Quick-mount type adjustable armrest and seat thereof

Abstract

The application belongs to the technical field of office chairs, and particularly relates to a quick-mount type adjustable armrest and a seat thereof, which comprises a base piece, a supporting frame arranged at the lower end face of the base piece, a base piece arranged at the lower end face of the supporting frame, and a seat frame fixed to the upper end face of the base piece, a hydraulic rod connected to the lower end of the base piece, an extension rod connected to the lower end face of the hydraulic rod, and an extension plate arranged at the left and right sides of the base piece, wherein the upper end of the extension plate is connected with an armrest base plate, and the interior of the armrest base plate is provided with an adjusting mechanism. In the application, the extension rod at the lower end of the hydraulic rod is embedded into the base piece, the base piece, the supporting frame and the base piece are quickly connected through the push spring, subsequent installation and maintenance are facilitated, the positioning pieces at the lower ends of the reinforcing disc one and the reinforcing disc two are embedded into the positioning grooves, the connecting sleeve ring is arranged to be in contact with the extension rod, and the connecting place of the extension rod and the base piece is reinforced and strengthened.

Description

Technical Field

[0001] This invention relates to the field of office chair technology, specifically to a quick-release adjustable armrest and its seat. Background Technology

[0002] Office chairs refer to various chairs provided for convenience in daily work and social activities. Office partners divide office chairs into narrow and broad definitions. In a narrow sense, office chairs refer to backrest chairs used when people are working at a desk in a seated position. In a broad sense, office chairs refer to all chairs used in offices, including executive chairs, mid-level chairs, meeting chairs, staff chairs, conference chairs, visitor chairs, training chairs, etc.

[0003] Office chairs are essential equipment in daily office work, but the installation process of chair armrests is often cumbersome, requiring complicated tools and steps. This not only consumes a lot of time and manpower, but also affects the stability of the armrests.

[0004] Therefore, we propose a quick-release adjustable armrest and its seat to solve the above problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a quick-install adjustable armrest and its seat, which solves the problem that armrests in the aforementioned technologies often have cumbersome installation processes, requiring complex tools and steps during installation. This not only consumes a lot of time and manpower but also affects the stability of the armrest.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0009] A quick-release adjustable armrest and its seat include a base component, a support frame disposed on the lower end face inside the base component, and a base component located on the lower end face of the support frame, and further include;

[0010] A seat frame is fixed to the upper surface of the base component, and a seat cushion is provided on the upper surface of the seat frame; a hydraulic rod is connected to the lower end of the base component, and an extension rod is connected to the lower end of the hydraulic rod.

[0011] The casters are evenly distributed on the lower end face of the base component. The base component has a locking mechanism inside, which is used to lock and limit the position of the extension rod.

[0012] The backrest is located at the rear end of the base. A connector is connected to the lower rear side of the backrest, and an elastic support is connected to the lower end of the connector. The elastic support has an arc-shaped structure, and a fixing component is fixed to the lower end of the elastic support. The fixing component is fixed to the base.

[0013] Extension plates are set on the left and right sides of the base component. The upper end of the extension plates is connected to the armrest base plate. An adjustment mechanism is set inside the armrest base plate to adjust the position of the armrest base plate.

[0014] The handle is rotatably connected to the upper surface of the armrest base plate, and a positioning mechanism is provided on one side of the armrest base plate to lock and limit the adjusted handle.

[0015] Furthermore, a connecting groove is provided in the center of the upper end surface of the base component, and the lower end of the extension rod is slidably embedded in the connecting groove. Positioning grooves are evenly provided on the outer side of the connecting groove, and the positioning grooves are arranged in a long strip structure.

[0016] Furthermore, the locking mechanism includes a locking groove, a push spring, a toggle member, and a locking strip. The push spring is disposed inside the base component, the toggle member is fixed to one side of the push spring and slides along the inside of the base component, the locking strip is fixed to one side of the toggle member, the locking groove is opened at the center of the extension rod, and the locking strip can be slidably engaged in the locking groove.

[0017] Furthermore, a connecting slide is fixed to one end of the backrest, and the cross-section of the connecting slide is a "T" shaped mechanism, which slides up and down along the inside of the connecting slide. A bolt is provided on the outside of the connecting slide and is connected to the connecting slide.

[0018] Furthermore, the extension plate is arranged in an "L" shape on the left and right sides of the base component and is connected to the seat frame by bolts.

[0019] Furthermore, a support plate is fixed to the upper end face of the extension plate, and the support plate is slidably embedded inside the armrest base plate, with connecting through holes evenly opened inside the support plate.

[0020] Furthermore, the adjustment mechanism includes a fixed slider, a fixed plate, a fixed seat, a return spring, and a connecting slider. The fixed slider is slidably engaged with the inner side of the armrest base plate. The connecting slider is fixed at the center of one side of the fixed slider and is slidably embedded inside the connecting through hole. The fixed plate is fixed to the side of the connecting slider, and the cross-section of the fixed plate is a "U" shaped structure. The fixed seat is fixed to one side of the fixed plate, and the return spring is fixed to one side of the fixed seat, with the other end of the return spring connected to the inside of the armrest base plate.

[0021] Furthermore, the positioning mechanism includes an adjusting rod, a ratchet disc, an adjusting handle, a locking plate, and a torsion spring. The adjusting rod is fixed to the lower end face of the handle disc and can be embedded in the center of the armrest base plate. The ratchet disc is fixed to the outer surface of the adjusting rod. The adjusting handle is rotatably connected to one side of the armrest base plate, and the other end of the adjusting handle extends outward from the armrest base plate. The locking plate is fixed to one end of the adjusting handle and engages with the ratchet disc. The torsion spring is sleeved on the outer surface of the adjusting rod and is connected to the armrest base plate.

[0022] Furthermore, the reinforcement mechanism includes a first reinforcement plate, a second reinforcement plate, a positioning element, and a threaded cylinder. The first reinforcement plate is fixed to the upper end of the base component, the second reinforcement plate is disposed on one side of the first reinforcement plate, the positioning element is fixed to the lower ends of the first and second reinforcement plates, and the positioning element can be slidably embedded into the positioning groove. The threaded cylinder is fixed to the upper end face of the first and second reinforcement plates, and the threaded cylinder has a ring-shaped structure.

[0023] Furthermore, a connecting collar is fitted onto the outer surface of the hydraulic rod, and a threaded component is provided on the outer surface of the hydraulic rod. An inner ring is provided at the upper end of the inner wall of the connecting collar, and the inner ring is connected to the threaded component on the outer surface of the hydraulic rod. The inner wall of the connecting collar is threaded and connected to the connecting collar on the outer surface of the first and second reinforcing discs.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, the present invention provides a quick-release adjustable armrest and its seat, which has the following advantages:

[0026] In this invention, the extension rod at the lower end of the hydraulic rod is embedded into the base component. Then, by pushing the spring to reset the actuating component, the locking strip can be slidably embedded into the locking groove inside the extension rod, thereby strengthening the hydraulic rod. Since the push spring is provided, the base component, support frame, and base component can be quickly connected, which facilitates subsequent installation and maintenance. Subsequently, the positioning components at the lower ends of the first and second reinforcing discs can be embedded into the positioning grooves, and the connecting collar can contact the extension rod to strengthen and reinforce the connection between the extension rod and the base component. Subsequently, the connecting collar can be connected to the threaded component on the outside of the extension rod, which allows the connecting collar to be adjusted up and down. Furthermore, the connecting collar can also be connected to the threaded cylinder to lock and limit the first and second reinforcing discs, preventing them from shifting or shaking.

[0027] In this invention, a support plate can be embedded into the armrest base plate. Then, a fixed slider on the inner side of the armrest base plate can be pushed out of the connecting through hole by a fixing seat and a fixing plate. Then, the armrest base plate can be pulled up to adjust its height. When the designated position is reached, the fixed slider is released, and the set return spring can pull the fixing plate and fixing seat to return to their original position, so that the connecting slider can be embedded into the internal connecting through hole. This can strengthen the connection between the armrest base plate and the extension plate, and prevent the armrest base plate from shifting or shaking, which would affect the stability of the armrest base plate.

[0028] This invention allows the adjusting rod to rotate along the inside of the handrail base plate. When the angle of the handle plate needs to be adjusted, the adjusting handle can be moved to one side to pull the locking plate out from the ratchet plate, thereby completing the angle adjustment of the handle plate. When the designated position is reached, the adjusting handle can be released, and the torsion spring can reset the handle plate, which facilitates subsequent processing and can restrain the position of the handle plate to a certain extent, preventing the handle plate from rotating randomly and affecting the comfort of subsequent users. Attached Figure Description

[0029] Figure 1 This is a top view schematic diagram of the quick-installation adjustable armrest and its seat of the present invention;

[0030] Figure 2 This is a left-side view of the quick-release adjustable armrest and its seat of the present invention;

[0031] Figure 3 This is a top-view schematic diagram of the quick-installation adjustable armrest and its seat of the present invention;

[0032] Figure 4 This is a top view of the base component of the present invention;

[0033] Figure 5 This is a top view of the base component of the present invention;

[0034] Figure 6 This is a bottom view of the extension plate of the present invention;

[0035] Figure 7 This is a top view of the fixed slider of the present invention;

[0036] Figure 8 This is a bottom view of the handle of the present invention;

[0037] Figure 9 This is a top view of the first and second reinforcing disks of the present invention;

[0038] Figure 10 This is a bottom view of the first and second reinforcing plates of the present invention.

[0039] In the diagram: 1. Base component; 101. Seat frame; 102. Seat cushion; 2. Support frame; 201. Hydraulic rod; 202. Extension rod; 203. Threaded component; 204. Locking groove; 3. Base component; 301. Caster wheel; 302. Connecting groove; 303. Positioning groove; 4. Locking mechanism; 401. Push spring; 402. Actuating component; 403. Locking strip; 5. Backrest component; 501. Connecting slide; 6. Extension plate; 601. Support plate; 602. Connecting through hole; 7. Armrest base plate; 01. Fixed slider; 702. Fixed plate; 703. Fixed seat; 704. Return spring; 705. Connecting slider; 8. Handle disc; 801. Adjusting rod; 802. Ratchet disc; 803. Adjusting handle; 804. Locking plate; 805. Torsion spring; 9. Reinforcing mechanism; 901. Reinforcing disc one; 902. Reinforcing disc two; 903. Positioning component; 904. Threaded cylinder; 905. Connecting collar; 906. Inner ring component; 10. Connecting component; 1001. Elastic support; 1002. Fixing assembly. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example

[0042] like Figures 1-10 As shown, an embodiment of the present invention provides a quick-installation adjustable armrest and its seat, including a base component 1, a support frame 2 disposed on the lower end surface inside the base component 1, and a base component 3 located on the lower end surface of the support frame 2, and further including;

[0043] A seat frame 101 is fixed to the upper surface of the base component 1, and a seat cushion 102 is provided on the upper surface of the seat frame 101; a hydraulic rod 201 is connected to the lower end of the base component 1, and an extension rod 202 is connected to the lower end of the hydraulic rod 201; casters 301 are evenly distributed on the lower surface of the base component 3, and a locking mechanism 4 is provided inside the base component 3 to lock and limit the position of the extension rod 202; a connecting groove 302 is provided in the center of the upper surface of the base component 3, and the lower end of the extension rod 202 slides into the connecting groove 302. Inside 2, the outer side of the connecting slide 302 is evenly provided with positioning grooves 303, and the positioning grooves 303 are arranged in a long strip structure. The connecting slide 302 can limit the extension rod 202, which can prevent the extension rod 202 from shifting or shaking. Then, the hydraulic rod 201 can make the user more comfortable, and the positioning grooves 303 can facilitate the subsequent connection with the reinforcement mechanism 9, thereby facilitating the subsequent reinforcement of the extension rod 202 and ensuring the stability of the extension rod 202.

[0044] The locking mechanism 4 includes a locking groove 204, a push spring 401, an actuating element 402, and a locking strip 403. The push spring 401 is disposed inside the base member 3. The actuating element 402 is fixed to one side of the push spring 401 and slides along the inside of the base member 3. The locking strip 403 is fixed to one side of the actuating element 402. The locking groove 204 is opened at the center of the extension rod 202, and the locking strip 403 is slidably engaged in the locking groove 204. The locking mechanism 4 is set inside the base part 3. When the extension rod 202 slides into the connecting groove 302, the spring 401 can be pushed to reset the actuating member 402. When the actuating member 402 is reset, it can be slidably locked in the locking groove 204 inside the extension rod 202 by the locking strip 403, thereby limiting the position of the extension rod 202 and preventing the extension rod 202 from deviating or shaking, which would affect the stability of the extension rod 202.

[0045] One end of the backrest 5 is fixed with a connecting slide 501, and the cross-section of the connecting slide 501 is a "T" shaped mechanism. It slides up and down along the inside of the connector 10. A bolt is provided on the outside of the connector 10 and is connected to the connecting slide 501. The connecting slide 501 can be slidably engaged with the inside of the connector 10. A screw can be provided on the outside of the connector 10. When the bolt passes through the connector 10 and connects with the connecting slide 501, the position of the backrest 5 can be limited, which can prevent the backrest 5 from shifting or shaking. At the same time, the height of the backrest 5 can be adjusted and controlled, making the backrest 5 more comfortable.

[0046] A backrest 5 is located at the rear end of the base 1. A connector 10 is connected to the lower rear end of the backrest 5, and an elastic support 1001 is connected to the lower end of the connector 10. The elastic support 1001 has an arc-shaped structure, and a fixing component 1002 is fixed to the lower end of the elastic support 1001, and the fixing component 1002 is fixed to the base 1. An extension plate 6 is located on the left and right sides of the base 1. An armrest base plate 7 is connected to the upper end of the extension plate 6. An adjustment mechanism is provided inside the armrest base plate 7 for adjusting the position of the armrest base plate 7. The extension plate 6 has an "L"-shaped structure and is located on the left and right sides of the base 1, and is connected to the seat frame 101 by bolts. The extension plate 6 can be connected to the base 1. The base 1 is connected, which not only facilitates the subsequent connection of the armrest base plate 7, but also the base 1 and the extension plate 6 are arranged in a "+" shape. When the extension plate 6 is connected to the seat frame 101 by bolts, it can also strengthen and reinforce the seat frame 101, ensuring the stability of the seat frame 101. The upper end surface of the extension plate 6 is fixed with a support plate 601, and the support plate 601 is slidably embedded in the armrest base plate 7. The support plate 601 has uniformly opened connecting through holes 602 inside. The support plate 601 can be embedded in the armrest base plate 7, which can not only limit the armrest base plate 7 and prevent the armrest base plate 7 from shifting, but also connect and limit the position of the armrest base plate 7 through the connecting through holes 602.

[0047] The adjustment mechanism includes a fixed slider 701, a fixed plate 702, a fixed base 703, a return spring 704, and a connecting slider 705. The fixed slider 701 is slidably engaged with the inner side of the armrest base plate 7. The connecting slider 705 is fixed to the center of one side of the fixed slider 701 and is slidably embedded inside the connecting through hole 602. The fixed plate 702 is fixed to the side of the connecting slider 705, and the cross-section of the fixed plate 702 is a "U" shaped structure. The fixed base 703 is fixed to one side of the fixed plate 702. The return spring 704 is fixed to one side of the fixed base 703, and the other end of the return spring 704 is connected to the inside of the armrest base plate 7. The adjustment mechanism is supported by a support plate 60. 1. It can be embedded in the armrest base plate 7. Then, the fixed slider 701 on the inner side of the armrest base plate 7 can push the connecting slider 705 out of the connecting through hole 602 through the fixed seat 703 and the fixed plate 702. Then, the armrest base plate 7 is pulled up to adjust the height of the armrest base plate 7. When the specified position is reached, the fixed slider 701 is released, and the set reset spring 704 can pull the fixed plate 702 and the fixed seat 703 to reset, so that the connecting slider 705 can be embedded in the internal connecting through hole 602. This can strengthen the connection between the armrest base plate 7 and the extension plate 6, and prevent the armrest base plate 7 from shifting and shaking, which would affect the stability of the armrest base plate 7.

[0048] The handle disc 8 is rotatably connected to the upper surface of the armrest base plate 7, and a positioning mechanism is provided on one side of the armrest base plate 7 for locking and limiting the adjusted handle disc 8. The positioning mechanism includes an adjusting rod 801, a ratchet disc 802, an adjusting handle 803, a locking plate 804, and a torsion spring 805. The adjusting rod 801 is fixed to the lower surface of the handle disc 8, and the adjusting rod 801 can be embedded in the center of the armrest base plate 7. The ratchet disc 802 is fixed to the outer surface of the adjusting rod 801. The adjusting handle 803 is rotatably connected to one side of the armrest base plate 7, and the other end of the adjusting handle 803 extends outward from the armrest base plate 7. The locking plate 804 is fixed to one end of the adjusting handle 803, and the locking plate 804 engages with the ratchet disc 802. Next, the torsion spring 805 is sleeved on the outer surface of the adjusting rod 801 and is connected to the armrest base plate 7. The adjusting rod 801 can rotate along the inside of the armrest base plate 7. If it is necessary to adjust the angle of the handle plate 8, the adjusting handle 803 can be pushed to one side from the groove on the outside of the armrest base plate 7, and the locking plate 804 can be pulled out from the ratchet plate 802, thereby completing the angle adjustment of the handle plate 8. When the specified position is reached, the adjusting handle 803 is released, and the torsion spring 805 can reset the handle plate 8, which facilitates subsequent processing and can restrain the position of the handle plate 8 to a certain extent, preventing the handle plate 8 from rotating randomly and affecting the comfort of subsequent use by the staff.

[0049] The reinforcement mechanism 9 includes a first reinforcement plate 901, a second reinforcement plate 902, a positioning element 903, and a threaded cylinder 904. The first reinforcement plate 901 is fixed to the upper end of the base component 3. The second reinforcement plate 902 is disposed on one side of the first reinforcement plate 901. The positioning element 903 is fixed to the lower ends of the first reinforcement plate 901 and the second reinforcement plate 902, and the positioning element 903 can slide into the positioning groove 303. The threaded cylinder 904 is fixed to the upper end face of the first reinforcement plate 901 and the second reinforcement plate 902, and the threaded cylinder 904 has a ring-shaped structure. The positioning element 903 at the lower end of the first reinforcement plate 901 and the second reinforcement plate 902 can be embedded into the positioning groove 303. The connecting collar 905 can contact the extension rod 202, which can strengthen and reinforce the connection between the extension rod 202 and the base component 3, thereby preventing the extension rod 202 from shifting or breaking. This affects the stability of the seat; the outer surface of the hydraulic rod 201 is fitted with a connecting collar 905, and the outer surface of the hydraulic rod 201 is provided with a threaded part 203. The upper end of the inner wall of the connecting collar 905 is provided with an inner ring part 906, and the inner ring part 906 is connected to the threaded part 203 on the outer surface of the hydraulic rod 201. The inner wall of the connecting collar 905 is provided with threads and is connected to the connecting collar 905 on the outer surface of the first reinforcing plate 901 and the second reinforcing plate 902. Subsequently, the connecting collar 905 can be connected to the threaded part 203 on the outer side of the extension rod 202, so that the connecting collar 905 can be adjusted up and down. In addition, the connecting collar 905 can also be connected to the threaded cylinder 904, which can lock and limit the first reinforcing plate 901 and the second reinforcing plate 902, and can prevent the first reinforcing plate 901 and the second reinforcing plate 902 from shifting and shaking.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-release adjustable armrest and its seat, comprising a base (1), a support frame (2) disposed on the lower end face inside the base (1), and a base member (3) located on the lower end face of the support frame (2), characterized in that, Also includes; A seat frame (101) is fixed to the upper end of the base component (1), and a seat cushion (102) is provided on the upper end of the seat frame (101); a hydraulic rod (201) is connected to the lower end of the base component (1), and an extension rod (202) is connected to the lower end of the hydraulic rod (201). The casters (301) are evenly distributed on the lower end face of the base component (3). The base component (3) is provided with a locking mechanism (4) for locking and limiting the position of the extension rod (202). Backrest (5) is located at the rear end of base (1). A connector (10) is connected to the lower rear side of the backrest (5). An elastic support (1001) is connected to the lower end of the connector (10). The elastic support (1001) is an arc-shaped structure. A fixing component (1002) is fixed to the lower end of the elastic support (1001). The fixing component (1002) is fixed to the base (1). An extension plate (6) is provided on the left and right sides of the base component (1). The upper end of the extension plate (6) is connected to a handrail base plate (7). The handrail base plate (7) is provided with a positioning mechanism inside, which is used to adjust the position of the handrail base plate (7). The handle plate (8) is rotatably connected to the upper surface of the armrest base plate (7), and a locking mechanism is provided on one side of the armrest base plate (7) for locking and limiting the adjusted handle plate (8).

2. The quick-release adjustable armrest and its seat according to claim 1, characterized in that: The upper surface of the base component (3) is provided with a connecting groove (302), and the lower end of the extension rod (202) is slidably embedded in the connecting groove (302). The outer side of the connecting groove (302) is provided with a positioning groove (303), and the positioning groove (303) is provided with a long strip structure.

3. The quick-release adjustable armrest and its seat according to claim 2, characterized in that: The locking mechanism (4) includes a locking groove (204), a push spring (401), a toggle member (402), and a locking strip (403). The push spring (401) is located inside the base member (3). The toggle member (402) is fixed to one side of the push spring (401) and slides along the inside of the base member (3). The locking strip (403) is fixed to one side of the toggle member (402). The locking groove (204) is located in the center of the extension rod (202) and the locking strip (403) can be slidably engaged in the locking groove (204).

4. The quick-release adjustable armrest and its seat according to claim 1, characterized in that: One end of the backrest (5) is fixed with a connecting slide (501), and the cross-section of the connecting slide (501) is a "T" shaped mechanism, which slides up and down along the inside of the connecting member (10). The outside of the connecting member (10) is provided with bolts and connected to the connecting slide (501).

5. The quick-release adjustable armrest and its seat according to claim 1, characterized in that: The extension plate (6) is arranged in an "L" shape on the left and right sides of the base (1) and is connected to the seat frame (101) by bolts.

6. The quick-release adjustable armrest and its seat according to claim 5, characterized in that: The upper end face of the extension plate (6) is fixed with a support plate (601), and the support plate (601) is slidably embedded in the armrest base plate (7). The support plate (601) is uniformly provided with connecting through holes (602).

7. A quick-release adjustable armrest and its seat according to claim 6, characterized in that: The adjustment mechanism includes a fixed slider (701), a fixed plate (702), a fixed seat (703), a return spring (704), and a connecting slider (705). The fixed slider (701) is slidably engaged with the inner side of the armrest base plate (7). The connecting slider (705) is fixed at the center of one side of the fixed slider (701) and is slidably embedded in the interior of the connecting through hole (602). The fixed plate (702) is fixed to the side of the connecting slider (705) and has a "U" shaped cross-section. The fixed seat (703) is fixed to one side of the fixed plate (702). The return spring (704) is fixed to one side of the fixed seat (703) and is connected to the interior of the armrest base plate (7).

8. A quick-release adjustable armrest and its seat according to claim 7, characterized in that: The positioning mechanism includes an adjusting rod (801), a ratchet disc (802), an adjusting handle (803), a locking plate (804), and a torsion spring (805). The adjusting rod (801) is fixed to the lower end face of the handle disc (8), and the adjusting rod (801) can be embedded in the center of the armrest base plate (7). The ratchet disc (802) is fixed to the outer surface of the adjusting rod (801). The adjusting handle (803) is rotatably connected to one side of the armrest base plate (7), and the other end of the adjusting handle (803) extends outward from the armrest base plate (7). The locking plate (804) is fixed to one end of the adjusting handle (803), and the locking plate (804) is engaged with the ratchet disc (802). The torsion spring (805) is sleeved on the outer surface of the adjusting rod (801), and the torsion spring (805) is connected to the armrest base plate (7).

9. A quick-release adjustable armrest and its seat according to claim 2, characterized in that: The reinforcement mechanism (9) includes a first reinforcement plate (901), a second reinforcement plate (902), a positioning element (903), and a threaded cylinder (904). The first reinforcement plate (901) is fixed to the upper end of the base component (3). The second reinforcement plate (902) is located on one side of the first reinforcement plate (901). The positioning element (903) is fixed to the lower end of the first reinforcement plate (901) and the second reinforcement plate (902), and the positioning element (903) can be slidably embedded in the positioning groove (303). The threaded cylinder (904) is fixed to the upper end face of the first reinforcement plate (901) and the second reinforcement plate (902), and the threaded cylinder (904) has a ring-shaped structure.

10. A quick-release adjustable armrest and its seat according to claim 9, characterized in that: The outer surface of the hydraulic rod (201) is fitted with a connecting collar (905), and the outer surface of the hydraulic rod (201) is provided with a threaded part (203). The upper end of the inner wall of the connecting collar (905) is provided with an inner ring part (906), and the inner ring part (906) is connected to the threaded part (203) on the outer surface of the hydraulic rod (201). The inner wall of the connecting collar (905) is provided with threads and is connected to the connecting collar (905) on the outer surface of the first reinforcing plate (901) and the second reinforcing plate (902).

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