Integrated seat tray structure

Abstract

The invention relates to the technical field of integrated seat tray structures, and discloses an integrated seat tray structure which is characterized in that a seat serves as a carrier and is provided with at least one supporting surface for bearing buttocks, and the lower end face of the supporting surface is provided with the following components; the tray comprises a tray bottom frame, a tray support backup plate, a crank rod and a longitudinal support, at least one sliding point in sliding connection with the tray bottom frame is arranged at the upper end of the longitudinal support, the crank rod is inserted into the lower end of the longitudinal support in a sliding mode relative to the longitudinal support, and the crank rod moves along the outer arc line with the inner arc circle center of the crank rod as the base point. The tray support backup plate is fixed to the front end of the crank rod after the longitudinal support moves to the front limit of the tray bottom frame. The foldable tray is high in integration degree and convenient to store, compared with an existing traditional tray arranged on the side edge, the foldable tray is firmer and more reliable after being unfolded, and the supporting angle and height of the foldable tray can be changed by adjusting the moving stroke of the foldable tray very conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of integrated seat tray structures, in particular to an integrated seat tray structure. Background Art

[0002] In order to facilitate gatherings or discussions without a table, some chairs are equipped with a small table that can be leaned on. It is usually set in the armrest on one side and can be folded and stored through a multi-jointed rod;

[0003] However, we found that due to the limited position of the single-sided armrest, this design structure limits the adjustable range of the small table, and the supporting structure is not stable enough, and only slight and simple leaning movements can be performed.

[0004] This case is proposed to solve or improve the shortcomings or deficiencies of the prior art. Summary of the invention

[0005] The present invention is achieved by adopting the following technical solutions:

[0006] An integrated seat tray structure, comprising:

[0007] The seat, as a vehicle, is provided with at least one support surface for supporting the buttocks, and the following components are provided on the lower end surface of the support surface;

[0008] A pallet bottom frame, a pallet support plate, a crank rod, and a longitudinal support, wherein the upper end of the longitudinal support is provided with at least one sliding point slidably connected to the pallet bottom frame, and the crank rod is slidably inserted into its lower end relative to the longitudinal support, and the crank rod moves along its outer arc line with the center of the inner arc of the crank rod as the base point, and the pallet support plate is fixed to the front end of the crank rod. When the longitudinal support moves to the front limit of the pallet bottom frame, the crank rod is pulled out as shown in the figure, and the actual supporting position of the pallet support plate is adjusted by adjusting the front and rear positions of the longitudinal support, and the supporting elevation angle and supporting height of the pallet support plate are changed by adjusting the length of the crank rod pulled out relative to the longitudinal support, thereby realizing multi-degree-of-freedom adjustment;

[0009] A force storage rotating part is rotatably arranged at the lower end of the longitudinal bracket and abuts against the arc-shaped wall surface of the crank rod during its movement, thereby rotating to stretch and store force on the elastic component connected to the force storage rotating part so that the force storage rotating part has a tendency force to reset the crank rod;

[0010] The locking mechanism is arranged on the longitudinal support and the bottom frame of the tray. After the longitudinal support and / or the crank rod reach a suitable position, the locking mechanism is activated to fix the crank rod and / or the longitudinal support.

[0011] In a preferred embodiment, a slide groove is provided on the lower end surface of the bottom frame of the tray, a transverse connecting rod is fixedly provided on the upper end of the longitudinal bracket, a transverse connecting rod slider is fixedly provided on the end of the transverse connecting rod, and the transverse connecting rod slider is slidably set in the slide groove so that the longitudinal bracket can slide forward and backward along the slide groove to adjust its position relative to the bottom frame of the tray. Its structure is located at the bottom of the seat for easy storage.

[0012] In a preferred embodiment, an adjustment hole is provided at the bottom of the longitudinal bracket, which is in contact with the inner and outer arc-shaped wall surfaces of the crank rod, so that the crank rod can move forward and backward at the lower end of the longitudinal bracket, and at least two rubber rollers spaced apart up and down are provided in the longitudinal bracket, which contact and rotate with the arc-shaped wall surface of the crank rod during the movement of the crank rod, thereby effectively improving the movement smoothness of the crank rod.

[0013] In a preferred embodiment, the interior of the longitudinal bracket is hollow, and an adjustment hole is provided at the bottom of the longitudinal bracket, which is in contact with the inner and outer arc-shaped wall surfaces of the crank rod for the crank rod to move forward and backward at the lower end of the longitudinal bracket. The force storage rotating part is a gear rotatably arranged in the longitudinal bracket, and there are teeth on the inner arc surface of the crank rod that mesh with the force storage rotating part, and an elastic band is wound on the rotating shaft of the force storage rotating part, and one end of the elastic band is fixed to the upper end of the inner wall of the longitudinal bracket.

[0014] In a preferred embodiment, an elastic reset component is connected between the longitudinal bracket and the bottom frame of the tray, and the elastic reset component pulls the longitudinal bracket backward to move it to a storage limit position.

[0015] In a preferred embodiment, a hand-tightened threaded fastener is threadedly connected on the transverse link slider, and after the transverse link slider is moved to any position of the bottom frame of the pallet, the hand-tightened threaded fastener can be tightened to lock the transverse link slider.

[0016] In a preferred embodiment, a hand-tightened threaded fastener is threadedly connected to the side wall of the lower end of the longitudinal bracket. After the crank rod is moved to any position, the hand-tightened threaded fastener can be tightened to lock the longitudinal bracket, and a limiting tail plate is fixed at the tail end of the crank rod.

[0017] In a preferred embodiment, bolt holes are provided on the end and / or side of the tray bottom frame for fixing the tray bottom frame to the lower end surface of the seat by bolts.

[0018] The advantages and positive effects of the present invention are:

[0019] 1. It has a high degree of integration and is easy to store. When unfolded, it is more solid and reliable than the existing traditional side trays, and its supporting angle and height can be changed by adjusting its moving stroke, which is very convenient.

[0020] 2. After being stored, it is completely under the seat and will not bulge out like the traditional tray set on the side, making it more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the assembly structure of the present invention;

[0025] Figure 4 is a schematic diagram of the structure of the present invention in a storage position;

[0026] Figure 5 It is a schematic diagram of the structure of the present invention in the unfolded position.

[0027] Markings in the figure: 10, tray bracket back plate; 11, tray bottom frame; 12, elastic reset component; 13, transverse connecting rod; 14, longitudinal bracket; 15, limit tail plate; 16, power storage rotating part; 17, crank rod; 18, transverse connecting rod slider; 19, slide groove; 20, seat. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0030] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1-5 As shown, the integrated seat tray structure of the present invention comprises:

[0032] The seat 20 is used as a carrier and is provided with at least one support surface for supporting the buttocks, and the following components are provided on the lower end surface of the support surface;

[0033] A pallet bottom frame 11, a pallet support plate 10, a crank rod 17, and a longitudinal support 14, wherein the upper end of the longitudinal support 14 is provided with at least one sliding point slidably connected to the pallet bottom frame 11, and the crank rod 17 is slidably inserted into the lower end relative to the longitudinal support 14, and the crank rod 17 moves along its outer arc line with the inner arc center of the crank rod 17 as the base point, the pallet support plate 10 is fixed to the front end of the crank rod 17, and when the longitudinal support 14 moves to the front limit of the pallet bottom frame 11, the crank rod 17 is pulled out to Figure 5 As shown, the actual supporting position of the tray support plate 10 is adjusted by adjusting the front and rear positions of the longitudinal support 14, and the supporting elevation angle and supporting height of the tray support plate 10 are changed by adjusting the length of the crank rod 17 pulled out relative to the longitudinal support 14, thereby achieving multi-degree-of-freedom adjustment;

[0034] The force storage rotating part 16 is rotatably arranged at the lower end of the longitudinal bracket 14 and abuts against the arc-shaped wall surface of the crank rod 17 during its movement, thereby rotating to stretch and store force on the elastic component connected to the force storage rotating part 16 so that the force storage rotating part 16 has a tendency force to reset the crank rod 17;

[0035] The locking mechanism is arranged on the longitudinal support 14 and the bottom frame 11 of the tray. After the longitudinal support 14 and / or the crank rod 17 reach a suitable position, the locking mechanism is activated to fix the crank rod 17 and / or the longitudinal support 14 .

[0036] In a preferred embodiment, a slide groove 19 is provided on the lower end surface of the tray bottom frame 11, a transverse connecting rod 13 is fixedly provided on the upper end of the longitudinal bracket 14, and a transverse connecting rod slider 18 is fixedly provided on the end of the transverse connecting rod 13. The transverse connecting rod slider 18 is slidably set in the slide groove 19 so that the longitudinal bracket 14 can slide forward and backward along the slide groove 19 relative to the tray bottom frame 11 to adjust its position. Its structure is located at the bottom of the seat 20 for easy storage.

[0037] In a preferred embodiment, an adjustment hole is provided at the bottom of the longitudinal bracket 14, which is in contact with the inner and outer arc-shaped wall surfaces of the crank rod 17, so that the crank rod 17 can move forward and backward at the lower end of the longitudinal bracket 14, and at least two rubber rollers spaced up and down are provided in the longitudinal bracket 14, which contact and rotate with the arc-shaped wall surface of the crank rod 17 during the movement of the crank rod 17, thereby effectively improving the movement smoothness of the crank rod 17.

[0038] In a preferred embodiment, the interior of the longitudinal bracket 14 is hollow, and an adjustment hole is provided at the bottom of the longitudinal bracket 14, which is fitted with the inner and outer arc-shaped wall surfaces of the crank rod 17 for the crank rod 17 to move back and forth at the lower end of the longitudinal bracket 14. The force storage rotating part 16 is a gear rotatably arranged in the longitudinal bracket 14, and there are teeth on the inner arc surface of the crank rod 17 that mesh with the force storage rotating part 16, and an elastic band is wound on the rotating shaft of the force storage rotating part 16, and one end of the elastic band is fixed to the upper end of the inner wall of the longitudinal bracket 14.

[0039] In a preferred embodiment, an elastic reset component 12 is connected between the longitudinal bracket 14 and the tray bottom frame 11, and the elastic reset component 12 pulls the longitudinal bracket 14 backward to move it to a storage limit position.

[0040] In a preferred embodiment, a hand-tightened threaded fastener is threadedly connected to the transverse link slider 18, and after the transverse link slider 18 is moved to any position of the pallet bottom frame 11, the hand-tightened threaded fastener can be tightened to lock the transverse link slider 18.

[0041] In a preferred embodiment, a hand-tightened threaded fastener is threadedly connected to the side wall of the lower end of the longitudinal bracket 14. After the crank rod 17 is moved to any position, the hand-tightened threaded fastener can be tightened to lock the longitudinal bracket 14. A limiting tail plate 15 is fixed to the tail end of the crank rod 17.

[0042] In a preferred embodiment, bolt holes are provided on the end and / or side of the tray bottom frame 11 for fixing the tray bottom frame 11 to the lower end surface of the seat 20 by bolts.

[0043] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. An integrated seat tray structure, characterized in that: include; The seat (20) is used as a carrier and is provided with at least one support surface for supporting the buttocks, and the following components are provided on the lower end surface of the support surface; A tray bottom frame (11), a tray support plate (10), a crank rod (17), and a longitudinal support (14), wherein the upper end of the longitudinal support (14) is provided with at least one sliding point slidably connected to the tray bottom frame (11), and the crank rod (17) is slidably inserted into the lower end of the longitudinal support (14), and the crank rod (17) moves along its outer arc line with the inner arc center of the crank rod (17) as the base point, and the tray support plate (10) is fixed on the crank rod ( 17), when the longitudinal support (14) moves to the front limit of the bottom frame (11) of the pallet, the crank rod (17) is pulled out to the position shown in FIG. (5), and the actual supporting position of the pallet support plate (10) is adjusted by adjusting the front and rear positions of the longitudinal support (14), and the supporting elevation angle and supporting height of the pallet support plate (10) are changed by adjusting the length of the crank rod (17) pulled out relative to the longitudinal support (14), thereby realizing multi-degree-of-freedom adjustment; A force storage rotating part (16) is rotatably arranged at the lower end of the longitudinal bracket (14) and abuts against the arc-shaped wall surface of the crank rod (17) during its movement, thereby rotating to stretch and store force on an elastic component connected to the force storage rotating part (16) so that the force storage rotating part (16) has a tendency force to reset the crank rod (17); A locking mechanism is arranged on the longitudinal support (14) and the bottom frame (11) of the tray. When the longitudinal support (14) and / or the crank rod (17) reach a suitable position, the locking mechanism is activated to fix the crank rod (17) and / or the longitudinal support (14).

2. The integrated seat tray structure according to claim 1, characterized in that: A slide groove (19) is provided on the lower end surface of the tray bottom frame (11), a transverse connecting rod (13) is fixedly provided on the upper end of the longitudinal bracket (14), a transverse connecting rod slider (18) is fixedly provided at the end of the transverse connecting rod (13), and the transverse connecting rod slider (18) is slidably set in the slide groove (19) so that the longitudinal bracket (14) can slide forward and backward along the slide groove (19) relative to the tray bottom frame (11) to adjust its position. The structure is located at the bottom of the seat (20) for easy storage.

3. The integrated seat tray structure according to claim 2, characterized in that: An adjustment hole is provided at the bottom of the longitudinal bracket (14) and is fitted with the inner and outer arcuate walls of the crank rod (17) so that the crank rod (17) can move forward and backward at the lower end of the longitudinal bracket (14), and at least two rubber rollers spaced apart from each other are provided in the longitudinal bracket (14) so ​​as to contact and rotate with the arcuate walls of the crank rod (17) during the movement of the crank rod (17), thereby effectively improving the movement smoothness of the crank rod (17).

4. The integrated seat tray structure according to claim 2, characterized in that: The interior of the longitudinal bracket (14) is hollow, and an adjustment hole is provided at the bottom of the longitudinal bracket (14) to fit the inner and outer arc-shaped wall surfaces of the crank rod (17) so that the crank rod (17) can move forward and backward at the lower end of the longitudinal bracket (14). The power storage rotating part (16) is a gear rotatably arranged in the longitudinal bracket (14), and there are teeth on the inner arc surface of the crank rod (17) to mesh with the power storage rotating part (16), and an elastic band is wound on the rotating shaft of the power storage rotating part (16), and one end of the elastic band is fixed to the upper end of the inner wall of the longitudinal bracket (14).

5. An integrated seat tray structure according to any one of claims 1 to 4, characterized in that: An elastic reset component (12) is connected between the longitudinal support (14) and the tray bottom frame (11), and the elastic reset component (12) pulls the longitudinal support (14) backward to move it to a storage limit position.

6. The integrated seat tray structure according to claim 5, characterized in that: A hand-tightened threaded fastener is threadedly connected to the transverse link slider (18). After the transverse link slider (18) is moved to any position of the bottom frame (11) of the pallet, the hand-tightened threaded fastener is tightened to lock the transverse link slider (18).

7. The integrated seat tray structure according to claim 6, characterized in that: A hand-tightened threaded fastener is threadedly connected to the side wall of the lower end of the longitudinal bracket (14). After the crank rod (17) is moved to any position, the hand-tightened threaded fastener is tightened to lock the longitudinal bracket (14). A limiting tail plate (15) is fixedly provided at the tail end of the crank rod (17).

8. The integrated seat tray structure according to claim 7, characterized in that: Bolt holes are provided at the end and / or side of the tray bottom frame (11) for fixing the tray bottom frame (11) to the lower end surface of the seat (20) by means of bolts.

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