Seat armrest capable of being adjusted in swinging mode

Abstract

A seat armrest capable of being adjusted in a swinging mode comprises an installation base and a lifting base movably connected to the installation base, an armrest frame is arranged above the lifting base, an armrest supporting plate capable of swinging is arranged on the armrest frame, a shaft piece connecting piece is arranged at the upper end of the armrest frame, a movable shaft piece is arranged on the shaft piece connecting piece, and the movable shaft piece is connected with the lifting base. A swing connecting piece matched with the shaft connecting piece in an inserted mode is arranged on the bottom face of the armrest supporting plate, the swing connecting piece can swing with the shaft as a rotating shaft, and a pressing piece and a locking piece are arranged at the two ends of the shaft respectively. A plurality of locking nodes which are distributed along the swing track of the armrest supporting plate and located on the side portion of the shaft piece are arranged on the swing connecting piece and the shaft piece connecting piece in a penetrating mode at the same time, when the locking nodes are combined with the locking pieces, the armrest supporting plate is prevented from swinging, a maintaining piece is arranged on the swing connecting piece, and the maintaining piece acts on the pressing piece to maintain the unlocking state of the pressing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a swingable and adjustable seat armrest. Background Art

[0002] A chair is a kind of furniture for daily life, a kind of seat with a backrest and armrests. The structure of a chair generally includes: a support leg and a seat cushion connected to the support leg, and a backrest support connected to the seat cushion or the support leg, a backrest and a lumbar support are installed on the backrest support, and an armrest is installed on the seat cushion.

[0003] Publication (Announcement) No.: CN110063607A discloses a chair armrest and a method for achieving multi-posture support for arms, the chair armrest includes an elbow-supporting section for supporting the user's elbow and an arm-supporting section for supporting the user's forearm, wherein the elbow-supporting section is connected to the chair; the arm-supporting section is connected to the elbow-supporting section through a movable connection structure, and the arm-supporting section can rotate around the movable connection structure toward the space above the elbow-supporting section; a hovering locking mechanism is provided between the elbow-supporting section and the arm-supporting section to lock the rotated arm-supporting section. The implementation method includes the following steps: the chair armrest is provided with an elbow-supporting section and an arm-supporting section, and the arm-supporting section can rotate relative to the elbow-supporting section toward the space above the elbow-supporting section; when the posture of the forearm needs to be adjusted, the arm-supporting section is rotated to a position that can meet the posture support of the forearm, and is locked using the hovering locking mechanism; the chair armrest can hover at a suitable height position according to the user's needs, providing adaptive and comfortable support for the user's arm. Although the armrest section of the chair armrest can be rotated upward to any position relative to the armrest section and then suspended to achieve angle adjustment of the armrest section; however, its internal structure is relatively complex, and a pull rope is arranged inside it, which is easily worn out after long-term use and has a short service life; and the armrest needs to be divided into two sections, and the elbow section must be fixed to achieve rotation adjustment of the arm section, and the overall rotation of the armrest cannot be achieved; and when the armrest is adjusted, the angle between the elbow section and the arm section will increase, which is uncomfortable to use, resulting in increased costs. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a swingable and adjustable chair armrest to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve its technical problems: the chair armrest that can be swung and adjusted comprises a mounting seat and a lifting seat that is movably connected to the mounting seat, an armrest frame is arranged above the lifting seat, a swingable armrest supporting plate is arranged on the armrest frame, an axle connecting piece is arranged at the upper end of the armrest frame, a movable axle is arranged on the axle connecting piece, a swing connecting piece plug-inly matched with the axle connecting piece is arranged on the bottom surface of the armrest supporting plate, the swing connecting piece can swing with the axle as the rotating axis, a pressing piece and a locking piece are respectively arranged at both ends of the axle, a plurality of locking nodes distributed along the swinging track of the armrest supporting plate and located on the side of the axle are simultaneously penetrated on the swing connecting piece and the axle connecting piece, the armrest supporting plate is prevented from swinging when the locking node is combined with the locking piece, a retaining piece is arranged on the swing connecting piece, the retaining piece acts on the pressing piece to keep the pressing piece in an unlocked state.

[0006] Further improvement, the swing connecting piece has an installation cavity, and the swing connecting piece is provided with a lower end opening and an upper end opening which are interconnected with the installation cavity, the lower end opening is for the shaft connecting piece and part of the handrail frame to be placed in the installation cavity, and the first fixed body and the second fixed body are respectively provided on the two inner side walls of the installation cavity, and there is an insertion spacing between the first fixed body and the second fixed body for the shaft connecting piece to be placed therein, the shaft moves on the first fixed body and the second fixed body at the same time, and the locking node is provided on the second fixed body.

[0007] For further improvement, a guide surface matching the swing trajectory of the armrest support plate is provided on the upper end surface of the armrest frame, and a plurality of positioning grooves distributed along the swing trajectory of the armrest support plate and recessed downward are provided on the guide surface. A retractable reminder member that can be squeezed is provided in the second fixed body. The reminder member is squeezed and retracted when switching between two adjacent positioning grooves, and the swinging armrest support plate has swinging resistance.

[0008] For further improvement, a guide protrusion is provided on the guide surface between two adjacent positioning grooves, and the guide protrusion and the positioning groove form a corrugated configuration so that the prompt member has continuity when switching positions between the guide protrusion and the positioning groove, and the prompt member is squeezed and retracted when it abuts against the guide protrusion.

[0009] To be further improved, the prompt member includes a spring and an abutment block connected to the spring, an extension body extending downward is provided on the second fixed body, an inner cavity with an assembly base surface is provided in the extension body, part of the spring is placed in the inner cavity and fixed on the assembly base surface, the abutment block switches its position between the guide protrusion and the positioning groove, and enters the inner cavity when the spring retracts.

[0010] For further improvement, the swing connection piece is provided with a buried groove on the outer side surface corresponding to the pressing piece and the locking piece, the pressing piece is placed in the corresponding buried groove when in the unlocked state, the locking piece is placed in the corresponding buried groove when in the locked state, and when placed in the buried groove, the retaining piece holds the locking piece in the buried groove.

[0011] To be further improved, the outer shape of the retaining member is consistent with that of the swinging connecting member, and is provided with a slot that matches the position of the buried groove and allows the pressing member to pass through synchronously, so that when the pressing member is placed in the corresponding buried groove, the slot and the buried groove can be misaligned by movement.

[0012] The beneficial effects of the utility model are:

[0013] 1. The armrest support plate of the utility model can swing forward or backward to provide support for the user's forearm in different postures, and will approach a horizontal state to cater to the forearm to prevent the forearm from sliding off the armrest, thereby achieving a better use effect.

[0014] 2. In order to facilitate the swing adjustment of the armrest support plate, the utility model provides a retaining member on the swing connecting member. The retaining member acts on the pressing member after the pressing member is pressed, so that the locking member can always be separated from the locking node. When operating the armrest support plate to swing, there is no need to hold the pressing member with one hand and operate the armrest support plate with the other hand, which improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the utility model in full section;

[0018] Figure 4 It is a schematic diagram of the exploded structure of the left side of the handrail support plate of the utility model;

[0019] Figure 5 It is a schematic diagram of the exploded structure of the right side of the handrail support plate of the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the use state when it is applied to a seat. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Referring to the accompanying drawings: this swingable and adjustable chair armrest comprises a mounting seat 1 and a lifting seat 2 movably connected to the mounting seat 1, an armrest frame 3 is arranged above the lifting seat 2, a swingable armrest support plate 4 is arranged on the armrest frame 3, an axis connecting member 5 is arranged at the upper end of the armrest frame 3, a movable axis 51 is arranged on the axis connecting member 5, a swing connecting member 6 which is plugged into and matched with the axis connecting member 5 is arranged on the bottom surface of the armrest support plate 4, the swing connecting member 6 can swing with the axis 51 as the rotating axis, and pressing members 7 and locking members 8 are respectively arranged at both ends of the axis 51, a plurality of locking nodes 9 distributed along the swinging trajectory of the armrest support plate 4 and located on the side of the axis 51 are simultaneously penetrated on the swing connecting member 6 and the axis connecting member 5, the locking nodes 9 are arranged on the side of the axis 51, and the armrest support plate 4 is prevented from swinging when the locking nodes 9 are combined with the locking members 8, a retaining member 10 is arranged on the swing connecting member 6, and the retaining member 10 acts on the pressing member 7 to keep the pressing member 7 in an unlocked state. The principle of the utility model is that the armrest support plate 4 utilizes its own swing connection piece 6 and the shaft connection piece 5 arranged on the armrest frame 3 to achieve plug-in cooperation, and realizes the swing of the armrest support plate 4 through the shaft piece 51, and the shaft piece 51 can also move, that is, the locking piece 8 and the locking node 9 are combined (locked) or released (unlocked) by movement, and the pressing piece 7 is used to increase the force area, which is convenient for the user to operate the movement of the shaft piece 51, and in order to facilitate the swing adjustment of the armrest support plate 4, a retaining piece 10 is provided on the swing connection piece 6, and the retaining piece 10 acts on the pressing piece 7 after the pressing piece 7 is pressed, so that the locking piece 8 can always be separated from the locking node 9, and when operating the armrest support plate 4 to swing, there is no need to press the pressing piece 7 with one hand and operate the armrest support plate 4 with the other hand, thereby improving convenience. In this embodiment, the locking node 9 is set as a circular hole, and the pressing member 7 and the locking member 8 have the same configuration, both of which are blocks with a shape configuration and are hollow inside. The only difference is that a cylindrical insertion rod extending outward is provided in the hollow area of ​​the locking member 8, and when the two are combined, the cylindrical insertion rod is inserted into the circular hole.

[0023] The swing connector 6 has an installation cavity 61. The swing connector 6 is provided with a lower end opening 61-a and an upper end opening which are interconnected with the installation cavity 61. The lower end opening 61-a is for the shaft connector 5 and part of the handrail frame 3 to be placed in the installation cavity 61. The two inner side walls of the installation cavity 61 are respectively provided with a first fixed body 61-c and a second fixed body 61-d. There is an insertion spacing between the first fixed body 61-c and the second fixed body 61-d for the shaft connector 5 to be placed therein. The shaft 51 moves on the first fixed body 61-c and the second fixed body 61-d at the same time. The locking node 9 is provided on the second fixed body 61-c. d, such a setting can realize the plug-in fit of the swing connector 6 and the shaft connector 5, that is, they are clamped between the first fixed body 61-c and the second fixed body 61-d, and the two can produce a certain tight effect when cooperating with the shaft connector 5. The tight effect enables the armrest support plate 4 to swing without the constraint of the shaft 51. This method makes it convenient to set the shaft 51 on both of them at the same time after the two are plug-in fit, and the locking node 9 is also set on the second fixed body 61-d at the same time, so that the locking member 8 can act on the shaft connector 5 and the second fixed body 61-d at the same time.

[0024] A guide surface 31 matching the swing trajectory of the armrest support plate 4 is provided on the upper end surface of the armrest frame 3, and a plurality of positioning grooves 31-a distributed along the swing trajectory of the armrest support plate 4 and recessed downward are provided on the guide surface 31. A reminder piece 20 that can be squeezed and retracted is provided in the second fixed body 61-d. When the reminder piece 20 switches between two adjacent positioning grooves 31-a, it is squeezed and retracted, and the swinging armrest support plate 4 has a swing resistance. Such a setting is based on the consideration that the locking node 9 is not visible when the user sits on the seat, and is visible only when the user leaves the seat and squats to the armrest position. At the same time, the locking piece 8 and the locking node 9 are visible in a non-combined state, but this method is too cumbersome, so the reminder piece 20 is provided on the second fixed body 61-d, and it needs to be aligned with the positioning groove 3 1-a (the number of positioning grooves 31-a is consistent with the number of locking nodes 9) combined in a manner to play a prompt role, because the positioning groove 31-a is recessed downward, then the positioning groove 31-a has a depth based on the guide surface 31, and the prompt member 20 placed in the positioning groove 31-a is in a state without any retraction change, then the prompt member 20 will retract in the process of leaving the positioning groove 31-a, and the retraction requires a certain extrusion force, and the generated extrusion force will also become a resistance, that is, it will appropriately reduce the smoothness of the armrest support plate 4, and when the prompt member 20 enters another positioning groove 31-a, the resistance will disappear and can be clearly felt by the user, so that the adjusted locking action can be quickly completed even in an invisible situation.

[0025] There is a guide protrusion 31-b arranged on the guide surface 31 between two adjacent positioning grooves 31-a, and the guide protrusion 31-b and the positioning groove 31-a form a corrugated configuration so that the prompt member 20 has continuity when switching positions between the guide protrusion 31-b and the positioning groove 31-a, and the prompt member 20 is squeezed and retracted when it abuts against the guide protrusion 31-b, that is, the guide protrusion 31-b is used to enable the prompt member 20 to maintain a retracted state after it is separated from the positioning groove 31-a, and a guide slope is formed between the guide protrusion and the positioning groove 31-a. The guide slope makes the retraction change of the prompt member 20 from the positioning groove 31-a or the release change of entering the positioning groove 31-a gradual, which can prolong the prompt effect, that is, the prompt feeling can be clearly felt by the user when the prompt member 20 enters another positioning groove 31-a.

[0026] The prompting member 20 includes a spring 201 and an abutment block 202 connected to the spring 201. The second fixed body 61-d is provided with an extension body 61-d1 extending downward. The extension body 61-d1 is provided with an inner cavity 61-d11 having an assembly base surface 61-d111. Part of the spring 201 is placed in the inner cavity 61-d11 and fixed on the assembly base surface 61-d111. The abutment block 202 switches between the guide protrusion 31-b and the positioning groove 31-a, and enters the inner cavity 61-d11 when the spring 201 retracts. -d11, that is, the spring 201 is used to make the prompt member 20 have the ability to retract when squeezed, and can release itself after the squeezing is released. The abutment block 202 makes the prompt member 20 have a structure that contacts with the guide slope and abuts with the guide protrusion 31-b. At the same time, the prompt member 20 is arranged in the inner cavity 61-d11 of the extension body 61-d1 to prevent the spring 201 from swinging when it retracts, so that the swing of the spring 201 will not interfere with the swing of the armrest support plate 4.

[0027] The swing connection member 6 is provided with a buried groove 62 on the outer side corresponding to the pressing member 7 and the locking member 8. The pressing member 7 is placed in the corresponding buried groove 62 when in the unlocked state, and the locking member 8 is placed in the corresponding buried groove 62 when in the locked state. The buried groove 62 has a fixed depth on the swing connection member 6. The fixed depth limits the movement distance of the pressing member 7 under the influence of the pressing force, which is also the movement distance of the shaft member 51. The pressing member 7 can be placed in the buried groove 62 after the driving shaft member 51 moves toward the unlocking direction, so that the retaining member 10 can act on the pressing member 7 to prevent it from escaping from the buried groove 62. At the same time, a spring sleeved on the shaft member 51 is also provided in the buried groove 62. The spring makes the shaft member 51 have a self-resetting effect, that is, the locking member 8 can automatically enter the locking node 9 after the retaining member 10 is released. The arrangement of placing the locking member 8 in the buried groove 62 in the locked state can shorten the cylindrical plug rod of the locking member 8. The shortened length can improve its structural strength, that is, it is not easy to break or damage.

[0028] The outer shape and configuration of the retaining member 10 are consistent with that of the swing connecting member 6, and a slot 101 is provided which matches the position of the buried groove 62 and can be synchronously passed through by the pressing member 7, so that when the pressing member 7 is placed in the corresponding buried groove 62, the slot 101 and the buried groove 62 are misaligned by movement. The retaining member 10 is movably arranged on the swing connecting member 6, that is, the inner side surface of the retaining member 10 is provided with sliders 102 symmetrically distributed on both sides of the slot 101, and the swing connecting member 6 is provided with slide rails 63 symmetrically distributed on both sides of the buried groove 62, and the slide rails 63 are divided into a sliding section 63-a and a locking section 63-b along the guide, and the slider 1 02 and the sliding section 63-a have a clearance fit, and the locking section 63-b has an interference fit, that is, the fitting clearance of the sliding cavity of the slider 102 and the slide rail 63 gradually decreases along the assembly guide, so that the change of the groove width is linear, while ensuring that the retaining member 10 can slide normally, it can also achieve locking, that is, the sliding section 63-a slides, and when it is tightly fitted with the locking section 63-b, it can prevent the retaining member 10 from continuing to move, thereby achieving misalignment of the slot 101 and the buried groove 62, and the retaining member 10 is used to keep the pressing member 7 in the buried groove 62. At the same time, the tight fit can also prevent the retaining member 10 from detaching from the assembly direction.

[0029] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A swingable and adjustable chair armrest, comprising a mounting seat (1), and a lifting seat (2) movably connected to the mounting seat (1), an armrest frame (3) being arranged above the lifting seat (2), and a swingable armrest support plate (4) being arranged on the armrest frame (3), characterized in that: The upper end of the armrest frame (3) is provided with a shaft connecting member (5), and a movable shaft (51) is provided on the shaft connecting member (5). The bottom surface of the armrest support plate (4) is provided with a swing connecting member (6) plugged into and matched with the shaft connecting member (5). The swing connecting member (6) is swingable with the shaft (51) as a rotation axis. Both ends of the shaft (51) are provided with a pressing member (7) and a locking member (8). The swing connecting member (6) and the shaft connecting member (5) are simultaneously penetrated by a plurality of locking nodes (9) distributed along the swinging trajectory of the armrest support plate (4) and located on the side of the shaft (51). When the locking node (9) is combined with the locking member (8), the armrest support plate (4) is prevented from swinging. The swing connecting member (6) is provided with a retaining member (10), and the retaining member (10) acts on the pressing member (7) to keep the pressing member (7) in an unlocked state.

2. The swing-adjustable chair armrest according to claim 1, characterized in that: The swing connection member (6) has a mounting cavity (61). The swing connection member (6) is provided with a lower end opening (61-a) and an upper end opening which are interconnected with the mounting cavity (61). The lower end opening (61-a) allows the shaft connection member (5) and part of the handrail frame (3) to be placed in the mounting cavity (61). A first fixed body (61-c) and a second fixed body (61-d) are respectively provided on two inner side walls of the mounting cavity (61). There is an insertion spacing between the first fixed body (61-c) and the second fixed body (61-d) for the shaft connection member (5) to be placed therein. The shaft member (51) moves on the first fixed body (61-c) and the second fixed body (61-d) at the same time. The locking node (9) is provided on the second fixed body (61-d).

3. The swing-adjustable chair armrest according to claim 2, characterized in that: A guide surface (31) matching the swing trajectory of the armrest support plate (4) is arranged on the upper end surface of the armrest frame (3); a plurality of positioning grooves (31-a) distributed along the swing trajectory of the armrest support plate (4) and recessed downward are arranged on the guide surface (31); a prompting member (20) that can be retracted by being squeezed is arranged in the second fixed body (61-d); when the prompting member (20) switches between two adjacent positioning grooves (31-a), it is squeezed and retracted, and the swinging armrest support plate (4) has a swinging resistance.

4. The swing-adjustable chair armrest according to claim 3, characterized in that: A guide protrusion (31-b) is provided on the guide surface (31) between two adjacent positioning grooves (31-a), and the guide protrusion (31-b) and the positioning groove (31-a) form a corrugated configuration so that the prompt member (20) has continuity when switching positions between the guide protrusion (31-b) and the positioning groove (31-a), and the prompt member (20) is squeezed and retracted when abutting against the guide protrusion (31-b).

5. The swing-adjustable chair armrest according to claim 4, characterized in that: The prompt member (20) comprises a spring (201) and an abutment block (202) connected to the spring (201); the second fixed body (61-d) is provided with an extension body (61-d1) extending downward; the extension body (61-d1) is provided with an inner cavity (61-d11) having an assembly base surface (61-d111); a portion of the spring (201) is placed in the inner cavity (61-d11) and fixed on the assembly base surface (61-d111); the abutment block (202) switches positions between the guide protrusion (31-b) and the positioning groove (31-a), and enters the inner cavity (61-d11) when the spring (201) retracts.

6. The swing-adjustable chair armrest according to claim 1, characterized in that: The swing connection member (6) is provided with a buried groove (62) on an outer side surface corresponding to the pressing member (7) and the locking member (8); the pressing member (7) is placed in the corresponding buried groove (62) when in an unlocked state; the locking member (8) is placed in the corresponding buried groove (62) when in a locked state; and when placed in the buried groove (62), the retaining member (10) retains the locking member (8) in the buried groove (62).

7. The swing-adjustable chair armrest according to claim 6, characterized in that: The outer shape and configuration of the retaining member (10) is consistent with that of the swinging connecting member (6), and is provided with a slot (101) that matches the position of the buried groove (62) and allows the pressing member (7) to pass synchronously, so that when the pressing member (7) is placed in the corresponding buried groove (62), the slot (101) and the buried groove (62) are misaligned by movement.

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