping effect of the elastic gear slider, realizing the relative sliding of the movable table 15 and the base plate 14, thereby realizing the front and rear adjustment function of the movable table 15.

[0035] Flip adjustment: When the arc-shaped slider 19 is in the lower end face of the arc-shaped limiting groove 13, the telescopic arm is in the use support state; when the limit is in the upper end face, the telescopic arm flips to the back of the toilet and is in the folded storage state.

[0036] Example 2: Compared to Example 1, the difference in Example 2 is the addition of a torsion spring structure. This invention can achieve the corresponding function either by using a torsion spring or through the side ear switch 7. The torsion spring improves the stability of the locked state. If a torsion spring is sleeved on the transverse pivot 6, with the end of the torsion spring abutting against the inner wall of the opening, the torsion spring exerts an elastic force on the transverse pivot 6, causing the side ear switch 7 to flip downwards and reset. This elastic force keeps the inner tube 3 and the sleeve 2 locked under normal conditions.

[0037] Obviously, the above embodiments of this utility model are merely illustrative examples and not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. An adjustable toilet grab bar, characterized in that: The device includes two symmetrically arranged grab handles on the left and right sides of the toilet. Each grab handle includes a telescopic arm and a grab handle assembly. The telescopic arm includes a support arm (1), a sleeve (2), and a longitudinal position adjustment module. The bottom of the support arm (1) is connected to one side of the toilet. The upper part of the support arm (1) is provided with a flat inner tube (3). The inner tube (3) and the flat sliding cavity (4) provided in the sleeve (2) form a telescopic structure that slides against each other. The longitudinal position adjustment module is used to control the locking or movement of the relative axial displacement of the inner tube (3) and the sleeve (2).

2. The adjustable toilet grab bar according to claim 1, characterized in that: The longitudinal gear adjustment module includes a gear lever (5), a transverse pivot (6), and a side switch (7) that are fixedly connected in sequence. The lower part of the gear lever (5) is located inside the inner tube cavity of the inner tube section (3). The lower end of the gear lever (5) is provided with a bent hook (8). The hook (8) and multiple gear holes (9) provided on the side wall of the inner tube cavity form a plug-in fitting. The multiple gear holes (9) extend along the length direction of the inner tube section (3). The upper end of the gear lever (5) is fixedly connected to the radial lower surface of the transverse pivot (6). The center line of the gear lever (5) and the center line of the transverse pivot (6) are located in the same longitudinal plane. The transverse pivot (6) is hinged to the upper part of the sleeve (2). The radial side of the transverse pivot (6) is fixedly connected to the side ear switch (7). The side ear switch (7) passes through the sleeve (2) and has a side opening exposed to the outside. When the side ear switch (7) is not operated, the transverse pivot (6) keeps the inner tube (3) and the sleeve (2) locked under the gravity of the side ear switch (7). When the side ear switch (7) is moved upward, the side ear switch (7) drives the transverse pivot (6) to rotate. The transverse pivot (6) controls the straight hook (8) to disengage from the stop hole (9) through the stop lever (5), so that the inner tube (3) and the sleeve (2) are in a relatively active state.

3. The adjustable toilet grab bar according to claim 2, characterized in that: A torsion spring is sleeved on the transverse pivot (6), which is used to apply an elastic force to the transverse pivot (6) to lock the inner tube (3) and the sleeve (2).

4. The adjustable toilet grab bar according to claim 1, characterized in that: It also includes a fixed plate (10) and two hinge ends symmetrically arranged on both sides of the fixed plate (10). The fixed plate (10) is fixedly installed on the upper part of the toilet seat. The hinge ends are movable at the bottom of the hinge sleeve (2). The telescopic arm can be flipped back and forth relative to the fixed plate (10) through the hinge ends.

5. The adjustable toilet grab bar according to claim 4, characterized in that: The hinge end includes a bearing part (11) that is fixedly connected to the fixing plate (10) and a hinge pivot (12) that connects to the center of the bearing part (11). The bearing part (11) is provided with an arc-shaped limiting groove (13). The sleeve (2) is hinged to the bearing part (11) through the hinge pivot (12). The sleeve (2) is provided with an arc-shaped slider part (19) that is adapted to the arc-shaped limiting groove (13) and is circumferentially limited and slidable with the hinge pivot (12) as the center. The arc-shaped limiting groove (13) is used to limit the flip angle of the telescopic arm. When the arc-shaped slider part (19) is limited and abuts against the lower end face of the arc-shaped limiting groove (13), the telescopic arm is in the use support state. When it is limited and abuts against the upper end face, the telescopic arm is flipped to the back of the toilet and is in a folded storage state.

6. The adjustable toilet grab bar according to claim 1, characterized in that: The platform assembly includes a base plate (14), a movable platform (15), and a horizontal gear adjustment module. The base plate (14) is fixedly connected to the upper end of the sleeve (2). The movable platform (15) can slide back and forth relative to the base plate (14). The horizontal gear adjustment module is used to control the relative gear position of the base plate (14) and the movable platform (15).

7. The adjustable toilet grab bar according to claim 6, characterized in that: The lower end of the movable platform (15) is provided with a transverse sliding cavity (16). The two inner sides of the transverse sliding cavity (16) are provided with a gear rack (17). The surface of the gear rack (17) is provided with a plurality of arc-shaped gear grooves (18) evenly distributed along the axial direction of the movable platform (15). The upper end of the base plate (14) is fixedly connected with an elastic gear slider. The elastic gear slider and the transverse sliding cavity (16) are adapted to slide. The two sides of the elastic gear slider are provided with elastic protrusions that are elastically damped and engaged with the arc-shaped gear grooves (18).

8. The adjustable toilet grab bar according to claim 7, characterized in that: The elastic stop slider includes a fixed block (20) fixedly connected to the base plate (14) and two elastic locking components installed in the fixed block (20). The elastic locking components include a spring (21) in the middle and elastic positioning members (22) abutting against both ends of the spring (21). The outer end of the elastic positioning member (22) is an elastic protrusion.

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