A seat arm table board

Abstract

The application discloses a seat armrest small table plate, which comprises a shell, a guide sliding seat, a driving rope, a locking pin, a first locking device, a first unlocking device, a second locking device and a second unlocking device, the shell is internally provided with a cavity, the cavity is a sliding cavity extending along the length direction, the guide sliding seat slides along the length direction of the sliding cavity, the upper part of the guide sliding seat is provided with a vertical shaft, the vertical shaft is arranged along the height direction and can rotate horizontally along the shaft center, the top end of the vertical shaft is provided with a first swing shaft, the first swing shaft is provided with a supporting shaft, the end of the supporting shaft is provided with a vertical extending horizontal shaft, the horizontal shaft is provided with a first plate body rotating horizontally, the first plate body is swingingly provided with a second plate body along the length direction through a first hinge; the second unlocking device is arranged on the vertical shaft and is used for unlocking the second locking device and pushing the guide sliding seat to slide downward until the first locking device is locked with the locking pin.

Description

Technical Field

[0001] The present invention relates to the field of automobile accessories, in particular to a seat armrest table. Background Art

[0002] With the development of automobiles, the demand for automobile convenience has also increased, so automobile support shafts have also emerged. The setting of automobile support shafts can facilitate daily use, such as office work, entertainment or eating.

[0003] Therefore, how to design the automobile support shaft to be convenient to use and easy to store when not in use is the key to the design.

[0004] For example, Chinese patent 202221575001.5, its support shaft is mainly engaged by the gear of the lifting assembly and the rack on the groove wall of the storage groove, thereby realizing the vertical sliding of the support shaft. However, in actual use, it has noise, and adopts a structure of ejection by elastic parts, and the locking structure is arranged at the upper end of the shell. Although there is cooperation between the gear and the rack during the ejection of the initial section, a large pressure will be generated in the initial section, which may easily cause impact on children or hands. In addition, a large pressing force is required to unlock the locking structure, which affects the user experience. Summary of the Invention

[0005] The main purpose of the present invention is to propose a small table for the seat armrest, which aims to improve the existing small support shaft structure of the car, thereby enabling folding and storage. At the same time, when unfolded for use, its sliding is more linear, and the structure is simple, making it easy to open and store.

[0006] To achieve the above-mentioned object, the present invention provides a seat armrest table, comprising:

[0007] A housing, wherein the housing has a cavity therein, and the cavity is a sliding cavity extending along its length;

[0008] A guide slide seat, wherein the guide slide seat slides along the length direction of the sliding cavity, a vertical shaft is provided on the upper portion of the guide slide seat, the vertical shaft is provided along the height direction and can rotate horizontally along the axis, a first swing shaft is provided at the top end of the vertical shaft, the first swing shaft is provided with a support shaft, a vertically extending horizontal shaft is provided at the end of the support shaft, the horizontal shaft is provided with a first plate body that rotates horizontally, and the first plate body is swingably mounted with a second plate body along its length direction through a first hinge;

[0009] a driving rope, one end of which is disposed on a winding device in the guide slide seat, and the other end of which is disposed on an upper portion of the sliding cavity;

[0010] When the guide slide extends into the sliding cavity, the drive rope is in an unfolded state, and when the guide slide moves to the upper end position of the sliding cavity, the drive rope is wound into the winding device;

[0011] Locking pins: two locking pins are provided at intervals on the lower part of the guide slide seat;

[0012] a first locking device, the first locking device being provided at the bottom of the sliding cavity and being used to lock the other locking pin;

[0013] a first unlocking device, the first unlocking device being used to unlock the first locking device, so that the winding device works and drives the guide slide to move upward;

[0014] The second locking device is arranged at the top of the sliding cavity. When the winding device stops, the locking pin is in contact with the second locking device.

[0015] Pulling the guide slide upwards can drive the locking pin to lock with the second locking device;

[0016] The second unlocking device is arranged on the vertical shaft and is used to unlock the second locking device and push the guide slide seat to slide downward until the first locking device is locked with the locking pin.

[0017] In the actual design, unlike the existing ejection structure, the guide slide is driven by the winding device to move, which can make its movement smoother, avoid the ejection problem caused by the torsion spring and other structures during operation, and make the movement more linear;

[0018] In addition, in the actual design, the first locking device is arranged at the bottom of the sliding cavity, and the first unlocking device is arranged at the top of the shell and the first locking device is driven to unlock by a linkage rope, thereby making unlocking more convenient and playing a lever role, making unlocking more labor-saving, simple and convenient;

[0019] Furthermore, the first locking device and the second locking device cooperate with the same locking pin, thereby achieving locking when stored and when in use, making the locking structure simpler;

[0020] In addition, by arranging an ejection shaft between the vertical shaft and the support shaft, the ejection shaft drives the second unlocking device, thereby unlocking the second locking device, that is, the second locking device is unlocked while the support shaft is stored, which effectively improves the convenience of use.

[0021] In terms of form, there is no need for a second unlocking device, so that the built-in second unlocking device is realized during the folding process, thereby realizing storage linkage and improving convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Indicates when the table is fully extended Figure 1 ;

[0023] Figure 2 Indicates when the table is fully extended Figure 2 ;

[0024] Figure 3 This indicates when the table is fully unfolded. Figure 3 ;

[0025] Figure 4 is a schematic diagram of the guide slide being located at the second locking device position;

[0026] Figure 5 is a schematic diagram of the guide slide being located at the first locking device position;

[0027] Figure 6 Schematic diagram of the sliding cavity Figure 1 ;

[0028] Figure 7 Schematic diagram of the sliding cavity Figure 2 ;

[0029] Figure 8 is a schematic diagram of a first locking device;

[0030] Figure 9 is a schematic diagram of a second locking device;

[0031] Figure 10 is a half-section schematic diagram of the second locking device;

[0032] Figure 11 It is a three-dimensional schematic diagram of the guide slide;

[0033] Figure 12 It is a half-section schematic diagram of the guide slide;

[0034] Figure 13 It is a three-dimensional schematic diagram of the support shaft;

[0035] Figure 14 It is a cross-sectional view of the guide slide;

[0036] Figure 15 Schematic diagram of the push rod and crank seat.

[0037] 1 is the housing, 10 is the sliding cavity,

[0038] 2 is the guide slide, 21 is the vertical axis, 22 is the support axis, 23 is the first swing axis,

[0039] 31 is the first plate, 32 is the second plate, 33 is the horizontal axis, 34 is the first hinge,

[0040] 4 is the first locking device, 40 is the first positioning plate, 41 is the first arc groove, 42 is the first side groove, 43 is the first clamping groove, 44 is the first hook, 45 is the first swing seat, 46 is the first locking seat, 47 is the first guide wall, 48 is the tail,

[0041] 5 is the second locking device, 50 is the second positioning plate, 51 is the second arc groove, 52 is the second side groove, 53 is the second clamping groove, 54 is the second hook, 55 is the second swing seat, 56 is the second locking seat, 57 is the second guide wall, 58 is the inclined surface,

[0042] 6 is the first unlocking device, 61 is the button, 62 is the rocker, 63 is the linkage rope,

[0043] 7 is the second unlocking device, 70 is the guide slide hole, 71 is the top column, 72 is the crank seat, 73 is the top spring, 74 is the first pivot groove, 75 is the convex surface,

[0044] 8 is a locking pin, 81 is a first torsion spring, 82 is a second torsion spring, 83 is a third torsion spring, 84 is a fourth torsion spring,

[0045] 9 is a winding device, 90 is a driving rope, 91 is a guide rail, and 92 is a slider. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0048] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] like Figures 1 to 15 As shown, a seat armrest table includes:

[0050] A housing 1 is provided with a cavity therein, wherein the cavity is a sliding cavity 10 extending along its length;

[0051] The guide slide 2 slides along the length direction of the sliding cavity 10. A vertical shaft 21 is provided on the upper portion of the guide slide 2. The vertical shaft 21 is arranged in the height direction and can rotate horizontally along the axis. A first swing shaft 23 is provided at the top of the vertical shaft 21. The first swing shaft 23 is provided with a support shaft 22. The end of the support shaft 22 is provided with a vertically extending horizontal shaft 33. The horizontal shaft 33 is provided with a horizontally rotating first plate 31. The first plate is swingably mounted with a second plate 32 along its length direction via a first hinge 34.

[0052] A drive rope 90, one end of which is disposed on the winding device 9 in the guide slide 2, and the other end of which is disposed on the upper portion of the sliding cavity 10;

[0053] When the guide slide 2 extends into the sliding cavity 10, the driving rope 90 is in an unfolded state. When the guide slide 2 moves to the upper end position of the sliding cavity 10, the driving rope 90 is wound into the winding device 9.

[0054] Locking pin 8: two locking pins 8 are provided at intervals on the lower part of the guide slide seat 2;

[0055] A first locking device 4 is provided at the bottom of the sliding cavity 10 and is used to lock the other locking pin 8;

[0056] A first unlocking device 6, which is used to unlock the first locking device 4, and the winding device 9 works and drives the guide slide 2 to move upward;

[0057] The second locking device 5 is provided at the top of the sliding cavity 10. When the winding device 9 stops, the locking pin 8 is in contact with the second locking device 5.

[0058] Pulling the guide slide 2 upwards can drive the locking pin 8 to lock with the second locking device 5;

[0059] The second unlocking device 7 is provided on the vertical shaft and is used to unlock the second locking device 5 and push the guide slide 2 to slide downward until the first locking device 4 is locked with the locking pin 8.

[0060] In the actual design, unlike the existing pop-up structure, the guide slide 2 is driven by the winding device 9 to move, which can make its movement smoother, avoid the ejection problem caused by the torsion spring and other structures during operation, and make the movement more linear;

[0061] In addition, in the actual design, the first locking device 4 is arranged at the bottom of the sliding cavity 10, and the first unlocking device 6 is arranged at the top of the housing 1 and the first locking device 4 is driven to unlock by the linkage rope 63, thereby making unlocking more convenient and playing the role of a lever, making unlocking more labor-saving, simple and convenient;

[0062] Furthermore, the first locking device 4 and the second locking device 5 cooperate with the same locking pin 8, thereby achieving locking when stored and when in use, making the locking structure simpler;

[0063] In addition, by arranging an ejection shaft between the vertical shaft 21 and the support shaft 22, the ejection shaft drives the second unlocking device, thereby unlocking the second locking device 5, that is, the second locking device 5 is unlocked while the support shaft 22 is stored, which effectively improves the convenience of use.

[0064] In terms of form, there is no need for a second unlocking device, so that the built-in second unlocking device is realized during the folding process, thereby realizing storage linkage and improving convenience of use.

[0065] Specifically, the first locking device 4 includes two first positioning plates spaced apart, a first swing seat 45 and a first locking seat 46 swingably mounted between the first positioning plates.

[0066] The first positioning plate is provided with a first arc-shaped groove 41;

[0067] The first swing seat 45 is provided with a first side groove 42, and the first side groove 42 can swing between a position in the same direction as the opening direction of the first arc-shaped groove 41 or a position tangent to the opening direction of the first arc-shaped groove 41;

[0068] When locking is required, the locking pin 8 is inserted into the first side groove 42 and causes the first side groove 42 to swing toward a position tangent to the first arc-shaped groove 41;

[0069] The first locking seat 46 is used to lock the first side groove 42 of the first swing seat 45 at a position where the first side groove 42 is tangent to the opening direction of the first arc groove 41 .

[0070] When the first swing seat 45 is in the unlocked state, the first side groove 42 swings upward and then swings to the same position as the opening of the first arc-shaped groove 41;

[0071] When a person applies pressure downward, the locking pin 8 first fits into the first side groove 42 until the locking pin 8 abuts against the bottom wall of the first arc-shaped groove 41, thereby achieving locking.

[0072] At this time, the first locking seat 46 locks the first swing seat 45, thereby achieving double limiting.

[0073] Specifically, the first swing seat 45 extends with two oppositely disposed first side arms, and the two first side arms surround the first side groove 42.

[0074] The first side arm located at the bottom is provided with a first slot 43 recessed inwardly, and the first locking seat 46 is provided with a first hook 44 that matches the first slot 43;

[0075] A first guide wall 47 is provided on the lower end wall of the first side arm located at the first locking slot 43 . The first guide wall 47 gradually extends inward in an arc shape from the position of the first locking slot 43 .

[0076] Specifically, a first torsion spring 81 is provided at the rotation axis position of the first swing seat 45 , and the first torsion spring 81 is used to apply an elastic force to the first swing seat 45 to swing toward a position in the same direction as the opening of the first arc-shaped slot 41 ;

[0077] A second torsion spring 82 is provided at the rotation axis position of the first locking seat 46 , and the second torsion spring 82 is used to force the first swing seat 45 to swing toward a position close to the first arc-shaped groove.

[0078] In the actual design, both the first swing seat 45 and the first locking seat 46 are provided with limit pins, thereby limiting their predetermined swing angles;

[0079] Therefore, the first torsion spring 81 can realize that the first swing seat 45 swings to a tangential position when the locking pin 8 is pressed downward.

[0080] When the first locking seat 46 and the first locking groove 43 and the first hook 44 of the first swinging seat 45 are engaged with each other, the first torsion spring 81 can achieve a locking force;

[0081] Therefore, when actually unlocking, it is only necessary to overcome the elastic force of the second torsion spring 82 to release the elastic force of the first swing seat 45, thereby unlocking the locking pin 8.

[0082] At this time, the guide slide is driven by the winding device 9 to move upward and extend.

[0083] Specifically, the first unlocking device 6 includes a button 61 vertically slidably mounted on the top of the housing 1, a rocker 62 connected to one end of the button 61, and a linkage rope 63 connected to the other end of the rocker 62. The first locking seat 46 is provided with a tail on the rear wall away from the first hook 44.

[0084] The tail is connected to the other end of the linkage rope 63.

[0085] When the button 61 applies pressure, the linkage rope 63 is pulled upward, and the first locking seat 46 is driven to swing backward to overcome the elastic force of the second torsion spring, thereby unlocking the first swing seat 45 and the first locking seat 46.

[0086] Specifically, the winding device 9 is a coil spring and a rotating wheel provided outside the coil spring, and the outer wall of the rotating wheel is used to wind up the driving rope 90;

[0087] The sliding cavity 10 includes a column cavity and a plate cavity, wherein the vertical shaft 21 and the support shaft 22 extend into the column cavity, and the first plate body 31 and the second plate body 32 are folded and extend into the plate cavity;

[0088] The column cavity and the plate cavity are in a "T" shape, and the guide slide seat is in a "T" shape;

[0089] Guide rails are provided on both sides of the sliding cavity 10 along the length direction, and the guide slide seat is provided with sliders that cooperate with the guide rails. The sliding cavity 10 is also provided with multiple rollers at the bottom and top, wherein the rollers can also play a role of buffering and guiding sliding.

[0090] Specifically, the second locking device 5 is provided with two groups and is spaced apart. The second locking device 5 includes two spaced apart second positioning plates, a second swing seat 55 and a second locking seat 56 swingably mounted between the second positioning plates.

[0091] The second positioning plate is provided with a second arc-shaped groove 51, and the opening of the second arc-shaped groove 51 is arranged downward;

[0092] The second swing seat 55 is provided with a second side groove 52, and the second side groove 52 can swing between a position in the same direction as the opening direction of the second arc-shaped groove 51 or a position tangent to the opening direction of the second arc-shaped groove 51;

[0093] When locking is required, the locking pin 8 is engaged in the second side groove 52 and causes the second side groove 52 to swing toward a position tangent to the second arc-shaped groove 51;

[0094] The second locking seat 56 is used to lock the second side groove 52 of the second swing seat 55 at a position where the second side groove 52 is tangent to the opening direction of the second arc groove 51 .

[0095] When the second swing seat 55 is in the unlocked state, the second side groove 52 swings upward and then swings to the same position as the opening of the second arc-shaped groove 51;

[0096] When a person applies pressure downward, the locking pin 8 first fits into the second side groove 52 until the locking pin 8 abuts against the bottom wall of the second arc-shaped groove 51, thereby achieving locking.

[0097] At this time, the second locking seat 56 locks the second swing seat 55, thereby achieving double limiting.

[0098] Specifically, the second swing seat 55 extends with two second side arms that are opposite to each other, and the two second side arms surround the second side groove 52.

[0099] The second side arm located at the top is provided with a second inwardly recessed slot 53, and the second locking seat 56 is provided with a second hook 54 that cooperates with the second slot 53;

[0100] A second guide wall 57 is provided on the upper end wall of the second side arm located at the second locking slot 53 . The second guide wall 57 gradually extends inward in an arc shape from the position of the second locking slot 53 .

[0101] Specifically, a third torsion spring 83 is provided at the rotation axis position of the second swing seat 55, and the third torsion spring 83 is used to apply an elastic force to the second swing seat 55 to swing toward a position in the same direction as the opening of the second arc-shaped slot 51;

[0102] A fourth torsion spring 84 is provided at the rotation axis position of the second locking seat 56 , and the fourth torsion spring 84 is used to force the first swing seat 45 to swing toward a position close to the first arc-shaped groove.

[0103] In the actual design, both the second swing seat 55 and the second locking seat 56 are provided with a limit pin, thereby limiting their predetermined swing angles;

[0104] Therefore, the third torsion spring 83 can realize that the first swing seat 45 swings to a tangential position when the locking pin 8 is pressed upward.

[0105] When the second locking seat 56 and the second engaging groove 53 and the second hook 54 of the second swinging seat 55 are engaged with each other, the fourth torsion spring 84 can achieve a locking force;

[0106] Therefore, when actually unlocking, it is only necessary to overcome the elastic force of the third torsion spring 83 to release the elastic force of the first swing seat 45, thereby unlocking the locking pin 8.

[0107] At this time, the guide slide is driven by the winding device 9 to move upward and extend.

[0108] Specifically, the two second locking seats 56 extend toward the opposite wall to form a second unlocking block, and the upper wall of the second unlocking block is a slope 58;

[0109] The second unlocking device includes a guide slide hole 70 provided on the vertical shaft 21 and a top column 71 provided in the guide slide hole 70.

[0110] The lower end of the top column 71 is provided with a swinging crank seat 72, and the crank seat 72 extends forward to the position of the inclined surface 58;

[0111] The top column 71 can slide between an upward sliding position or a position driving the crank base 72 to move toward the inclined surface 58.

[0112] When the top column 71 slides upward, the crank seat 72 and the inclined surface 58 do not contact each other. When the support shaft 22 needs to be folded, the shaft of the seat plate is abutted against the upper end of the top column 71, thereby driving the top column 71 downward, thereby unlocking the second locking device 5.

[0113] Specifically, the guide slide seat is provided with a first pivot groove, the vertical shaft 21 is pivotally mounted in the first pivot groove 74, and a top spring 73 is provided between the guide slide hole 70 and the top column 71, and the top spring 73 is used to apply an upward elastic force to the top column 71 of the vertical shaft 21;

[0114] The vertical axis can be rotated according to actual needs.

[0115] When the vertical shaft 21 swings, the crank seat 72 swings accordingly to limit the swing amplitude of the vertical shaft 21, that is, the crank seat 72 not only unlocks the second locking device 5, but also unlocks the second locking device 5.

[0116] The guide hole 70 and the top column 71 are both non-circular in shape. When the support shaft 22 corresponds to the sliding cavity 10, the crank seat 72 is just located between the two inclined surfaces 58, and the setting of the inclined surfaces 58 also plays a role of avoidance.

[0117] Specifically, the top of the vertical shaft 21 is provided with two pivoting parts spaced apart from each other, the support shaft 22 is pivotally mounted between the two pivoting parts, and the rear end of the support shaft 22 is provided with a convex surface 75.

[0118] When the vertical shaft 21 and the support shaft 22 are in the same vertical direction, that is, when they need to be stored and folded, the support shaft 22 is arranged vertically, and the convex surface 75 abuts against the upper end of the top column 71, forcing the crank seat 72 downward.

[0119] During the actual folding process, the sliding cavity 10 includes a column cavity and a plate cavity, wherein the vertical shaft 21 and the support shaft 22 extend into the column cavity, and the first plate body 31 and the second plate body 32 are folded and extend into the plate cavity, thereby achieving the purpose of accommodating more devices in the smallest volume.

[0120] Compared with the existing structure, the same locking pin 8 structure is adopted, and the first locking device 4 and the first unlocking device 6 are respectively located at the bottom and the top, which can make locking more stable and unlocking more convenient;

[0121] When the guide slide needs to be locked in the second locking device 5, the locking pin 8 abuts against the wall of the second swing seat 55 and is not locked, so locking is achieved during the second manual pulling process;

[0122] When the second locking seat 56 needs to be unlocked, the crank seat 72 is moved downward by the vertical setting of the support shaft 22, and the second locking seat 56 is swung. The second swing seat 55 is unlocked under the elastic force of the third torsion spring 83, and then the guide sliding seat can be moved downward by continuing to push. The structure is simple and the linkage is more convenient.

[0123] The vertical shaft 21, the support shaft 22, the first plate 31 and the second plate 32 are provided with damping at the rotation position to provide a predetermined limit. Of course, a predetermined stop portion will also be provided in the specific rotation limit to achieve positioning and limit.

[0124] The linkage rope achieves stable sliding through the hollow tube.

[0125] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A seat armrest table, characterized in that: include: A housing, wherein the housing has a cavity therein, and the cavity is a sliding cavity extending along its length; A guide slide seat, wherein the guide slide seat slides along the length direction of the sliding cavity, a vertical shaft is provided on the upper portion of the guide slide seat, the vertical shaft is provided along the height direction and can rotate horizontally along the axis, a first swing shaft is provided at the top end of the vertical shaft, the first swing shaft is provided with a support shaft, a vertically extending horizontal shaft is provided at the end of the support shaft, the horizontal shaft is provided with a first plate body that rotates horizontally, and the first plate body is swingably mounted with a second plate body along its length direction through a first hinge; a driving rope, one end of which is disposed on a winding device in the guide slide seat, and the other end of which is disposed on an upper portion of the sliding cavity; When the guide slide extends into the sliding cavity, the drive rope is in an unfolded state, and when the guide slide moves to the upper end position of the sliding cavity, the drive rope is wound into the winding device; Locking pins: two locking pins are provided at intervals on the lower part of the guide slide seat; a first locking device, the first locking device being provided at the bottom of the sliding cavity and being used to lock the locking pin; a first unlocking device, the first unlocking device being used to unlock the first locking device, so that the winding device operates after the first locking device is unlocked and drives the guide slide to move upward; The second locking device is arranged at the top of the sliding cavity. When the winding device stops, the locking pin is in contact with the second locking device. Pulling the guide slide upwards can drive the locking pin to lock with the second locking device; The second unlocking device is arranged on the vertical shaft and is used to unlock the second locking device. It can drive the second locking device to unlock while storing the support shaft. After the second locking device is unlocked, it can push the guide slide seat to slide downward until the first locking device is locked with the locking pin.

2. The seat armrest table according to claim 1, characterized in that: The first locking device includes two first positioning plates spaced apart, a first swing seat and a first locking seat swingably mounted between the first positioning plates. The first positioning plate is provided with a first arc-shaped groove; The first swing seat is provided with a first side groove, and the first side groove can swing between a position in the same direction as the opening direction of the first arc-shaped groove or a position tangent to the opening direction of the first arc-shaped groove; When locking is required, the locking pin is engaged with the first side groove and causes the first side groove to swing toward a position tangent to the first arc-shaped groove; The first locking seat is used to lock the first side groove of the first swing seat at a position tangent to the opening direction of the first arc groove.

3. The seat armrest table according to claim 2, characterized in that: The first swing seat is extended with two first side arms arranged opposite to each other, and the two first side arms form the first side groove. The first side arm located at the bottom is provided with a first slot recessed inwardly, and the first locking seat is provided with a first hook matched with the first slot; The first side arm is provided with a first guide wall on the lower end wall of the first slot, and the first guide wall gradually extends inward in an arc shape from the position of the first slot; A first torsion spring is provided at the rotation axis position of the first swing seat, and the first torsion spring is used to apply an elastic force to the first swing seat to swing toward a position in the same direction as the opening of the first arc-shaped slot; A second torsion spring is provided at the rotation axis position of the first locking seat, and the second torsion spring is used to force the first swing seat to swing toward a position close to the first arc-shaped groove.

4. The seat armrest table according to claim 3, characterized in that: The first unlocking device includes a button vertically slidably mounted on the top of the housing, a rocker connected to one end of the button, and a linkage rope connected to the other end of the rocker. The first locking seat is provided with a tail on the rear wall away from the first hook. The tail is connected to the other end of the linkage rope. When pressure is applied to the button, the linkage rope is pulled upward, and the first locking seat is driven to swing backward against the elastic force of the second torsion spring.

5. The seat armrest table according to claim 1, characterized in that: The winding device is a coil spring and a rotating wheel arranged outside the coil spring, and the outer wall of the rotating wheel is used for winding the driving rope; The sliding cavity includes a column cavity and a plate cavity, wherein the vertical shaft and the support shaft extend into the column cavity, and the first plate body and the second plate body are folded and extend into the plate cavity; The column cavity and the plate cavity are in a "T" shape, and the guide slide seat is in a "T" shape; Guide rails are provided along the length direction on both sides of the sliding cavity, and the guide slide seat is provided with sliders matched with the guide rails. A plurality of rollers are also provided at the bottom and top of the sliding cavity.

6. The seat armrest table according to claim 1, characterized in that: The second locking device is provided with two groups and is spaced apart. The second locking device includes two spaced apart second positioning plates, a second swing seat and a second locking seat swingably mounted between the second positioning plates. The second positioning plate is provided with a second arc-shaped groove, and the opening of the second arc-shaped groove is arranged downward; The second swing seat is provided with a second side groove, and the second side groove can swing between a position in the same direction as the opening direction of the second arc-shaped groove or a position tangent to the opening direction of the second arc-shaped groove; When locking is required, the locking pin is engaged with the second side groove and causes the second side groove to swing toward a position tangent to the second arc-shaped groove; The second locking seat is used to lock the second side groove of the second swing seat at a position tangent to the opening direction of the second arc groove.

7. The seat armrest table according to claim 6, characterized in that: The second swing seat is extended with two second side arms arranged opposite to each other, and the two second side arms form the second side groove. The second side arm located at the top is provided with a second inwardly recessed slot, and the second locking seat is provided with a second hook that matches the second slot; The second side arm is provided with a second guide wall on the upper end wall of the second slot, and the second guide wall gradually extends inward in an arc shape from the position of the second slot; A third torsion spring is provided at the rotation axis position of the second swing seat, and the third torsion spring is used to apply an elastic force to the second swing seat to swing toward a position in the same direction as the opening of the second arc-shaped slot; A fourth torsion spring is provided at the rotation axis position of the second locking seat, and the fourth torsion spring is used to force the first swing seat to swing toward a position close to the first arc-shaped groove.

8. The seat armrest table according to claim 7, characterized in that: The two second locking seats extend toward the opposite wall surfaces to form second unlocking blocks, and the upper walls of the second unlocking blocks are inclined surfaces; The second unlocking device includes a guide slide hole provided on the vertical shaft and a top column provided in the guide slide hole. The lower end of the top column is provided with a swinging crank seat, and the crank seat extends forward to the position of the inclined surface; The top column can slide between a position of sliding upward or a position of driving the crank seat to move toward the inclined surface.

9. The seat armrest table according to claim 8, characterized in that: The guide slide seat is provided with a first pivot groove, the vertical shaft is pivotally mounted in the first pivot groove, a top spring is provided between the guide slide hole and the top column, and the top spring is used to apply an upward elastic force to the vertical shaft top column; When the vertical shaft swings, the crank seat swings accordingly to limit the swing amplitude of the vertical shaft.

10. The seat armrest table according to claim 9, characterized in that: The top of the vertical shaft is provided with two pivoting parts spaced apart from each other, the support shaft is pivotally mounted between the two pivoting parts, and the rear end of the support shaft is provided with a convex surface. When the vertical shaft and the supporting shaft are in the same vertical direction, the convex surface abuts against the upper end of the top column and forces the crank seat to move downward.

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