Suction cup handrail

Abstract

The utility model provides a kind of suction cup handrail, it is related to bathroom structure technical field.The handrail component with the suction cup component of being provided with and the indicating component being set on the handrail component, the indicating component includes the indicator stand being set in the side of the suction cup component;Control shaft group with contact lever is arranged in the indicator stand;Indicator with indicating mark is connected with the control shaft group;The outer end of the contact lever is movably arranged in the bottom surface of the suction cup component;Elastic reset piece is connected between the indicator and the indicator stand;When the outer end of the contact lever moves to the bottom surface of the suction cup component, the control shaft group is adapted to be positively moved and rotated along the axial direction of contact lever, to drive the indicating mark of the indicator to rotate and switch to second indicating state;Elastic reset piece can drive the indicator to reset to switch to first indicating state.The stability and accuracy of the indicating component are improved by the scheme.

Description

Technical Field

[0001] This utility model relates to the field of bathroom structure technology, and more specifically, to a suction cup handrail. Background Technology

[0002] Suction cup handrails are favored by home consumers due to their ease of installation and lack of wall damage. Existing suction cup devices typically use lever-type auxiliary accessories to attach the suction cup to the wall, offering a more secure hold compared to the previous manual squeezing method. However, lever-type suction cup devices have three significant drawbacks: First, users cannot visually determine whether the suction cup has achieved effective adhesion, relying solely on subjective experience; second, it is impossible to monitor the weakening of the suction force during use; and most importantly, there is no effective warning mechanism when a single suction cup of the suction cup safety handrail becomes loose, greatly increasing the risk of users losing their balance and falling.

[0003] Existing suction cup handrails with indicator functions mainly adopt two mechanical structures: one is a linkage transmission structure, whose transmission components are prone to mechanical wear, leading to indicator failure; the other is a swing block structure, as shown in the patent with publication number 201173242Y. Although this structure achieves the reset function through a torsion spring, it has problems such as insensitive switching of indicator state and poor reset accuracy in actual use. Utility Model Content

[0004] The purpose of this application is to provide a suction cup armrest that has the advantages of being able to intuitively display the suction cup adsorption status, achieving sensitive switching between dual states, and having a stable and reliable structure.

[0005] The present invention adopts the following solution: A suction cup armrest includes an armrest assembly with a suction cup and an indicator assembly disposed on the armrest assembly. The indicator assembly includes an indicator plate holder disposed on the side of the suction cup assembly; a control shaft assembly with a contact rod and an indicator plate with an indicator mark connected to the control shaft assembly are disposed within the indicator plate holder; the outer end of the contact rod is movably inserted through the bottom surface of the suction cup assembly; an elastic reset member is connected between the indicator plate and the indicator plate holder; when the outer end of the contact rod moves inward toward the bottom surface of the suction cup assembly, the control shaft assembly is adapted to move and rotate in the forward direction along the axial direction of the contact rod to drive the indicator mark of the indicator plate to rotate and switch to a second indicator state; when the elastic reset member drives the indicator plate to reset, the indicator mark of the indicator plate rotates in the reverse direction to switch to a first indicator state, and the indicator plate drives the control shaft assembly to move and rotate in the reverse direction along the axial direction of the contact rod, and moves the outer end of the contact rod toward the outside of the bottom surface of the suction cup assembly.

[0006] Furthermore, this application also proposes a drive unit with a first arc-shaped stepped surface and a contact rod connected to the drive unit; a second arc-shaped stepped surface is formed on the indicator; and the control shaft assembly and the indicator are connected in contact with each other through the first arc-shaped stepped surface and the second arc-shaped stepped surface.

[0007] Furthermore, this application also proposes that the bottom end of the contact rod is configured as a spherical structure, and the outer side of the upper end is formed with a concave cylindrical step for fixed connection with the drive unit through secondary injection molding.

[0008] Furthermore, this application also proposes that the elastic reset element is a double torsion spring; a first square groove is formed on the indicator base for connecting one of the fixed straight sections of the double torsion spring; and a second square groove is provided on the indicator for connecting the other fixed straight section of the double torsion spring.

[0009] Furthermore, this application also proposes that the handrail assembly includes a handrail body and mounting bases disposed at both ends of the handrail body; the mounting bases are formed with a first mounting portion and a second mounting portion, the first mounting portion is used to install a suction cup assembly, the second mounting portion is used to install an indicator assembly, and a fixed shaft is formed in the second mounting portion to pass through the indicator and control shaft assembly, so that the indicator, control shaft assembly and indicator base are kept concentric, and an indicator window that cooperates with the indicator sign is provided on the second mounting portion.

[0010] Furthermore, this application also proposes that the exterior of the indicator base is provided with an inverted snap-fit ​​structure for engaging with the slot in the second mounting part, and that an arc-shaped groove is formed on the indicator base to provide a travel for rotational switching of the indicator.

[0011] Furthermore, this application proposes that the sign is cylindrical, with a partition having a shaft hole inside to divide the sign into an indicating part and a connecting part; wherein, the inner wall of the connecting part has a second arc-shaped stepped surface with the same rotation direction on opposite sides; the top surface of the indicating part is provided with an indicating mark, and a stop suitable for moving within an arc-shaped groove is formed on the outer wall of the indicating part to limit the rotation angle of the sign through the arc-shaped groove; the indicating mark includes a green marking part and a red marking part, when in a first indicating state, the red marking part of the indicating mark exposes the indicating window of the second mounting part to indicate that it is in a non-working state; when in a second indicating state, the green marking part of the indicating mark exposes the indicating window of the second mounting part to indicate that it is in a working state.

[0012] Furthermore, this application also proposes that a top cover is provided on the side of the armrest body away from the suction cup assembly, and an anti-slip sheet is formed on the top surface of the top cover by secondary injection molding; and a groove structure is formed on the side of the armrest body facing the suction cup assembly to accommodate human fingers.

[0013] Furthermore, this application also proposes that the suction cup assembly includes an operating part disposed on the outside of the armrest body and a suction cup group installed in the first mounting part. The suction cup group includes a suction cup integrally formed by secondary injection molding and a rectangular suction cup shaft. The rectangular suction cup shaft is installed on the first mounting part by a pin. The operating member is hinged to the first mounting part, and the operating member is provided with a rectangular groove to connect to the suction cup shaft. By rotating the operating member, the suction cup group can be driven to move up and down in the first mounting part.

[0014] Furthermore, this application also proposes that a tapered spring, narrow at the top and wide at the bottom, be provided between the suction cup assembly and the inner top surface of the first mounting part.

[0015] Beneficial effects: As can be seen from the above, the suction cup armrest and its indicator assembly provided in this application include an armrest assembly with a suction cup assembly and an indicator assembly disposed on the armrest assembly. By controlling the synergistic effect of the shaft group and the elastic reset member, the bidirectional rotation switching of the indicator mark is realized. It can automatically trigger a visual warning signal when the suction cup adsorption state changes. It has the advantages of being able to intuitively display the suction cup adsorption state, realize sensitive switching between two states, and have a stable and reliable structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a suction cup armrest according to an embodiment of the present invention; Figure 2 This is an exploded structural diagram of a suction cup armrest according to an embodiment of the present invention; Figure 3 This is a cross-sectional structural diagram of the indicator component of a suction cup armrest according to an embodiment of the present invention; Figure 4 This is a cross-sectional structural diagram of the suction cup assembly and indicator assembly of a suction cup armrest according to an embodiment of the present utility model; Figure 5 This is a cross-sectional schematic diagram of an indicator component of a suction cup armrest according to an embodiment of the present invention; Figure 6 This is an exploded view of the indicator component of a suction cup armrest according to an embodiment of the present invention; Figure 7 This is a schematic diagram of one end of a suction cup armrest according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the other end of an indicator sign for a suction cup armrest according to an embodiment of this utility model; Figure 9 This is a schematic diagram of a suction cup armrest sign holder according to an embodiment of the present utility model; Reference numerals: Handrail assembly 1, handrail body 11, mounting base 12, first mounting part 121, second mounting part 122, indicator window 123, fixed shaft 124, top cover 13, anti-slip plate 14, suction cup assembly 2, suction cup group 21, rectangular suction cup shaft 211, conical spring 22, pin 23, operating component 24, rectangular groove 25, indicator assembly 3, indicator sign 31, second arc-shaped step surface 311, partition 312, connecting part 313, indicator part 314, second square groove 315, stop block 316, indicator sign seat 32, arc-shaped groove 321, first square groove 322, control shaft group 33, drive part 331, first arc-shaped step surface 3311, contact rod 332, double torsion spring 34. Detailed Implementation

[0017] Combination Figures 1 to 9 As shown, this embodiment provides a suction cup armrest, including an armrest assembly 1 with a suction cup assembly 2 and an indicator assembly 3 disposed on the armrest assembly 1. The indicator assembly 3 includes an indicator plate holder 32 disposed on the side of the suction cup assembly 2; a control shaft assembly 33 with a contact rod 332 and an indicator plate 31 with an indicator mark connected to the control shaft assembly 33 are disposed inside the indicator plate holder 32; the outer end of the contact rod 332 is movably inserted through the bottom surface of the suction cup assembly 2; an elastic reset member is connected between the indicator plate 31 and the indicator plate holder 32; when the suction cup is engaged... When the outer end of the contact rod 332 moves into the bottom surface of the suction cup assembly 2, the control shaft assembly 33 is adapted to move and rotate in the forward direction along the axial direction of the contact rod 332 to drive the indicator mark of the indicator plate 31 to rotate and switch to the second indicator state; when the elastic reset member drives the indicator plate 31 to reset, the indicator mark of the indicator plate 31 rotates in the reverse direction to switch to the first indicator state, and the indicator plate 31 drives the control shaft assembly 33 to move and rotate in the reverse direction along the axial direction of the contact rod 332, and causes the outer end of the contact rod 332 to move outward toward the bottom surface of the suction cup assembly 2.

[0018] The indicator base 32 is a fixed base that supports the moving components, and can be made of injection-molded engineering plastic housing. The control shaft assembly 33 is a transmission component that converts linear motion into rotational motion, and can include a drive unit 331 with a first arc-shaped stepped surface 3311, which converts axial displacement into rotational torque through the contact engagement of the arc-shaped stepped surface. The contact rod 332 is an element that transmits the displacement of the suction cup, and its bottom end can be set as a spherical structure to reduce frictional resistance, for example, it can be made of stainless steel. The elastic reset element is an energy storage element that provides reset force, for example, a double torsion spring 34 connecting the indicator 31 and the base, which automatically returns to the initial position after the external force is released.

[0019] Specifically, when the suction cup assembly 2 adheres to the wall, the contact rod 332 is pressed and moves into the seat of the indicator base 32. As the drive unit 331 of the control shaft assembly 33 advances axially, its arc-shaped stepped surface slides relative to the corresponding structure of the indicator 31, forcing the indicator 31 to rotate around the axis. At this time, the green indicator portion is revealed through the indicator window 123 on the housing, indicating that the suction cup is in working condition. When the suction force weakens and the suction cup assembly 21 detaches from the wall, the contact rod 332 is no longer under pressure, and the double torsion spring 34 releases its stored elastic potential energy, pushing the indicator 31 to rotate in the opposite direction and reset. This rotational action, through the reverse movement of the control shaft assembly 33, causes the contact rod 332 to extend outward, revealing the red indicator portion to indicate suction failure.

[0020] This application achieves precise conversion between displacement and rotational motion through the synergistic effect of the helical contact surface and the elastic reset component. When the suction cup's adsorption state changes, a mechanical linkage mechanism automatically switches the visible indicator to accurately reflect the suction cup's actual working status. When the suction cup is fully adsorbed, the contact rod 332 moves inward, triggering a green indicator display; when the adsorption is released, the elastic reset device drives a red warning indicator to automatically pop out. This two-way interlocking mechanism effectively avoids the risk of false indications, helping users to promptly grasp the handrail's safety status.

[0021] Combination Figures 4 to 9 As shown, in this embodiment, the control shaft assembly 33 includes a drive unit 331 with a first arc-shaped stepped surface 3311 and a contact rod 332 connected to the drive unit 331. A second arc-shaped stepped surface 311 is formed on the indicator plate 31. The control shaft assembly 33 and the indicator plate 31 are connected through the first arc-shaped stepped surface 3311 and the second arc-shaped stepped surface 311. The first arc-shaped stepped surface 3311 refers to a protruding structure with continuously changing curvature formed on the surface of the drive unit 331. Specifically, it can be implemented using a stepped curved surface with a circular arc transition. This structure can form a stable surface contact with the second arc-shaped stepped surface 311. The second arc-shaped stepped surface 311 refers to another arc-shaped stepped surface formed on the indicator plate 31 that is complementary to the first arc-shaped stepped surface 3311. When the two contact, they form a mutually interlocking transmission interface. The connection between the contact rod 332 and the drive unit 331 is to fix the two into one through a secondary injection molding process. For example, a concave cylindrical step is machined at the upper end of the contact rod 332, and the injection molding material fills the step to form a mechanical interlocking structure.

[0022] When the contact rod 332 moves axially under external force, the first arc-shaped step surface 3311 of the drive unit 331 slides relative to the second arc-shaped step surface 311 of the indicator 31. Because the arc-shaped step surface has continuously changing curvature, a rotational component is generated when the contact point moves along the curved surface trajectory, thus converting the linear motion of the contact rod 332 into the rotational motion of the indicator 31. Under the action of the elastic reset member, the contact area of ​​the step surface automatically adjusts the contact angle during reverse rotation, ensuring the smoothness of the transmission process. For example, during the downward pressing of the contact rod 332, the protruding part of the first step surface pushes the groove edge of the second step surface, causing the indicator 31 to rotate clockwise; during reset, the torque of the double torsion spring 34 causes the second step surface to push the first step surface in the opposite direction, causing the contact rod 332 to rebound. The line contact design of the arc-shaped step surface increases the effective contact area. At the same time, the self-guiding characteristic of the curved surface transmission avoids the motion interference problems existing in traditional hinged structures, such as maintaining a stable transmission relationship even when the rotation angle exceeds 15 degrees. Effective control of contact surface wear is achieved.

[0023] In a preferred embodiment, the bottom end of the contact rod 332 is configured as a spherical structure, and the outer side of its upper end forms a concave cylindrical step for fixed connection with the drive unit 331 via secondary injection molding. The spherical structure refers to the arc-shaped surface at the bottom of the contact rod 332. The concave cylindrical step refers to the annular recessed area machined on the outer side of the upper end of the contact rod 332; this structure increases the contact area between the contact rod 332 and the drive unit 331. The secondary injection molding connection involves injecting the material of the drive unit 331 into the concave cylindrical step area to form an interlocking structure. This can be achieved through staged injection molding using thermoplastic materials. This process ensures a gapless, rigid connection between the contact rod 332 and the drive unit 331. The spherical structure at the bottom of the contact rod 332 prevents jamming due to uneven contact surfaces. The interlocking structure formed by secondary injection molding effectively resists shear forces, ensuring stable and reliable linkage between the control shaft assembly 33 and the indicator 31, significantly improving connection strength.

[0024] Combination Figures 7 to 9As shown, in this embodiment, the elastic reset component is a double torsion spring 34. A first square groove 322 is formed in the indicator base 32 to connect one of the fixed straight sections of the double torsion spring 34, and a second square groove 315 is provided on the indicator 31 to connect the other fixed straight section of the double torsion spring 34. The double torsion spring 34 refers to a helical spring with two independent fixed straight sections, which are connected to the indicator base 32 and the indicator 31 respectively to achieve a bidirectional elastic reset function. The first square groove 322 refers to a square groove structure provided on the indicator base 32, which can be formed by injection molding or machining, and is used to limit the position of one of the fixed straight sections of the double torsion spring 34 to prevent it from shifting under force. The second square groove 315 refers to a square groove structure provided on the indicator 31, which can be formed by injection molding or machining, and is used to limit the position of the other fixed straight section of the double torsion spring 34 to ensure the stability of the force transmission direction during the elastic reset process. The two fixed straight sections of the double torsion spring 34 are respectively embedded in the first square groove 322 and the second square groove 315. When the contact rod 332 is subjected to external force and drives the control shaft assembly 33 to move, the indicator 31 rotates and compresses the double torsion spring 34. At this time, one torsion section of the double torsion spring 34 accumulates elastic potential energy. When the external force disappears, the double torsion spring 34 releases its potential energy and acts on the indicator plate seat 32 and the indicator plate 31 through the two fixed straight sections respectively, driving the indicator plate 31 to rotate in the opposite direction to reset, and at the same time driving the contact rod 332 to return to its original position. By using the double torsion spring 34 in conjunction with the fixing method of the square groove, not only is bidirectional elastic reset achieved, but the limiting effect of the square groove also ensures the spring is fixed stably, avoiding loosening of the connection due to vibration or long-term use, and significantly improving the reliability of the elastic reset component.

[0025] Combination Figures 1 to 4 As shown, the suction cup armrest described in this embodiment includes an armrest assembly 1 with a suction cup assembly 2 and an indicator assembly 3 disposed on the armrest assembly 1. The armrest assembly 1 includes an armrest body 11 and mounting bases 12 disposed at both ends of the armrest body 11. A first mounting portion 121 and a second mounting portion 122 are formed on the mounting base 12. The first mounting portion 121 is used to mount the suction cup assembly 2, and the second mounting portion 122 is used to mount the indicator assembly 3. A fixed shaft 124 is formed in the second mounting portion 122 to pass through the indicator 31 and the control shaft assembly 33, so that the indicator 31, the control shaft assembly 33 and the indicator base 32 are kept concentric. An indicator window 123 that cooperates with the indicator mark is provided on the second mounting portion 122.

[0026] The mounting base 12 and the armrest body 11 are integrally formed, creating an independent mounting space. The first mounting part 121 is a cavity structure for supporting the suction cup assembly 2, facilitating its positioning and fixation. The second mounting part 122 is a cavity structure for accommodating the indicator assembly 3, ensuring the coaxiality of all parts of the indicator assembly 3 via a fixed shaft 124. The fixed shaft 124 is a rigid support member passing through the indicator sign 31 and the control shaft group 33, used to limit radial displacement and maintain rotational stability. The indicator window 123 is an opening area for observing the indicator markings, which can be implemented using a transparent or perforated shell structure, allowing users to intuitively identify the suction cup status. Here, the second mounting part 122 can be located on one side of the first mounting part 121. Furthermore, the second mounting parts 122 on both mounting bases 12 are located on the same side of the armrest body 11, facilitating simultaneous observation.

[0027] The fixed shaft 124 inside the second mounting part 122 passes through the shaft holes of the indicator 31 and the control shaft assembly 33, ensuring that the two remain concentric during rotation switching and avoiding jamming or wear caused by eccentricity. The indicator window 123 corresponds to the position of the indicator mark. When the suction cup assembly 2 is in the suction or release state, the indicator 31 rotates to reveal the different colored markings in the window, thereby informing the user of the current status. Combination Figures 7 to 9 As shown, in this embodiment, the sign holder 32 is provided with an inverted snap-fit ​​structure on its exterior for engaging with the slot in the second mounting portion 122. An arc-shaped groove 321 is formed on the sign holder 32 to provide a travel distance for the indicator to rotate and to limit its movement. The inverted snap-fit ​​structure refers to a protruding structure on the outer wall of the sign holder 32, which can be implemented using an injection-molded elastic snap-fit. Its engagement with the slot in the inner wall of the second mounting portion 122 enables quick assembly and prevents detachment. The arc-shaped groove 321 refers to a curved opening on the side wall of the sign holder 32, the length and curvature of which match the rotation angle of the sign 31, thereby limiting the rotation range of the indicator. The slot refers to a recessed structure formed on the inner wall of the second mounting portion 122, which can be implemented using a rectangular or trapezoidal groove. Its shape complements the inverted snap-fit ​​structure to achieve a stable engagement. The indicator base 32 is fixed to the second mounting part 122 by a snap-fit ​​structure. During assembly, the snap-fit ​​structure deforms under pressure and embeds itself into the slot to lock, eliminating the need for additional connecting parts such as screws. The stop block 316 is embedded in the arc-shaped groove 321 and slides along the groove as the indicator 31 rotates. When the stop block 316 contacts both ends of the groove, the maximum rotation angle is reached, thereby limiting the switching stroke of the indicator. The snap-fit ​​structure enables tool-less assembly, reducing assembly complexity; the cooperation between the arc-shaped groove 321 and the stop block 316 can precisely control the rotation angle of the indicator, preventing misalignment or reset failure due to excessive rotation.

[0028] Combination Figures 7 to 8 As shown, in this embodiment, the indicator 31 is cylindrical. Inside the cylindrical indicator 31, a partition 312 with a shaft hole is formed to divide the indicator 31 into an indicator part 314 and a connecting part 313. The inner wall of the connecting part 313 has a second arc-shaped stepped surface 311 with the same direction of rotation on opposite sides. An indicator mark is provided on the top surface of the indicator part 314. A stop block 316 suitable for moving in the arc-shaped groove 321 is formed on the outer wall of the indicator part 314. The indicator mark includes a green mark and a red mark. When in the first indicator state, the red mark of the indicator mark is exposed through the indicator window 123 of the second mounting part 122 to indicate that it is in a non-working state and the operating member 24 is in the open state. When in the second indicator state, the green mark of the indicator mark is exposed through the indicator window 123 of the second mounting part 122 to indicate that it is in a working state and the operating member 24 is in the closed state.

[0029] The cylindrical indicator 31 refers to a component with a cylindrical shell structure, which can be achieved through injection molding. Its internal space is divided into an indicator section 314 and a connecting section 313 by a partition 312, which respectively carry the markings and transmit mechanical motion. The partition 312 refers to a transverse partition set inside the cylinder, which can be integrally formed by a mold. The shaft hole passes through the center of the partition 312 to achieve a fit with the fixed shaft 124. The second arc-shaped stepped surface 311 refers to the spiral protrusions distributed on the inner wall of the connecting section 313, which are used to contact the drive section 331 of the control shaft assembly 33 and transmit rotational torque. The stop block 316 refers to the protrusion extending outward from the outer wall of the indicator section 314, which can be integrally formed with the indicator section 314 by injection molding. Its movement trajectory is limited by the boundary range of the arc-shaped groove 321. The green marking section and the red marking section refer to the two color areas respectively coated or embedded on the top surface of the indicator section 314, which can be achieved by two-color injection molding or labeling process, and are used to display different statuses through the window. The areas of the red and green marking sections can be set between 45 and 120 degrees. For example, the angle range of the arc groove 321 is set to 50 degrees, and the areas of the red and green marking sections are also set to 50 degrees respectively.

[0030] When the contact rod 332 is compressed and retracts, the control shaft assembly 33, during its ascent, drives the second arc-shaped step surface 311 of the connecting part 313 to rotate, causing the cylindrical indicator 31 to rotate around the fixed shaft 124. The stop block 316 slides along the arc-shaped groove 321 until it is limited, at which point the green indicator is fully exposed outside the indicator window 123, indicating that the suction cup is in the adsorption state. When the external force is released, the double torsion spring 34 pushes the indicator 31 to rotate in the opposite direction, and the stop block 316 moves in the opposite direction along the arc-shaped groove 321 to another limiting point. The red indicator occupies the window area, indicating that the suction cup has returned to the non-adsorption state. During this process, the shaft hole of the partition part 312 always maintains coaxial cooperation with the fixed shaft 124 to ensure the stability of the rotation action, while the two second arc-shaped step surfaces 311 on the left and right sides ensure uniform torque transmission and avoid unilateral wear.

[0031] Through the above technical solution, the dual-color markings of the cylindrical indicator 31 achieve status visualization through rotation switching, allowing users to directly determine the suction cup's adsorption status by observing the window color changes. The cooperation between the stop 316 and the arc-shaped groove 321 avoids the indication deviation caused by gaps in traditional swing structures, ensuring that the marking position accurately corresponds to the operating status. The symmetrical design of the second arc-shaped stepped surface 311 makes torque transmission smoother and extends the service life of the control shaft assembly 33.

[0032] Combination Figures 1 to 2 As shown, in this embodiment, a top cover 13 is provided on the side of the armrest body 11 away from the suction cup assembly 2. An anti-slip sheet 14 is formed on the top surface of the top cover 13 through secondary injection molding. A groove structure is formed on the side of the armrest body 11 facing the suction cup assembly 2 to accommodate human fingers and provide an anti-slip function. The groove structure refers to a recessed area on the surface of the armrest body 11, the shape of which can be designed as wavy or arc-shaped to match the natural curvature of human fingers, thereby increasing the contact area and improving grip stability. The anti-slip sheet 14 is combined with the top cover 13 on the side of the armrest body 11 away from the suction cup assembly 2 through a secondary injection molding process, covering the top surface area to form an anti-slip surface. The groove structure on the side of the armrest body 11 facing the suction cup assembly 2 is formed by molding. The groove depth can be controlled within the range of 2-5 mm and is evenly distributed along the length direction. When the user grips the armrest, their fingers are embedded in the groove, preventing slippage. This improves anti-slip performance while avoiding surface wear, and the groove structure guides the fingers to the correct grip position, reducing the risk of operational errors.

[0033] In this embodiment, the suction cup assembly 2 includes an operating part disposed on the outside of the armrest body 11 and a suction cup group 21 installed in the first mounting part 121. The suction cup group 21 includes a suction cup integrally formed by secondary injection molding and a rectangular suction cup shaft 211. The rectangular suction cup shaft 211 is mounted on the first mounting part 121 by a pin 23. The operating member 24 is hinged to the first mounting part 121, and the operating member 24 is provided with a rectangular groove 25 to connect to the suction cup shaft. By rotating the operating member 24, the suction cup group 21 can be driven to move up and down in the first mounting part 121. Here, the rectangular groove 25 is set as a protruding rectangular support. The end of the rectangular support is connected to the top surface of the second mounting part, and the operating member 24 is hinged to the second mounting part 122. Thus, the rectangular support forms the fulcrum when the operating member 24 rotates, so that the rectangular suction cup shaft can be driven to move up and down synchronously when the operating member 24 rotates.

[0034] The suction cup and rectangular suction cup shaft 211, formed by two injection molding processes, refer to the process of combining the suction cup material and the suction cup shaft into a single structure. Specifically, this can be achieved by first injection molding the rectangular suction cup shaft 211 and then injection molding an elastic material onto its surface. This structure eliminates assembly gaps and improves sealing performance. The rectangular groove 25 refers to a recessed structure on the operating component 24 that matches the cross-section of the rectangular suction cup shaft 211. This structure ensures a transmission connection between the operating component 24 and the suction cup shaft without relative rotation. The pin 23 installation refers to the cylindrical shaft connection between the suction cup shaft and the base.

[0035] Specifically, the operating part is exposed on the side of the armrest body 11 for easy manual operation. When the operating part 24 rotates, its rectangular groove 25 drives the rectangular suction cup shaft 211 to rotate synchronously. Since the suction cup shaft is confined within the first mounting part 121, the rotational motion is converted into the vertical displacement of the suction cup assembly 21 along the pin shaft 23, thereby controlling the adsorption or separation of the suction cup from the contact surface. The suction cup and suction cup shaft integral structure formed by secondary injection molding maintain consistent deformation during vertical movement, avoiding sealing failure due to component separation. By rotating the operating part 24 to drive the suction cup shaft to move linearly, the entire suction cup produces a uniform vertical displacement, which, combined with the integrated structure of secondary injection molding, effectively maintains the flatness of the sealing contact surface at the edge of the suction cup.

[0036] Combination Figure 4 As shown, preferably, a tapered spring 22, narrow at the top and wide at the bottom, is provided between the suction cup assembly 21 and the inner top surface of the first mounting part 121. The tapered spring 22 is installed between the suction cup assembly 21 and the inner top surface of the first mounting part 121. When the operating member 24 moves the suction cup assembly 21 upwards, the spring is compressed and generates an elastic reaction force, which helps to push the suction cup assembly 21 downwards to reset. When the operating member 24 is released, the spring drives the suction cup assembly 21 back to its initial position through its rebound force.

[0037] Through the above-described embodiments, the indicator component 3 has better stability and can better control the rotation angle of the indicator mark.

[0038] It should be understood that the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0039] The accompanying drawings used in the above description of the embodiments only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. A suction cup armrest, comprising an armrest assembly with a suction cup component and an indicator component disposed on the armrest assembly, characterized in that, The indicator component includes an indicator plate holder disposed on the side of the suction cup component; The indicator base is provided with a control shaft assembly with a contact rod and an indicator plate with an indicator mark connected to the control shaft assembly; the outer end of the contact rod is movably inserted through the bottom surface of the suction cup assembly; an elastic reset member is connected between the indicator plate and the indicator base; When the outer end of the contact rod moves into the bottom surface of the suction cup assembly, the control shaft assembly is adapted to move and rotate in the axial direction of the contact rod to drive the indicator mark of the sign to rotate and switch to the second indicator state. When the elastic reset member drives the indicator to reset, the indicator mark of the indicator rotates in the opposite direction to switch to the first indicator state, and the indicator drives the control shaft group to move and rotate in the opposite direction along the axial direction of the contact rod, and moves the outer end of the contact rod toward the bottom surface of the suction cup assembly.

2. The suction cup armrest according to claim 1, characterized in that, The control shaft assembly includes a drive unit with a first arc-shaped stepped surface and a contact rod connected to the drive unit; the indicator has a second arc-shaped stepped surface; the control shaft assembly and the indicator are connected in contact through the first arc-shaped stepped surface and the second arc-shaped stepped surface.

3. The suction cup armrest according to claim 2, characterized in that, The bottom end of the contact rod is configured as a spherical structure, and the outer side of the upper end is formed with a concave cylindrical step for fixed connection with the drive unit through secondary injection molding.

4. The suction cup armrest according to claim 1, characterized in that, The elastic reset element is a double torsion spring; a first square groove is formed on the indicator plate base for connecting one of the fixed straight sections of the double torsion spring; a second square groove is provided on the indicator plate for connecting the other fixed straight section of the double torsion spring.

5. The suction cup armrest according to claim 2, characterized in that, The handrail assembly includes a handrail body and mounting bases disposed at both ends of the handrail body; the mounting bases have a first mounting portion and a second mounting portion, the first mounting portion being used to mount the suction cup assembly, the second mounting portion being used to mount the indicator assembly, and a fixed shaft being formed in the second mounting portion to pass through the indicator and control shaft assembly, so that the indicator, control shaft assembly and indicator base are kept concentric; the second mounting portion is provided with an indicator window that cooperates with the indicator mark.

6. The suction cup armrest according to claim 5, characterized in that, The indicator base is provided with an inverted snap structure on the outside for snapping into the slot of the second mounting part, and an arc-shaped groove is formed on the indicator base to provide a travel for the rotation switching of the indicator.

7. The suction cup armrest according to claim 6, characterized in that, The sign is cylindrical, with a partition containing a shaft hole dividing it into an indicator section and a connecting section. The inner wall of the connecting section has second arc-shaped stepped surfaces with the same rotation direction on opposite sides. The top surface of the indicator section has the indicator mark, and the outer wall of the indicator section has a stop block adapted to move within the arc-shaped groove to limit the rotation angle of the sign. The indicator mark includes a green marking section and a red marking section. In a first indicator state, the red marking section of the indicator mark protrudes from the indicator window of the second mounting section to indicate a non-working state. In a second indicator state, the green marking section of the indicator mark protrudes from the indicator window of the second mounting section to indicate a working state.

8. The suction cup armrest according to claim 5, characterized in that, The armrest body has a top cover on the side away from the suction cup assembly, and the top cover has an anti-slip sheet formed on the top surface by secondary injection molding; and the armrest body has a groove structure on the side facing the suction cup assembly to fit the human finger.

9. The suction cup armrest according to claim 5, characterized in that, The suction cup assembly includes an operating part disposed on the outside of the armrest body and a suction cup group installed in the first mounting part. The suction cup group includes a suction cup integrally formed by secondary injection molding and a rectangular suction cup shaft. The rectangular suction cup shaft is mounted on the first mounting part by a pin. The operating member is hinged to the second mounting part, and the operating member is provided with a rectangular groove to connect to the suction cup shaft. By rotating the operating member, the suction cup group can be driven to move up and down within the first mounting part.

10. The suction cup armrest according to claim 9, characterized in that, A tapered spring, narrow at the top and wide at the bottom, is provided between the suction cup assembly and the inner top surface of the first mounting part.

Images