Airplane seat leg connecting mechanism

Abstract

The utility model relates to an aircraft seat leg connecting mechanism which comprises a seat leg rod, a second connecting piece is arranged on the left side of a first connecting piece, a groove plate is connected to the bottom of the second connecting piece in a clamped mode, a sliding table seat is fixedly connected to the outer portion of the groove plate, and a pressing rod is rotationally connected to the inner side of a bearing seat. And a locking piece is arranged in the sliding table seat. According to the aircraft seat leg connecting mechanism, the groove plates are connected with the front side and the rear side of the first connecting piece in a clamped mode and fixed through the second connecting piece and a plurality of fixing tightening latch structures, when a pressing rod is pressed into a sliding table base, a pressing block is extruded to move downwards, and the outer side of the pressing block forces a limiting rod to extend into a limiting hole in the inner wall of a seat sliding rail; the sliding table seat and the seat sliding rail are limited and locked, then the positioning pin rod transversely penetrates through the bearing seat and the pressing rod in a penetrating mode, the pressing rod is fixed to the inner side of the bearing seat, and therefore position locking can be conveniently conducted on the seat structure and the seat leg rod.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft seats, in particular to an aircraft seat leg connecting mechanism. Background Art

[0002] Aircraft is one of the most important means of long-distance transportation in modern times. It can not only carry passengers, but also provide convenience for cargo consignment. The cabin of the aircraft will be equipped with seat infrastructure to facilitate longer riding time. The aircraft seats will be connected to the ground components through the legs and auxiliary connection structures, so it is necessary to ensure their excellent strength to provide protection for the safety of passengers.

[0003] After searching, it was found that a utility model patent with Chinese patent publication number CN205819573U disclosed a cargo aircraft seat leg connection mechanism. The seat leg connection mechanism in the utility model patent is to slide and plug the anchor bolt part of the seat leg with the inner side of the ground slide rail, rotate the anchor bolt 90 degrees to tighten it, and then tighten it with a screw disk to fix the anchor bolt to the inner side of the slide rail to achieve the locking of the seat and the leg. However, combined with the connection method between the anchor bolt and the ground slide rail in the aircraft seat leg connection mechanism, it can be seen that the axial direction of the tightening and loosening rotation of the screw disk is consistent with the axial direction of the upper leg movement, that is, passengers with different weights The passenger's sitting up, turning over or twisting postures on the seat may cause a slight deflection of the screw disk over a long period of time, causing the tightening degree of the screw disk on the slide rail and the anchor bolt to change. The chair leg structure only locks the anchor bolt on the inner side of the slide rail through the screw disk. When the looseness of the screw disk or the damage degree of the inner thread of the screw disk reaches a critical point, the screw disk will lose the locking effect on the anchor bolt. At this time, the anchor bolt can rotate freely, causing the seat structure to move randomly along the slide rail, affecting the passenger's riding experience. Therefore, the leg locking structure of the seat leg connection mechanism needs to be further improved, and thus an aircraft seat leg connection mechanism is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an aircraft seat leg connection mechanism, which has the advantage of being able to stably lock the seat legs, and solves the problem in the above-mentioned background technology that the axial direction of the tightening and tightening rotation of the screw disk of the cargo aircraft seat leg connection mechanism is consistent with the axial direction of the movement of the upper leg, and when the seat is affected by the activities of the passengers, the tightness of the screw disk may change, causing the seat legs to lose the locking and limiting effect and the seat to move arbitrarily.

[0005] To achieve the above object, the utility model provides the following technical solution: an aircraft seat leg connection mechanism, comprising a seat leg rod and a seat slide rail arranged below the seat leg rod, wherein a connection structure is arranged on the left side of the seat leg rod;

[0006] The connecting structure includes a first connecting piece clamped with the left side of the chair leg rod, a second connecting piece is arranged on the left side of the first connecting piece, a groove plate is clamped at the bottom of the second connecting piece, a sliding seat is fixedly connected to the outside of the groove plate, a bearing seat is fixedly installed on the top of the sliding seat, a pressure rod is rotatably connected to the inner side of the bearing seat, a positioning pin rod is threadedly connected to the inner side of the bearing seat, and a locking piece is arranged inside the sliding seat.

[0007] Furthermore, a clamping plate structure is provided on the left side of the chair leg rod, and a No. 1 screw hole is provided on the top of the clamping plate and the first connecting member, and the two No. 1 screw holes are connected by a No. 1 fixing bolt rod, and a No. 2 screw hole is provided on the right side of the chair leg rod and the first connecting member, and the two No. 2 screw holes are connected by a No. 2 fixing bolt rod, and the number of the second connecting members is two, which are respectively located on the left front side and the left back side of the first connecting member.

[0008] Furthermore, a No. 1 positioning hole is provided inside the two second connecting members and on the left side of the first connecting member, and the three No. 1 positioning holes are connected by a positioning bolt rod. The right sides of the two second connecting members are threadedly connected to the left side of the slot plate by a number of screws. A No. 3 screw hole is provided through the bottom of the second connecting member and the inner bottom wall of the slot plate, and the two No. 3 screw holes are connected by a No. 3 fixing bolt rod.

[0009] Furthermore, groove structures are provided on the front and rear sides of the first connecting member, and the inner bottom walls of the two grooves are provided with card slots. The left sides of the two card slots are through structures. The groove plate is a concave structure, and two card strips are fixedly connected to the inner side of the groove plate. The two card strips are respectively adapted to be card-engaged with the inner parts of the two card slots.

[0010] Furthermore, the slide seat is a quadrangular platform structure, and a rail groove adapted to the slide seat is provided on the inner side of the seat slide rail. A rotating rod is rotatably connected to the left side of the inner part of the bearing seat, and the left end of the pressure rod is fixedly connected to the outside of the rotating rod. No. 2 positioning holes are provided on the inner front wall and the inner rear wall of the bearing seat, and the positioning pin rod is connected to the internal thread of the pressure rod through the two No. 2 positioning holes, and a protrusion is fixedly connected to the right side of the bottom of the pressure rod.

[0011] Furthermore, a hollow groove structure is provided inside the sliding seat, a groove hole adapted to the protrusion is provided on the top of the hollow groove, the locking member includes a spring rod group fixed inside the hollow groove, the spring rod group includes four vertical rod structures, the bottom outer sides of the four vertical rods are all sleeved with No. 1 buffer springs, and the outsides of the four vertical rods are slidably connected with a pressure block of a four-sided pyramid structure.

[0012] Furthermore, the bottom of the pressure block is fixedly connected to the tops of four No. 1 buffer springs, the inner front wall and the inner rear wall of the empty slot are provided with reset circular holes, the interiors of the two reset circular holes are slidably connected with limit rods, the ends of the two limit rods located inside the empty slot are respectively fitted with the left and right sides of the pressure block, the two reset circular holes are fixedly connected to one side of the empty slot with No. 2 buffer springs, the two No. 2 buffer springs are respectively fixed with the outer sleeves of the two limit rods at the ends away from the reset circular holes, and the inner front wall and the inner rear wall of the seat slide rail are provided with a number of limit holes that are adapted to the two limit rods.

[0013] Beneficial Effects

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The aircraft seat leg connection mechanism clamps a slot plate fixed with a sliding seat with the front and rear sides of a first connection piece, and fixes the slot plate to the first connection piece by using a second connection piece and a plurality of fixing bolt rod structures. The slot plate can slide in a seat slide rail on the ground through the sliding seat, and a movable pressure rod is arranged on the top of the sliding seat. When the pressure rod is pressed down to the inside of the sliding seat, it will move downward by squeezing a pressure block, and the outer side of the pressure block forces the limit rod to extend to the limit hole on the inner wall of the seat slide rail, so as to limit and lock the sliding seat and the seat slide rail, and then use a positioning pin rod to horizontally insert the bearing seat and the pressure rod, and fix the pressure rod to the inner side of the bearing seat, so as to facilitate the position locking of the seat structure and the leg rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall schematic diagram of the chair leg rod connection structure of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the middle plate without groove;

[0018] Figure 3 for Figure 1 Schematic diagram of the decomposition of each structure in the perspective;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the first connecting member in the viewing angle;

[0020] Figure 5 for Figure 3 A side view of the second connecting member structure in perspective;

[0021] Figure 6 for Figure 3 Schematic diagram of the seat slide structure in perspective;

[0022] Figure 7 for Figure 3 Schematic diagram of the slot plate structure in the viewing angle;

[0023] Figure 8 for Figure 7 Schematic diagram of the sliding table structure in the viewing angle;

[0024] Fig. 9 for Figure 8 Schematic diagram of the lifting structure of the pressure rod in the viewing angle;

[0025] Fig.10 for Figure 7 Side sectional view of the slide structure from a different perspective.

[0026] In the figure: 1, chair leg rod; 2, seat slide rail; 3, connection structure; 301, first connecting member; 302, second connecting member; 303, slot plate; 304, slide seat; 305, bearing seat; 306, pressure rod; 307, positioning pin rod; 308, locking member; 3081, spring rod group; 3082, pressure block; 3083, limit rod. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-10 A seat leg connection mechanism for an aircraft seat comprises a leg rod 1 and a seat slide rail 2 arranged below the leg rod 1. An aircraft seat structure is fixedly connected above the leg rod 1. The leg rod 1 can adjust the sliding and position locking operations on the inner side of the seat slide rail 2 through a connecting component at the bottom. A connecting structure 3 is arranged on the left side of the leg rod 1.

[0029] The connecting structure 3 includes a first connecting member 301 which is clamped with the left side of the chair leg rod 1, a second connecting member 302 is arranged on the left side of the first connecting member 301, a groove plate 303 is clamped at the bottom of the second connecting member 302, the groove plate 303 is clamped at the front and rear sides of the second connecting member 302, a sliding seat 304 is fixedly connected to the outside of the groove plate 303, a bearing seat 305 is fixedly installed on the top of the sliding seat 304, a pressure rod 306 is rotatably connected to the inner side of the bearing seat 305, the pressure rod 306 rotates along the axis of the bearing seat 305, a positioning pin rod 307 is threadedly connected to the inner side of the bearing seat 305, the positioning pin rod 307 fixes the pressure rod 306 to the inner side of the bearing seat 305, and a locking member 308 is arranged inside the sliding seat 304.

[0030] When implementing, follow these steps:

[0031] 1) First, fix the second connecting member 302 to the left side of the chair leg rod 1 through the fixing bolt rod structure, and respectively connect the two slot plates 303 to the slots on the front and rear sides of the second connecting member 302;

[0032] 2) Then, the first connecting member 301 is arranged on the left side of the second connecting member 302, and the slot plate 303 is fixed to the second connecting member 302 by using a positioning bolt rod and a screw structure;

[0033] 3) Then, the groove plate 303 is slidably connected to the inner side of the seat slide rail 2 on the ground through the slide seat 304, and the upper seat and the chair leg rod 1 are adjusted to the appropriate position;

[0034] 4) Finally, the pressing rod 306 is pressed so that it pushes the pressing block 3082 downward through the protrusion, forcing the limiting rod 3083 to extend to the inside of the limiting hole on the inner wall of the seat slide rail 2, thereby locking the position of the slide seat 304 and the seat slide rail 2.

[0035] according to Figure 1 and Figure 3 As shown, the left side of the chair leg rod 1 is clamped with the right side of the first connecting member 301 through a clamping plate structure. At this time, a No. 1 fixing bolt rod is inserted through the clamping plate and the No. 1 screw hole set on the top of the first connecting member 301, and a No. 2 fixing bolt rod is inserted through the chair leg rod 1 and the No. 2 screw hole set on the right side of the first connecting member 301, thereby fixing the chair leg rod 1 to the first connecting member 301.

[0036] according to Figure 3 and Figure 4 as well as Figure 7 As shown, the card strip on the inner side of the slot plate 303 is slid left and right to be slidably engaged with the card slots in the grooves opened on the front and rear sides of the first connecting member 301. At this time, the No. 3 fixing bolt rod is inserted into the No. 3 screw hole opened at the bottom of the second connecting member 302 and the inner bottom wall of the slot plate 303 to fix the slot plate 303 on the bottom outer side of the first connecting member 301.

[0037] according to Figure 2 and Figure 3 As shown, the two second connecting members 302 are respectively arranged on the left front side and the left back side of the first connecting member 301, and the two second connecting members 302 are connected and fixed to the left side of the slot plate 303 by a number of screws. The slot plate 303 slides in the rail groove on the inner side of the seat slide rail 2 through the sliding seat 304 fixed on the front and rear sides, so as to facilitate the adjustment of the position of the chair leg rod 1 and the seat above.

[0038] according to Figure 8 and Fig. 9 as well as Fig.10As shown, the pressure rod 306 is pressed so that one side of the protrusion of the pressure rod 306 enters the empty groove structure on the inner side of the slide seat 304. At this time, the protrusion will push the pressure block 3082 to slide down along the vertical rod structure. The spring rod group 3081 is composed of four vertical rods and four No. 1 buffer springs. One ends of the four No. 1 buffer springs are respectively fixed to the outer sides of the bottoms of the four vertical rods, and the other ends of the four No. 1 buffer springs are all fixed to the bottom of the pressure block 3082. At this time, the No. 1 buffer spring undergoes elastic deformation and is in a contracted state.

[0039] according to Figure 8 and Fig. 9 as well as Fig.10 As shown, after the pressure block 3082 moves downward, the slope structure on the front and rear sides of the pressure block 3082 will push the two limit rods 3083 out of the reset circular hole, and engage with the limit holes opened on the inner front wall and the inner rear wall of the seat slide 2. The pressure block 3082 pushes the No. 2 buffer spring to a contracted state. At this time, the positioning pin rod 307 is inserted into the No. 2 positioning hole of the bearing seat 305 and the inside of the pressure rod 306, so as to lock and fix the slide seat 304 and the rail groove of the seat slide 2 to prevent the chair leg rod 1 from moving.

[0040] according to Figure 8 and Fig. 9 as well as Fig.10 As shown, when the limiting effect needs to be loosened, the positioning pin rod 307 can be removed, and the No. 1 buffer spring and the No. 2 buffer spring can be automatically restored and push the pressure block 3082 to rise. At this time, the limiting rod 3083 is driven by the No. 2 buffer spring to re-enter the sliding seat 304, thereby losing the limiting locking effect on the sliding seat 304 and the seat slide rail 2, and the chair leg rod 1 can be adjusted and moved.

[0041] In summary, the aircraft seat leg connection mechanism clamps the slot plate 303 fixed with the slide seat 304 with the front and rear sides of the first connecting member 301, and uses the second connecting member 302 and a plurality of fixing bolt rod structures to fix the slot plate 303 to the first connecting member 301. The slot plate 303 can slide in the seat slide rail 2 on the ground through the slide seat 304. A movable pressure rod 306 is arranged on the top of the slide seat 304. When the pressure rod 306 is pressed down to the inside of the slide seat 304, it will move downward by squeezing the pressure block 3082, and the outer side of the pressure block 3082 forces the limit rod 3083 to extend to the seat slide rail 2. In the limiting hole of the inner wall, the slide seat 304 and the seat slide rail 2 are limited and locked, and then the positioning pin rod 307 is used to horizontally insert the bearing seat 305 and the pressure rod 306, and the pressure rod 306 is fixed on the inner side of the bearing seat 305, so as to facilitate the position locking of the seat structure and the chair leg rod 1, and solve the problem that the axial direction of the tightening and rotating of the screw disk of the chair leg connection mechanism of the cargo aircraft seat in the above-mentioned background technology is consistent with the axial direction of the movement of the upper chair leg. When the seat is affected by the activities of the passengers, the tightness of the screw disk may change, resulting in the chair legs losing the locking and limiting effect and causing the seat to move arbitrarily.

[0042] 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.

[0043] 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. An aircraft seat leg connection mechanism, comprising a seat leg rod (1) and a seat slide rail (2) arranged below the seat leg rod (1), characterized in that: A connecting structure (3) is provided on the left side of the chair leg rod (1); The connection structure (3) comprises a first connection member (301) clamped with the left side of the chair leg rod (1); a second connection member (302) is arranged on the left side of the first connection member (301); a groove plate (303) is clamped at the bottom of the second connection member (302); a sliding seat (304) is fixedly connected to the outside of the groove plate (303); a bearing seat (305) is fixedly installed on the top of the sliding seat (304); a pressure rod (306) is rotatably connected to the inner side of the bearing seat (305); a positioning pin rod (307) is threadedly connected to the inner side of the bearing seat (305); and a locking member (308) is arranged inside the sliding seat (304).

2. The aircraft seat leg connection mechanism according to claim 1, characterized in that: A clamping plate structure is provided on the left side of the chair leg rod (1), and a No. 1 screw hole is provided on the top of the clamping plate and the first connecting member (301), and the two No. 1 screw holes are connected by a No. 1 fixing bolt rod. A No. 2 screw hole is provided on the right side of the chair leg rod (1) and the first connecting member (301), and the two No. 2 screw holes are connected by a No. 2 fixing bolt rod. The number of the second connecting members (302) is two, and they are respectively located on the left front side and the left back side of the first connecting member (301).

3. The aircraft seat leg connection mechanism according to claim 1, characterized in that: A No. 1 positioning hole is provided inside the two second connecting members (302) and on the left side of the first connecting member (301), and the three No. 1 positioning holes are connected by a positioning bolt rod. The right sides of the two second connecting members (302) are threadedly connected to the left side of the slot plate (303) by a number of screws. A No. 3 screw hole is provided through the bottom of the second connecting member (302) and the inner bottom wall of the slot plate (303), and the two No. 3 screw holes are connected by a No. 3 fixing bolt rod.

4. The aircraft seat leg connection mechanism according to claim 1, characterized in that: The first connecting member (301) is provided with groove structures on both the front and rear sides, the inner bottom walls of the two grooves are provided with card slots, the left sides of the two card slots are through structures, the groove plate (303) is a concave-shaped structure, and the inner side of the groove plate (303) is fixedly connected with two card strips, and the two card strips are respectively adapted to be card-engaged with the inside of the two card slots.

5. The aircraft seat leg connection mechanism according to claim 1, characterized in that: The slide seat (304) is a four-sided pyramid structure, and a rail groove adapted to the slide seat (304) is opened on the inner side of the seat slide rail (2). A rotating rod is rotatably connected to the inner left side of the bearing seat (305), and the left end of the pressure rod (306) is fixedly connected to the outside of the rotating rod. The inner front wall and the inner rear wall of the bearing seat (305) are both provided with No. 2 positioning holes. The positioning pin rod (307) is connected to the internal thread of the pressure rod (306) through the two No. 2 positioning holes, and a protrusion is fixedly connected to the bottom right side of the pressure rod (306).

6. The aircraft seat leg connection mechanism according to claim 5, characterized in that: The interior of the slide seat (304) is provided with a hollow groove structure, the top of the hollow groove is provided with a slot hole adapted to the protrusion, the locking member (308) comprises a spring rod group (3081) fixed inside the hollow groove, the spring rod group (3081) comprises four vertical rod structures, the bottom outer sides of the four vertical rods are sleeved with a No. 1 buffer spring, and the outsides of the four vertical rods are slidably connected with a pressure block (3082) with a four-sided pyramid structure.

7. The aircraft seat leg connection mechanism according to claim 6, characterized in that: The bottom of the pressure block (3082) is fixedly connected to the tops of four No. 1 buffer springs, the inner front wall and the inner rear wall of the empty slot are both provided with reset circular holes, the interiors of the two reset circular holes are slidably connected to limit rods (3083), the ends of the two limit rods (3083) located inside the empty slot are respectively fitted with the left and right sides of the pressure block (3082), the sides of the two reset circular holes located inside the empty slot are fixedly connected with No. 2 buffer springs, the ends of the two No. 2 buffer springs away from the reset circular holes are respectively sleeved and fixed to the outsides of the two limit rods (3083), and the inner front wall and the inner rear wall of the seat slide rail (2) are provided with a number of limit holes that are adapted to the two limit rods (3083).

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