Electric swing dining chair

Abstract

The utility model discloses an electric swing dining chair which comprises a supporting frame. The swing arm is rotationally connected to the supporting frame; the handrail is rotationally connected to the swing arm; the backrest is connected to the armrests; the cushion is connected to the backrest; the first locking structure is arranged between the supporting frame and the swing arm; the first locking structure is used for enabling the swing arm and the support frame to form relative fixation when being locked; when the first locking structure is unlocked, the swing arm can swing relative to the supporting frame. The second locking structure is arranged between the swing arm and the handrail; when the second locking structure is locked, the handrail and the swing arm are relatively fixed, so that the handrail moves along with the swing arm; when the second locking structure is unlocked, the handrail can rotate relative to the swing arm, so that the relative angle between the handrail and the swing arm is allowed to be adjusted. Therefore, the armrests can be ensured to be in the horizontal position in the dining chair state, and the angle between the armrests and the swing arms can be ensured to be in the optimal range in the swing state, so that a child can be prevented from being thrown out of the swing, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of children's dining chairs, in particular to an electric swing dining chair. Background Art

[0002] An electric swing is a children's product that provides entertainment and rest for children, and a dining chair is a children's product that provides children with independent dining. In order to reduce the cost of purchasing electric swings and dining chairs, reduce storage space, and solve the problem of single function, the electric swing dining chairs currently available on the market have achieved switching between swings and dining chairs. Users can convert the electric swing dining chair into an electric swing for children's entertainment, or a dining chair for children's dining according to actual needs; but there are the following problems during use: the armrests are usually fixedly connected to the swing arms, and the relative angle between the armrests and the swing arms is difficult to adjust. When switching to the dining chair state, the relative angle between the armrests and the swing arms needs to be set with reference to the horizontal position of the dining plate. In this way, when switching to the electric swing state, the relative angle between the armrests and the swing arms cannot be guaranteed to be within a reasonable range, and the safety of children is difficult to ensure. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides an electric swing dining chair, which aims to solve the problem that the relative angle between the armrest and the swing arm cannot be guaranteed to be within a reasonable range when switching to the electric swing state.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] An electric swing dining chair comprises: a support frame; a swing arm, rotatably connected to the support frame; an armrest, rotatably connected to the swing arm; a backrest, connected to the armrest; a cushion, connected to the backrest; a first locking structure, arranged between the support frame and the swing arm; the first locking structure is used to relatively fix the swing arm and the support frame when locked; the swing arm can swing relative to the support frame when the first locking structure is unlocked; a second locking structure is arranged between the swing arm and the armrest; the second locking structure is used to relatively fix the armrest and the swing arm when locked, so that the armrest follows the movement of the swing arm; when the second locking structure is unlocked, the armrest can rotate relative to the swing arm, thereby allowing the relative angle between the armrest and the swing arm to be adjusted.

[0006] According to some embodiments of the utility model, the second locking structure includes a first button, a first clamping member, a second clamping member and a movable member, the first clamping member is fixedly provided on the armrest, the second clamping member is fixedly provided on the swing arm, the first button is provided on the armrest, and the movable member is transmission connected with the first button, when the first button is pressed, the movable member moves from the first position to the second position; when the movable member is in the first position, the movable member is respectively clamped with the first clamping member and the second clamping member so that the armrest and the swing arm are relatively fixed; when the movable member is in the second position, the movable member is released from the clamping member with at least one of the first clamping member and the second clamping member so that the armrest can rotate relative to the swing arm.

[0007] According to some embodiments of the utility model, the first clamping member includes a first inner gear ring, the second clamping member includes a second inner gear ring, the movable member is a locking gear, and when the movable member is in the first position, the locking gear is respectively engaged and locked with the first inner gear ring and the second inner gear ring.

[0008] According to some embodiments of the utility model, the second locking structure also includes a rotating member and a translation member in a transmission connection, the first button and the rotating member are transmission connected, the translation member and the locking gear are transmission connected, when the first button is pressed, the first button drives the rotating member to rotate, and under the drive of the rotating member, the translation member translates and pushes the locking gear to move axially so that the locking gear is separated from at least one of the first inner gear ring and the second inner gear ring.

[0009] According to some embodiments of the present invention, the second locking structure further includes a second elastic member, and the second elastic member is configured to reset the locking gear from the second position to the first position.

[0010] According to some embodiments of the utility model, the swing arm includes a swing arm body and a height adjusting seat, the height adjusting seat is connected to the armrest, and the height adjusting seat is slidably arranged on the swing arm body along the length direction of the swing arm body, and a third locking structure is arranged between the swing arm body and the height adjusting seat; when the third locking structure is locked, it is used to make the height adjusting seat and the swing arm body relatively fixed; when the third locking structure is unlocked, the height adjusting seat can slide relative to the swing arm body; the second clamping piece is fixedly arranged on the height adjusting seat.

[0011] According to some embodiments of the utility model, the third locking structure includes a second button and a third clip, a locking slot is opened on one side of the swing arm body, the second button is arranged on the height adjustment seat, the third clip is hinged on the height adjustment seat, the second button and the third clip are transmission connected, and when the second button is pressed, the third clip rotates from a locked position to an unlocked position; when the third clip is in the locked position, the third clip is clamped in the locking slot so that the swing arm body and the height adjustment seat are relatively fixed; when the third clip is in the unlocking position, the third clip and the locking slot are separated so that the height adjustment seat can move relative to the swing arm body.

[0012] According to some embodiments of the present invention, the third locking structure further includes a third elastic member, and the third elastic member is configured to reset the third clamping member from the unlocking position to the locking position.

[0013] According to some embodiments of the utility model, the first locking structure includes a rotating seat and a locking seat, the rotating seat is rotatably connected to the swing arm, the locking seat is fixedly arranged on the support frame, a locking block is arranged on the rotating seat, and a socket and a limiting groove are provided on the swing arm. Driven by the rotating seat, the locking block can be rotated to a position aligned with the socket and inserted into the limiting groove. After the locking block is inserted into the limiting groove, it can be rotated to a position locked with the limiting groove.

[0014] According to some embodiments of the present invention, the first locking structure further includes a first elastic member, and the first elastic member is configured to drive the locking block inserted into the limiting groove to rotate to a position locked with the limiting groove.

[0015] In summary, the electric swing dining chair provided by the utility model has at least the following technical effects:

[0016] The armrest is rotatably connected to the swing arm, and when the second locking structure is unlocked, the angle of the armrest relative to the swing arm can be quickly adjusted. In this way, the armrest can be kept in a horizontal position in the dining chair state, and the angle between the armrest and the swing arm can be kept in an optimal range in the swing state, thereby preventing children from being thrown out of the swing and improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the electric dining chair in a swing state according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the exploded structure of the electric dining chair in the swing state according to the embodiment of the utility model;

[0019] Figure 3This is a schematic diagram of the exploded structure of the backrest, seat cushion and armrest of the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded structure of the handrail and the second locking structure of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the cooperation between the third locking structure and the swing arm body of the embodiment of the utility model;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the electric dining chair according to an embodiment of the utility model in a dining chair state.

[0023] The meanings of the reference numerals are as follows:

[0024] 1. Support frame; 11. Driving device; 12. Control panel; 2. Swing arm; 21. Swing arm body; 211. Locking slot; 22. Height adjustment seat; 3. Armrest; 31. Armrest cover; 32. Armrest seat; 33. Angle positioning hole; 34. Arc slide; 4. Backrest; 5. Cushion; 51. Connecting rod; 52. Guide slot; 53. Foot pad; 6. First locking structure; 61. Rotating seat; 62. Locking seat; 63. Locking block; 64. First elastic member; 7. Second locking structure; 71. First button; 72. The first clamping member; 721, the first seat body; 722, the first inner gear ring; 73, the second clamping member; 731, the second seat body; 732, the second inner gear ring; 74, the movable member; 75, the rotating member; 76, the translating member; 77, the second elastic member; 78, the sleeve; 781, the notch; 8, the third locking structure; 81, the second button; 82, the third clamping member; 83, the third elastic member; 9, the fourth locking structure; 91, the pull rod; 92, the guide seat; 93, the traction rope; 94, the locking pin; 10, the dining plate. DETAILED DESCRIPTION

[0025] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] See also Figure 1 and Figure 6 The utility model discloses an electric swing dining chair, comprising a support frame 1, a swing arm 2, a cushion 5, a backrest 4, an armrest 3, a first locking structure 6 and a second locking structure 7; the swing arm 2 is rotatably connected to the support frame 1; the armrest 3 is rotatably connected to the swing arm 2; the backrest 4 is connected to the armrest 3; the cushion 5 is connected to the backrest 4; the first locking structure 6 is arranged between the support frame 1 and the swing arm 2; when the first locking structure 6 is locked, it is used to make the swing arm 2 and the support frame 1 relatively fixed; when the first locking structure 6 is unlocked, the swing arm 2 can swing relative to the support frame 1; the second locking structure 7 is arranged between the swing arm 2 and the armrest 3; when the second locking structure 7 is locked, it is used to make the armrest 3 and the swing arm 2 relatively fixed; when the second locking structure 7 is unlocked, the armrest 3 can rotate relative to the swing arm 2, thereby allowing the relative angle of the armrest 3 and the swing arm 2 to be adjusted.

[0030] The present embodiment provides an electric swing dining chair, in which the support frame 1 and the swing arm 2 are relatively fixed when the first locking structure 6 is locked, so that the electric swing dining chair is switched to the dining chair state; when the first locking structure 6 is unlocked, the swing arm 2 can rotate relative to the support frame 1, so that the electric swing dining chair is switched to the swing state; the armrest 3 is rotatably connected to the swing arm 2, and when the second locking structure 7 is unlocked, the angle of the armrest 3 relative to the swing arm 2 can be quickly adjusted, so that the armrest 3 can be kept in a horizontal position in the dining chair state, and the angle between the armrest 3 and the swing arm 2 can be kept in an optimal range in the swing state, thereby preventing children from being thrown out of the swing and improving safety performance.

[0031] like Figure 3 As shown, specifically, in this embodiment, the electric swing dining chair also includes a driving device 11, a control panel 12 and a remote control. The driving device 11 is arranged on the support frame 1 and is used to drive the swing arm 2 to swing relative to the support frame 1. The control panel 12 is also arranged on the control panel 12 to control the operation of the driving device 11. The remote control is used to remotely control the operation of the driving device 11. In this way, the corresponding working parameters can be set through the control panel 12 and the remote control to realize the control of the swing amplitude, swing frequency, swing time, music, etc.

[0032] like Figure 2 and Figure 4As shown, further, in the present embodiment, the second locking structure 7 includes a first button 71, a first clamping member 72, a second clamping member 73 and a movable member 74. The first clamping member 72 is fixedly arranged in the armrest 3, the second clamping member 73 is fixedly arranged on the swing arm 2, the first button 71 is arranged on the armrest 3, and the movable member 74 is transmission-connected with the first button 71. When the first button 71 is pressed, the movable member 74 moves from the first position to the second position; when the movable member 74 is in the first position, the movable member 74 is clamped with the first clamping member 72 and the second clamping member 73 respectively so that the armrest 3 and the swing arm 2 are relatively fixed; when the movable member 74 is in the second position, the movable member 74 is released from the clamping member 72 so that the armrest 3 can rotate relative to the swing arm 2. In this way, the locking or unlocking of the second locking structure 7 is realized by the first button 71, the first clamping member 72, the second clamping member 73 and the movable member 74. The structure is relatively simple, the function is easy to realize, and the production cost is low.

[0033] It should be noted that, in some other embodiments, the second locking structure 7 may also be but not limited to a wheel locking structure, specifically, the wheel locking structure includes a wheel and a fixing part, the wheel is fixed on the armrest 3 and rotates with the armrest 3, and the spacer ring on the wheel is provided with multiple adjustment holes; when the wheel locking structure is locked, the fixing part is passed through the swing arm 2 and one of the adjustment holes to fix the relative positions of the wheel and the swing arm 2; when the wheel locking structure is unlocked, the fixing part is separated from the adjustment hole, and the armrest 3 can rotate relative to the swing arm 2 and drive the wheel to rotate to achieve angle adjustment relative to the swing arm 2; the specific structure of the second locking structure 7 can be selected according to actual needs, and no sole limitation is made here.

[0034] like Figure 2 and Figure 4 As shown, preferably, in this embodiment, the first clamping member 72 includes a first seat body 721 and a first inner ring gear 722, and the first inner ring gear 722 is arranged on the inner circumference of the first seat body 721. The second clamping member 73 includes a second seat body 731 and a second inner ring gear 732, and the second inner ring gear 732 is arranged on the inner circumference of the second seat body 731. The movable member 74 is a locking gear. When the movable member 74 is in the first position, the locking gear is respectively engaged and locked with the first inner ring gear 722 and the second inner ring gear 732. In this way, when the armrest 3 rotates relative to the swing arm 2, the first inner ring gear 722 will rotate synchronously. By utilizing the engagement and locking between the first inner ring gear 722, the second inner ring gear 732 and the locking gear, the first inner ring gear 722 can be engaged with the locking gear at different positions, thereby facilitating the purpose of locking the relative position of the armrest 3 and the swing arm 2 when the armrest 3 rotates to different positions.

[0035] Specifically, in this embodiment, the second locking structure 7 also includes a sleeve 78, a rotating member 75 and a translation member 76. The sleeve 78 is arranged in the armrest 3, and the locking gear is arranged on the sleeve 78. A slot 781 is opened on the sleeve 78. The first button 71 is transmission-connected with the rotating member 75, and the rotating member 75 and the translation member 76 are transmission-connected. The protrusion of the translation member 76 extends from the slot 781 of the sleeve 78 and cooperates with the end face of the locking gear. When the first button 71 is pressed, the first button 71 drives the rotating member 75 to rotate. Under the drive of the rotating member 75, the translation member 76 translates and pushes the locking gear to move axially so that the locking gear is released from the first inner gear ring 722. At this time, the armrest 3 can rotate relative to the swing arm 2 to achieve angle adjustment of the armrest 3.

[0036] Preferably, in this embodiment, the second locking structure 7 also includes a second elastic member 77. When the first button 71 is released, the first button 71 will be reset to the initial position under the action of a reset spring, and the second elastic member 77 is configured to reset the locking gear from the second position to the first position, thereby locking the relative position of the armrest 3 and the swing arm 2 after the angle adjustment of the armrest 3 is completed.

[0037] like Figure 2 and Figure 6 As shown, further, in the present embodiment, the swing arm 2 includes a swing arm body 21 and a height-adjusting seat 22, the height-adjusting seat 22 is connected to the armrest 3, and the height-adjusting seat 22 is slidably arranged on the swing arm body 21 along the length direction of the swing arm body 21, and a third locking structure 8 is arranged between the swing arm body 21 and the height-adjusting seat 22; when the third locking structure 8 is unlocked, the height-adjusting seat 22 can slide relative to the swing arm body 21, thereby driving the armrest 3 to move up and down to adjust the height of the armrest 3, and the backrest 4 and the seat cushion 5 both move with the armrest 3, thereby achieving the purpose of adjusting the height of both the backrest 4 and the seat cushion 5; when the third locking structure 8 is locked, it is used to make the height-adjusting seat 22 and the swing arm body 21 relatively fixed, thereby achieving the relative fixation of the height-adjusting seat 22 and the swing arm body 21 after the height adjustment is completed; the second clamping piece 73 is fixedly arranged on the height-adjusting seat 22, so that the overall structure of the electric swing dining chair is more compact.

[0038] like Figure 2 and Figure 5As shown, preferably, in this embodiment, the third locking structure 8 includes a second button 81 and a third clip 82, a locking groove 211 is opened on one side of the swing arm body 21, the second button 81 is arranged on the height adjusting seat 22, and the third clip 82 is hinged on the height adjusting seat 22, the second button 81 and the third clip 82 are transmission connected, and when the second button 81 is pressed, the third clip 82 rotates from the locked position to the unlocked position; when the third clip 82 is in the unlocked position, the third clip 82 and the locking groove 211 are separated so that the height adjusting seat 22 can move relative to the swing arm body 21, thereby achieving the purpose of adjusting the height of both the backrest 4 and the seat cushion 5; when the third clip 82 is in the locked position, the third clip 82 is clamped in the locking groove 211 so that the swing arm body 21 and the height adjusting seat 22 are relatively fixed, thereby locking the relative position of the height adjusting seat 22 and the swing arm body 21 after completing the height adjustment of both the backrest 4 and the seat cushion 5.

[0039] Preferably, in this embodiment, the third locking structure 8 also includes a third elastic member 83. After the second button 81 is released, the second button 81 will be reset to the initial position under the action of a reset spring. The third elastic member 83 is configured to reset the third clamping member 82 from the unlocked position to the locked position to achieve the purpose of relatively fixing the height adjustment seat 22 and the swing arm body 21.

[0040] It should be noted that the third locking structure 8 can also be other mechanical structures that can lock or unlock the relative position between the height-adjusting seat 22 and the swing arm body 21. It can be selected according to actual needs and is not limited here.

[0041] like Figure 2 As shown, specifically, in this embodiment, the first locking structure 6 includes a rotating seat 61 and a locking seat 62, the rotating seat 61 is rotatably connected to the swing arm body 21, the locking seat 62 is fixedly arranged on the support frame 1, and a locking block 63 is arranged on the rotating seat 61, and the locking block 63 moves synchronously with the rotating seat 61, and the swing arm 2 is provided with a socket and a limiting groove. Driven by the rotating seat 61, the locking block 63 can be rotated to a position aligned with the socket and inserted into the limiting groove. After the locking block 63 is inserted into the limiting groove, it can be rotated to a position locked with the limiting groove, thereby achieving the purpose of relatively fixing the swing arm body 21 and the support frame 1, so as to switch the electric swing dining chair from the swing state to the dining chair state. Specifically, in this embodiment, the rotating seat 61 can also be rotated to release the lock of the locking block 63 and the limiting groove, thereby switching the electric swing dining chair from the dining chair state to the swing state.

[0042] Preferably, in this embodiment, the first locking structure 6 further includes a first elastic member 64, and the first elastic member 64 is configured to drive the locking block 63 inserted into the limiting groove to rotate to a position locked with the limiting groove. Specifically, in this embodiment, the first elastic member 64 is a torsion spring.

[0043] It should be noted that the first locking structure 6 may also be other mechanical structures that can lock or unlock the relative position between the swing arm body 21 and the support frame 1. It can be selected according to actual needs and is not limited here.

[0044] Preferably, in this embodiment, the backrest 4 is hinged to the armrest 3, the relative angle between the backrest 4 and the armrest 3 is adjustable, and a fourth locking structure 9 is provided between the backrest 4 and the armrest 3. When the fourth locking structure 9 is locked, it can be used to make the backrest 4 and the armrest 3 relatively fixed, and when the fourth locking structure 9 is unlocked, the backrest 4 can rotate relative to the armrest 3.

[0045] like Figure 2 and Figure 3 As shown, preferably, in this embodiment, the fourth locking structure 9 device includes a pull rod 91, a guide seat 92, a traction rope 93, a locking pin 94, and a guide column. The pull rod 91 and the guide seat 92 are arranged on the backrest 4, the locking pin 94 is connected to the pull rod 91 through the traction rope 93, and the locking pin 94 is elastically resettable and arranged on the guide seat 92, the guide column is arranged on the guide seat 92, and an angle positioning hole 33 and an arc-shaped slide groove 34 are arranged on the armrest 3, the angle positioning hole 33 cooperates with the locking pin 94, the arc-shaped slide groove 34 cooperates with the guide column, and the locking pin 94 is locked on the angle positioning hole 33; when the pull rod 91 is pulled, the pull rod 91 pulls the locking pin 94 to retract through the traction rope 93 to separate the locking pin 94 from the angle positioning hole 33, thereby releasing the relative fixation of the backrest 4 and the armrest 3, and the pull rod 91 is released after the backrest 4 is rotated at a suitable angle relative to the armrest 3, and the locking pin 94 is locked in the corresponding angle positioning hole 33 under the action of the elastic reset example to achieve locking of the backrest 4.

[0046] like Figure 1 As shown, specifically, in this embodiment, two armrests 3 are provided, and the two armrests 3 are respectively located on both sides of the backrest 4. A guide groove 52 is provided at the lower part of the seat cushion 5. The two armrests 3 are connected by a connecting rod 51, and the connecting rod 51 is inserted into the guide groove 52. More specifically, in this embodiment, the armrest 3 includes an armrest cover 31 and an armrest seat 32, and the above-mentioned components provided on the armrest 3 can be provided on the armrest cover 31 and the armrest seat 32 as required.

[0047] Specifically, in the present embodiment, the electric swing dining chair further comprises a dining tray 10 , and the dining tray 10 is detachably connected to the armrest 3 .

[0048] In summary, the electric swing dining chair disclosed in the utility model can at least bring the following beneficial technical effects:

[0049] 1) The angle of the armrest 3 relative to the swing arm 2 can be quickly adjusted. When in the dining chair state, the armrest 3 can be kept in a horizontal position. When in the swing state, the angle between the armrest 3 and the swing arm 2 can be kept in an optimal range, thereby preventing children from being thrown out of the swing and improving safety performance;

[0050] 2) The first button 71, the first clamping member 72, the second clamping member 73 and the movable member 74 are used to lock or unlock the second locking structure 7, which has a relatively simple structure, is easy to implement and has a low production cost;

[0051] 3) The first inner gear ring 722 can be engaged with the locking gear at different positions, so as to facilitate the purpose of locking the relative position of the armrest 3 and the swing arm 2 when the armrest 3 is rotated to different positions;

[0052] 4) The corresponding working parameters of the electric swing dining chair can be set through the control panel 12 and the remote control to achieve control of the swing amplitude, swing frequency, swing time, music, etc.

[0053] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electric swing dining chair, characterized in that: include: Support frame (1); A swing arm (2) rotatably connected to the support frame (1); An armrest (3) rotatably connected to the swing arm (2); A backrest (4) connected to the armrest (3); A seat cushion (5) connected to the backrest (4); a first locking structure (6) disposed between the support frame (1) and the swing arm (2); when the first locking structure (6) is locked, the swing arm (2) and the support frame (1) are relatively fixed; when the first locking structure (6) is unlocked, the swing arm (2) can swing relative to the support frame (1); A second locking structure (7) is arranged between the swing arm (2) and the armrest (3); when the second locking structure (7) is locked, the armrest (3) and the swing arm (2) are relatively fixed, so that the armrest (3) moves with the swing arm (2); when the second locking structure (7) is unlocked, the armrest (3) can rotate relative to the swing arm (2), thereby allowing the relative angle between the armrest (3) and the swing arm (2) to be adjusted.

2. The electric swing dining chair according to claim 1, characterized in that: The second locking structure (7) comprises a first button (71), a first clamping member (72), a second clamping member (73) and a movable member (74); the first clamping member (72) is fixedly arranged on the armrest (3); the second clamping member (73) is fixedly arranged on the swing arm (2); the first button (71) is arranged on the armrest (3); the movable member (74) is transmission-connected with the first button (71); when the first button (71) is pressed, the movable member (74) moves from the first position to the second position; When the movable member (74) is in the first position, the movable member (74) is respectively engaged with the first engaging member (72) and the second engaging member (73) so that the armrest (3) and the swing arm (2) are relatively fixed; When the movable member (74) is in the second position, the movable member (74) is released from at least one of the first clamping member (72) and the second clamping member (73) so that the armrest (3) can rotate relative to the swing arm (2).

3. The electric swing dining chair according to claim 2, characterized in that: The first clamping member (72) includes a first inner gear ring (722), the second clamping member (73) includes a second inner gear ring (732), and the movable member (74) is a locking gear. When the movable member (74) is in the first position, the locking gear is respectively meshed and locked with the first inner gear ring (722) and the second inner gear ring (732).

4. The electric swing dining chair according to claim 3, characterized in that: The second locking structure (7) further comprises a rotating member (75) and a translation member (76) which are transmission-connected, the first button (71) and the rotating member (75) are transmission-connected, the translation member (76) and the locking gear are transmission-connected, when the first button (71) is pressed, the first button (71) drives the rotating member (75) to rotate, and under the drive of the rotating member (75), the translation member (76) translates and pushes the locking gear to move axially so that the locking gear is separated from at least one of the first inner gear ring (722) and the second inner gear ring (732).

5. The electric swing dining chair according to claim 4, characterized in that: The second locking structure (7) further comprises a second elastic member (77), wherein the second elastic member (77) is configured to reset the locking gear from the second position to the first position.

6. The electric swing dining chair according to claim 2, characterized in that: The swing arm (2) comprises a swing arm body (21) and a height-adjusting seat (22); the height-adjusting seat (22) is connected to the armrest (3), and the height-adjusting seat (22) is slidably arranged on the swing arm body (21) along the length direction of the swing arm body (21); a third locking structure (8) is arranged between the swing arm body (21) and the height-adjusting seat (22); when the third locking structure (8) is locked, the height-adjusting seat (22) and the swing arm body (21) are relatively fixed; when the third locking structure (8) is unlocked, the height-adjusting seat (22) can slide relative to the swing arm body (21); The second clamping member (73) is fixedly arranged on the height-adjusting seat (22).

7. The electric swing dining chair according to claim 6, characterized in that: The third locking structure (8) comprises a second button (81) and a third clamping member (82); a locking groove (211) is provided on one side of the swing arm body (21); the second button (81) is arranged on the height adjustment seat (22); the third clamping member (82) is hinged on the height adjustment seat (22); the second button (81) and the third clamping member (82) are transmission-connected; when the second button (81) is pressed, the third clamping member (82) rotates from a locking position to an unlocking position; when the third clamping member (82) is in the locking position, the third clamping member (82) is clamped in the locking groove (211) so that the swing arm body (21) and the height adjustment seat (22) are relatively fixed; when the third clamping member (82) is in the unlocking position, the third clamping member (82) and the locking groove (211) are separated so that the height adjustment seat (22) can move relative to the swing arm body (21).

8. The electric swing dining chair according to claim 7, characterized in that: The third locking structure (8) further comprises a third elastic member (83), wherein the third elastic member (83) is configured to reset the third clamping member (82) from the unlocking position to the locking position.

9. The electric swing dining chair according to claim 1, characterized in that: The first locking structure (6) comprises a rotating seat (61) and a locking seat (62); the rotating seat (61) is rotatably connected to the swing arm (2); the locking seat (62) is fixedly arranged on the support frame (1); a locking block (63) is arranged on the rotating seat (61); a socket and a limiting groove are arranged on the swing arm (2); driven by the rotating seat (61), the locking block (63) can be rotated to a position aligned with the socket and inserted into the limiting groove; after the locking block (63) is inserted into the limiting groove, it can be rotated to a position locked with the limiting groove.

10. The electric swing dining chair according to claim 9, characterized in that: The first locking structure (6) further comprises a first elastic member (64), wherein the first elastic member (64) is configured to drive the locking block (63) inserted into the limiting groove to rotate to a position where it is locked with the limiting groove.

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