CN210204039U

CN210204039U - Horizontal retractable seat

Info

Publication number: CN210204039U
Application number: CN201920869524.2U
Authority: CN
Inventors: Fei Wu; 吴非; Yue Wu; 吴玥; Chunqin Tang; 唐春勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-03-31
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a horizontal retractable seat, include: the foldable seat comprises a base, a seat support, a foldable backrest and a foldable seat cushion; the seat support comprises a left part and a right part, wherein one side is a fixed part, and the other side is a movable part; the bottom of the fixed part is fixedly arranged on the base, and the bottom of the movable part is connected with the base in a sliding manner through a plurality of sliding components; two sides of the foldable backrest and the foldable cushion are respectively connected with the fixed part and the movable part; the movable part is locked and unlocked through the locking and unlocking assembly. The seat is unfolded and contracted through mechanical design; in case of emergency, the seats are in a contraction state by simply stepping on the switch and moving the seats, so that a plurality of channels are quickly formed, the most favorable diversified paths are formed, and the most favorable conditions are created for personnel to arrive at the emergency escape door through different paths and evacuate personnel such as airplanes or theaters and the like and places with dense seats.

Description

Horizontal retractable seat

Technical Field

The utility model relates to a seat field, concretely relates to horizontal retractable seat.

Background

In various places with intensive personnel, such as meeting places, movie theaters, trains, passenger planes and the like, the seats often occupy a large amount of space, and on one hand, in order to ensure economic benefits, the space between the seats cannot be too large. Clearly, such personnel-intensive locations require the greatest possible reduction in safety hazards, and the need to ensure rapid evacuation of personnel in the event of a disaster. Meanwhile, the rapid positioning of the personnel can also bring about the improvement of efficiency and comprehensive benefits for the personnel-intensive places.

Passenger aircraft are not taken as an example. The number of seats in the non-economic cabin is small, the movement space is large, and the optimized lifting space is small. While in the economy class, increasing the seat pitch will reduce the number of seats. Generally speaking, the typical configuration of seats in the economy class (which usually occupies most of the seats) of passenger aircraft is window-adjacent seats (with the number of A), middle seats (with the number of B), aisle seats (with the number of C), and the principle is similar for other seats such as (ABC-JKL, AC-DEFH-JL, etc.), and the window-adjacent seat A can enjoy the beauty outside of the window by taking the seat configuration of ABC as an example only, but the action needs to cross the seats B and C, which is often inconvenient. The aisle seat C is convenient to move, but the beautiful scenery outside the window is difficult to appreciate. When people are in place or leave, people need to be in place in sequence or the seated people need to stand up to avoid, and therefore inconvenience is brought. In particular, taking a passenger plane as an example, when the passenger plane encounters a disaster and is forced to descend to the ground and needs to escape, in the case that any person does not take luggage, it takes a lot of time for the person in the aisle seat C alone to occupy the aisle and evacuate, and the persons in the seats B and C have to wait passively. This seating arrangement therefore greatly limits the speed of evacuation of persons, especially in the case of a fire in the front or rear of the passenger aircraft, in which case smoke has already developed.

The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a horizontal retractable seat to solve the technical problem who exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a horizontal retractable seat, include: the foldable seat comprises a base, a seat support, a foldable backrest and a foldable seat cushion; wherein the content of the first and second substances,

the seat support comprises a left part and a right part, wherein one side of the seat support is a fixed part, and the other side of the seat support is a movable part; the bottom of the fixed part is fixedly arranged on the base, and the bottom of the movable part is connected with the base in a sliding manner through a plurality of sliding components; two sides of the foldable backrest and the foldable seat cushion are respectively connected with the fixed part and the movable part;

the movable part is locked and unlocked through the locking and unlocking assembly.

As a further technical solution, the sliding assembly includes an upper slider and a lower slider; the upper sliding block and the lower sliding block are in butt joint through a connecting ring, and a rolling bearing is arranged outside the connecting ring; a sliding groove is arranged on the base in a matching way with the connecting ring; the upper sliding block and the lower sliding block are positioned at the upper side and the lower side of the base; the locking and opening assembly comprises a guide block, a guide hole is formed in the guide block, an operating rod penetrates through the guide hole, clamping blocks which correspond to the guide block one by one are arranged on the operating rod, a spring is arranged between each clamping block and the guide block, one end of the spring abuts against the guide block, and the other end of the spring abuts against the clamping blocks; clamping grooves are formed in the base and in the unfolding and folding positions of the seat in a matched mode; push-pull plates are arranged at the front end and the rear end of the operating rod.

As a further technical scheme, the lower surface of the upper sliding block and the upper surface of the lower sliding block are provided with a plurality of rows of grooves provided with rollers, the rollers on the upper sliding block are tangent to the upper surface of the base, and the rollers on the lower sliding block are tangent to the lower surface of the base.

As a further technical solution, the foldable backrest and the foldable seat cushion are made of a single piece of flexible flame retardant fabric, or are made of several pieces of folded flame retardant fabric.

As a further technical solution, the foldable backrest and the foldable seat cushion are of a block-type folding structure.

As a further technical scheme, after the upper sliding block and the lower sliding block are butted through the connecting ring, the upper sliding block and the lower sliding block are fixedly connected through a bolt hole in the middle of the upper sliding block and the lower sliding block.

As a further technical scheme, the base is a mounting bottom plate of the seat or a sliding rail arranged on the mounting bottom plate of the seat.

As a further technical scheme, the sliding assembly comprises a plurality of rollers arranged at the bottom of the movable part, an inner sleeve fixed on the movable part and an outer sleeve fixed on the fixed part, and the inner sleeve and the outer sleeve are connected in a sliding and sleeved mode;

the locking and opening assembly is fixedly connected to the outer sleeve through a sleeve, the locking and opening assembly comprises two guide rods, two guide blocks with guide holes are arranged on two sides of the sleeve, the two guide rods are respectively sleeved in the guide blocks on two sides of the sleeve in a penetrating manner, two ends of each guide rod are fixedly connected through an operation plate, a lock tongue is arranged in the middle of the inner side of one operation plate, the free end of the lock tongue penetrates through the sleeve and the outer sleeve, and a locking hole matched with the free end of the lock tongue is formed in the inner sleeve;

a limiting pipe is sleeved on the spring bolt, a through hole matched with the spring bolt is formed in one end of the limiting pipe, and the other end of the limiting pipe is fixedly connected with the side wall of the sleeve; the spring is sleeved on the spring bolt in the limiting pipe, one end of the spring is abutted against the end part of the inner side of the limiting pipe, and the other end of the spring is limited on the spring bolt by a limiting nut in threaded connection with the spring bolt.

As a further technical scheme, the length direction of the guide rod is perpendicular to the length direction of the outer sleeve, and the length direction of the guide rod is consistent with the length direction of the seat.

As a further technical solution, the length of the inner sleeve is not greater than the distance between the movable part and the fixed part.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the seat is unfolded and contracted through mechanical design; under non-emergency, for a large amount of personnel through diversified route take a seat fast, perhaps through trampling the switch simply and move the operation, make each seat be in the shrink state, form many passageways fast and leave and provide convenient, increased substantially efficiency. In an emergency, the seats are in a contraction state by simply stepping on the switch and moving the seats, a plurality of channels are quickly formed, the most favorable diversified paths are formed, and extremely favorable conditions are created for people to arrive at the emergency escape door and evacuate from dense places such as airplanes, meeting places, theaters and the like through different paths.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a transverse retractable seat provided in an embodiment of the present invention in a deployed state;

fig. 2 is a schematic structural view of a transverse retractable seat provided in an embodiment of the present invention in a retracted state;

fig. 3 is a schematic structural view of a sliding assembly and a locking and unlocking assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a multi-row seat provided in an embodiment of the present invention in a deployed state;

fig. 5 is a schematic structural view of a multi-row seat provided in an embodiment of the present invention in a retracted state;

fig. 6 is a schematic structural view of a single-row seat provided in an embodiment of the present invention in a retracted state;

fig. 7 is a rear view of the transverse retractable seat according to the second embodiment of the present invention in the unfolded state;

fig. 8 is a schematic structural view of a locking and unlocking assembly according to a second embodiment of the present invention;

fig. 9 is a cross-sectional view of a locking and unlocking assembly according to a second embodiment of the present invention;

fig. 10 is a front view of a single row transverse retractable seat provided in accordance with a second embodiment of the present invention in a deployed state;

fig. 11 is a front view of a single row of laterally retractable seats provided in the second embodiment of the present invention in a retracted state;

icon: 1-a base; 2-a foldable backrest; 3-a foldable cushion; 4-a stationary portion; 5-an active part; 6, an upper sliding block; 7-lower slide block; 8-a sliding groove; 9-a guide block; 10-an operating lever; 11-a fixture block; 12-a spring; 13-a card slot; 14-rolling bearings; 15-a roller; 16-a push-pull plate; 17-a roller; 18-inner sleeve; 19-outer sleeve; 20-a cannula; 21-a guide rod; 22-a pilot hole; 23-a guide block; 24-an operating panel; 25-a bolt; 26-a limit nut; 27-a locking hole; 28-a spring; 29-limiting tube.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Example one

As shown in fig. 1-6, the present embodiment provides a lateral retractable seat, comprising: a base 1, a seat support, a foldable backrest 2 and a foldable seat cushion 3; wherein the content of the first and second substances,

the seat support comprises a left part and a right part, wherein one side of the seat support is a fixed part 4, and the other side of the seat support is a movable part 5; the bottom of the fixed part 4 is fixedly arranged on the base 1, and the bottom of the movable part 5 is connected with the base 1 in a sliding manner through a plurality of sliding components; the two sides of the foldable backrest 2 and the foldable seat cushion 3 are respectively connected with a fixed part 4 and a movable part 5;

the sliding assembly comprises an upper sliding block 6 and a lower sliding block 7; the upper slider 6 and the lower slider 7 are butted through a connecting ring (not shown in the figure); a sliding groove 8 is arranged on the base 1 in a matching way;

the upper sliding block 6 and the lower sliding block 7 are positioned at the upper side and the lower side of the base 1;

the bottom of the movable part 5 is also connected with a plurality of locking and opening assemblies, each locking and opening assembly comprises a guide block 9, a guide hole is formed in each guide block 9, an operating rod 10 penetrates through each guide hole, clamping blocks 11 which correspond to the guide blocks 9 one by one are arranged on each operating rod 10, a spring 12 is arranged between each clamping block 11 and each guide block 9, one end of each spring 12 abuts against the corresponding guide block 9, and the other end of each spring 12 abuts against the corresponding clamping block 11; and clamping grooves 13 are formed in the base 1 and at the unfolding and folding positions of the seat by matching with the clamping blocks 11.

In this embodiment, as a further technical solution, the exterior of the connection ring is provided with a rolling bearing 14; the outer side wall of the rolling bearing 14 is tangent to the side surface of the sliding groove 8; the friction is reduced by rolling when the seat active portion 5 slides.

In this embodiment, as a further technical solution, the lower surface of the upper slider 6 and the upper surface of the lower slider 7 are both provided with a plurality of rows of grooves provided with rollers 15, the rollers on the upper slider 6 are tangential to the upper surface of the base 1, and the rollers on the lower slider 7 are tangential to the lower surface of the base 1; the friction is reduced by rolling when the seat active portion 5 slides.

Preferably, the lower surface of the upper slide block 6 and the upper surface of the lower slide block 7 are both provided with two rows of grooves provided with rollers 15; through the two rows of rollers of the upper sliding block, the two rows of rollers of the lower sliding block and the rolling bearing between the upper sliding block and the lower sliding block, the movable part of the seat can still move conveniently even if the body is inclined or even inverted, and the safety, the use durability and the folding and unfolding reliability are greatly improved.

In this embodiment, as a further technical solution, the foldable backrest 2 and the foldable seat cushion 3 are made of a single piece of flexible flame retardant fabric, or are made of several pieces of folded flame retardant fabric; the folded pieces of flame retardant fabric may be sewn together or may be connected together by some kind of connector, such as a connecting ring.

The flexible flame-retardant fabric can be made of aramid fibers and Kevlar fibers of DuPont, PROBAN, PYROVATEX CP and the like, or made of flame-retardant fibers or high-temperature-resistant flame-retardant fibers, and has permanent flame retardance; the high-performance flame-retardant fiber can be Kevlar, PBI, Nomex, Kerme, polysulfonamide, phenolic fiber, melamine fiber and the like.

In this embodiment, as a further technical solution, the foldable backrest 2 and the foldable seat cushion 3 are of a block-type folding structure.

The seat cushion of the seat in the application can be an integral flexible seat cushion, or can be formed by two or more seat cushion blocks through flexible connecting structures, and the seat cushion forms can be folded along with the movement of the movable part of the seat towards the fixed part and can also be unfolded along with the movement of the structure of the movable part 5 of the seat towards the fixed side structure. Because the high-speed impact of aircraft is many vertically, the utility model discloses in, personnel are in foldable seat, are flexible structure around, combine the protection of safety belt, have improved personnel's survival probability under high-speed impact state more greatly.

The backrest of the seat can be an integral flexible backrest, or can be formed by two or more backrest blocks through flexible connecting structures, and the backrest forms enable the backrest to be folded along with the movement of the structure of the movable part 5 of the seat towards the structure of the fixed side and also to be unfolded along with the movement of the structure of the movable part 5 of the seat towards the structure of the fixed side.

Like conventional seats for passenger aircraft, the backrest of the seat of the present application is of a unitary construction that is rotatable relative to the armrest portion to meet the needs of a person sitting and reclining.

In this embodiment, as a further technical solution, after the upper slider 6 and the lower slider 7 are butted by the connection ring, they are fixedly connected by the bolt hole in the middle of the upper and lower sliders.

In this embodiment, as a further technical solution, the base 1 is a mounting bottom plate of a seat or a slide rail arranged on the mounting bottom plate of the seat. The utility model discloses a seat structure because need provide the slip space for 5 structures of seat movable part, so need be provided with the sliding tray on the floor, has certain space below the sliding tray, supplies the lower slider to slide. In consideration of the implementation convenience and feasibility, the sliding groove is not formed in the existing floor, and the sliding function can be realized by installing the sliding guide rail structure on the floor, so that the influence on the existing airplane structure can be reduced to the maximum extent. The sliding grooves are formed in the floor or realized by utilizing a guide rail structure, and are collectively called as the sliding grooves. If the guide rail structure is used for realizing the sliding groove, the gap between the two rows of guide rails keeps the flatness of the upper surface of the guide rails by filling carpets and the like made of flame retardant materials, so that the channel A and the channel BC form a flat and smooth ground with sliding grooves, and people are prevented from being hindered by the guide rails and falling down when withdrawing. The width of the sliding groove can be optimally designed so as not to hinder normal actions of people.

In this embodiment, as a further technical solution, the bottoms of the fixed part 4 and the movable part 5 are respectively connected with the base 1 and the sliding assembly through a limiting nut with a reinforcing rib.

In this embodiment, as a further technical solution, the front and rear ends of the operating rod 10 are provided with push-pull plates 16.

When the seat needs to be set to a contracted state from an unfolded state, the movable part 5 of the seat needs to be unlocked and moved, a person sitting in a back row can push the push-pull plate 16 at the back end part of the operating rod forwards through feet (or a person sitting in a front row can hook the push-pull plate at the front end part of the operating rod in front of the feet), the spring can be compressed, the clamping block is separated from the clamping groove on the side surface of the sliding groove, at the moment, the movable part 5 of the seat can freely slide to a position needing seat contraction along the sliding groove, at the moment, the push-pull plate of the operating rod is loosened, the clamping block can be clamped in the corresponding sliding groove clamping groove when the seat is contracted, and at the.

When the seat needs to be set to be in the unfolding state from the contraction state, the seat moving part 5 needs to be unlocked and moved, a back-row seat person can prop against a push-pull plate at the back end part of the operating rod forwards through feet (or a front-row seat person can hook the push-pull plate at the front end part of the operating rod in front of the feet), the spring can be compressed, the clamping block is separated from a clamping groove on the side surface of the sliding groove, at the moment, the seat moving part 5 can freely slide to the position where the seat needs to be unfolded along the sliding groove, at the moment, the push-pull plate of the operating rod is loosened, the clamping block can be clamped in the corresponding clamping groove of the sliding groove when the seat is unfolded, and.

On the back of the conventional seat back of a passenger aircraft, there are often storage bags, as well as a display for leisure and a small table for dining and the like. The main plane (maximum plane) of the bag and the display is in the up-down and left-right directions. The utility model discloses in, the back of the seat is flexible collapsible structure, if the direction of putting thing bag and display is still in about direction, then with flexible collapsible production contradiction. The utility model discloses in, when the seat is in folding mode, the main plane direction of putting thing bag and display is through artifical or automatic mode adjustment for upper and lower fore-and-aft direction, and when the seat is in the expansion mode, the main plane direction automatic adjustment of putting thing bag and display is about the direction from top to bottom. Thus, the folding and unfolding requirements of the seat are met, and the leisure requirements of people in the drawing are also met. In particular, with the growing maturity of flexible screen technology and projection technology, the impact of the display in seat folding can be fully addressed. For example, if flexible screen technology is used, the screen may be laid on the back of the seat back and may be automatically stowed when not in use or when necessary. As another example, the display screen may extend downwardly from the top of the cabin above the front row of seats to a location where it is easily accessible to personnel. For another example, if projection technology is used, it is fully possible to use a miniature projection device mounted above the viewer himself or at a seat back or the like to project the viewing content onto a flexible surface on the seat back in front of the viewer. Therefore, the storage bag and the display screen on the backrest of the traditional seat of the passenger plane do not form barriers for the folding seat of the utility model.

The small table plate of the traditional seat back of the passenger plane can also be replaced by a tight flexible structure. Or may be manually or automatically oriented to provide compatibility with a folding seat.

The power supply and the circuitry and interfaces for the earphones may be mounted in the fixed side structure of the seat in the same manner as conventional seats for passenger aircraft.

The basic working process of the embodiment is as follows:

before boarding or entering a field: the seats are in a contracted state, transverse passages are formed among the seats A, the seats B and the seats C among the seats in the same row, longitudinal passages A are formed among the seats A, the windows and the bulkheads among the seats in different rows, longitudinal passages BC are formed among the seats B and the seats C, and longitudinal passages C are formed among the seats C and the aisles. Here, to avoid ambiguity, will be because the utility model discloses the new front and back passageway of opening is named longitudinal channel, and will still call as longitudinal channel with the front and back passageway in the traditional meaning, call as transverse channel with the horizontal intercommunication between the seat in the traditional meaning. The personnel can quickly find the position of the personnel through the paths formed by different longitudinal passages, longitudinal passages and transverse passages, and the seat can be unfolded and then can be seated by simply stepping on a switch and transversely moving the switch.

With the person seated, each seat has been opened. It is not assumed that the order in which the seats are opened is random. In this way, the original longitudinal aisle remains clear, but longitudinal channel a and longitudinal channel BC are progressively divided into a plurality of shorter longitudinal channel segments, with a corresponding reduction in the paths available for non-seated persons. At this point, the unseated person can still quickly form a path through the longitudinal and lateral aisles to locate and go to his or her seat. Obviously, the utility model discloses the condition that corresponds is, when more personnel do not take one's seat, the routing that can take one's seat is also more, and when less personnel do not take one's seat, the routing that can take one's seat is corresponding also still less. This is in accordance with practical requirements.

In a normal state, when the aircraft is stably landed, or when the meeting theater is scattered, the personnel are ready to leave the crowded place. At this point, the person can stand up and be ready to leave the seat, since the person has unbuckled the harness. At this time, the person can make the corresponding seat in the contracted state by simply stepping on the switch and moving the operation. At this time, a plurality of longitudinal channel segments are first formed. The more people are ready to leave, the longer the longitudinal channel segments are communicated until complete longitudinal channels a and BC are formed, cooperating with the longitudinal aisle C, in the process, diversified paths are formed, creating extremely favorable conditions for people to reach outlets such as hatches and leave the aircraft or the dense place of people through different paths. Since small pieces of luggage are generally carried around, it is believed that the handling of the luggage does not constitute a substantial impact.

In an abnormal situation, when the airplane is forced to descend or the meeting theater is emergently evacuated, the personnel already unfasten the safety belts and prepare the places where the personnel are densely evacuated in emergency under the mediation of the staff. At this time, under the guidance of the staff, the seats are quickly in the contraction state by simply stepping on the switch and moving the seat, so that the complete longitudinal channel A and the longitudinal channel BC are quickly formed, the most favorable diversified path is formed by matching the longitudinal passage C, and the most favorable conditions are created for the staff to arrive at the emergency escape opening through different paths and evacuate from the dense place of the staff. Since the emergency evacuation is carried out without carrying the baggage, the evacuation speed is faster than that in the normal landing.

Because of the opening of longitudinal channel a and longitudinal channel BC, it is expected that the utility model discloses the device will make the speed of evacuating the aircraft show the improvement, and the time probably reduces to within half of original required time.

Example two

Referring to fig. 7-10, the sliding components in this embodiment are a plurality of rollers 17 disposed at the bottom of the movable portion 5, an inner sleeve 18 fixed on the movable portion 5, and an outer sleeve 19 fixed on the fixed portion 4, wherein the inner sleeve 18 and the outer sleeve 19 are slidably sleeved;

the locking and opening assembly is fixedly sleeved on the outer sleeve 19 through a sleeve 20, the locking and opening assembly comprises two guide rods 21, two guide blocks 23 with guide holes 22 are arranged on two sides of the sleeve 20, the two guide rods 21 are respectively sleeved in the guide blocks 23 on the two sides of the sleeve in a penetrating manner, two ends of each guide rod 21 are fixedly connected through an operation plate 24, a lock tongue 25 is arranged in the middle of the inner side of one operation plate 24, the free end of the lock tongue 25 penetrates through the sleeve 20 and the outer sleeve 19, and a locking hole 27 matched with the free end of the lock tongue 25 is arranged on the inner sleeve 18;

a limiting pipe 29 is sleeved on the bolt 25, one end of the limiting pipe 29 is provided with a through hole matched with the bolt, and the other end of the limiting pipe is fixedly connected with the side wall of the sleeve 20; a spring 28 is sleeved on the bolt in the limit pipe 29, one end of the spring 28 is abutted against the inner side end part of the limit pipe 29, and the other end of the spring 28 is limited on the bolt 25 by a limit nut 26 in threaded connection with the bolt.

When the seat is in the unfolding state, the free end of the bolt 25 passes through the locking hole 27 at the unfolding position on the sleeve 20, the outer sleeve 19 and the inner sleeve 18, at the moment, the bolt 25 locks the outer sleeve 19 and the inner sleeve 18, and the seat is in the unfolding state; when the seat is contracted, the operating plate 24 at the rear side of the locking and opening assembly is pushed forwards, the free end of the bolt 25 is pulled out from the inner sleeve 18, the inner sleeve 18 is compressed towards the outer sleeve 19 until the seat is contracted, then the free end of the bolt 25 penetrates into the locking hole 27 at the contracted position on the inner sleeve 18 under the action of the spring 28, at the moment, the bolt 25 locks the outer sleeve 19 and the inner sleeve 18, and the seat is in a contracted state.

In this embodiment, as a further technical solution, the length direction of the guide rod 21 is perpendicular to the length direction of the outer sleeve 19, and the length direction of the guide rod 21 is consistent with the length direction of the seat.

In this embodiment, as a further technical solution, the length of the inner sleeve 18 is not greater than the distance between the movable part 5 and the fixed part 4. To ensure that the inner sleeve 18 is always inside the outer sleeve 19, avoiding potentially dangerous situations.

Preferably, the inner sleeve 18 and the outer sleeve 19 are both square tubes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A laterally retractable seat, comprising: the foldable seat comprises a base, a seat support, a foldable backrest and a foldable seat cushion; wherein the content of the first and second substances,

2. The lateral telescoping seat of claim 1, wherein the slide assembly comprises an upper slide and a lower slide; the upper sliding block and the lower sliding block are in butt joint through a connecting ring, and a rolling bearing is arranged outside the connecting ring; a sliding groove is arranged on the base in a matching way with the connecting ring; the upper sliding block and the lower sliding block are positioned at the upper side and the lower side of the base; the locking and opening assembly comprises a guide block, a guide hole is formed in the guide block, an operating rod penetrates through the guide hole, clamping blocks which correspond to the guide block one by one are arranged on the operating rod, a spring is arranged between each clamping block and the guide block, one end of the spring abuts against the guide block, and the other end of the spring abuts against the clamping blocks; clamping grooves are formed in the base and in the unfolding and folding positions of the seat in a matched mode; push-pull plates are arranged at the front end and the rear end of the operating rod.

3. The transverse retractable seat according to claim 2, wherein the lower surface of the upper slide block and the upper surface of the lower slide block are provided with a plurality of rows of grooves provided with rollers, the rollers on the upper slide block are tangent to the upper surface of the base, and the rollers on the lower slide block are tangent to the lower surface of the base.

4. The laterally retractable seat as claimed in claim 1 wherein said foldable back rest and said foldable seat cushion are made of a single piece of flexible flame resistant fabric or are constructed of several pieces of folded flame resistant fabric.

5. The laterally retractable seat as set forth in claim 1 wherein said foldable back and said foldable seat cushion are of a segmented folding configuration.

6. The transverse telescopic seat as claimed in claim 2, wherein the upper slider and the lower slider are connected by a connecting ring and then are fixedly connected by a bolt hole in the middle of the upper slider and the lower slider.

7. The laterally retractable seat according to claim 1, wherein said base is a mounting floor of the seat or a slide rail provided on the mounting floor of the seat.

8. The transverse telescopic seat according to claim 1, wherein the sliding assembly comprises a plurality of rollers arranged at the bottom of the movable part, an inner sleeve fixed on the movable part and an outer sleeve fixed on the fixed part, and the inner sleeve and the outer sleeve are connected in a sliding and sleeved mode;

9. The lateral retractable seat according to claim 8, wherein the length direction of the guiding rod is perpendicular to the length direction of the outer sleeve, and the length direction of the guiding rod is consistent with the length direction of the seat.

10. The laterally retractable seat according to claim 8, wherein the length of said inner sleeve is no greater than the distance between said movable portion and said fixed portion.