Multi-angle adjustable electric control adjusting seat armrest

Abstract

This utility model relates to a multi-angle adjustable electrically controlled adjustable seat armrest, comprising: a vertical translation mechanism, including a first sliding component arranged longitudinally and driven to move up and down by a first drive mechanism; a front-back translation mechanism, including a second sliding component arranged laterally and driven to move back and forth by a second drive mechanism; a transition support, including a first connecting part and a second connecting part; and a lateral swing mechanism, including a telescopic drive mechanism; wherein the first drive mechanism, the second drive mechanism, and the telescopic drive mechanism are electrically controlled drive mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a multi-angle adjustable electronically controlled adjustable seat armrest. Background Technology

[0002] Currently, most forklift seat armrests on the market suffer from insufficient adjustment freedom, supporting only one or a combination of two of the following: height adjustment, forward / backward sliding, and lateral tilting. Most forklift seat armrests on the market use mechanical adjustment structures, which have low adjustability and pay little attention to the stability of the mechanism and the ergonomics of the operator, resulting in low practicality. Mechanically adjustable armrests are both laborious and lack a clear direction for force application in the confined space of the cab, making them somewhat inadequate in practical use.

[0003] Based on this, electrically adjustable armrests have also appeared on the market. For example, CN114919478A discloses a forklift seat with a multi-functional armrest. A switch control module is set on the front of the armrest, allowing for electrically adjustable lifting and forward / backward movement. However, it still has the following shortcomings: the armrest is raised and lowered by rotating two support rods around a fixed rotation center, resulting in a large volume of lifting structure. Furthermore, after each lifting and lowering adjustment, the relative position of the front end of the armrest changes synchronously, requiring additional adjustment of the armrest's forward / backward position. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a multi-angle adjustable electrically controlled seat armrest that can simultaneously achieve multi-angle electrically controlled adjustment of lifting, forward and backward movement, and lateral tilting within the confined space of a forklift seat armrest.

[0005] A multi-angle adjustable electrically controlled seat armrest, comprising:

[0006] The vertical translation mechanism includes a first sliding component arranged longitudinally. The first sliding component includes a first guide rail arranged longitudinally and a first slider slidably arranged on the first guide rail. The handrail is connected to the first sliding component through a transition support. A first driving mechanism drives the first slider to move relative to the first guide rail, thereby adjusting the handrail up and down.

[0007] The forward and backward translation mechanism includes a second sliding component arranged laterally. The second sliding component includes a second guide rail arranged laterally and a second slider slidably arranged on the second guide rail. The forward and backward translation mechanism is arranged between the transition support and the handrail. The second driving mechanism drives the second slider to move relative to the second guide rail, thereby adjusting the handrail forward and backward.

[0008] The transition support includes a first connecting part and a second connecting part. The first connecting part is connected to the vertical translation mechanism, and the second connecting part is connected to the front and rear translation mechanism. One end of the first connecting part is hinged to the second connecting part to form a first hinge point.

[0009] The sway mechanism includes a telescopic drive mechanism. The fixed end of the telescopic drive mechanism is hinged to the first connecting part of the transition support, and the telescopic end of the telescopic drive mechanism is hinged to the second connecting part of the transition support. When the telescopic end of the telescopic drive mechanism moves, the second connecting part of the transition support rotates around the first hinge point as the rotation center, thereby driving the handrail to rotate up and down for adjustment.

[0010] The first drive mechanism, the second drive mechanism, and the telescopic drive mechanism are electrically controlled drive mechanisms.

[0011] Preferably, the first connecting part, the second connecting part, and the telescopic drive mechanism of the transition support form a triangular support.

[0012] Preferably, the first drive mechanism and / or the second drive mechanism include lead screws, which respectively drive the first sliding component and / or the second sliding component to move relative to each other.

[0013] Preferably, the first slider is mounted via a first mounting base, which includes a handrail mounting portion and a transverse connecting portion. The first slider is fixed to the handrail mounting portion. The transverse connecting portion is located below the first slide rail. The power output from the drive motor in the first drive mechanism is output to the lead screw after being reversed by the worm gear assembly. The lead screw in the first drive mechanism is connected to the first slide rail. The lead screw is arranged along the moving direction of the first slider and the first slide rail, and the lead screw and the first slider are located on opposite sides of the first slide rail.

[0014] Preferably, the lower part of the first slide rail is provided with a first limiting member, which provides a limit in the first sliding direction for the first slider; the first slide rail cooperates with the transverse connecting part to provide a limit in the second sliding direction for the first slider, and the first sliding direction and the second sliding direction are opposite directions.

[0015] Preferably, the telescopic drive mechanism is an electric push rod, which extends and retracts longitudinally.

[0016] Preferably, the handrail is equipped with an electric control switch corresponding to the vertical translation mechanism, the forward and backward translation mechanism, and the horizontal swing mechanism.

[0017] As a preferred option, the electric control switch uses a self-resetting button, with different raised dots on the front and back of the button's rocker.

[0018] Preferably, the forklift control module is located at the front of the handrail, and the forklift control module includes multiple control switches for controlling the forklift's movements.

[0019] In summary, by adopting the above-mentioned solution, this application can achieve adjustment of three degrees of freedom—up and down, forward and backward, and lateral—through electronic control within a confined forklift handle installation space, and the adjustment of the three degrees of freedom will not interfere with each other, making the adjustment structure reliable. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the seat and armrest mechanism of this application;

[0021] Figure 2 This is a schematic diagram of the handrail mechanism;

[0022] Figure 3 for Figure 2 A structural diagram from another angle;

[0023] Figure 4 for Figure 2 A structural diagram from another angle (the first slider is not shown);

[0024] Figure 5 This is a structural diagram of the seat and armrest mechanism from another angle.

[0025] Figure 6 , Figure 7 This is a diagram illustrating the height adjustment of the seat armrests;

[0026] Figure 8 , Figure 9 This is a diagram illustrating the lateral adjustment of the seat armrests;

[0027] Figure 10 , Figure 11 This is a diagram illustrating the forward and backward adjustment of the seat armrests.

[0028] Figure label:

[0029] Up-down translation mechanism 1, first slide rail 11, first limiting member 111, first slider 12, first drive mechanism 13, lead screw 131, lead screw seat 132, lifting mounting plate 133, first mounting base 15, handrail mounting base 14, first mounting base 15, handrail mounting part 151, lateral connecting part 152.

[0030] Forward and backward translation mechanism 2, second slide rail 21, second slider 22, second drive mechanism 23

[0031] Horizontal swing mechanism 3, telescopic drive mechanism 31, telescopic end 311, fixed end 312.

[0032] Transition support 4, first connecting part 41, second connecting part 42, first hinge point 43, second hinge point 44.

[0033] Electrical switch 5,

[0034] Forklift control module 6,

[0035] Handrail 7. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below.

[0037] This embodiment discloses a multi-angle adjustable electrically controlled adjustable seat armrest, including: a vertical translation mechanism 1, which drives the armrest 7 to adjust vertically; a horizontal translation mechanism 2, which drives the armrest 7 to adjust horizontally; and a lateral tilting mechanism 3, which drives the armrest 7 to rotate vertically around a rotation center. The aforementioned vertical translation mechanism 1, horizontal translation mechanism 2, and lateral tilting mechanism 3 are electrically controlled drive mechanisms, using a motor to provide driving force. Therefore, precise adjustment in three degrees of freedom—vertical, horizontal, and lateral—can be achieved through electrical control, significantly improving operational flexibility and comfort.

[0038] like Figure 1-5 As shown, the vertical translation mechanism 1 of this embodiment includes a first sliding component arranged longitudinally. The first sliding component includes a first slide rail 11 arranged longitudinally and a first slider 12 slidably disposed on the first slide rail 11. The armrest 7 is connected to the first sliding component through a transition support 4. A first drive mechanism 13 drives the first slider 12 to move relative to the first slide rail 11, thereby adjusting the armrest 7 up and down. The first drive mechanism 13 is an electrically controlled drive mechanism, powered by a drive motor to drive the first slider 12 to slide along the first slide rail 11. One of them has a fixed relative height with the seat, and the other has a fixed relative height with the armrest 7. Thus, the relative movement of the first slider 12 and the first slide rail 11 can drive the armrest 7 to rise and fall relative to the seat, thereby achieving the vertical adjustment of the armrest 7.

[0039] like Figure 2As shown, the armrest in this embodiment includes an armrest mounting base 14. One end of the armrest mounting base 14 is fixed to the seat, and the other end of the armrest mounting base 14 is folded upwards. The vertical translation mechanism 1 is installed on the folded portion of the armrest mounting base 14, and the vertical translation mechanism 1 serves as a support rod for the armrest 7. The first slider 12 is mounted via a first mounting base 15. The first mounting base 15 includes an armrest mounting portion 151 and a transverse connecting portion 152. The armrest mounting portion 151 is fixed to the folded portion of the armrest mounting base 14, and the first slider 12 is fixed to the armrest mounting portion 151. The transverse connecting portion 152 is located below the first slide rail 11, and the first drive mechanism 13 is installed on the transverse connecting portion 152. In a preferred embodiment, both ends of the transverse connecting portion 152 are bent to form a U-shape to increase the overall strength of the transverse connecting portion 152. The lower part of the first slide rail 11 is provided with a first limiting member 111, which provides a limit in a first sliding direction for the first slider 12; the first slide rail 11 cooperates with the transverse connecting part 152 to provide a limit in a second sliding direction for the first slider 12, and the first sliding direction and the second sliding direction are opposite directions. This allows for limiting the relative movement of the first slider 12 and the first slide rail 11 in two directions. In this embodiment, the first drive mechanism 13 includes a drive motor, a worm gear reducer, and a lead screw 131, which drives the lifting mounting plate 133 to slide along the first slide rail 11. The drive motor and worm gear are installed at the lower end of the transverse connection part 152; the power output by the drive motor is reversed by the worm gear reducer and then output to the lead screw 131. The lead screw 131 in the first drive mechanism 13 is connected to the first slide rail 11. The lead screw 131 is arranged along the moving direction of the first slider 12 and the first slide rail 11, and the lead screw 131 and the first slider 12 are respectively located on opposite sides of the first slide rail 11.

[0040] like Figure 2 As shown, in this embodiment, one end of the lead screw 131 is fixed to the first slide rail 11 via a lead screw seat 132. The lead screw seat 132 and the first slide rail 11 are fixed together by a lifting mounting plate 133, so that the lead screw 131 can drive the first slide rail 11 to move relative to the first slider 12. The lead screw drive makes the vertical translation mechanism 1 more stable during movement, which is suitable for the application scenario of forklift seat armrests. In addition, the worm gear structure has a good self-locking function, which can provide reliable support for the armrest 7. Preferably, the first slide rail 11 is provided with a groove, and the first slider 12 is provided with rollers. The first slider 12 and the first slide rail 11 are slidably connected by at least two rollers cooperating with the groove. The guide cooperation between the at least two rollers and the groove makes the lifting and lowering adjustment process of the first slider 12 and the first slide rail 11 more stable and improves the reliability of the structure.

[0041] Combination Figure 5As shown, the forward and backward translation mechanism 2 includes a second sliding component arranged laterally. The second sliding component includes a second slide rail 21 arranged laterally and a second slider 22 slidably disposed on the second slide rail 21. The forward and backward translation mechanism 2 is disposed between the transition support 4 and the handrail 7. The second drive mechanism 23 drives the second slider 22 to move relative to the second slide rail 21, thereby adjusting the handrail 7 forward and backward. In this embodiment, the arrangement of the second slider 22 and the second slide rail 21 is the same as that of the first slider 12 and the first slide rail 11, except that the second slide rail 21 is arranged along the forward and backward direction of the handrail 7. The second drive mechanism 23 can be the same as the first drive mechanism 13, using a screw drive. In this scheme, the second drive mechanism 23 includes a drive motor, a worm gear reducer, and a screw, which drives the slider to slide along the second slide rail 21.

[0042] The second sliding assembly includes a second mounting base and a second limiting member disposed on both sides of the second slider 22 in the sliding direction. The second mounting base and the second limiting member respectively provide sliding limits for the second slider 22. The second drive mechanism 23 is mounted on the second mounting base. Referring to the installation method of the first drive mechanism 13, similarly, the drive motor and worm gear reducer in the second drive mechanism 23 are mounted on the second mounting base and disposed opposite to the second slide rail 21. The lead screw is driven by the motor to move the second slider 22 along the second slide rail 21. In this embodiment, the second slide rail 21 is disposed at the bottom of the handrail 7, and the second slider 22 is mounted on the transition support 4, so that the handrail 7 can be adjusted back and forth by the relative movement of the second slider 22 and the second slide rail 21.

[0043] Combination Figure 5 As shown, the transition support 4 in this embodiment includes a first connecting part 41 and a second connecting part 42. The first connecting part 41 is connected to the vertical translation mechanism 1, and the second connecting part 42 is connected to the front and rear translation mechanism 2. One end of the first connecting part 41 is hinged to the second connecting part 42, and the hinge point is used as the first hinge point 43.

[0044] The lateral swing mechanism 3 is mounted on the transition support 4. The lateral swing mechanism 3 includes a telescopic drive mechanism 31, which is an electrically controlled mechanism. This telescopic drive mechanism 31 includes a telescopic end 311, which is capable of telescopic movement. The fixed end 312 of the telescopic drive mechanism 31 is hinged to the first connecting part 41 of the transition support 4. The telescopic end 311 of the telescopic drive mechanism 31 is hinged to the second connecting part 42 of the transition support 4, serving as the second hinge point 44. When the telescopic end 311 of the telescopic drive mechanism 31 moves, the second connecting part 42 of the transition support 4 rotates around the first hinge point 43, causing the handrail 7 to rotate up and down for adjustment. Thus, the transition support 4 connects the vertical translation mechanism 1, the horizontal translation mechanism 2, and the lateral swing mechanism 3, and the simple structure avoids mutual interference between the three degrees of freedom of adjustment.

[0045] In this embodiment, the first connecting part 41, the second connecting part 42, and the telescopic drive mechanism 31 form a triangular support. This arrangement allows the telescopic drive mechanism 31 to extend and retract, driving the second connecting part 42 to rotate the connected front-to-back translation mechanism 2 and the handrail 7 around the first rotation center, thus achieving lateral adjustment of the handrail 7. Furthermore, the telescopic drive mechanism 31 has a self-locking structure, which, combined with the triangular structure, provides reliable support for the handrail 7.

[0046] In one specific embodiment, such as Figure 5 As shown, the first connecting part 41 is fixed on the first slide rail 11. The first connecting part 41 is inclined so that there is a front-to-back positional deviation between the first hinge point 43 and the second hinge point 44, so that the extension and retraction of the telescopic end 311 can drive the second connecting part 42 to rotate around the first hinge end. The second connecting part 42 is arranged along the front-to-back direction of the handrail 7, and the telescopic drive mechanism 31 is arranged approximately longitudinally, so that the first connecting part 41, the second connecting part 42, and the telescopic mechanism 31 form a stable triangular support. In a specific embodiment, the lateral swing range of the handrail 7 is limited by the extension and retraction distance of the telescopic end 311 of the telescopic drive mechanism 31.

[0047] In this embodiment, the telescopic drive mechanism 31 is an electric push rod, which extends and retracts longitudinally. The electric push rod is existing technology and can be directly purchased. It generally includes a motor, transmission gears, and a push rod. The power output by the motor is transmitted to the push rod through the transmission gears to drive its extension and retraction. Self-locking can be achieved through appropriate motor and gear selection. The electric push rod occupies little space; the transition support 4 and the entire electric push rod can be arranged at the lower end of the handrail 7, resulting in a compact structure.

[0048] The forklift control module 6 is located at the front of the handrail 7. The forklift control module 6 includes multiple control switches for controlling the forklift's movements, specifically including several reserved switches for controlling the forklift or forks to move forward and backward, lift and lower, and perform emergency stops. Because the forklift control module 6 is located at the front of the handrail 7, there is no need for an additional control console, further reducing the space required in the cab. Furthermore, the driver can operate the forklift control module 6 simply by resting their hands on the handrail 7, making operation convenient.

[0049] The handrail 7 is equipped with electrical switches 5 corresponding to the vertical translation mechanism 1, the forward and backward translation mechanism 2, and the lateral swing mechanism 3, respectively. Specifically, the first drive mechanism 13, the second drive mechanism 23, and the telescopic drive mechanism 31 are connected to the forklift's controller, and the aforementioned electrical switches 5 are connected to the controller, thereby realizing electrical control of the three degrees of freedom of movement of the handrail 7. These electrical switches 5 can be centrally located at the front of the handrail 7 along with the forklift control module 6. In other preferred embodiments, the electrical switches 5 controlling the adjustment of the handrail 7 according to the aforementioned three degrees of freedom are located on the side of the handrail 7, separately from the forklift control module 6, to prevent accidental activation after adjustment. The electrical switches 5 are self-resetting buttons with different raised points on the front and back of the rocker arm for easy blind operation.

[0050] like Figure 6 and Figure 7 As shown, when the handrail 7 needs to be adjusted in height, the forward and backward translation mechanism 2 and the lateral movement mechanism 3 maintain their current positions, the first drive mechanism 13 is activated, and the lead screw 131 drives the first sliding component to move, thereby realizing the up and down adjustment of the handrail 7.

[0051] like Figure 8 and Figure 9 As shown, when the handrail 7 needs to be rotated and adjusted, the vertical translation mechanism 1 and the front-back translation mechanism 2 maintain their current positions, and the telescopic drive mechanism 31 is activated. Its telescopic end 311 extends and retracts, causing the handrail 7 to rotate around the first hinge point 43 as the rotation center for lateral adjustment.

[0052] like Figure 10 and Figure 11 As shown, when the handrail 7 needs to be adjusted forward and backward, the vertical translation mechanism 1 and the horizontal swing mechanism 3 maintain their current positions, the second drive mechanism 23 is activated, and the lead screw drives the second sliding component to move, thereby realizing the forward and backward movement adjustment of the handrail 7.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-angle adjustable electrically controlled adjustment armrest, characterized in that, include: The vertical translation mechanism includes a first sliding component arranged longitudinally. The first sliding component includes a first guide rail arranged longitudinally and a first slider slidably arranged on the first guide rail. The handrail is connected to the first sliding component through a transition support. A first driving mechanism drives the first slider to move relative to the first guide rail, thereby adjusting the handrail up and down. The forward and backward translation mechanism includes a second sliding component arranged laterally. The second sliding component includes a second guide rail arranged laterally and a second slider slidably arranged on the second guide rail. The forward and backward translation mechanism is arranged between the transition support and the handrail. The second driving mechanism drives the second slider to move relative to the second guide rail, thereby adjusting the handrail forward and backward. The transition support includes a first connecting part and a second connecting part. The first connecting part is connected to the vertical translation mechanism, and the second connecting part is connected to the front and rear translation mechanism. One end of the first connecting part is hinged to the second connecting part to form a first hinge point. The sway mechanism includes a telescopic drive mechanism. The fixed end of the telescopic drive mechanism is hinged to the first connecting part of the transition support, and the telescopic end of the telescopic drive mechanism is hinged to the second connecting part of the transition support. When the telescopic end of the telescopic drive mechanism moves, the second connecting part of the transition support rotates around the first hinge point as the rotation center, thereby driving the handrail to rotate up and down for adjustment. The first drive mechanism, the second drive mechanism, and the telescopic drive mechanism are electrically controlled drive mechanisms.

2. A multi-angle adjustable electric control armrest of claim 1, wherein, The first connecting part, the second connecting part of the transition support, and the telescopic drive mechanism form a triangular support.

3. A multi-angle adjustable electrically controlled armrest according to claim 2, characterized in that, The first drive mechanism and / or the second drive mechanism include lead screws, which respectively drive the first sliding component and / or the second sliding component to move relative to each other.

4. A multi-angle adjustable electrically controlled armrest according to claim 2, characterized in that, The first slider is mounted via a first mounting base, which includes a handrail mounting portion and a transverse connecting portion. The first slider is fixed to the handrail mounting portion. The transverse connecting portion is located below the first slide rail. The power output from the drive motor in the first drive mechanism is reversed by the worm gear assembly and then output to the lead screw. The lead screw in the first drive mechanism is connected to the first slide rail. The lead screw is arranged along the moving direction of the first slider and the first slide rail, and the lead screw and the first slider are respectively located on opposite sides of the first slide rail.

5. A multi-angle adjustable electrically controlled armrest according to claim 4, characterized in that, The lower part of the first slide rail is provided with a first limiting member, which provides a limit in the first sliding direction for the first slider; the first slide rail cooperates with the transverse connecting part to provide a limit in the second sliding direction for the first slider, and the first sliding direction and the second sliding direction are opposite directions.

6. A multi-angle adjustable electrically controlled armrest of claim 1, wherein, The telescopic drive mechanism is an electric push rod, which extends and retracts longitudinally.

7. A multi-angle adjustable electrically controlled armrest of claim 1, wherein, The handrail is equipped with an electric control switch corresponding to the vertical translation mechanism, the forward and backward translation mechanism and the horizontal swing mechanism.

8. A multi-angle adjustable power control armrest according to claim 6, wherein, The electric control switch uses a self-resetting button, and the rocker arm of the button has different raised dots on the front and back.

9. A multi-angle adjustable power control armrest according to claim 1, wherein, The forklift control module is located at the front of the handrail, and the forklift control module includes multiple control switches for controlling the forklift's movements.

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