Seat armrest mechanism and seat

Abstract

The utility model discloses a seat armrest mechanism and a seat. The seat armrest mechanism comprises a base and an armrest cross beam, the base is provided with a first connecting frame; the handrail cross beam is arranged on the first connecting frame in a sliding mode in the first direction, at least two first gear grooves are formed in one of the handrail cross beam and the first connecting frame in the first direction, an elastic arm is integrally arranged on the other one, a first gear block is formed at the tail end of the elastic arm, and the first gear block can be opposite to the first gear grooves. The elastic arms are used for driving the first gear blocks to enter the first gear grooves, and when the handrail cross beam slides relative to the first connecting frame, the first gear blocks can be switched to be connected to the different first gear grooves. According to the seat armrest mechanism, the elastic arm and the first gear block are directly formed in an integral forming mode, and the first gear block and a spring can be prevented from being independently manufactured and assembled, so that the structure of the seat armrest mechanism is simplified, and the assembling difficulty and the production cost are reduced.

Description

Technical Field

[0001] This utility model relates to seats, and more particularly to a seat armrest mechanism and a seat. Background Technology

[0002] Some existing office chairs include a chair body and an armrest mechanism. The armrest mechanism includes a base and an armrest beam. The base has a connecting frame, and the armrest beam is slidably connected to the connecting frame. Multiple positioning slots are arranged along the sliding direction of the armrest beam. Sliding positioning blocks are installed on the connecting frame, and springs are mounted on the connecting frame, with the springs abutting against the positioning blocks. When a positioning block is aligned with a positioning slot, the spring can drive the positioning block into the slot. The user can slide and adjust the position of the armrest beam according to actual needs. As the armrest beam slides, the positioning blocks can switch into different positioning slots, providing a tactile feedback when the armrest beam slides. However, existing chair armrest mechanisms are still relatively complex in structure, difficult to assemble, and have high production costs. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a seat armrest mechanism that simplifies the structure and reduces assembly difficulty and production costs.

[0004] This utility model also proposes a seat having the above-mentioned armrest mechanism.

[0005] According to a first aspect embodiment of the present invention, a seat armrest mechanism includes a base and an armrest beam. The base is provided with a first connecting frame; the armrest beam is slidably disposed on the first connecting frame along a first direction. One of the armrest beam and the first connecting frame is provided with at least two first stop slots arranged along the first direction, and the other is integrally formed with an elastic arm. The end of the elastic arm forms a first stop block, which can be opposite to the first stop slot. The elastic arm is used to drive the first stop block into the first stop slot. When the armrest beam slides relative to the first connecting frame, the first stop block can switch between different first stop slots.

[0006] According to the first aspect of the present invention, the seat armrest mechanism has at least the following advantages: the armrest beam or the first connecting frame is directly formed into an elastic arm by integral molding, and the end of the elastic arm is directly formed into a first stop block. The elastic arm provides elastic force to the first stop block, so that the first stop block can enter the first stop groove. The above-mentioned seat armrest mechanism directly forms the elastic arm and the first stop block by integral molding, which can eliminate the need to separately manufacture and assemble the first stop block and the spring, thereby simplifying the structure of the seat armrest mechanism and reducing the assembly difficulty and production cost.

[0007] According to some embodiments of the present invention, the handrail beam is provided with a guide groove along the first direction, the first connecting frame is slidably connected to the guide groove, the groove wall of the guide groove is provided with the first stop groove, and the first connecting frame is provided with the elastic arm and the first stop block.

[0008] According to some embodiments of the present invention, the base further includes an elastic reinforcement member, which is disposed on the first connecting frame and abuts against the elastic arm, and the elastic arm is located between the elastic reinforcement member and the first gear slot.

[0009] According to some embodiments of the present invention, the first stop groove is arranged on both sides of the guide slide wall, and the elastic arm is arranged on both sides of the first connecting frame.

[0010] According to some embodiments of the present invention, the elastic arms are provided on both sides of the first connecting frame, and the two ends of the elastic reinforcement abut against the two elastic arms in a one-to-one correspondence.

[0011] According to some embodiments of the present invention, the base further includes a second connecting frame, a second stop block, and an elastic driving member. The first connecting frame is rotatably disposed at one end of the second connecting frame about a first axis, the first axis being perpendicular to the first direction. The second connecting frame is arranged with at least two second stop slots around the first axis. The second stop block is slidably disposed on the first connecting frame and can be opposite to the second stop slot. The elastic driving member is disposed between the first connecting frame and the second stop block and is used to drive the second stop block into the second stop slot. When the first connecting frame rotates about the first axis, the second stop block can switch between being connected to different second stop slots.

[0012] According to some embodiments of the present invention, the base further includes a first support rod, and the other end of the second connecting frame is rotatably disposed at one end of the first support rod about a second axis, wherein the second axis is parallel to the first axis.

[0013] According to some embodiments of the present invention, the base further includes a second support rod and a locking mechanism. The first support rod and the second support rod are parallel to each other. The second support rod is slidably disposed on the first support rod along the length direction of the first support rod. The locking mechanism is disposed between the first support rod and the second support rod and can lock or unlock the position of the first support rod relative to the second support rod.

[0014] According to some embodiments of the present invention, the locking mechanism includes a locking member and at least two third position slots. All of the third position slots are arranged along the length direction of the second support rod on the second support rod. The locking member is rotatably connected to the first support rod. The locking member is provided with a toggle part and a plug part. The plug part can be opposite to the third position slot. The locking member can be rotated to a position where the plug part is inserted into or disengaged from the third position slot.

[0015] The seat according to the second aspect embodiment of the present invention employs the above-described seat armrest mechanism.

[0016] The seat according to the second aspect of the present invention has at least the following beneficial effects: due to the adoption of the above-mentioned seat armrest mechanism, the structure of the seat can be simplified, and the assembly difficulty and production cost can be reduced.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a perspective view of the seat armrest mechanism according to an embodiment of the present utility model;

[0020] Figure 2 This is a side view of the seat armrest mechanism according to an embodiment of the present utility model;

[0021] Figure 3 This is an embodiment of the present utility model. Figure 2 A cross-sectional view along the AA direction;

[0022] Figure 4 This is a top view of the seat armrest mechanism after removing part of its structure according to an embodiment of the present utility model.

[0023] Figure 5 This is an embodiment of the present utility model. Figure 2 A cross-sectional view along the BB direction.

[0024] Figure label:

[0025] Base 100, first connecting frame 110, elastic arm 111, first stop block 112, elastic reinforcing member 120, second connecting frame 130, second stop groove 131, second stop block 140, elastic driving member 150, first support rod 160, second support rod 170, locking mechanism 180, locking member 181, toggle part 1811, plug-in part 1812, third stop groove 182;

[0026] Handrail crossbeam 200, first gear groove 210, guide slide 220;

[0027] First axis 300;

[0028] Second axis 400. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, etc., are based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 5The seat armrest mechanism of this utility model includes a base 100 and an armrest beam 200. The base 100 is provided with a first connecting frame 110; the armrest beam 200 is slidably disposed on the first connecting frame 110 along a first direction, and the armrest beam 200 is provided with at least two first stop slots 210 arranged along the first direction. The first connecting frame 110 is integrally formed with an elastic arm 111, and the end of the elastic arm 111 forms a first stop block 112. The first stop block 112 can be opposite to the first stop slot 210. The elastic arm 111 is used to drive the first stop block 112 into the first stop slot 210. When the armrest beam 200 slides relative to the first connecting frame 110, the first stop block 112 can switch to be connected to different first stop slots 210.

[0034] The first connecting frame 110 directly forms the elastic arm 111 through integral molding. The end of the elastic arm 111 directly forms the first stop block 112. The elastic arm 111 provides elastic force to the first stop block 112, allowing the first stop block 112 to enter the first stop groove 210. The above-mentioned seat armrest mechanism directly forms the elastic arm 111 and the first stop block 112 through integral molding of the first connecting frame 110. This eliminates the need to separately manufacture and assemble the first stop block 112 and the spring, thereby simplifying the structure of the seat armrest mechanism and reducing assembly difficulty and production costs.

[0035] Specifically, the handrail beam 200 has a tactile feedback when sliding, which gives it a certain degree of position self-locking function.

[0036] In this embodiment, the handrail beam 200 is provided with a guide groove 220 along a first direction. A first connecting frame 110 is slidably connected to the guide groove 220. The groove wall of the guide groove 220 is provided with a first stop groove 210. The first connecting frame 110 is provided with an elastic arm 111 and a first stop block 112. By slidably connecting the first connecting frame 110 to the guide groove 220, the handrail beam 200 can slide relative to the first connecting frame 110. Furthermore, by providing the first stop groove 210 in the groove wall of the guide groove 220, the elastic arm 111 and the first stop block 112 are formed in the first connecting frame 110, resulting in a simple structure that is easy to implement.

[0037] Specifically, in this embodiment, the first direction is the length direction of the handrail beam 200. The handrail beam 200 is arranged in a horizontal direction.

[0038] In this embodiment, the base 100 further includes an elastic reinforcement 120, which is disposed on the first connecting frame 110 and abuts against the elastic arm 111. The elastic arm 111 is located between the elastic reinforcement 120 and the first stop groove 210. The first connecting frame 110 integrally forms the elastic arm 111 and the first stop block 112. The elasticity of the elastic arm 111 may not be strong enough, making the stop feel insufficient when the armrest beam 200 slides. Therefore, the elastic reinforcement 120 is added. Through the abutment between the elastic reinforcement 120 and the elastic arm 111, the first stop block 112 needs to overcome the elastic force of the elastic arm 111 and the elastic reinforcement 120 to disengage from the first stop groove 210. That is, the user needs more force to push the armrest beam 200 to slide, so that the armrest beam 200 has a stronger stop feel when sliding.

[0039] In this embodiment, the guide slide 220 has first gear slots 210 arranged on both sides of the groove wall, and the first connecting frame 110 has elastic arms 111 arranged on both sides of the groove wall. This can further enhance the gear feel when the armrest beam 200 slides and improve the user experience of the seat armrest mechanism. Even if some elastic arms 111 are damaged, the gear function will not be completely lost, thus improving the durability of the seat armrest mechanism.

[0040] In this embodiment, elastic arms 111 are provided on both sides of the first connecting frame 110. The two ends of the elastic reinforcing member 120 abut against the two elastic arms 111 in a one-to-one correspondence. By using one elastic reinforcing member 120, the elastic force of the two elastic arms 111 on the first stop block 112 can be enhanced at the same time. It is not necessary for the number of elastic reinforcing members 120 to correspond one-to-one with the number of elastic arms 111, thereby reducing the number of elastic reinforcing members 120, simplifying the structure and reducing production costs.

[0041] Specifically, the first connecting frame 110 is made of plastic, which allows the elastic arm 111 to have good elasticity.

[0042] Specifically, the elastic reinforcement 120 is a spring. It is conceivable that in other embodiments, the elastic reinforcement 120 may also be a structure with elasticity, such as a rubber block, a silicone block, or a spring sheet.

[0043] Specifically, the first connecting frame 110 is provided with four elastic arms 111. Two elastic arms 111 are located at one end of the first connecting frame 110 along the first direction and are placed on opposite sides of the first connecting frame 110. The other two elastic arms 111 are located at the other end of the first connecting frame 110 along the first direction and are placed on opposite sides of the first connecting frame 110.

[0044] Specifically, the first connecting frame 110 may be provided with two, three, four or more first gear slots 210, which can be selected by those skilled in the art according to actual needs.

[0045] It is conceivable that in some other embodiments, the handrail beam 200 may also be slidably connected to the first connecting frame 110 via a guide post and guide sleeve structure, and those skilled in the art may choose according to actual needs.

[0046] It is conceivable that in other embodiments, a first stop groove 210 may be provided in the first connecting frame 110, and an elastic arm 111 and a first stop block 112 may be provided in the handrail beam 200. Those skilled in the art may choose according to actual needs.

[0047] Specifically, the first gear slot 210 is an arc-shaped slot, which allows the first gear block 112 to disengage from the current first gear slot 210 when the handrail beam 200 slides.

[0048] In this embodiment, the base 100 further includes a second connecting frame 130, a second gear block 140, and an elastic drive member 150. The first connecting frame 110 is rotatably disposed at one end of the second connecting frame 130 around a first axis 300, which is perpendicular to a first direction. The second connecting frame 130 is arranged with at least two second gear slots 131 around the first axis 300. The second gear block 140 is slidably disposed on the first connecting frame 110 and can be opposite to the second gear slots 131. The elastic drive member 150 is disposed between the first connecting frame 110 and the second gear block 140 and is used to drive the second gear block 140 into the second gear slot 131. When the first connecting frame 110 rotates around the first axis 300, the second gear block 140 can switch between different second gear slots 131.

[0049] When using the armrest mechanism, the user can rotate the armrest beam 200 and the first connecting frame 110 together around the first axis 300 relative to the first connecting frame 110 according to actual needs, so as to adjust the angle of the armrest beam 200. The second connecting frame 130 is provided with a second gear slot 131, and the first connecting frame 110 is equipped with an elastic drive member 150 and a second gear block 140. When the first connecting frame 110 rotates relative to the second connecting frame 130, under the action of the elastic drive member 150, the second gear block 140 can switch into and out of different second gear slots 131, so that the armrest beam 200 and the first connecting frame 110 generate a gear feeling during rotation, and the armrest beam 200 and the first connecting frame 110 have a certain degree of angle self-locking function.

[0050] Specifically, the second connecting frame 130 is approximately strip-shaped and arranged in the horizontal direction, and the second gear slot 131 is an arc-shaped slot, so that when the first connecting frame 110 rotates, the second gear block 140 can disengage from the current second gear slot 131.

[0051] Specifically, the first connecting frame 110 is provided with a pivot hole, and the second connecting frame 130 is provided with a pivot portion, which rotatably passes through the pivot hole. A second stop groove 131 is provided on the outer periphery of the pivot portion, and a second stop block 140 is located on the wall of the second pivot hole. It can be understood that the first connecting frame 110 may have a pivot portion, and the second connecting frame 130 may have a pivot hole; or the two may be rotatably connected by a pivot.

[0052] Specifically, the second connecting bracket 130 may be provided with two, three, four or more second gear slots 131, which can be selected by those skilled in the art according to actual needs.

[0053] Specifically, the elastic drive element 150 is a spring, with one end abutting against the first connecting bracket 110 and the other end abutting against the second stop block 140. It is conceivable that in other embodiments, the elastic drive element 150 may also be a structure with elasticity, such as a rubber block, silicone block, or spring sheet.

[0054] Specifically, there are two second gear blocks 140 evenly arranged around the first axis 300, and two elastic drive members 150 corresponding one-to-one with the second gear blocks 140. Each second gear slot 131 is evenly arranged around the first axis 300.

[0055] Specifically, in this embodiment, the first axis 300 is set in the vertical direction.

[0056] In this embodiment, the base 100 further includes a first support rod 160, and the other end of the second connecting frame 130 is rotatably mounted on one end of the first support rod 160 about a second axis 400, with the second axis 400 parallel to the first axis 300. The handrail beam 200, the first connecting frame 110, and the second connecting frame 130 can also rotate together about the second axis 400, thereby further improving the angle adjustment range of the handrail beam 200 and making the adjustment angle position of the handrail beam 200 more flexible.

[0057] Specifically, the first support rod 160 is set approximately in the vertical direction.

[0058] Specifically, the first support rod 160 is provided with a pivot part, and the second connecting frame 130 is provided with a pivot hole. The pivot part rotatably passes through the pivot hole, realizing the rotatable connection between the two. It is conceivable that the second connecting frame 130 could also be provided with a pivot part, and the first support rod 160 could be provided with a pivot hole; or the two could be pivotally connected by a pivot.

[0059] In this embodiment, the base 100 further includes a second support rod 170 and a locking mechanism 180. The first support rod 160 and the second support rod 170 are parallel to each other. The second support rod 170 is slidably disposed on the first support rod 160 along its length. The locking mechanism 180 is disposed between the first support rod 160 and the second support rod 170 and can lock or unlock the position of the first support rod 160 relative to the second support rod 170. The first support rod 160 can slide relative to the second support rod 170 along its length, and the locking mechanism 180 locks the position of the first support rod 160 relative to the second support rod 170, thereby allowing adjustment of the height position of the handrail beam 200, resulting in more flexible adjustment.

[0060] In this embodiment, the locking mechanism 180 includes a locking member 181 and at least two third-position slots 182. All the third-position slots 182 are arranged along the length of the second support rod 170. The locking member 181 is rotatably connected to the first support rod 160. The locking member 181 is provided with a toggle part 1811 and a plug part 1812. The plug part 1812 can be opposite to the third-position slot 182. The locking member 181 can be rotated to a position where the plug part 1812 is inserted into or disengaged from the third-position slot 182. By toggling the toggle part 1811, the user can disengage the plug part 1812 from the current third-position slot 182, and then the first support rod 160 can be raised or lowered relative to the second support rod 170. When the handrail beam 200 is raised or lowered to the appropriate position, the user releases the dial 1811, and then the locking member 181 can rotate to reset, so that the plug 1812 is inserted into the nearest third position slot 182, thereby locking the position of the first support rod 160 relative to the second support rod 170, that is, keeping the handrail beam 200 at the current height position.

[0061] Specifically, the second support rod 170 can be provided with two, three, four or more third gear slots 182, which can be selected by those skilled in the art according to actual needs.

[0062] Specifically, the first support rod 160 is provided with a guide hole, and the second support rod 170 slides through the guide hole, allowing the two to slide relative to each other. It is conceivable that in some other embodiments, the first support rod 160 may also slide through the guide hole of the second support rod 170.

[0063] Specifically, the locking mechanism 180 may further include an elastic reset member, which is disposed between the first support rod 160 and the locking member 181 and applies a force to rotate the locking member 181 toward the locked position, thereby improving the reset stability of the locking member 181. Specifically, the elastic reset member is a spring. It is understood that in other embodiments, the elastic reset member may also be a structure with elasticity, such as a spring sheet, a rubber block, or a silicone block.

[0064] It is conceivable that in other embodiments, the locking mechanism 180 can also be other structures. For example, the locking mechanism 180 can be a bolt, with a threaded through hole provided in the first support rod 160. The bolt is threaded into the threaded through hole. When the bolt is tightened, one end of the bolt abuts against the second support rod 170, locking the position of the first support rod 160 relative to the second support rod 170 through friction. When the bolt is loosened, the position of the first support rod 160 can be adjusted. Alternatively, the first support rod 160 can be provided with multiple pin holes arranged along its length, and the second support rod 170 can be provided with pin holes. A pin can be inserted into one of the pin holes of the first support rod 160 and the second pin hole of the second support rod 170 to lock their positions. When the pin is pulled out, the position of the first support rod 160 can be adjusted.

[0065] Specifically, the second support rod 170 is a hollow rod body, and the locking part 181 extends into the second support rod 170, so that the structure between the first support rod 160 and the second support rod 170 can be more compact.

[0066] Specifically, a mounting plate is provided at the end of the second support rod 170 away from the armrest crossbeam 200. The mounting plate can be installed on the seat body by screwing it on.

[0067] Specifically, in use, the armrest mechanism features a horizontally oriented armrest beam 200. The armrest beam 200 can slide and adjust its position relative to the first connecting frame 110 along its length. The armrest beam 200 and the first connecting frame 110 can rotate and adjust their positions together relative to the second connecting frame 130 in the horizontal plane. The second connecting frame 130 can rotate and adjust its position relative to the first support rod 160 in the horizontal plane. When the locking mechanism 180 is unlocked, the first support rod 160 can be raised or lowered relative to the second support rod 170. These armrest mechanisms can work together to achieve multiple position and angle adjustments for the armrest beam 200.

[0068] This utility model also discloses a seat that adopts the aforementioned seat armrest mechanism. By adopting the aforementioned seat armrest mechanism, the seat structure can be simplified, and assembly difficulty and production costs can be reduced.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] 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 seat armrest mechanism, characterized in that, include: The base (100) is provided with a first connecting frame (110); A handrail beam (200) is slidably disposed on the first connecting frame (110) along a first direction. One of the handrail beam (200) and the first connecting frame (110) is provided with at least two first stop slots (210) arranged along the first direction. The other is integrally formed with an elastic arm (111). The end of the elastic arm (111) forms a first stop block (112). The first stop block (112) can be opposite to the first stop slot (210). The elastic arm (111) is used to drive the first stop block (112) into the first stop slot (210). When the handrail beam (200) slides relative to the first connecting frame (110), the first stop block (112) can switch to be connected to different first stop slots (210).

2. The seat armrest mechanism according to claim 1, characterized in that: The handrail beam (200) is provided with a guide groove (220) along the first direction. The first connecting frame (110) is slidably connected to the guide groove (220). The groove wall of the guide groove (220) is provided with the first stop groove (210). The first connecting frame (110) is provided with the elastic arm (111) and the first stop block (112).

3. The seat armrest mechanism according to claim 2, characterized in that: The base (100) further includes an elastic reinforcement (120), which is disposed on the first connecting frame (110) and abuts against the elastic arm (111). The elastic arm (111) is located between the elastic reinforcement (120) and the first gear slot (210).

4. The seat armrest mechanism according to claim 2, characterized in that: The guide groove (220) has the first stop groove (210) arranged on both sides of the groove wall, and the elastic arm (111) is arranged on both sides of the first connecting frame (110).

5. The seat armrest mechanism according to claim 3, characterized in that: The first connecting frame (110) is provided with elastic arms (111) on both sides, and the two ends of the elastic reinforcement (120) abut against the two elastic arms (111) one by one.

6. The seat armrest mechanism according to claim 1, characterized in that: The base (100) further includes a second connecting frame (130), a second stop block (140), and an elastic drive member (150). The first connecting frame (110) is rotatably disposed at one end of the second connecting frame (130) around a first axis (300), the first axis (300) being perpendicular to the first direction. The second connecting frame (130) is arranged with at least two second stop slots (131) around the first axis (300). The second stop block (140) is slidably disposed on the second connecting frame (130). A connecting frame (110) is provided, the second gear block (140) is able to be opposite to the second gear slot (131), the elastic drive member (150) is disposed between the first connecting frame (110) and the second gear block (140) and is used to drive the second gear block (140) into the second gear slot (131), when the first connecting frame (110) rotates around the first axis (300), the second gear block (140) can switch to be connected to different second gear slots (131).

7. The seat armrest mechanism according to claim 6, characterized in that: The base (100) further includes a first support rod (160), and the other end of the second connecting frame (130) is rotatably disposed on one end of the first support rod (160) about a second axis (400), and the second axis (400) is parallel to the first axis (300).

8. The seat armrest mechanism according to claim 7, characterized in that: The base (100) further includes a second support rod (170) and a locking mechanism (180). The first support rod (160) and the second support rod (170) are parallel to each other. The second support rod (170) is slidably disposed on the first support rod (160) along the length direction of the first support rod (160). The locking mechanism (180) is disposed between the first support rod (160) and the second support rod (170) and can lock or unlock the position of the first support rod (160) relative to the second support rod (170).

9. The seat armrest mechanism according to claim 8, characterized in that: The locking mechanism (180) includes a locking member (181) and at least two third position slots (182). All the third position slots (182) are arranged along the length of the second support rod (170). The locking member (181) is rotatably connected to the first support rod (160). The locking member (181) is provided with a toggle part (1811) and a plug part (1812). The plug part (1812) can be opposite to the third position slot (182). The locking member (181) can be rotated to a position where the plug part (1812) is inserted into or disengaged from the third position slot (182).

10. A type of seat, characterized in that, Includes the seat armrest mechanism as described in any one of claims 1 to 9.

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