Drive-by-wire handrail with angle adjusting function

Abstract

A drive-by-wire handrail with an angle adjusting function comprises a handrail plate, an inner supporting rod, an outer supporting cylinder, a plug pin assembly and a mounting base. The handrail plate is fixedly installed at the upper end of the inner supporting rod, and the inner supporting rod is vertically and slidably sleeved with the outer supporting cylinder. A rotating shaft is transversely arranged on the mounting seat, and a plurality of pin holes are formed in the upward rotating surface of the rotating shaft at intervals; a rotating cylinder is transversely arranged at the lower end of the outer supporting cylinder and rotationally installed on a rotating shaft. The plug pin assembly comprises a telescopic plug pin, the telescopic plug pin is installed in the lower end of the outer supporting cylinder, and the telescopic plug pin and the pin hole form a locking structure after extending out; the bolt assembly further comprises a pull wire, a spring tube and a pulling piece. The device has lifting and angle adjusting functions, and an angle adjusting button of the device is arranged on the armrest plate, so that operation of a user is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of seat armrests, in particular to a wire-controlled armrest with an angle adjustment function. Background Art

[0002] Today's users have an increasingly higher pursuit of seat comfort. The seats make adaptive adjustments based on the user's posture, so that the user can get the support effect provided by the seat in different postures, thereby obtaining a better experience.

[0003] The armrest of a seat is one of the important components for improving comfort. There are thousands of patents applied for armrests. Currently, common armrest patents are mainly aimed at height adjustment, such as patent CN201630705U - Retractable armrest of a seat. This type of patent mainly achieves the function of adjusting the armrest height by setting a telescopic structure of the armrest support rod, and does not further propose a solution for adjusting the armrest angle.

[0004] On the basis of adjusting the armrest height, further adding the function of adjusting the armrest angle can further improve the freedom of the armrest. Taking into account the user's convenience, the switch of the angle adjustment device needs to be set in a convenient position. Utility Model Content

[0005] In response to the above-mentioned defects, the purpose of the present invention is to provide a wire-controlled armrest with angle adjustment function. The device has lifting and angle adjustment functions, and the angle adjustment button of the device is set on the armrest plate to facilitate user operation.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A wire-controlled armrest with an angle adjustment function comprises an armrest plate, an inner support rod, an outer support tube, a latch assembly, and a mounting base; the armrest plate is fixedly mounted on the upper end of the inner support rod, and the inner support rod is vertically slidably sleeved in the outer support tube;

[0008] The mounting seat is provided with a rotating shaft in the transverse direction, and a rotating surface of the rotating shaft facing upward is provided with a plurality of spaced pin holes; the lower end of the outer support cylinder is provided with a rotating cylinder in the transverse direction, and the rotating cylinder is rotatably mounted on the rotating shaft;

[0009] The latch assembly includes a telescopic latch, which is installed inside the lower end of the outer support tube and forms a locking structure with the pin hole after the telescopic latch is extended;

[0010] The latch assembly also includes a pull wire, a spring tube and a pulling piece. The pulling piece is installed on the armrest plate. The two ends of the spring tube are respectively fixed to the outer support tube and the armrest plate. One end of the pull wire is fixed to the pulling piece. The pull wire passes through the spring tube and the outer support tube from top to bottom. The other end of the pull wire is fixed to the telescopic latch.

[0011] Preferably, it also includes a latch mounting seat, which is installed at the lower end of the outer support tube. A latch mounting cavity is provided in the center of the latch mounting seat, a wire passing hole is reserved at the rear end of the latch mounting cavity, and the rear end of the telescopic latch is fixed to the wire.

[0012] Preferably, the rotating shaft is provided with wave guide grooves protruding at positions corresponding to the plurality of pin holes;

[0013] The concave position of the wave guiding groove corresponds to the opening position of the pin hole one by one, and the pin mounting seat is installed with an elastic cone head, the horizontal direction of the elastic cone head corresponds to the wave guiding groove, and the head of the elastic cone head is in contact with the wave surface of the wave guiding groove;

[0014] The elastic cone head and the telescopic bolt extend and retract in the same direction, and the elastic cone head and the telescopic bolt are arranged side by side on the same plane in the horizontal direction.

[0015] Preferably, a recessed space is provided at a position of the rotating cylinder corresponding to the entire wave guiding groove, the recessed space is opened along the circumferential direction, and the angle range of the recessed space is twice that of the wave guiding groove.

[0016] Furthermore, it also includes a support tube shell, which is cylindrical and is mounted on the outside of the inner support rod. The upper end of the support tube shell is fixed to the lower surface of the armrest plate; the caliber of the support tube shell is not less than the outer diameter of the outer support tube.

[0017] Furthermore, the pulling member is horizontally rotatably mounted on the armrest plate via rotating shafts on both sides, and a trigger of the pulling member extends from the bottom of the armrest plate;

[0018] The upper end body of the inner support rod is provided with a spring tube accommodating recess. When the inner support rod and the outer support tube are in a retracted state, the spring tube is coiled in the spring tube accommodating recess.

[0019] A wire pulling hole is provided at the connection portion between the inner support rod and the armrest plate, and the wire is passed through the wire pulling hole and inserted into the spring tube.

[0020] Furthermore, the armrest plate is also provided with a translation component and a rotation component.

[0021] Furthermore, a telescopic stroke limiting device is provided between the inner support rod and the outer support tube.

[0022] One of the above technical solutions includes the following beneficial effects: the armrest proposed in this solution first realizes the function of adjusting the height through the inner support rod and the outer support cylinder structure, and on this basis, a rotating structure composed of a rotating shaft and a rotating cylinder is added to make the angle of the armrest plate adjustable; the purpose is to pull the telescopic pin through the pull wire of the pin assembly to lock and release the rotational relationship between the outer support cylinder and the rotating shaft, so as to achieve the effect of adjusting the rotation angle of the outer support cylinder; the characteristic of the solution is that the pull wire is sheathed in the spring tube, so that the pull wire is not affected by the change of the telescopic stroke of the inner support rod and the outer support cylinder, and the telescopic pin can always be pulled and released by the pull wire to realize the locking and release of the telescopic pin and the pin hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram after hiding the support tube shell, highlighting the inner support rod and outer support tube;

[0025] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the position of the latch installation cavity and the elastic cone head in one embodiment of the present utility model;

[0027] Figure 5 It is a structural schematic diagram of a wave guiding groove and a recessed space avoiding position in one embodiment of the utility model.

[0028] Among them: armrest plate 100, inner support rod 200, spring tube accommodating recessed position 210, outer support tube 300, rotating tube 310, recessed avoiding space 320, latch assembly 400, telescopic latch 410, pull wire 420, spring tube 430, pulling member 440, latch mounting seat 450, latch mounting cavity 451, elastic cone head 452, mounting seat 500, rotating shaft 510, pin hole 520, wave guide groove 530, support tube shell 600. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] like Figure 1-3As shown, a wire-controlled armrest with an angle adjustment function includes an armrest plate 100, an inner support rod 200, an outer support tube 300, a latch assembly 400, and a mounting base 500; the armrest plate 100 is fixedly mounted on the upper end of the inner support rod 200, and the inner support rod 200 is vertically slidably sleeved in the outer support tube 300;

[0031] The mounting base 500 is laterally provided with a rotating shaft 510, and the upward rotating surface of the rotating shaft 510 is provided with a plurality of spaced pin holes 520; the lower end of the outer support cylinder 300 is laterally provided with a rotating cylinder 310, and the rotating cylinder 310 is rotatably mounted on the rotating shaft 510;

[0032] The latch assembly 400 includes a telescopic latch 410, which is installed inside the lower end of the outer support tube 300. When the telescopic latch 410 is extended, it forms a locking structure with the pin hole 520;

[0033] The latch assembly 400 also includes a pull wire 420, a spring tube 430 and a pulling member 440. The pulling member 440 is installed on the armrest plate 100. The two ends of the spring tube 430 are respectively fixed to the outer support tube 300 and the armrest plate 100. One end of the pull wire 420 is fixed to the pulling member 440. The pull wire 420 passes through the spring tube 430 and the outer support tube 300 from top to bottom. The other end of the pull wire 420 is fixed to the telescopic latch 410.

[0034] The armrest proposed in this solution first realizes the function of adjusting the height through the structure of the inner support rod 200 and the outer support tube 300, and on this basis, a rotating structure composed of the rotating shaft 510 and the rotating tube 310 is added to make the angle of the armrest plate 100 adjustable; the purpose is to pull the telescopic latch 410 through the pull wire 420 of the latch assembly 400 to lock and release the rotation relationship between the outer support tube 300 and the rotating shaft 510, so as to achieve the effect of adjusting the rotation angle of the outer support tube 300; the characteristic of the solution is that the pull wire 420 is sleeved in the spring tube 430, so that the pull wire 420 is not affected by the change of the telescopic stroke of the inner support rod 200 and the outer support tube 300, and the telescopic latch 410 can always be pulled and released by the pull wire 420 to achieve The telescopic latch 410 and the pin hole 520 are locked and released; because the spring tube 430 is sleeved on the outside of the pull wire 420, and the spring tube 430 is set between the outer support tube 300 and the armrest board 100, when the armrest board 100 drives the inner support rod 200 to be fully pulled up along the outer support tube 300, the spring tube 430 is unfolded, and the total length of the pull wire remains unchanged as the spring tube is unfolded; when the armrest board 100 drives the inner support rod 200 to be fully retracted along the outer support tube 300, the spring tube 430 is wound, and the pull wire is wound along with the spring tube 430, and the total length of the pull wire remains unchanged. At this time, the telescopic latch 410 can still be pulled by the pull wire; the device has the functions of lifting and angle adjustment, and the angle adjustment button of the device is set on the armrest board to facilitate user operation.

[0035] like Figure 3-4 As shown, it also includes a pin mounting seat 450, and the pin mounting seat 450 is installed at the lower end of the outer support tube 300. A pin mounting cavity 451 is provided in the center of the pin mounting seat 450, and a hole for passing the pull wire 420 is reserved at the rear end of the pin mounting cavity 451. The rear end of the telescopic pin 410 is fixed to the pull wire 420.

[0036] The latch mounting seat is installed at the lower end of the outer support tube 300, and the mounting portion of the rotating tube 310 is wrapped and installed on the outside of the lower end of the outer support tube 300; the telescopic latch 410 is installed in the latch mounting cavity 451 to ensure the movement trajectory of the telescopic latch 410.

[0037] like Figure 4-5 As shown, the rotating shaft 510 is provided with a wave guiding groove 530 protruding at the position corresponding to the plurality of pin holes 520;

[0038] The recessed position of the wave guiding groove 530 corresponds to the opening position of the pin hole. The pin mounting seat 450 is mounted with an elastic cone head 452. The horizontal direction of the elastic cone head 452 corresponds to the wave guiding groove 530. The head of the elastic cone head 452 abuts against the wave surface of the wave guiding groove 530.

[0039] The elastic cone head 452 and the telescopic latch 410 extend and retract in the same direction, and the elastic cone head 452 and the telescopic latch 410 are arranged side by side in the same plane in the horizontal direction.

[0040] The wave guide groove 530 cooperates with the elastic cone head 452 to guide the rotation position of the outer support tube 300. When the elastic cone head 452 slides along the wave guide groove 530, it will stop at the recessed position of the wave guide groove 530. The recessed position of the wave guide groove 530 corresponds to the pin hole 520, so when the elastic cone head 452 is in a stopped state, the telescopic pin 410 corresponds to one of the pin holes 520. By controlling the pull wire 420, the telescopic pin 410 and the pin hole 520 can be locked and released.

[0041] like Figure 5 As shown, a recessed space 320 is provided at a position of the rotating cylinder 310 corresponding to the entire wave guiding groove 530 . The recessed space 320 is opened along the circumferential direction, and the angle range of the recessed space 320 is twice that of the wave guiding groove 530 .

[0042] The recessed space avoidance position 320 and the protruding wave guide groove 530 restrict the rotation range of the outer support tube 300 relative to the mounting seat 500. In this case, the wave guide groove 530 can only rotate within the range of the recessed space avoidance position 320, thereby limiting the rotation of the armrest within a practical range.

[0043] like Figure 3 As shown, it also includes a support tube shell 600, which is cylindrical and is mounted on the outside of the inner support rod 200. The upper end of the support tube shell 600 is fixed to the lower surface of the armrest board 100; the caliber of the support tube shell 600 is not less than the outer diameter of the outer support tube 300.

[0044] By providing the support tube shell 600 , the inner support rod 200 and the outer support tube 300 are shielded and covered.

[0045] like Figure 3 As shown, the pulling member 440 is horizontally rotatably mounted on the armrest plate 100 via the rotating shafts on both sides, and the trigger of the pulling member 440 extends from the bottom of the armrest plate 100;

[0046] The upper end body of the inner support rod 200 is provided with a spring tube accommodating recess 210. When the inner support rod 200 and the outer support tube 300 are in the contracted state, the spring tube 430 is coiled in the spring tube accommodating recess 210.

[0047] A wire hole is provided at the connection portion between the inner support rod 200 and the armrest plate 100 , and the wire 420 passes through the wire hole and enters the spring tube 430 .

[0048] When the inner support rod 200 and the outer support tube 300 are in a contracted state, the spring tube 430 will contract due to a decrease in total length. At this time, the spring tube 430 is stored in the spring tube accommodating recess 210 .

[0049] In addition, the armrest panel 100 is further provided with a translation component and a rotation component.

[0050] In addition, a telescopic stroke limiting device is provided between the inner support rod 200 and the outer support tube 300 .

[0051] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A wire-controlled armrest with angle adjustment function, characterized in that: It includes an armrest plate, an inner support rod, an outer support tube, a latch assembly and a mounting seat; the armrest plate is fixedly mounted on the upper end of the inner support rod, and the inner support rod is vertically slidably sleeved in the outer support tube; The mounting seat is provided with a rotating shaft in the transverse direction, and a rotating surface of the rotating shaft facing upward is provided with a plurality of spaced pin holes; the lower end of the outer support cylinder is provided with a rotating cylinder in the transverse direction, and the rotating cylinder is rotatably mounted on the rotating shaft; The latch assembly includes a telescopic latch, which is installed inside the lower end of the outer support tube and forms a locking structure with the pin hole after the telescopic latch is extended; The latch assembly also includes a pull wire, a spring tube and a pulling piece. The pulling piece is installed on the armrest plate. The two ends of the spring tube are respectively fixed to the outer support tube and the armrest plate. One end of the pull wire is fixed to the pulling piece. The pull wire passes through the spring tube and the outer support tube from top to bottom. The other end of the pull wire is fixed to the telescopic latch.

2. The wire-controlled armrest with angle adjustment function according to claim 1, characterized in that: It also includes a latch mounting seat, which is installed at the lower end of the outer support tube. A latch mounting cavity is provided in the center of the latch mounting seat, and a wire passing hole is reserved at the rear end of the latch mounting cavity. The rear end of the telescopic latch is fixed to the wire.

3. The wire-controlled armrest with angle adjustment function according to claim 2, characterized in that: The rotating shaft is provided with wave guide grooves at positions corresponding to the plurality of pin holes; The concave position of the wave guiding groove corresponds to the opening position of the pin hole one by one, and the pin mounting seat is installed with an elastic cone head, the horizontal direction of the elastic cone head corresponds to the wave guiding groove, and the head of the elastic cone head is in contact with the wave surface of the wave guiding groove; The elastic cone head and the telescopic bolt extend and retract in the same direction, and the elastic cone head and the telescopic bolt are arranged side by side on the same plane in the horizontal direction.

4. The wire-controlled handrail with angle adjustment function according to claim 3, characterized in that: A recessed space is provided at a position of the rotating cylinder corresponding to the entire wave guiding groove. The recessed space is opened along the circumferential direction, and the angle range of the recessed space is twice that of the wave guiding groove.

5. The wire-controlled handrail with angle adjustment function according to claim 1, characterized in that: It also includes a support tube shell, which is cylindrical and is mounted on the outside of the inner support rod. The upper end of the support tube shell is fixed to the lower surface of the armrest plate. The diameter of the support tube shell is not less than the outer diameter of the outer support tube.

6. The wire-controlled handrail with angle adjustment function according to claim 5, characterized in that: The pulling member is horizontally rotatably mounted on the armrest plate via rotating shafts on both sides, and the trigger of the pulling member extends from the bottom of the armrest plate; The upper end body of the inner support rod is provided with a spring tube accommodating recess. When the inner support rod and the outer support tube are in a retracted state, the spring tube is coiled in the spring tube accommodating recess. A wire pulling hole is provided at the connection portion between the inner support rod and the armrest plate, and the wire is passed through the wire pulling hole and into the spring tube.

7. The wire-controlled handrail with angle adjustment function according to claim 1, characterized in that: The armrest plate is also provided with a translation component and a rotation component.

8. The wire-controlled handrail with angle adjustment function according to claim 1, characterized in that: A telescopic stroke limiting device is also provided between the inner support rod and the outer support tube.

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