A bath tub handrail

Abstract

This utility model discloses a bathtub grab bar, including a support, a grab bar component, and at least one movable fastener. The upper part of the support is provided with at least one sleeve that opens upwards. The bottom of the grab bar component is formed with a vertically extending lifting slide tube that is slidably embedded in the sleeve. The sleeve has an annular groove on its circumference and a positioning hole in the area of ​​the annular groove. The lifting slide tube has several locking holes arranged vertically at intervals on its circumference, and any one of the locking holes can be horizontally aligned with the positioning hole. One end of the movable fastener is pivotally connected to the annular groove through a preset vertical axis, and the movable fastener can swing around the vertical axis to engage or disengage from the annular groove. The inner side of the movable fastener is formed with a locking pin that can be sequentially inserted into the positioning hole and the locking hole.

Description

Technical Field

[0001] This utility model relates to the technical field of armrest structures, and in particular to a bathtub armrest. Background Technology

[0002] Bathtubs are a common bathroom fixture in homes, widely used for their ability to provide a comfortable bathing environment. However, for the elderly, those with mobility issues, or children, there is a risk of slipping when entering or exiting the bathtub. Therefore, bathtub grab bars are an important safety aid. Currently, bathtub grab bars on the market mainly have the following defects:

[0003] 1) Fixed height: Traditional handrails are mostly fixed structures, which cannot be adjusted according to the user's height (such as adults and children) or usage habits (such as standing to hold and sitting to support), thus limiting their applicability;

[0004] 2) Complex installation: Common installation methods are bolt drilling or strong adhesive. The former will damage the integrity of the bathtub surface, while the latter is prone to falling off due to long-term water vapor corrosion, posing a safety hazard.

[0005] 3) Insufficient stability: Some adjustable handrails are fixed by simple snap-fit ​​or spring lock, which are prone to loosening when subjected to large external forces (such as when a user uses the force to stand up), resulting in the failure of the handrail.

[0006] Therefore, there is an urgent need for a bathtub grab bar that is height-adjustable, easy to install, and highly stable to solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a bathtub grab bar that, through the design of a lifting and adjusting structure, a quick locking mechanism and an adjustable clamping component, achieves the functions of flexible height adjustment, quick installation without drilling and stable support, thereby improving safety and applicability.

[0008] To achieve the above objectives, this utility model provides a bathtub grab handle, including a support, a grab handle, and at least one movable fastener. The upper part of the support is provided with at least one sleeve that opens upwards. The bottom of the grab handle is formed with a vertically extending lifting slide tube that is slidably embedded in the sleeve. The sleeve has an annular groove on its circumference, and a positioning hole is formed in the area of ​​the annular groove on the circumference of the sleeve. The lifting slide tube has a plurality of locking holes arranged vertically at intervals on its circumference, and any one of the locking holes can be horizontally aligned with the positioning hole. One end of the movable fastener is pivotally connected to the annular groove through a preset vertical axis, and the movable fastener can swing around the vertical axis to engage or disengage from the annular groove. The inner side of the movable fastener is formed with a locking pin that can be sequentially inserted into the positioning hole and the locking hole that are aligned with each other.

[0009] Furthermore, the shape of the movable fastener matches the annular groove in an arc shape, and the other end of the movable fastener is formed with a hand lever protruding from the periphery of the annular groove.

[0010] Furthermore, it also includes a connecting rod, a movable clamp, and a clamping screw. The connecting rod is integrally bent to form an "L"-shaped mounting part and a sliding part. The sliding part of the connecting rod is slidably connected to the support in the horizontal direction. The front end of the clamping screw is threaded horizontally through and engaged with the support and the sliding part in sequence. The movable clamp is connected to the mounting part of the connecting rod. The lower part of the support has a fixed clamp protruding from its bottom surface. As the connecting rod slides horizontally relative to the support, the movable clamp and the fixed clamp engage in opposite clamping action.

[0011] Furthermore, the movable clamp is pivotally connected to the mounting part of the connecting rod via a preset horizontal axis.

[0012] Furthermore, anti-slip pads are provided on the clamping surfaces of both the movable clamp and the fixed clamp.

[0013] Furthermore, the bottom surface of the support is provided with an anti-slip pad.

[0014] Furthermore, a knob is fixedly provided at the tail end of the clamping screw.

[0015] Furthermore, the handrail component has a ring-shaped frame structure.

[0016] The advantages of this utility model using the above-mentioned solution are as follows: 1) Height adjustable: Through the sliding cooperation between the lifting slide tube and the sleeve, combined with the locking pin positioning of the movable fastener, the height of the handrail can be quickly adjusted to meet the needs of users of different heights; 2) Convenient installation: Through the clamping structure of the movable clamp and the fixed clamp, no drilling or gluing is required. The edge of the bathtub can be fixed by simply rotating the clamping screw, and disassembly is convenient; 3) Strong stability: The arc-shaped movable fastener and the sleeve's arc-shaped fitting design, the setting of multiple anti-slip pads, and the double sleeve support structure ensure that the handrail is not easy to loosen or fall off when subjected to external force; 4) Wide adaptability: The pivot design of the movable clamp can adapt to bathtub edges of different thicknesses or inclination angles, and the ring-shaped handrail provides multi-directional grip points, improving the comfort of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of the bathtub grab bar.

[0018] Figure 2 This is a schematic diagram of the overall design of the bathtub grab bar.

[0019] Figure 3 This is a cross-sectional view of the center line of the bathtub grab rail.

[0020] Figure 4 This is a cross-sectional view of the bathtub grab bar at the fastener.

[0021] Figure 5 This is a schematic diagram of a detachable fastener.

[0022] Figure 6 This is a schematic diagram of the combination of the connecting rod and the movable clamp.

[0023] Figure 7 This is a schematic diagram of the support.

[0024] Figure 8 This is a schematic diagram of the handrail component.

[0025] Among them, 1-support, 11-sleeve, 111-positioning hole, 12-fixed clamp, 2-handrail, 21-lifting slide tube, 211-locking hole, 31-movable clamp, 32-connecting rod, 321-sliding part, 322-installation part, 33-clamping screw, 331-knob part, 4-fastener, 41-locking pin, 42-hand lever part, 5-anti-slip pad. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description of the utility model is provided below with reference to the accompanying drawings, which show preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to enable a more thorough and comprehensive understanding of the disclosure of this utility model.

[0027] See appendix Figure 1-8 As shown, in this embodiment, a bathtub grab handle includes a support 1, a grab handle 2, and at least one snap fastener 4. The support 1 has at least one upward-opening sleeve 11 (preferably two symmetrically arranged sleeves to improve support stability) at its upper part. The grab handle 2 has a vertically extending lifting tube 21 (preferably two lifting tubes 21, with each tube corresponding to one sleeve 11) formed in a slidable fit. The inner diameter of the sleeve 11 is slightly larger than the outer diameter of the lifting tube 21, creating a clearance fit. This allows the lifting tube 21 to slide freely vertically along the inner wall of the sleeve 11 (the sliding stroke is determined by the height of the sleeve 11 and the length of the lifting tube 21). Simultaneously, the inner wall of the sleeve 11 provides radial constraint to the lifting tube 21, preventing the grab handle 2 from swaying left and right and improving the stability of the adjustment process.

[0028] In this embodiment, an annular groove (2-3 mm deep, 5-8 mm wide) is formed on the circumference of the sleeve 11. A positioning hole 111 is formed on the wall of the sleeve 11 in the area where the groove is located. Several locking holes 211 are arranged vertically at intervals on the circumference of the lifting slide tube 21 (e.g., 2 holes are arranged at 2 cm intervals, covering the lifting adjustment range). Therefore, when the lifting slide tube 21 slides to the target height, a locking hole 211 will be horizontally aligned with the positioning hole 111 (the axes of the two holes coincide), forming a coaxial channel of "positioning hole 111-locking hole 211", providing a path for the subsequent insertion of the locking pin 41 of the movable fastener 4.

[0029] In this embodiment, one end of the movable fastener 4 is pivotally connected to the annular groove via a vertical shaft (both ends of the vertical shaft are engaged in the annular groove, and the vertical shaft moves through a pre-set vertically extending shaft hole at the end of the movable fastener 4, thereby enabling the movable fastener 4 to swing around the vertical shaft). The movable fastener 4 can swing around the vertical shaft to engage or disengage from the annular groove. The shape of the movable fastener 4 matches the annular groove (forming an arc surface that matches the circumference of the sleeve 11, preferably with an arc of 120°-150°), ensuring that the movable fastener 4 is flush with the outer surface of the sleeve 11 when engaged in the groove, preventing it from protruding and scratching the user. The inner side of the movable fastener 4 has a protruding locking pin 41. When the movable fastener 4 swings around the vertical axis and engages with the annular groove, the locking pin 41 inserts axially into the aligned positioning hole 111 and locking hole 211, mechanically restricting the relative sliding of the slide tube and sleeve 11 to achieve height locking. When the movable fastener 4 is pushed out of the groove in the opposite direction, the locking pin 41 exits the hole, and the lifting slide tube 21 returns to its free vertical sliding state. In addition, the other end of the movable fastener 4 has a hand lever part 42 protruding from the outer periphery of the annular groove. The user can easily lock or unlock by levering this part without the need for tools, significantly improving the convenience of operation.

[0030] To achieve the "drill-free installation" function of the bathtub grab rail, this embodiment also includes a connecting rod 32, a movable clamp 31, and a clamping screw 33. Specifically, the connecting rod 32 is integrally bent into an "L" shape, consisting of a horizontally extending sliding part 321 and a vertically extending mounting part 322. The sliding part 321 is horizontally slidably connected to the bottom of the support 1 via a slide rail or slide groove structure (for example, a long strip slide groove is opened at the bottom of the support 1, and the sliding part 321 slides into the long strip slide groove to form a horizontal sliding pair), ensuring that the connecting rod 32 can reciprocate in the horizontal direction (perpendicular to the edge of the bathtub). The movable clamp 31 is connected to the mounting part 322 of the connecting rod 32, and a fixed clamp 12 protruding from its bottom surface is formed on the lower part of the support 1. Through the horizontal sliding of the connecting rod 32 relative to the support 1, the movable clamp 31 and the fixed clamp 12 can clamp against each other, thereby clamping the edge of the bathtub (such as the upper edge of the bathtub) to achieve drill-free installation.

[0031] Secondly, the front end of the clamping screw 33 passes through the support 1 and the sliding part 321 in sequence, and is threadedly engaged with both (both the support 1 and the sliding part 321 have internal threaded holes, and the external thread of the clamping screw 33 matches the internal thread of the internal threaded hole). When the screw is rotated, according to the principle of thread transmission, the sliding part 321 will move horizontally along the screw axis (for example, when the screw is rotated clockwise, the sliding part 321 moves towards the fixed clamp 12, and when rotated counterclockwise, it moves away). The knob part 331 at the tail end of the screw (with anti-slip texture on the surface) increases the force application area, and the user can rotate it directly with their fingers without the need for tools such as wrenches, further improving installation efficiency.

[0032] Secondly, the movable clamp 31 is pivotally connected to the end of the mounting part 322 of the connecting rod 32 via a horizontal axis (the horizontal axis is perpendicular to the mounting part 322, and the movable clamp 31 can swing up and down around the axis by 5°-10°). This design allows the movable clamp 31 to adapt to the tilt angle of the bathtub edge (such as when part of the bathtub edge is sloped), ensuring that the clamping surface is in full contact with the bathtub edge and avoiding loosening of the clamp due to angle mismatch.

[0033] In this embodiment, rubber anti-slip pads 5 are attached to the clamping surfaces of the movable clamp 31 and the fixed clamp 12 to increase friction and prevent slippage after clamping; at the same time, rubber anti-slip pads 5 are also provided on the bottom surface of the support 1, which further enhances the overall stability after contacting the bathtub surface and prevents the handrail from shifting or flipping due to force during use.

[0034] In this embodiment, the armrest component 2 adopts a ring frame structure, which can provide multi-directional grip points compared with the traditional straight armrest, adapting to the user's needs for gripping from different angles (such as gripping the front side when getting out of the bathtub, and gripping the right side when entering from outside the bathtub). The ring structure has a more uniform force distribution and can withstand external forces from multiple directions.

[0035] In summary, the combination of "lifting and adjusting structure + adjustable clamping components + optimized detail design" achieves height adjustment, rapid installation, stable support, and wide compatibility.

[0036] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. A bathtub grab bar, comprising a support (1), a grab bar component (2), and at least one movable fastener (4), characterized in that: The support (1) has at least one sleeve (11) with an upward opening at the top. The handrail (2) has a vertically extending and slidingly fitted lifting tube (21) at the bottom. The sleeve (11) has an annular groove on its circumference. The sleeve (11) has a positioning hole (111) in the area where the annular groove is located. The lifting tube (21) has several locking holes (211) arranged vertically at intervals on its circumference. Any locking hole (211) can be horizontally aligned with the positioning hole (111). One end of the buckle (4) is pivotally connected to the annular groove through a preset vertical shaft. The buckle (4) can swing around the vertical shaft to be inserted into or removed from the annular groove. The buckle (4) has a locking pin (41) protruding on its inner side that can be sequentially inserted into the positioning hole (111) and the locking hole (211).

2. A bathtub grab bar according to claim 1, characterized in that: The shape of the movable fastener (4) matches the annular groove and is arc-shaped, and the other end of the movable fastener (4) is formed with a hand lever part (42) protruding from the outer periphery of the annular groove.

3. A bathtub grab bar according to claim 1, characterized in that: It also includes a connecting rod (32), a movable clamp (31), and a clamping screw (33). The connecting rod (32) is integrally bent to form an "L"-shaped mounting part (322) and a sliding part (321). The sliding part (321) of the connecting rod (32) is slidably connected to the support (1) in the horizontal direction. The front end of the clamping screw (33) is threaded horizontally through and engaged with the support (1) and the sliding part (321) in sequence. The movable clamp (31) is connected to the mounting part (322) of the connecting rod (32). The lower part of the support (1) is formed with a fixed clamp (12) protruding from its bottom surface. As the connecting rod (32) slides horizontally relative to the support (1), the movable clamp (31) and the fixed clamp (12) are clamped together.

4. A bathtub grab bar according to claim 3, characterized in that: The movable clamp (31) is pivotally connected to the mounting part (322) of the connecting rod (32) via a preset horizontal axis.

5. A bathtub grab bar according to claim 3, characterized in that: Anti-slip pads (5) are provided on the clamping surfaces of the movable clamp (31) and the fixed clamp (12).

6. A bathtub grab bar according to claim 5, characterized in that: The support (1) has an anti-slip pad (5) on its bottom surface.

7. A bathtub grab bar according to claim 3, characterized in that: The tail end of the clamping screw (33) is fixed with a knob (331).

8. A bathtub grab bar according to claim 1, characterized in that: The handrail component (2) has a ring frame structure.

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