A toilet handrail with automatic folding function

Abstract

The utility model provides a bathroom handrail with automatic folding function, comprising a base, a handrail flipably arranged on the base, and also comprising a driving mechanism for driving the handrail to flip, a sensor for providing an electrical signal to the driving mechanism, and at least one travel switch; the driving mechanism comprises a motor, a transmission gear set connected to the motor for transmitting power to the handrail; wherein a driven gear in the transmission gear set connected to the rotating shaft of the handrail is provided with at least one anti-rotation groove adapted to the top rod of the travel switch; the automatic flipping of the handrail is realized by the arrangement of the driving mechanism and the sensor; and the precise control of the flipping position of the handrail and the control of the forward and reverse rotation of the handrail are realized by the arrangement of the anti-rotation groove and the travel switch; the handrail can be flipped and folded without taking up space, and the operation is simple and convenient, and the independent operation is more suitable for the elderly and vulnerable groups.

Description

Technical Field

[0001] The utility model relates to the technical field of bathroom appliances, in particular to a bathroom handrail with an automatic folding function. Background Art

[0002] Toilet grab bars are assistive devices that are primarily used to help people with limited mobility, the elderly, pregnant women or people with disabilities provide additional support and balance when using the toilet. These grab bars are usually fixed on both sides of the toilet to reduce the risk of falling and increase the user's sense of security.

[0003] However, most of the toilet handrails on the market currently require users to manually flip them up and down to use them. Since these handrails need to withstand a large supporting force, they are usually made of heavier materials, which is very inconvenient for the elderly or special groups to use without the help of others. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a bathroom handrail with an automatic folding function to solve the above-mentioned problem.

[0005] The utility model adopts the following scheme:

[0006] The present application provides a bathroom handrail with an automatic folding function, comprising a base, a handrail flipably arranged on the base, a driving mechanism for driving the handrail to flip, a sensor for providing an electrical signal to the driving mechanism, and at least one travel switch; the driving mechanism comprises a motor, and a transmission gear set connected to the motor for transmitting power to the handrail; wherein a driven gear in the transmission gear set connected to the rotating shaft of the handrail is provided with at least one anti-rotation groove adapted to the top rod of the travel switch.

[0007] Furthermore, the sensor is an infrared sensor, which is arranged on the armrest.

[0008] Furthermore, the driven gear connected to the armrest shaft is provided with two anti-rotation grooves, and two travel switches adapted to the two anti-rotation grooves.

[0009] Furthermore, the transmission gear set includes a driving gear connected to the motor, a first driven gear meshed with the driving gear, and a second driven gear meshed with the first driven gear and connected to the armrest shaft; half of the outer circumference of the second driven gear has meshing teeth, and the other half of the outer circumference is provided with the stop groove.

[0010] Furthermore, the transmission gear set includes a first bevel gear connected to the motor, and a second bevel gear meshing with the first bevel gear and connected to the armrest shaft; the anti-rotation groove is provided on the outer circumference of the second bevel gear.

[0011] Furthermore, the motor is movably or detachably arranged on the base so that the driving gear can be engaged with or separated from the driven gear.

[0012] Furthermore, an overload protection device is also included, which includes a driving block, a spring and a connecting piece; the driving block is connected to the rotating shaft of the armrest and is placed on the inner side of the driven gear, and a connecting groove and a guide groove are provided on its side; the spring provides a force for the connecting piece to connect the connecting piece to the connecting groove.

[0013] Furthermore, a support member is provided below the armrest.

[0014] Furthermore, a rotating base is provided at one end of the armrest, a rotating shaft connecting piece is provided on the rotating base, and the rotating shaft is provided on the rotating shaft connecting piece through a bearing.

[0015] Furthermore, the mainboard of the driving mechanism is provided with current overload protection and / or flip timeout protection, and when the current exceeds a set value and / or the flip time of the armrest exceeds a set time, the driving mechanism stops running.

[0016] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0017] The present application provides a bathroom handrail with an automatic folding function, which realizes automatic flipping of the handrail through the setting of a driving mechanism and a sensor; and realizes precise control of the flipping position of the handrail and the control of the forward and reverse rotation of the handrail through the setting of a stop groove and a travel switch; it can be flipped and folded without taking up space, is simple and convenient to operate, and can be operated independently, making it more suitable for the elderly and vulnerable groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of a toilet handrail structure with an automatic folding function according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of a toilet handrail with automatic folding function according to an embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional structural diagram of a driving mechanism of a toilet handrail with an automatic folding function according to an embodiment of the utility model;

[0022] Figure 4 It is a cross-sectional enlarged structural schematic diagram of a handrail portion of a toilet handrail with an automatic folding function according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the base structure of a toilet handrail with an automatic folding function according to an embodiment of the utility model;

[0024] Figure 6 This is a structural schematic diagram of a toilet handrail with an automatic folding function in an embodiment of the utility model when it is in a vertical state;

[0025] Figure 7 This is a structural schematic diagram of a toilet handrail with an automatic folding function in a horizontal state according to an embodiment of the utility model;

[0026] Figure 8 It is a structural schematic diagram of a transmission gear set when a toilet handrail with an automatic folding function is in a vertical state according to an embodiment of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of a transmission gear set when a toilet handrail with automatic folding function is in a horizontal state according to an embodiment of the utility model;

[0028] Fig.10 It is a structural schematic diagram of a transmission gear set when a toilet handrail with an automatic folding function is rotating in an embodiment of the utility model;

[0029] Fig.11 This is a schematic diagram of the structure of a toilet handrail overload protection device with automatic folding function according to an embodiment of the utility model;

[0030] Fig.12 It is a partial structural diagram of an assembly of a toilet handrail overload protection device with an automatic folding function according to an embodiment of the utility model;

[0031] Fig.13 This is a schematic diagram of the structure of a driving block of a toilet handrail overload protection device with an automatic folding function according to an embodiment of the utility model;

[0032] Fig.14 This is a structural schematic diagram of another embodiment of the utility model, a toilet handrail with an automatic folding function in a vertical state;

[0033] Fig.15 This is a structural schematic diagram of another embodiment of the utility model, a toilet handrail with an automatic folding function in a horizontal state;

[0034] Fig.16 It is a structural schematic diagram of a transmission gear set when a toilet handrail with an automatic folding function is in a vertical state in another embodiment of the utility model;

[0035] Fig.17 It is a structural schematic diagram of a transmission gear set when a toilet handrail with automatic folding function is in a horizontal state in another embodiment of the utility model;

[0036] Fig.18 It is a structural schematic diagram of a transmission gear set when a toilet handrail with an automatic folding function is rotating in another embodiment of the utility model;

[0037] Fig.19 This is another embodiment of the utility model, a bathroom handrail structure with automatic folding function Figure 1 ;

[0038] Fig. 20 This is a schematic cross-sectional structure diagram of a toilet handrail with an automatic folding function according to another embodiment of the utility model;

[0039] Fig.21 This is another embodiment of the utility model, a bathroom handrail structure with automatic folding function Figure 2 ;

[0040] Fig. 22 The utility model is a schematic diagram of the base structure of a toilet handrail with automatic folding function according to another embodiment of the present invention.

[0041] Icons: base 1, armrest 2, motor 3, driving gear 4, first driven gear 5, second driven gear 6, first travel switch 7, second travel switch 8, first stop groove 9, second stop groove 10, bearing 11, rotating base 12, shaft connector 13, shaft 14, infrared sensor 15, support 16, power supply 17, rotating table 18, driving block 19, spring 20, connector 21, connecting groove 22, guide groove 23, first bevel gear 24, second bevel gear 25, motor base 26, guide groove 27, bolt 28, limit column 29. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0043] Example

[0044] Combination Figures 1 to 18 As shown, this embodiment provides a bathroom handrail 2 with an automatic folding function, comprising a base 1, a handrail 2 flippably arranged on the base 1, and also comprising a driving mechanism for driving the handrail 2 to flip, a sensor for providing an electrical signal to the driving mechanism, and at least one travel switch; the driving mechanism comprises a motor 3, and a transmission gear set connected to the motor 3 for transmitting power to the handrail 2; wherein the driven gear in the transmission gear set connected to the rotating shaft 14 of the handrail 2 is provided with at least one anti-rotation groove adapted to the top rod of the travel switch.

[0045] The automatic flipping of the armrest 2 is realized by setting the driving mechanism and the sensor; and the precise control of the flipping position of the armrest 2 and the control of the forward and reverse rotation of the armrest 2 are realized by setting the anti-rotation groove and the travel switch; it can be flipped and folded without taking up space, and the operation is simple and convenient, and it can be operated independently, which is more suitable for the elderly and vulnerable groups.

[0046] Specifically, in this embodiment, Figures 1 to 5As shown, the base 1 is fixed to the walls on both sides of the toilet by screws or bolts, and a base rotating table 18 for installing the handrail 2 is provided thereon. A power supply 17 for powering the motor 3 and the sensor is provided on the base 1. The sensor is an infrared sensor 15, which is arranged in a through hole in the middle of the handrail 2. The transmission gear set includes a driving gear 4 connected to the motor 3, a first driven gear 5 meshing with the driving gear 4, and a second driven gear 6 meshing with the first driven gear 5 and connected to the handrail shaft 14; the gear ratio in the transmission gear set is 1:2; half of the outer circumference of the second driven gear 6 has meshing teeth, and the other half of the outer circumference is provided with the anti-rotation groove. In this embodiment, two anti-rotation grooves are provided on the driven gear connected to the handrail shaft 14, as well as two travel switches adapted to the two anti-rotation grooves. The first travel switch 7 and the second travel switch 8 are used to control the forward and reverse rotation of the handrail 2. As shown Figures 6 to 10 As shown, the armrest 2 is in the initial state when it is vertical. At this time, the top rod of the first stroke switch 7 is placed in the first anti-rotation groove 9, and it is in the disconnected state. When the main board of the driving mechanism receives the electrical signal of the infrared sensor 15, the motor 3 works to drive the armrest 2 to flip down, that is, rotate counterclockwise. At this time, the first stroke switch 7 and the second stroke switch 8 are both in the closed state; when the top rod of the second stroke switch 8 falls into the second anti-rotation groove 10, it is in the disconnected state, and the motor 3 stops working. At this time, the armrest 2 is in the horizontal state; when the main board of the driving mechanism receives the electrical signal of the infrared sensor 15 again, the motor 3 works to drive the armrest 2 to flip up, that is, rotate clockwise. At this time, the first stroke switch 7 and the second stroke switch 8 are both in the closed state. When the top rod of the first stroke switch 7 falls into the first anti-rotation groove 9, it is in the disconnected state, and the motor 3 stops working. At this time, the armrest 2 returns to the initial vertical state. By independently detecting forward and reverse rotation through two travel switches, the judgment of the program is more accurate, the control of the software is relatively simple, and the forward and reverse rotation of the armrest 2 can be more accurately controlled.

[0047] A rotating base 12 is provided at one end of the handrail 2, and a rotating shaft connecting member 13 is provided on the rotating base 12. The rotating shaft 14 is provided on the rotating shaft connecting member 13 through a bearing 11, and is provided on a rotating platform 18 on the base 1. The friction between the rotating shaft 14 and the base 1 is greatly reduced, and the noise generation is reduced. A supporting member 16 is also provided below the handrail 2. When the handrail 2 is turned down to a horizontal state, the supporting member 16 abuts against the lower end of the base 1, so that the handrail 2 has better supporting strength.

[0048] In this embodiment, if Figures 11 to 13As shown, there is also an overload protection device, which includes a driving block 19, a spring 20 and a connecting member 21; the driving block 19 is connected to the rotating shaft 14 of the handrail 2 and is placed on the inner side of the driven gear, and a connecting groove 22 and a guide groove 23 are provided on its side; the spring 20 provides a force for the connecting member so that the connecting member 21 is connected to the connecting groove 22. When the load of the second driven gear 6 is less than or equal to the rated load, the connecting member 21 drives the driving block 19 to make the gear set rotate normally, and when the load is greater than the rated load, the connecting member 21 will be compressed, the internal spring 20 will be compressed, the connecting member 21 will shrink and disengage from the driving block 19, the second driven gear 6 starts to idle, and then the connecting member 21 enters the outward guide groove 23 provided on the driving block 19, under the action of the guide groove 23, the second driven gear 6 will disengage outward and disconnect from the first driven gear 5, thereby avoiding damage caused by overload of the motor 3.

[0049] Furthermore, the mainboard of the driving mechanism is also provided with current overload protection and flip timeout protection. When the current exceeds the set value, and the flip time of the armrest 2 exceeds the set time, the driving mechanism stops running, forming multiple overload protections. Of course, it can also be set that when the armrest 2 flips up or down, if an object blocks the armrest 2 at the end of the operation, the armrest 2 will automatically stop running, avoiding the risk of children accidentally putting their hands in the gap between the armrest 2 and the base 1 and being pinched.

[0050] In other embodiments, Figures 14 to 18 As shown, only one travel switch can also be used. Similarly, when the armrest 2 is in a vertical state, it is the initial state. At this time, the top rod of the travel switch is placed in the first anti-rotation groove 9, and it is in a disconnected state. When the main board of the driving mechanism receives the electrical signal of the infrared sensor 15, the motor 3 works to drive the armrest 2 to flip down, that is, rotate counterclockwise. When the top rod of the travel switch falls into the second anti-rotation groove 10, it is in a disconnected state, and the motor 3 stops working. At this time, the armrest 2 is in a horizontal state, and the situation of the armrest 2 flipping up is the same, that is, the travel switch is closed and then disconnected as a signal, thereby controlling the forward and reverse rotation of the armrest 2.

[0051] Of course, the transmission gear set includes a first bevel gear 24 connected to the motor 3, and a second bevel gear 25 meshing with the first bevel gear 24 and connected to the armrest shaft 14; the second bevel gear 25 is provided with the anti-rotation groove on the outer circumference. The overall volume of the armrest 2 can be greatly reduced to make the product more beautiful.

[0052] Preferably, the motor is movably or detachably arranged on the base 1 so that the driving gear can be engaged with or separated from the driven gear. Figures 19 to 22As shown, a guide groove 27 is provided on the base 1, and the motor 3 is detachably provided on the motor seat 26; the motor seat 26 is slidably provided on the guide groove 27, and the rear end of the motor seat 26 is fixed to the base 1 by a bolt 28; when a power outage or an abnormality occurs to the motor and the main board, the bolt 28 can be loosened to move the motor seat 26 so that the first bevel gear 24 and the second bevel gear 25 are separated, so that the handrail can be manually flipped and used normally. A limiting column 29 can also be provided on the base 1 to prevent the motor seat 26 from falling off the base when moving.

[0053] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Claims

1. A toilet handrail with automatic folding function, comprising a base, and a handrail which can be flipped and arranged on the base, characterized in that: It also includes a driving mechanism for driving the armrest to flip, a sensor for providing an electrical signal to the driving mechanism, and at least one travel switch; the driving mechanism includes a motor and a transmission gear set connected to the motor for transmitting power to the armrest; wherein the driven gear in the transmission gear set connected to the rotating shaft of the armrest is provided with at least one anti-rotation groove adapted to the top rod of the travel switch.

2. The toilet handrail with automatic folding function according to claim 1, characterized in that: The sensor is an infrared sensor, which is arranged on the armrest.

3. The toilet handrail with automatic folding function according to claim 1, characterized in that: The invention comprises two anti-rotation grooves arranged on a driven gear connected with the armrest rotating shaft, and two travel switches adapted to the two anti-rotation grooves.

4. The toilet handrail with automatic folding function according to claim 1, characterized in that: The transmission gear set includes a driving gear connected to the motor, a first driven gear meshing with the driving gear, and a second driven gear meshing with the first driven gear and connected to the armrest shaft; half of the outer circumference of the second driven gear has meshing teeth, and the other half of the outer circumference is provided with the anti-rotation groove.

5. The toilet handrail with automatic folding function according to claim 1, characterized in that: The transmission gear set includes a driving gear connected to the motor, and a driven gear meshed with the driving gear and connected to the armrest shaft; the driving gear and the driven gear are both bevel gears.

6. The toilet handrail with automatic folding function according to claim 4 or 5, characterized in that: The motor is movably or detachably arranged on the base so that the driving gear can be engaged with or separated from the driven gear.

7. The toilet handrail with automatic folding function according to claim 1, characterized in that: It also includes an overload protection device, which includes a driving block, a spring and a connecting piece; the driving block is connected to the rotating shaft of the armrest and is placed on the inner side of the driven gear, and a connecting groove and a guide groove are provided on its side; the spring provides a force for the connecting piece to connect the connecting piece to the connecting groove.

8. The toilet handrail with automatic folding function according to claim 1, characterized in that: A supporting piece is also arranged below the handrail.

9. The toilet handrail with automatic folding function according to claim 1, characterized in that: A rotating base is arranged at one end of the handrail, a rotating shaft connecting piece is arranged on the rotating base, and the rotating shaft is arranged on the rotating shaft connecting piece through a bearing.

10. The toilet handrail with automatic folding function according to claim 1, characterized in that: The mainboard of the driving mechanism is provided with current overload protection and / or flip timeout protection. When the current exceeds the set value and / or the flip time of the armrest exceeds the set time, the driving mechanism stops running.

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