Airplane small table board telescopic rod for lifting and supporting

Abstract

The utility model relates to the technical field of airplane table boards, in particular to a lifting and supporting airplane small table board telescopic rod which comprises a telescopic rod piece, a first spring rod is fixedly connected in a first connecting rod, a supporting assembly is arranged outside the first connecting rod, a second connecting rod is fixedly connected outside a gear rod, and a second spring rod is arranged outside the second connecting rod. A second spring rod is fixedly connected to the interior of the second connecting rod, and a limiting ring is movably connected to the front face of the first connecting rod. According to the small airplane table board telescopic rod for lifting and supporting, the table board is rotationally put down by pulling down the table board, at the moment, a first connecting rod and a second connecting rod are subjected to angle adjustment through a supporting assembly, the opening angle amplitude of the supporting assembly is limited through buffer springs on a first spring rod and a second spring rod, and the table board and a chair back structure are adjusted to the 90-degree position; at the moment, a limiting ring is shifted to be meshed with the outer side of a gear rod, the opening angle amplitude of the first connecting rod and the second connecting rod is limited, and therefore the stable placement effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft table boards, in particular to a telescopic rod for a lifting and supporting aircraft small table board. Background Art

[0002] An airplane table, as the name implies, is a tabletop structure that can provide passengers with a place to place small items. It is commonly used in the seat back structure of airplane passenger seats. In the prior art, a small table is provided on the seat backs of airplanes, trains or cruise ships. The small table structure is used to place some of the passengers' carry-on items, such as snacks, water cups, mobile phones, tablet computers or books and magazines, etc., which can improve the convenience and comfort of passengers when riding.

[0003] After searching, it was found that a utility model patent with Chinese patent announcement number CN212605841U disclosed a table board for civil aircraft. The aircraft table board in the utility model patent is rotatably connected to both sides of the table board body by setting a flat panel bracket, flipping the flat panel bracket backward from a horizontal state and supported by the rear edge of the first groove, sliding the slide backward and against the flat panel bracket. At this time, the first groove is filled with the slide, and the entire table board body is in a stable structure. However, combined with the flat panel bracket and slide board structure of the aircraft table board, it can be seen that the flat panel bracket is rotatably connected to both sides of the table board body. In order to avoid a 360-degree rotation of the table board body, the table board body uses the slide board to connect the flat panel bracket to the table board body. The table top structure does not have a structure for limiting the position of the skateboard. When the skateboard is separated from the axis of the tablet bracket by the force applied to the table top body, the tablet bracket loses its limiting effect and causes the table top body to overturn. At this time, objects such as water cups or electronic devices on the table top body may fall and be damaged, which may not only cause property losses to passengers but also pose a certain threat to passenger safety. Therefore, the structure of the foldable table top for civil aircraft needs to be further improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a telescopic rod for lifting and supporting a small aircraft table, which has the advantage of conveniently supporting the placement angle of the table and stably supporting the table. It solves the problem in the above-mentioned background technology that the flat panel bracket and the slide board in the table for civil aircraft lack a limiting component, which may cause the supported table body to overturn when subjected to external force.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic rod for lifting and supporting a small table in an airplane, comprising a telescopic rod and a table top fixedly connected to the telescopic rod, wherein a supporting folding structure is arranged on the top of the telescopic rod;

[0006] The supporting folding structure includes a bearing seat fixed to the top of the telescopic rod, a first connecting rod is rotatably connected to the inner side of the bearing seat, a first spring rod is fixedly connected to the inside of the first connecting rod, a supporting assembly is arranged on the outside of the first connecting rod, the first connecting rod is rotatably connected to a gear rod at an end away from the bearing seat, a second connecting rod is fixedly connected to the outside of the gear rod, a second spring rod is fixedly connected to the inside of the second connecting rod, the second connecting rod is rotatably connected to a rotating shaft seat at an end away from the gear rod, and the front side of the first connecting rod is movably connected to a limiting ring.

[0007] Furthermore, the inner side of the bearing seat is rotatably connected to a No. 1 rotating rod, one end of the first connecting rod is fixedly connected to the outer side of the No. 1 rotating rod, a No. 1 sliding groove is provided inside the first connecting rod, the first spring rod includes a No. 1 sliding rod fixed inside the No. 1 sliding groove, one end of the No. 1 sliding rod is sleeved and fixed with a No. 1 buffer spring, and the outer side of the No. 1 sliding rod is slidably connected to a No. 1 sleeve block.

[0008] Furthermore, the support assembly includes a slot plate rotatably connected to the top of the No. 1 sleeve block, the slot plate is rotatably connected to a No. 2 rotating rod on a side away from the No. 1 sleeve block, and the No. 2 rotating rod is externally fixedly connected to a limiting rod.

[0009] Furthermore, a No. 2 slide groove is opened inside the second connecting rod, and the second spring rod includes a No. 2 slide rod fixed inside the No. 2 slide groove, a No. 2 buffer spring is sleeved and fixed on one end of the No. 2 slide rod, and a No. 2 sleeve block is slidably connected to the outside of the No. 2 slide rod, and the limit rod is rotatably connected to the top of the No. 2 sleeve block at the end away from the slot plate.

[0010] Furthermore, a connecting plate is fixedly installed on the front side of the first connecting rod, the right side of the limiting ring is rotatably connected to the inner side of the connecting plate through a support rod, and the inner side of the limiting ring is provided with an inner tooth layer structure adapted to the outer gear ring of the gear rod.

[0011] Furthermore, a pin hole is provided on the right side of the telescopic rod, an axial pin rod is inserted into the pin hole, a number of threaded holes are provided inside the telescopic rod, each of the threaded holes is connected to the desktop panel through a positioning bolt rod, and a No. 3 rotating rod is rotatably connected to the left side of the desktop panel.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The telescopic rod of the aircraft small table supported by the lifting device pulls down the table top so that it rotates along the third rotating rod and is lowered. At this time, the first connecting rod is adjusted by the angle change between the support assembly and the second connecting rod, and the buffer springs on the first spring rod and the second spring rod are used to limit the angular amplitude of the support assembly, so that the table top and the chair back structure are adjusted to a 90-degree position. At this time, the limit ring is turned, and the inner tooth layer of the limit ring is engaged with the outer side of the gear rod to limit the angular amplitude of the first connecting rod and the second connecting rod, so that the table top always maintains a 90-degree angle when being lowered, achieving a stable placement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the desktop panel of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the telescopic rod structure in perspective;

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the first connecting rod and the second connecting rod in the viewing angle;

[0018] Figure 4 for Figure 3 Schematic diagram of the limiting ring structure in the viewing angle;

[0019] Figure 5 for Figure 2 Schematic diagram of the structure of the unsupported component in perspective;

[0020] Figure 6 for Figure 5 Schematic diagram of the structure of the first connecting rod and the second connecting rod in the viewing angle;

[0021] Figure 7 for Figure 6 A schematic diagram of the first spring rod structure in perspective;

[0022] Figure 8 for Figure 6 Schematic diagram of the second spring rod structure in perspective.

[0023] In the figure: 1. telescopic rod; 2. desktop panel; 3. supporting folding structure; 301. bearing seat; 302. first connecting rod; 303. first spring rod; 304. supporting assembly; 3041. slot plate; 3042. limiting rod; 305. gear rod; 306. second connecting rod; 307. second spring rod; 308. rotating shaft seat; 309. limiting ring; 4. axle pin rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-8 A telescopic rod for a lifting and supporting airplane small table comprises a telescopic rod 1 and a desktop panel 2 fixedly connected to the telescopic rod 1, the desktop panel 2 can hold some small carry-on items, a cup groove is provided on the top of the desktop panel 2, a supporting folding structure 3 is provided on the top of the telescopic rod 1, a pin hole is provided on the right side of the telescopic rod 1, an axle pin rod 4 is inserted into the pin hole, and the axle pin rod 4 fixes the telescopic rod 1 to the front and rear sides of the desktop panel 2.

[0026] The supporting folding structure 3 includes a bearing seat 301 fixed to the top of the telescopic rod 1, the inner side of the bearing seat 301 is rotatably connected to the first connecting rod 302, the inner side of the first connecting rod 302 is fixedly connected to the first spring rod 303, the outer side of the first connecting rod 302 is provided with a supporting assembly 304, the slot plate 3041 slides on the first spring rod 303, and the slot plate 3041 is limited and supported by a No. 1 buffer spring, the first connecting rod 302 is rotatably connected to the gear rod 305 at one end away from the bearing seat 301, and the outer side of the gear rod 305 is fixedly connected to the first spring rod 303, and the first spring rod 303 is fixedly connected to the first spring rod 303, and the first spring rod 303 is fixedly connected to the first spring rod 303, and the first spring rod 303 is fixedly connected to the first spring rod 303, and the first spring rod 303 is fixedly supported by the first buffer spring, and the first connecting rod 302 is rotatably connected to the gear rod 305 at one end away from the bearing seat 301, and the outer side of the gear rod 305 is fixedly connected to the first spring rod 303, and the first spring rod 303 ... The first connecting rod 302 is fixedly connected to the second connecting rod 306, and the second spring rod 307 is fixedly connected to the inside of the second connecting rod 306. The limiting rod 3042 slides on the second spring rod 307, and the limiting rod 3042 is limited by the second buffer spring. The second connecting rod 306 is rotatably connected to the shaft seat 308 at the end away from the gear rod 305. The second connecting rod 306 is connected to the chair back structure through the shaft seat 308. The front of the first connecting rod 302 is movably connected to the limiting ring 309, and the limiting ring 309 is engaged with the outer side of the gear rod 305.

[0027] When implementing, follow these steps:

[0028] 1) First, pull down the table top 2 so that it rotates along the third rotating rod and lowers down, and the angle between the slot plate 3041 and the limit rod 3042 changes;

[0029] 2) Then, the buffer spring structure of the first spring rod 303 and the second spring rod 307 is used to limit the angular range of the slot plate 3041 and the limiting rod 3042;

[0030] 3) The slot plate 3041 and the limit rod 3042 are then used to extend and support the first connecting rod 302 and the second connecting rod 306, so that the table top 2 and the chair back structure are kept at a 90-degree position;

[0031] 4) Finally, the limiting ring 309 is moved to engage with the outer side of the gear rod 305 to limit the angular range of the first connecting rod 302 and the second connecting rod 306 .

[0032] according to Figure 2 and Figure 3 As shown, the first connecting rod 302 is rotationally connected to the inner side of the bearing seat 301 through a No. 1 rotating rod, and the second connecting rod 306 is rotationally connected to the first connecting rod 302 through a gear rod 305, so that the opening angle of the first connecting rod 302 and the second connecting rod 306 can be adjusted, and the first spring rod 303 includes a No. 1 sliding rod and a No. 1 buffer spring.

[0033] according to Figure 2 and Figure 3 as well as Figure 6 As shown, the second spring rod 307 includes a No. 2 slide bar and a No. 2 buffer spring, the support assembly 304 includes a slot plate 3041 and a limit rod 3042, the limit rod 3042 can be folded and stored on the inner side of the slot plate 3041, the slot plate 3041 is rotatably connected to the No. 1 sleeve block on the No. 1 slide bar, and the limit rod 3042 is rotatably connected to the No. 2 sleeve block on the No. 2 slide bar. When the slot plate 3041 and the limit rod 3042 rotate to 180 degrees, the No. 1 buffer spring and the No. 2 buffer spring respectively limit the moving position of the No. 1 sleeve block and the No. 2 sleeve block, thereby controlling the maximum angular amplitude of the slot plate 3041 and the limit rod 3042 to be 180 degrees.

[0034] according to Figure 3 and Figure 4 As shown, the limit ring 309 is rotatably connected to the outside of the first connecting rod 302 through a connecting plate and a support rod, and the inner side of the limit ring 309 is adapted to mesh with the outer gear ring of the gear rod 305 through an inner tooth layer structure, thereby limiting the angular amplitude of the first connecting rod 302 and the second connecting rod 306 by limiting the rotation of the gear rod 305.

[0035] according to Figure 1 and Figure 2 As shown, the telescopic rod 1 is fixed to the front and rear sides of the desktop panel 2 through the corresponding pin hole of the axle pin rod 4 and the corresponding threaded hole of the positioning bolt rod. The left side of the desktop panel 2 is rotatably connected to the back structure of the seat through the third rotating rod. At the same time, the second connecting rod 306 is rotatably connected to the back structure through the rotating shaft seat 308, so as to facilitate the retraction and extension of the desktop panel 2.

[0036] In summary, the telescopic rod of the lifting support of the aircraft small table is used to fix the telescopic rod 1 on the front and rear sides of the desktop panel 2 by using the shaft pin rod 4 and the positioning bolt rod structure. At this time, the left side of the desktop panel 2 is rotatably connected to the seat back structure through the third rotating rod, which is convenient for retracting the desktop panel 2. Then, the top of the second connecting rod 306 is rotatably connected to the seat back structure through the rotating shaft seat 308. By pulling down the desktop panel 2, it is rotated and lowered along the third rotating rod. At this time, the first connecting rod 302 is adjusted by the angle change between the support component 304 and the second connecting rod 306, and the first spring rod 303 and the second spring rod 307 are used. The buffer spring limits the angular amplitude of the support component 304, so that the table top 2 and the chair back structure are adjusted to a 90-degree position. At this time, the limit ring 309 is turned, and the inner tooth layer of the limit ring 309 is engaged with the outer side of the gear rod 305 to limit the angular amplitude of the first connecting rod 302 and the second connecting rod 306, so that the table top 2 always maintains a 90-degree angle when lowered, achieving a stable placement effect, and solving the problem that the flat panel bracket and the slide board in the table top used for civil aircraft in the above-mentioned background technology lack a limit component, which may cause the supported table top body to be in danger of overturning when subjected to external force.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic rod for lifting and supporting an airplane small table, comprising a telescopic rod (1) and a table top (2) fixedly connected to the telescopic rod (1), characterized in that: A supporting folding structure (3) is provided on the top of the telescopic rod (1); The supporting folding structure (3) comprises a bearing seat (301) fixed to the top of the telescopic rod (1); a first connecting rod (302) is rotatably connected to the inner side of the bearing seat (301); a first spring rod (303) is fixedly connected to the inside of the first connecting rod (302); a supporting assembly (304) is arranged on the outside of the first connecting rod (302); a gear rod (305) is rotatably connected to the end of the first connecting rod (302) away from the bearing seat (301); a second connecting rod (306) is fixedly connected to the outside of the gear rod (305); a second spring rod (307) is fixedly connected to the inside of the second connecting rod (306); a rotating shaft seat (308) is rotatably connected to the end of the second connecting rod (306) away from the gear rod (305); and a limiting ring (309) is movably connected to the front of the first connecting rod (302).

2. The telescopic rod for lifting and supporting an airplane tray table according to claim 1, characterized in that: The inner side of the bearing seat (301) is rotatably connected to a No. 1 rotating rod, one end of the first connecting rod (302) is fixedly connected to the outer side of the No. 1 rotating rod, the interior of the first connecting rod (302) is provided with a No. 1 sliding groove, the first spring rod (303) comprises a No. 1 sliding rod fixed inside the No. 1 sliding groove, one end of the No. 1 sliding rod is sleeved and fixed with a No. 1 buffer spring, and the exterior of the No. 1 sliding rod is slidably connected to a No. 1 sleeve block.

3. The telescopic rod for lifting and supporting an airplane tray table according to claim 2, characterized in that: The support assembly (304) comprises a slot plate (3041) rotatably connected to the top of the No. 1 sleeve block, the slot plate (3041) is rotatably connected to a No. 2 rotating rod on a side away from the No. 1 sleeve block, and the No. 2 rotating rod is externally fixedly connected to a limit rod (3042).

4. The telescopic rod for lifting and supporting an airplane tray table according to claim 3, characterized in that: A No. 2 slide groove is provided inside the second connecting rod (306), and the second spring rod (307) includes a No. 2 slide rod fixed inside the No. 2 slide groove, a No. 2 buffer spring is sleeved and fixed on one end of the No. 2 slide rod, and a No. 2 sleeve block is slidably connected to the outside of the No. 2 slide rod, and the limit rod (3042) is rotatably connected to the top of the No. 2 sleeve block at the end away from the groove plate (3041).

5. The telescopic rod for lifting and supporting an airplane tray table according to claim 1, characterized in that: A connecting plate is fixedly mounted on the front side of the first connecting rod (302), the right side of the limiting ring (309) is rotatably connected to the inner side of the connecting plate via a support rod, and an inner tooth layer structure adapted to the outer tooth ring of the gear rod (305) is provided on the inner side of the limiting ring (309).

6. The telescopic rod for lifting and supporting an airplane tray table according to claim 1, characterized in that: The right side of the telescopic rod (1) is provided with a pin hole, an axle pin rod (4) is inserted into the pin hole, a number of threaded holes are provided inside the telescopic rod (1), each of the threaded holes is connected to the desktop panel (2) through a positioning bolt rod, and the left side of the desktop panel (2) is rotatably connected to a third rotating rod.

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