A seat armrest and a seat

Abstract

The utility model discloses a kind of seat armrests and seats, seat armrests include: armrest seat, with first cavity, the side wall of first cavity is spaced apart with multiple clamping slots along first direction, clamping slot has the bottom wall extending from outside to inside along second direction, bottom wall is gradually set up with gradually upward inclination;Armrest bar is slidably inserted in first cavity along first direction;First sliding slot is equipped in armrest bar, the arrangement direction of first sliding slot is parallel with the arrangement direction of bottom wall;Lock catch mechanism, including lock catch assembly and driving assembly, lock catch assembly is slidably arranged in first sliding slot;Lock catch assembly has the locking state of insertion clamping slot and with bottom wall abut, and has the unlocking state of separation out clamping slot;Driving assembly is used to drive lock catch assembly between locking state and unlocking state switching.Solved the seat armrest of existing when bearing larger stationary pressure, lock catch assembly and clamping slot cooperation easily failure, difficult to stabilize locking height, leading to armrest bar slide, poor stability problem.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, specifically to a seat armrest and a seat. Background Technology

[0002] In related technologies, adjustable armrests are commonly used in seats to support the hands. The armrests generally include a base and an armrest. The armrests are height-adjustable and mounted on the base. A locking component is installed on the armrest to engage with a slot in the base. The armrest unlocking component controls the locking component to unlock or lock in order to adjust the height of the armrest. However, when the armrest is subjected to a large static pressure, the locking component and the slot are prone to failure, making it difficult to stably lock the height, causing the armrest to slip off and resulting in poor stability. Utility Model Content

[0003] In view of this, the present invention provides a seat armrest and a seat to solve the problem that the existing seat armrests are prone to failure when subjected to large static pressure, making it difficult to stably lock the height, resulting in the armrest slipping and poor stability.

[0004] In a first aspect, this utility model provides a seat armrest, comprising:

[0005] The armrest seat has a first cavity that extends to its top along a first direction. The sidewall of the first cavity is provided with a plurality of slots spaced apart along the first direction. The slots have a bottom wall that extends from the outside to the inside along a second direction and the bottom wall is gradually inclined upward.

[0006] The handrail is slidably inserted into the first cavity along a first direction; the handrail is provided with a first sliding groove, the arrangement direction of the first sliding groove being parallel to the arrangement direction of the bottom wall;

[0007] The locking mechanism includes a locking assembly and a driving assembly. The locking assembly is slidably disposed within the first slide groove. The locking assembly has a locked state in which it is inserted into the slot and abuts against the bottom wall, and an unlocked state in which it is disengaged from the slot. The driving assembly is used to drive the locking assembly to switch between the locked state and the unlocked state.

[0008] In one alternative embodiment, the driving component includes an unlocking component and an elastic element; the elastic element is disposed between the first slide groove and the locking component for driving the locking component to insert into the slot; the unlocking component is disposed on the handrail and is drivenly connected to the locking component for driving the locking component to disengage from the slot.

[0009] In one optional embodiment, the locking assembly includes a sliding part and a locking part, the sliding part being slidably connected to the first sliding groove; the locking part is disposed on the sliding part and is used to be inserted into any of the slots for locking; the bottom of the locking part is provided with a first inclined surface adapted to abut against the bottom wall.

[0010] In one optional embodiment, the upper side of the latch portion is provided with a second inclined surface, the slope of the second inclined surface being greater than the slope of the first inclined surface; when the latch assembly switches from the locked state to the unlocked state, the absolute value of the moving distance of the latch assembly driven by the unlocking assembly is less than or equal to the absolute value of the length of the latch portion.

[0011] In one optional embodiment, two locking parts are provided, and the two locking parts are spaced apart along a first direction for insertion into any two of the slots;

[0012] And / or, the upper and lower sidewalls of the first groove are parallel to the bottom wall.

[0013] In one optional embodiment, a second sliding groove is provided inside the handrail along a first direction, the second sliding groove is connected to the first sliding groove, the unlocking component is movably disposed in the second sliding groove, and the unlocking component has a mating inclined surface, and a driving rod is provided on the sliding part corresponding to the mating inclined surface; the mating inclined surface abuts against the driving rod, and is used to push the locking component to the unlocked state when the unlocking component moves upward.

[0014] In one alternative embodiment, the unlocking component includes a lever and an unlocking button; the lever is movably disposed within the second slide groove along a first direction;

[0015] An adjustment groove is provided on the handrail corresponding to the top of the pull rod along the first direction; the unlock button is movably disposed in the adjustment groove and connected to the pull rod to drive the pull rod to move upward; the mating inclined surface is disposed at the lower end of the pull rod.

[0016] In one optional embodiment, the handrail is provided with a second cavity, which communicates with the second slide groove; a fixing member is embedded in the second cavity, and the first slide groove is disposed in the fixing member; a plurality of snap-fit ​​holes are provided on the side of the second slide groove away from the slot, and the fixing member is provided with a connecting part for fitting into the snap-fit ​​holes; the axial direction of the snap-fit ​​holes and the arrangement direction of the second cavity are both parallel to the arrangement direction of the bottom wall.

[0017] In one optional embodiment, the armrest seat includes an armrest body and a female buckle liner, the female buckle liner being embedded in the armrest body along a first direction; the armrest bar is slidably inserted into the female buckle liner, and the slot is provided on the female buckle liner; a plurality of gap-eliminating plates are spaced apart along the length of the armrest bar.

[0018] Secondly, this utility model also provides a seat, comprising:

[0019] Seat body;

[0020] Two armrests are respectively installed on both sides of the seat body; the armrests are as described in any of the first aspects.

[0021] The technical solution of this utility model has at least the following technical effects:

[0022] 1. This utility model sets the bottom wall of the slot to be inclined upward from the outside to the inside, and the locking component abuts against the bottom wall in the same direction as the inclined direction of the bottom wall. This allows the locking component to be firmly locked to the bottom wall when the seat armrest is subjected to downward static pressure, preventing the locking component from coming out of the slot, thereby locking the height of the armrest and avoiding the situation where the armrest slides down due to failure, thus improving the stability when locked.

[0023] 2. This utility model uses a drive component to switch the locking component between the locked state and the unlocked state, so as to adjust the height of the handrail to suit people of different body types and improve comfort. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is an exploded view of a seat armrest according to an embodiment of the present utility model from a first-view perspective;

[0026] Figure 2 This is an exploded view of a seat armrest according to an embodiment of the present utility model from a second perspective;

[0027] Figure 3 This is a structural schematic diagram of a seat armrest from a third-person perspective, according to an embodiment of the present utility model.

[0028] Figure 4 for Figure 3Sectional view at point AA;

[0029] Figure 5 for Figure 4 Enlarged view of point B in the image;

[0030] Figure 6 This is a schematic diagram of the structure of the drive component according to an embodiment of the present utility model;

[0031] Figure 7 This is a structural schematic diagram of the locking assembly according to an embodiment of the present utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Armrest base; 101. Armrest body; 102. Socket liner; 1021. First cavity; 1022. Slot; 1023. Bottom wall; 2. Gap-eliminating plate; 3. Armrest bar; 4. First slide groove; 5. Locking assembly; 501. Sliding part; 502. Locking part; 503. Drive rod; 6. Drive assembly; 601. Unlocking assembly; 6011. Pull rod; 6012. Unlocking button; 602. Elastic element; 7. Second slide groove; 8. Adjustment groove; 9. Mating slope; 10. Second cavity; 11. Fixing element; 12. Connecting part; 13. Snap-fit ​​hole; 14. Second slope. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0039] According to an embodiment of the present invention, a seat armrest is provided, comprising: an armrest seat 1 having a first cavity 1021 extending to its top along a first direction; a plurality of slots 1022 spaced apart along the first direction on the sidewall of the first cavity 1021; each slot 1022 having a bottom wall 1023 extending from the outside to the inside along a second direction; the bottom wall 1023 being gradually inclined upwards; an armrest 3 slidably inserted into the first cavity 1021 along the first direction; a first sliding groove 4 provided in the armrest 3; the arrangement direction of the first sliding groove 4 being parallel to the arrangement direction of the bottom wall 1023; a locking mechanism including a locking assembly 5 and a driving assembly 6; the locking assembly 5 being slidably disposed in the first sliding groove 4; the locking assembly 5 having a locked state in which it is inserted into the slot 1022 and abuts against the bottom wall 1023, and an unlocked state in which it is disengaged from the slot 1022; and the driving assembly 6 being used to drive the locking assembly 5 to switch between the locked state and the unlocked state.

[0040] It should be noted that the first direction is perpendicular to the second direction, and the first direction extends in the vertical direction.

[0041] In this embodiment, the locking assembly 5 can be driven by the driving assembly 6 to move away from the slot 1022 in the first slide groove 4 until the locking assembly 5 disengages from the slot 1022 to the unlocked state. In this state, the armrest bar 3 can be pulled up or down along the first direction in the first cavity 1021 of the armrest seat 1 to adjust the height of the seat armrest. After the seat armrest is adjusted to the appropriate position, the locking assembly 5 can be driven by the driving assembly 6 to move closer to the slot 1022 in the first slide groove 4 until the locking assembly 5 is inserted into the slot 1022 of the corresponding height and abuts against the bottom wall 1023, thus making the locking assembly 5 and the slot 1022... In coordination with the locking mechanism, the armrest 3 is prevented from moving relative to the armrest seat 1. When the seat armrest is subjected to downward static pressure, the bottom wall 1023 in the slot 1022 is inclined upward from the outside to the inside, and the arrangement direction of the first sliding groove 4 is parallel or approximately parallel to the bottom wall 1023. This causes the locking assembly 5 to slide downward in an inclined manner in the locked state and abut against the bottom wall 1023. This reduces the force required for the locking assembly 5 to disengage from the slot 1022, effectively preventing the locking assembly 5 from disengaging from the slot 1022, thereby locking the height of the armrest 3 and preventing the armrest 3 from sliding down due to the failure of the armrest height locking mechanism, thus improving the stability of the locked state.

[0042] In one embodiment, such as Figures 4 to 7 As shown, the drive assembly 6 includes an unlocking assembly 601 and an elastic element 602; the elastic element 602 is disposed between the first slide groove 4 and the locking assembly 5, and is used to drive the locking assembly 5 to insert into the slot 1022; the unlocking assembly 601 is disposed on the handrail 3, and the unlocking assembly 601 is drivenly connected to the locking assembly 5, and is used to drive the locking assembly 5 to disengage from the slot 1022.

[0043] It should be noted that one end of the elastic element 602 abuts against the bottom of the first slide groove 4, and the other end abuts against the locking assembly 5.

[0044] In this embodiment, an elastic element 602 is provided between the first slide groove 4 and the locking assembly 5 to provide driving force for the locking assembly 5 to slide into the insertion slot 1022. The elastic element 602 is always in a tensioned state, and its elastic force can also provide pre-tightening force after the locking assembly 5 is inserted into the slot 1022, so that the locking assembly 5 is firmly locked in the slot 1022. When it is necessary to unlock, the unlocking component 601 drives the locking assembly 5 to overcome the force of the elastic element 602 and disengage from the slot 1022, so as to adjust the height of the handrail 3.

[0045] In one embodiment, such as Figures 5 to 7As shown, the locking assembly 5 includes a sliding part 501 and a locking part 502. The sliding part 501 is slidably connected to the first sliding groove 4. The locking part 502 is disposed on the sliding part 501 and is used to be inserted into any of the slots 1022 for locking. The bottom of the locking part 502 is provided with a first inclined surface that is adapted to and abuts against the bottom wall 1023.

[0046] It should be noted that the locking part 502 is located on the side of the sliding part 501 facing the slot 1022, and the elastic element 602 is located on the side of the sliding part 501 away from the slot 1022.

[0047] In this embodiment, when locking, the sliding part 501 is driven to move towards the slot 1022 in the first sliding groove 4 under the action of the elastic member 602, so that the locking part 502 is inserted into a slot 1022 of the corresponding height, and the first inclined surface at the bottom of the locking part 502 abuts against the bottom wall 1023 to form an inverted buckle, preventing the locking part 502 from falling out of the slot 1022, improving the stability when locking, and avoiding failure and slippage of the seat armrest when subjected to large static pressure.

[0048] In one embodiment, the upper side of the latch portion 502 is provided with a second inclined surface 14, the slope of the second inclined surface 14 being greater than the slope of the first inclined surface; when the latch assembly 5 switches from the locked state to the unlocked state, the absolute value of the distance by which the unlocking assembly 601 drives the latch assembly 5 to move is less than or equal to the absolute value of the length of the latch portion 502.

[0049] In this embodiment, by setting the absolute value of the length of the latching part 502 to be greater than or equal to the absolute value of the moving distance of the unlocking component 601 driving the latching component 5, when the unlocking component 601 drives the latching component 5 to move to the unlocked state in the first slide groove 4, the latching part 502 has not yet completely disengaged from the slot 1022. At this time, the second inclined surface 14 on the upper side of the latching part 502 corresponds to the top side wall of the slot 1022, so that when the handrail 3 moves upward, the top side wall of the slot 1022 abuts against the second inclined surface 14. The slope of the second inclined surface 14 gradually increases from the outside to the inside. The tilt setting reduces the difficulty of the locking assembly 5 disengaging from the slot 1022, while providing driving force for the compression elastic element 602, pushing the locking assembly 5 to continue moving into the first slide groove 4 until the locking part 502 disengages from the slot 1022. The setting of the second inclined surface 14 and the length of the locking part 502 makes it easier for the locking assembly 5 to disengage from the slot 1022 when unlocking. Furthermore, the length of the locking part 502 allows for feedback with a shift sound when the second inclined surface 14 abuts against the slot 1022 or the armrest seat 1, improving the user experience.

[0050] In one embodiment, such as Figure 7As shown, there are two locking parts 502, which are spaced apart along the first direction and are used to be inserted into any two card slots 1022.

[0051] In this embodiment, by providing two locking parts 502, when locked, the two locking parts 502 can cooperate with two adjacent or non-adjacent slots 1022 to improve support strength and thus improve stability.

[0052] In one embodiment, such as Figure 5 As shown, the upper and lower sidewalls of the first groove 4 are parallel to the bottom wall 1023.

[0053] It should be noted that the upper and lower sides of the sliding part 501 are parallel or approximately parallel to the bottom wall 1023, and the upper and lower sides of the sliding part 501 respectively abut against the upper and lower side walls of the first sliding groove 4.

[0054] In this embodiment, the upper and lower sidewalls of the first slide groove 4 are parallel to the bottom wall 1023, i.e., they are set in an inclined state. The upper and lower sidewalls of the sliding part 501 are also roughly parallel to the inclined direction of the bottom wall 1023. The upper and lower sides of the sliding part 501 abut against the upper and lower sidewalls of the first slide groove 4, respectively, to ensure that the sliding direction of the sliding part 501 is consistent with the inclined direction of the bottom wall 1023. This makes the sliding part 501 tend to move downward toward the slot 1022, which can reduce the force in the direction of the locking part 502 disengaging from the slot 1022, effectively prevent the locking part 502 from disengaging from the slot 1022, and improve the stability of the locking part 502 when it is engaged with the slot 1022.

[0055] In one embodiment, such as Figure 4 and Figure 6 As shown, a second slide groove 7 is provided inside the handrail 3 along the first direction. The second slide groove 7 is connected to the first slide groove 4. The unlocking component 601 is movably disposed in the second slide groove 7, and the unlocking component 601 has a mating inclined surface 9. A drive rod 503 is provided on the sliding part 501 corresponding to the mating inclined surface 9. The mating inclined surface 9 abuts against the drive rod 503 and is used to push the locking component 5 to the unlocked state when the unlocking component 601 moves upward.

[0056] It should be noted that the inclined surface 9 is located on the side of the drive rod 503 facing the slot 1022.

[0057] In this embodiment, the unlocking component 601 is movably disposed within the second slide groove 7 and abuts against the drive rod 503 on the sliding part 501 via the mating inclined surface 9. When unlocking is required, the unlocking component 601 moves upward within the second slide groove 7, causing the mating inclined surface 9 to drive the drive rod 503 to move away from the slot 1022. This, in turn, causes the sliding part 501 to overcome the elastic force of the elastic member 602 and move away from the slot 1022 until the locking part 502 disengages from the slot 1022. The height of the handrail 3 is easily adjustable. When the handrail 3 is adjusted to a suitable height, the force of the unlocking component 601 is released, and the drive rod 503 can abut against the mating inclined surface 9 and pull the unlocking component 601 downward. Under the elastic action of the elastic element 602, the sliding part 501 is driven to move towards the slot 1022, so that the locking part 502 is inserted into the slot 1022. During this process, the drive rod 503 abuts against the mating inclined surface 9, so that the unlocking component 601 is subjected to a downward force and moves downward.

[0058] In one embodiment, such as Figure 4 and Figure 6 As shown, the unlocking component 601 includes a pull rod 6011 and an unlocking button 6012; the pull rod 6011 is movably disposed in the second slide groove 7 along the first direction; the handrail 3 is provided with an adjustment groove 8 corresponding to the top of the pull rod 6011 along the first direction; the unlocking button 6012 is movably disposed in the adjustment groove 8 and connected to the pull rod 6011 for driving the pull rod 6011 to move upward; the inclined surface 9 is disposed at the lower end of the pull rod 6011.

[0059] In this embodiment, a pull rod 6011 is movably disposed within the second slide groove 7 of the handrail 3, and the pull rod 6011 is connected to the unlock button 6012. Simultaneously, the mating inclined surface 9 at the lower end of the pull rod 6011 abuts against the drive rod 503 on the sliding part 501. When unlocking is required, the pull rod 6011 is pulled upward within the second slide groove 7 by the unlock button 6012, causing the mating inclined surface 9 to drive the drive rod 503 to move away from the slot 1022. This, in turn, causes the sliding part 501 to overcome the elastic force of the elastic member 602 and move away from the slot. Move in the direction of 1022 until the locking part 502 disengages from the slot 1022 to facilitate the adjustment of the height of the handrail 3; after the handrail 3 is adjusted to a suitable height, release the unlock button 6012, and under the elastic action of the elastic member 602, drive the sliding part 501 to move towards the slot 1022, so that the locking part 502 is inserted into the slot 1022. During this process, the drive rod 503 abuts against the inclined surface 9, so that the pull rod 6011 is subjected to a downward force, and pulls the unlock button 6012 to slide to the lower limit in the adjustment groove 8.

[0060] Specifically, there are two drive rods 503, which are symmetrically arranged on both sides of the sliding part 501, and there are two corresponding inclined surfaces 9 to improve stability.

[0061] Specifically, when the unlock button 6012 is in motion in the adjustment groove 8, the elastic element 602 has a first potential energy to drive the sliding part 501 to move in the direction of the slot 1022, and the drive rod 503 has a second potential energy to press down on the mating inclined surface 9.

[0062] In this embodiment, when the unlock button 6012 is in the adjustment groove 8, the elastic element 602 is always in a tensioned state. When unlocking, a force is applied to the unlock button 6012 to drive the pull rod 6011 upward. The upward force of the pull rod 6011 needs to overcome the resultant force of the second potential energy generated by the drive rod 503 on the mating inclined surface 9 and the force generated by the slot 1022 abutting against the second inclined surface 14, so that the pull rod 6011 can move upward. At the same time, the first potential energy generated by the elastic element 602 on the sliding part 501 is overcome by the mating inclined surface 9, and the elastic element 602 is compressed to make the locking part 502 move away from the slot 1022 to unlock. When the force applied to the unlock button 6012 is released, under the action of the first potential energy of the elastic element 602 driving the sliding part 501 to move towards the slot 1022, the drive rod 503 is driven to press the mating inclined surface downward. 9. This causes the pull rod 6011 to move downwards and drive the unlock button 6012 to move downwards within the adjustment groove 8. When the locking part 502 is inserted into the slot 1022 and the unlock button 6012 reaches the lower limit of the adjustment groove 8, the elastic element 602 still has the first potential energy to drive the sliding part 501 to move towards the slot 1022, making the sliding part 501 tend to move towards the slot 1022. At this time, the drive rod 503 is still abutting against the mating inclined surface 9. The force of the elastic element 602 is transmitted to the mating inclined surface 9 through the drive rod 503, making the drive rod 503 have the second potential energy to press down on the mating inclined surface 9, so that the pull rod 6011 is subjected to a downward pulling force and has a tendency to move downwards. Since the unlock button 6012 has reached the lower limit, the whole is in a taut state, preventing loosening when subjected to vibration or external force, and improving the overall stability.

[0063] In one embodiment, such as Figure 1 and Figure 5 As shown, the handrail 3 is provided with a second cavity 10, which is connected to the second slide groove 7; a fixing member 11 is embedded in the second cavity 10, and the first slide groove 4 is disposed in the fixing member 11; a plurality of snap-fit ​​holes 13 are provided on the side of the second slide groove 7 away from the snap-fit ​​groove 1022, and the fixing member 11 is provided with a connecting part 12 for fitting into the snap-fit ​​holes 13; the axial direction of the snap-fit ​​holes 13 and the arrangement direction of the second cavity 10 are both parallel to the arrangement direction of the bottom wall 1023.

[0064] In this embodiment, a second cavity 10 is provided on the handrail 3 for installing the fixing member 11, and the first sliding groove 4 is located inside the fixing member 11, which facilitates disassembly and maintenance. The fixing member 11 is embedded in the second cavity 10 through the connecting part 12 and the snap-fit ​​hole 13. The axial direction of the snap-fit ​​hole 13 and the arrangement direction of the second cavity 10 are both parallel to the arrangement direction of the bottom wall 1023, which improves the stability of the locking assembly 5 when locking.

[0065] Specifically, the side wall of the fastener 11 is provided with a slot for the drive rod 503 to extend and move.

[0066] Specifically, the elastic element 602 is a compression spring.

[0067] Specifically, the sliding part 501 has a mounting hole on the side opposite to the locking part 502, and the bottom of the first sliding groove 4 has a mounting block protruding from the mounting hole; one end of the compression spring is sleeved on the mounting block, and the other end is embedded in the mounting hole; to ensure the stability of the compression spring connection and to prevent it from falling off during use.

[0068] In one embodiment, such as Figure 1 and Figure 2 As shown, the handrail seat 1 includes a handrail body 101 and a female buckle liner 102. The female buckle liner 102 is embedded in the handrail body 101 along a first direction. The handrail bar 3 is slidably inserted into the female buckle liner 102, and a slot 1022 is provided on the female buckle liner 102. Multiple gap-eliminating pieces 2 are spaced along the length of the handrail bar 3.

[0069] In this embodiment, the armrest seat 1 is composed of an armrest body 101 and a female buckle liner 102. The female buckle liner 102 forms a first cavity 1021, which is convenient for maintenance. When the slot 1022 is worn or damaged, only the female buckle liner 102 needs to be replaced, which reduces maintenance costs and facilitates processing and production. At the same time, the armrest 3 slides with the first cavity 1021 through the gap elimination plate 2, eliminating the gap between the armrest 3 and the first cavity 1021 and improving the stability of the armrest 3 when adjusting its height.

[0070] The specific working principle of the seat armrest provided in this embodiment is as follows: When it is necessary to adjust the height of the armrest bar 3, the pull rod 6011 is pulled upward by unlocking button 6012, so that the driving rod 503 driven by the inclined surface 9 drives the sliding part 501 to compress the elastic element 602 in the direction away from the slot 1022, until the locking part 502 disengages from the slot 1022. Then, the armrest bar 3 can be pulled up or down along the first direction in the first cavity 1021 of the armrest seat 1 to adjust the height; when adjusted to the desired height... Once in the appropriate position, release the unlock button 6012. Under the elastic action of the elastic element 602, the sliding part 501 is driven to move towards the slot 1022, causing the locking part 502 to insert into the slot 1022. During this process, the drive rod 503 abuts against the inclined surface 9, causing the pull rod 6011 to be subjected to a downward force, which pulls the unlock button 6012 to slide in the adjustment groove 8 to the lower limit until the locking part 502 is inserted into the slot 1022 at the corresponding height and abuts against the bottom wall 1023. This allows the locking part 502 to engage with the slot 1022 and lock tightly, preventing the handrail 3 from moving relative to the handrail seat 1. When the handrail 3 is subjected to downward static pressure, the first inclined surface of the locking part 502 engages with the bottom wall 1023 to form an inverted latch, and the arrangement direction of the first sliding groove 4 is parallel to the bottom wall 1023. This causes the locking assembly 5 to slide downwards at an angle in the locked state and abut against the bottom wall 1023, which can reduce the force that causes the locking part 502 to disengage from the slot 1022 and effectively prevent the locking part 502 from moving away from the slot 1022. The armrest bar 3 disengages from the slot 1022, and the force of the elastic element 602 is transmitted to the pull rod 6011 through the inclined surface 9, so that the whole is in a tensile state to prevent loosening. This locks the height of the armrest bar 3, preventing the armrest bar 3 from sliding down due to the failure of the armrest height locking, improving the stability of the locking state, and solving the problem that the existing seat armrests are prone to failure when subjected to large static pressure, making it difficult to stably lock the height and causing the armrest bar 3 to slip down, resulting in poor stability.

[0071] According to an embodiment of the present invention, another aspect provides a seat, comprising: a seat body; two seat armrests respectively installed on both sides of the seat body; the seat armrests adopt the seat armrests as described in any embodiment of the first aspect.

[0072] In this embodiment, armrests are provided on both sides of the main body of the seat so that the user's hands can be supported when sitting, and the height can be adjusted to adapt to people of different body types, thereby improving comfort. In addition, the seat adopts the armrests of any embodiment of the first aspect, and the specific structure of the armrests is the same as that of the armrests of any embodiment of the first aspect, so that the seat with the armrests has at least the same technical effect as the armrests described above. The specific principle is the same as that of any embodiment of the first aspect, and will not be described in detail here.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A type of armrest for a seat, characterized in that, include: The armrest seat (1) has a first cavity (1021) that extends to its top along a first direction. The sidewall of the first cavity (1021) is provided with a plurality of slots (1022) spaced apart along the first direction. The slots (1022) have a bottom wall (1023) that extends from the outside to the inside along a second direction. The bottom wall (1023) is gradually inclined upward. The handrail (3) is slidably inserted into the first cavity (1021) along the first direction; the handrail (3) is provided with a first groove (4), and the arrangement direction of the first groove (4) is parallel to the arrangement direction of the bottom wall (1023); The locking mechanism includes a locking assembly (5) and a driving assembly (6). The locking assembly (5) is slidably disposed in the first slide groove (4). The locking assembly (5) has a locked state in which it is inserted into the slot (1022) and abuts against the bottom wall (1023), and an unlocked state in which it is disengaged from the slot (1022). The driving assembly (6) is used to drive the locking assembly (5) to switch between the locked state and the unlocked state.

2. The armrest of the seat according to claim 1, characterized in that, The driving component (6) includes an unlocking component (601) and an elastic element (602); the elastic element (602) is disposed between the first slide groove (4) and the locking component (5) for driving the locking component (5) to insert into the slot (1022); the unlocking component (601) is disposed on the handrail (3) and is drivenly connected to the locking component (5) for driving the locking component to disengage from the slot (1022).

3. The armrest of the seat according to claim 2, characterized in that, The locking assembly (5) includes a sliding part (501) and a locking part (502). The sliding part (501) is slidably connected to the first sliding groove (4). The locking part (502) is disposed on the sliding part (501) and is used to insert into any of the slots (1022) for locking. The bottom of the locking part (502) is provided with a first inclined surface that is adapted to and abuts against the bottom wall (1023).

4. The armrest of the seat according to claim 3, characterized in that, The upper side of the latch (502) is provided with a second inclined surface (14), the slope of the second inclined surface (14) is greater than the slope of the first inclined surface; when the latch assembly (5) switches from the locked state to the unlocked state, the absolute value of the moving distance of the latch assembly (5) driven by the unlocking assembly (601) is less than or equal to the absolute value of the length of the latch (502).

5. The armrest of the seat according to claim 3, characterized in that, Two locking parts (502) are provided, and the two locking parts are spaced apart along the first direction for insertion into any two of the card slots (1022); And / or, the upper and lower sidewalls of the first groove (4) are parallel to the bottom wall (1023).

6. The armrest of the seat according to claim 3, characterized in that, The handrail (3) is provided with a second sliding groove (7) along the first direction. The second sliding groove (7) is connected to the first sliding groove (4). The unlocking component (601) is movably disposed in the second sliding groove (7). The unlocking component (601) has a mating inclined surface (9). The sliding part (501) is provided with a driving rod (503) corresponding to the mating inclined surface (9). The mating inclined surface (9) abuts against the driving rod (503) and is used to push the locking component (5) to the unlocked state when the unlocking component (601) moves upward.

7. The armrest of the seat according to claim 6, characterized in that, The unlocking component (601) includes a lever (6011) and an unlocking button (6012); the lever (6011) is movably disposed in the second slide groove (7) along a first direction; The handrail (3) has an adjustment groove (8) along the first direction corresponding to the top of the pull rod (6011); the unlock button (6012) is movably disposed in the adjustment groove (8) and connected to the pull rod (6011) to drive the pull rod (6011) to move upward; the mating inclined surface (9) is disposed at the lower end of the pull rod (6011).

8. The armrest of the seat according to claim 6, characterized in that, The handrail (3) is provided with a second cavity (10), which is connected to the second slide groove (7); a fixing member (11) is embedded in the second cavity (10), and the first slide groove (4) is disposed in the fixing member (11); a plurality of snap-fit ​​holes (13) are provided on the side of the second slide groove (7) away from the slot (1022), and a connecting part (12) for fitting into the snap-fit ​​hole (13) is provided on the fixing member (11); the axial direction of the snap-fit ​​hole (13) and the arrangement direction of the second cavity (10) are both parallel to the arrangement direction of the bottom wall (1023).

9. The armrest of a seat according to any one of claims 1 to 8, characterized in that, The armrest seat (1) includes an armrest body (101) and a female buckle liner (102). The female buckle liner (102) is embedded in the armrest body (101) along a first direction. The armrest bar (3) is slidably inserted into the female buckle liner (102), and the slot (1022) is provided on the female buckle liner (102). The armrest bar (3) has a plurality of gap-eliminating pieces (2) spaced along its length on its periphery.

10. A type of seat, characterized in that, include: Seat body; Two armrests are installed on both sides of the main body of the seat; The seat armrest is the type of seat armrest as described in any one of claims 1 to 9.

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