Folding seat and transportation tool

Abstract

The invention discloses a folding seat and a transport tool. The folding seat comprises a backrest framework, first connecting rods, second connecting rods, a first connecting rod, a second connecting rod and a second connecting rod, wherein the two sides of the backrest framework are rotationally connected with first connecting rods; the two sides of the cushion framework are rotationally connected with second connecting rods correspondingly, and the two sides, facing the end of the backrest framework, of the cushion framework are rotationally connected with the two first connecting rods correspondingly; the seat bottom cross beam is arranged below the cushion framework and is rotationally connected with the second connecting rod; the number of the side protection plates is two, and the side protection plates are located on the two sides of the cushion framework; the side protection plates are rotationally connected with the bottom of the backrest framework; an arc-shaped sliding groove is formed in each side protection plate, and the connecting position of the first connecting rod on each side and the cushion framework is installed in the corresponding arc-shaped sliding groove in a sliding mode. The overall height of the automobile seat after the backrest is folded is reduced, stable folding and unfolding of the seat backrest are achieved, and meanwhile the occupied space is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of seat auxiliary equipment, and in particular to a folding seat and a transportation tool. Background Art

[0002] With the development of the automobile industry and the advancement of technology, the folding mechanism of automobile seats has become a key component in automobile design. In the existing technology, the folding mechanism of automobile seats is mainly used to realize the folding and unfolding of the seat back to improve the flexibility and utilization of the space in the car. In order to meet the comfort requirements, the existing car backrests have a large amount of padding at the waist, resulting in a thicker lower part of the car seat backrest. As a result, the overall height of the car seat is relatively high after the backrest is folded, which still occupies a large amount of space in the car and cannot fully optimize the interior layout. Summary of the Invention

[0003] The object of the present invention is to provide a folding seat and a means of transport, which can reduce the space occupied by the seat after folding and optimize the interior layout of the vehicle.

[0004] The embodiment of the present invention is achieved as follows: In a first aspect, the present application discloses a folding seat, comprising: A backrest frame, wherein both sides of the backrest frame are rotatably connected to a first connecting rod; A seat cushion frame, wherein two sides of the seat cushion frame are rotatably connected to the second connecting rod respectively, and two sides of the seat cushion frame facing the end of the backrest frame are rotatably connected to the two first connecting rods respectively; a seat bottom crossbeam, the seat bottom crossbeam being arranged below the seat cushion frame and being rotatably connected to the second connecting rod; There are two side guards, and they are located on both sides of the seat cushion frame respectively; the side guard on each side is rotatably connected to the bottom of the backrest frame; each side guard is provided with an arc-shaped slide extending along a preset arc trajectory, and the connection between the No. 1 connecting rod and the seat cushion frame on each side is slidably installed in the corresponding arc-shaped slide. In a possible embodiment, the seat also includes two sets of locking assemblies, which are respectively located on the inner sides of the corresponding side guard plates; the two sets of locking assemblies are used to lock the side guard plates and the backrest frame, and are unlocked when the backrest frame rotates relative to the seat cushion frame. In a possible embodiment, each set of the locking components includes: A chuck, the chuck being connected to the inner side wall of the corresponding backrest frame, and the side of the chuck being provided with a locking groove having an arc trajectory parallel to the arc-shaped sliding groove; A latch structure, one end of which is connected to the corresponding side guard plate, and the other end extends into the corresponding locking groove; the other end of the latch structure is drawn out from the corresponding locking groove when the backrest frame rotates relative to the seat cushion frame. In a possible embodiment, each of the latch structures includes: A release rod, one end of which is connected to the corresponding side guard plate; A locking pin, wherein the axis of the locking pin is parallel to the axis of the release rod; and one end of the locking pin can be extended into and out of the corresponding locking groove; A connecting plate is connected to the other end of the corresponding release rod and the locking pin. In a possible embodiment, the release rod and the locking pin are connected to one side of the corresponding connecting plate, and a No. 1 spring and a No. 2 spring are respectively provided on the other side of the connecting plate; The setting position of the No. 1 spring is opposite to the setting position of the corresponding locking pin, and the setting position of the No. 2 spring is opposite to the setting position of the corresponding release rod body; the ends of the No. 1 spring and the No. 2 spring away from the connecting plate are respectively in contact with the inner side surfaces of the side guard plates on the corresponding sides, and are compressed when the corresponding locking pin extends out of the corresponding locking groove. In a possible embodiment, a mounting groove is provided on the outer side surface of each side guard plate; the end of the release rod body away from the corresponding connecting plate extends from the corresponding mounting groove and extends a set length relative to the outer side surface of the side guard plate.

[0005] In a possible embodiment, a contact plate is slidably provided in each installation groove; when the corresponding locking pin extends from the corresponding locking groove, the end of each release rod away from the corresponding connecting plate abuts against the inner side surface of the corresponding contact plate.

[0006] In a possible embodiment, an inner shell is provided inside the inner side surface of each side guard plate; and the ends of the No. 1 spring and the No. 2 spring away from the connecting plate are respectively in contact with the inner shell on the corresponding side.

[0007] In a possible implementation manner, a slider is provided at the connection between the No. 1 connecting rod and the seat cushion frame on each side, and the slider is slidably installed in the corresponding arc-shaped sliding groove.

[0008] In a second aspect, the present application also provides a means of transportation, comprising the above-mentioned folding seat.

[0009] The beneficial effects of the embodiments of the present invention are: When the backrest frame rotates around the rotating connection point with the side guard plate, the No. 1 connecting rod hinged to the backrest frame pushes the backrest frame to move along the arc-shaped slide groove, and at the same time drives the seat cushion frame to sink along the arc-shaped slide groove near one end of the backrest frame to make room for the folding of the backrest frame, thereby reducing the overall height of the car seat after the backrest is folded, achieving smooth folding and unfolding of the seat back while reducing the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 A schematic diagram of the side structure provided by the present invention; Figure 2 A schematic diagram of the folded side structure provided by the present invention; Figure 3 A schematic diagram of the inner structure of the side guard plate provided by the present invention; Figure 4 This is an enlarged schematic diagram of the structure at point A provided by the present invention; Figure 5 This is a schematic structural diagram of the locking assembly provided by the present invention.

[0012] Icons: 1. Seat cushion frame; 2. Backrest frame; 3. Side guard plate; 301. Mounting slot; 4. Seat bottom crossbeam; 5. Connecting rod No. 1; 6. Connecting rod No. 2; 7. Arc-shaped slide; 8. Sliding block; 9. Locking assembly; 10. Locking slot; 11. Inner shell; 12. Release rod body; 13. Connecting plate; 14. Spring No. 2; 15. Contact plate; 901. Chuck; 902. Locking pin; 903. Spring No. 1. DETAILED DESCRIPTION

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0015] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0016] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0018] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] First embodiment like Figure 1-Figure 5As shown, the folding seat of the car seat provided in this embodiment includes a cushion frame 1, a backrest frame 2 and a side guard plate 3. The bottom end of the backrest frame 2 is rotatably connected to the side guard plate 3, and the bottom of the side guard plate 3 is connected to the seat bottom cross beam 4. The cushion frame 1 is rotatably connected to a No. 1 connecting rod 5 near one end of the backrest frame 2, and the other end of the No. 1 connecting rod 5 is hinged to the backrest frame 2. The cushion frame 1 is hinged with a No. 2 connecting rod 6, and the other end of the No. 2 connecting rod 6 is rotatably connected to the seat bottom cross beam 4. An arcuate slide groove 7 is provided on the surface of the side guard plate 3, and a sliding block 8 is provided at the connection point between the cushion frame 1 and the No. 1 connecting rod 5. The sliding block 8 is inserted into the arcuate slide groove 7. A locking assembly 9 is provided at the lower end of the backrest frame 2. The locking assembly 9 includes a chuck 901, a locking pin 902 and a No. 1 spring 903. The chuck 901 is fixedly connected to the lower end of the cushion frame 1, and the surface of the chuck 901 A locking groove 10 is provided, and a locking pin 902 is inserted into the locking groove 10. A No. 1 spring 903 is used to resist the locking pin 902. The locking groove 10 is arc-shaped, and the two sides of the locking groove 10 are evenly arranged with multiple arcs. The arcs fit the outer surface of the locking pin 902. When the locking pin 902 is inserted into the chuck 901, the backrest frame 2 is locked and cannot rotate. The locking pin 902 is pulled out of the chuck 901 and then the backrest frame 2 is pushed. The backrest frame 2 rotates around the rotation connection point with the side guard plate 3. The No. 1 connecting rod 5 hinged to the backrest frame 2 pushes the backrest frame 2 to move along the arc slide groove 7, and at the same time drives the seat cushion frame 1 to sink along the arc slide groove 7 near one end of the backrest frame 2 to make room for the folding of the backrest frame 2, thereby reducing the overall height of the car seat after the backrest is folded, realizing the smooth folding and unfolding of the seat back, while reducing the occupied space.

[0020] Among them, the inner shell 11 is fixedly installed on the inner side of the side guard plate 3, the locking pin 902 is inserted into the inner shell 11 and is slidably connected to the inner shell 11, the No. 1 spring 903 is located between the locking pin 902 and the inner shell 11, and a release button 12 is provided on the outer side of the side guard plate 3. The bottom of the release button 12 is fixedly connected to a connecting plate 13, the locking pin 902 passes through the connecting plate 13 and is slidably connected to the connecting plate 13, and a No. 2 spring 14 is provided between the connecting plate 13 and the inner shell 11. The No. 2 spring 14 is used to resist The contact plate 15 is connected to the outer side of the side guard plate 3 in a sliding manner. The contact plate 15 is used to limit the release button 12. When the backrest needs to be folded, the release button 12 is pressed, and the release button 12 drives the connecting plate 13 to move downward, and the connecting plate 13 drives the locking pin 902 to move downward. At this time, the seat back can be adjusted. When the seat back needs to be folded, after pressing the release button 12, the contact plate 15 is slid to make the contact plate 15 prevent the release button 12 from rebounding, thereby folding the seat back at a large angle.

[0021] like Figure 1-Figure 5As shown, the principle of the folding seat of the car seat provided in this embodiment is as follows: a rotational connection is adopted between the backrest frame 2 and the side guard plate 3. When the backrest frame 2 rotates, the No. 1 connecting rod 5 will push one end of the cushion frame 1 to displace along the arc-shaped slide groove 7, thereby causing the cushion frame 1 to sink along the arc-shaped slide groove 7 close to one end of the backrest frame 2, making room for the folding of the backrest frame 2, thereby reducing the overall height of the car seat after the backrest is folded. After pressing the release button 12, the release button 12 drives the connecting plate 13 and the locking pin 902 to move downward synchronously, so that the locking pin 902 is pulled out of the chuck 901. At this time, the seat back angle can be adjusted. After pressing the release button 12, the seat back can be folded at a large angle by sliding the contact plate 15 to prevent the release button 12 from rebounding.

[0022] Second embodiment This embodiment also provides a vehicle comprising the aforementioned folding seat. The vehicle is a device or tool used to achieve spatial displacement of people and objects. The vehicle in this application includes, but is not limited to, automobiles, airplanes, trucks, trains, and ships. By arranging the aforementioned folding seat in the vehicle, the overall height of the vehicle seat after folding can be reduced, enabling smooth folding and unfolding of the seat back, while also reducing occupied space and optimizing the interior space layout.

[0023] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A folding seat, characterized in that: include: A backrest frame, wherein both sides of the backrest frame are rotatably connected to a first connecting rod; A seat cushion frame, wherein two sides of the seat cushion frame are rotatably connected to the second connecting rod respectively, and two sides of the seat cushion frame facing the end of the backrest frame are rotatably connected to the two first connecting rods respectively; a seat bottom crossbeam, the seat bottom crossbeam being arranged below the seat cushion frame and being rotatably connected to the second connecting rod; There are two side guards, and they are located on both sides of the seat cushion frame respectively; the side guard on each side is rotatably connected to the bottom of the backrest frame; each side guard is provided with an arc-shaped slide extending along a preset arc trajectory, and the connection between the No. 1 connecting rod and the seat cushion frame on each side is slidably installed in the corresponding arc-shaped slide.

2. The folding seat according to claim 1, characterized in that: The seat also includes two sets of locking components, which are respectively located on the inner sides of the corresponding side guards; the two sets of locking components are used to lock the side guards and the backrest frame, and are unlocked when the backrest frame rotates relative to the seat cushion frame.

3. The folding seat according to claim 2, characterized in that: Each set of locking components includes: A chuck, the chuck being connected to the inner side wall of the corresponding backrest frame, and the side of the chuck being provided with a locking groove having an arc trajectory parallel to the arc-shaped sliding groove; A latch structure, one end of which is connected to the corresponding side guard plate, and the other end extends into the corresponding locking groove; the other end of the latch structure is drawn out from the corresponding locking groove when the backrest frame rotates relative to the seat cushion frame.

4. The folding seat according to claim 3, characterized in that: Each of the latch structures comprises: A release rod, one end of which is connected to the corresponding side guard plate; A locking pin, wherein the axis of the locking pin is parallel to the axis of the release rod; and one end of the locking pin can be extended into and out of the corresponding locking groove; A connecting plate is connected to the other end of the corresponding release rod and the locking pin.

5. The folding seat according to claim 4, characterized in that: The release rod and the locking pin are connected to one side of the corresponding connecting plate, and a No. 1 spring and a No. 2 spring are respectively provided on the other side of the connecting plate; The setting position of the No. 1 spring is opposite to the setting position of the corresponding locking pin, and the setting position of the No. 2 spring is opposite to the setting position of the corresponding release rod body; the ends of the No. 1 spring and the No. 2 spring away from the connecting plate are respectively in contact with the inner side surfaces of the side guard plates on the corresponding sides, and are compressed when the corresponding locking pin extends out of the corresponding locking groove.

6. The folding seat according to claim 5, characterized in that: An installation groove is provided on the outer side surface of each side guard plate; one end of the release rod body away from the corresponding connecting plate extends out from the corresponding installation groove and extends out a set length relative to the outer side surface of the side guard plate.

7. The folding seat according to claim 6, characterized in that: A contact plate is slidably provided in each installation groove; when the corresponding locking pin extends from the corresponding locking groove, one end of each release rod away from the corresponding connecting plate contacts the inner side surface of the corresponding contact plate.

8. The folding seat according to claim 5, characterized in that: An inner shell is provided inside the inner side surface of each side guard plate; one end of the No. 1 spring and the No. 2 spring away from the connecting plate are respectively in contact with the inner shell on the corresponding side.

9. The folding seat according to claim 1, characterized in that: A slider is provided at the connection between the No. 1 connecting rod and the seat cushion frame on each side, and the slider is slidably installed in the corresponding arc-shaped sliding groove.

10. A means of transport, characterized in that: Comprising the folding seat according to any one of claims 1 to 9.

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