CN203601066U

CN203601066U - Foldable seat

Info

Publication number: CN203601066U
Application number: CN201320681170.1U
Authority: CN
Inventors: 祝德宏; 沈治; 陆伟
Original assignee: ZHANGJIAGANG LONGJING AUTO PARTS CO Ltd
Current assignee: ZHANGJIAGANG LONGJING AUTO PARTS CO Ltd
Priority date: 2013-11-01
Filing date: 2013-11-01
Publication date: 2014-05-21
Anticipated expiration: 2023-11-01

Abstract

The utility model discloses a foldable seat. The foldable seat comprises a base support, a backrest framework and a cushion framework. A cylinder is arranged between the base support and the backrest framework, an annular cover plate is fixed to the top of the cylinder, a plurality of clamping grooves are evenly formed in the top of the annular cover plate in the circumferential direction of the annular cover plate, a movable shaft is vertically arranged in the cylinder, the movable shaft is movably arranged on the base support in a borne mode through an annular base plate arranged on a shaft body on the lower side in a sleeved mode, the backrest framework is connected with the movable shaft through a connecting shaft installed at the bottom of the backrest framework, the backrest framework can rotate around the movable shaft, limiting blocks which can be clamped with the clamping grooves in a matched mode are arranged on a shaft body of the connecting shaft, a lifting pedal plate is hinged to the base support, and the inner end of the lifting pedal plate is located under the movable shaft. When the outer end of the lifting pedal plate is pressed downwards in an abutting mode, the inner end of the lifting pedal plate can abut the movable shaft to move upwards together, and the connecting shaft is driven synchronously to move upwards to enable the limiting blocks on the shaft body of the connecting shaft to be disengaged from the clamping grooves. The foldable seat has the advantages of being safe to use and capable of rotating.

Description

A kind of folding seat

Technical field

The utility model relates to a kind of folding seat for special vehicles such as medical trucks.

Background technology

The structure of the current folding seat for special vehicles such as medical trucks is: comprise base support, be fixed with backrest frames on base support, backrest frames downside is hinged and is connected to cushion skeleton.The shortcoming of this folding seat is: this folding seat is in the time of idle state, people can only upwards turn down cushion skeleton, make cushion skeleton be close to backrest frames, but folding backrest frames can not be rotated to car madial wall together with cushion skeleton, greatly reduce the utilized space of the special vehicles such as medical truck.

Utility model content

The purpose of this utility model is to provide a kind of rotatable a kind of folding seat.

For achieving the above object, the utility model has adopted following technical scheme: described a kind of folding seat, comprise: base support, backrest frames and cushion skeleton, between base support and backrest frames, be provided with cylinder, cylinder top is fixed with annular cover plate, offer some draw-in grooves at annular cover plate top along its even circumferential, in cylinder, be vertically provided with the movable axis that can move up and down in cylinder, movable axis is by being sheathed on annular bottom plate freely-movable bearing on its downside axle body on base support, backrest frames is connected with movable axis by the adapter shaft that is installed on its bottom, and can rotate around movable axis, on the axle body of adapter shaft, be provided with the limiting stopper that can coordinate with the draw-in groove of annular cover plate clamping, on base support, be also hinged with lifting pedal, the inner of lifting pedal be positioned at movable axis under, when compressing the outer end of lifting pedal downwards, can make the inner of lifting pedal head on movable axis moves up together, the Timing Belt axle that is dynamically connected moves up together, limiting stopper on adapter shaft axle body and the draw-in groove of annular cover plate are separated.

Further, aforesaid a kind of folding seat, wherein: on the movable axis axle body between annular bottom plate and annular cover plate, be arranged with reseting pressuring spring, the upper/lower terminal of reseting pressuring spring is respectively against annular cover plate and annular bottom plate, and reseting pressuring spring makes movable axis have all the time the trend moving downward; When compressing the outer end of lifting pedal downwards, can make the inner of lifting pedal head on movable axis and move up together, when reseting pressuring spring is compressed, also make limiting stopper on adapter shaft axle body and the draw-in groove of annular cover plate be separated.

Further, aforesaid a kind of folding seat, wherein: on the base support in cylinder and around reseting pressuring spring, be provided with some guide upright posts.

By the enforcement of technique scheme, the beneficial effects of the utility model are: easy to operate, use safety, and folding backrest frames and cushion skeleton can be rotated to car madial wall, and then increase the utilized space in car.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of folding seat described in the utility model.

View when Fig. 2 is the folding seat rotation shown in Fig. 1.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As Fig. 1, shown in Fig. 2, described a kind of folding seat, comprise: base support 1, on base support 1, be fixed with backrest frames 2, backrest frames 2 downsides are hinged and are connected to cushion skeleton 3, between base support 1 and backrest frames 2, be provided with cylinder 4, cylinder 4 tops are fixed with annular cover plate 5, offer some draw-in grooves at annular cover plate 5 tops along its even circumferential, at the interior movable axis 6 that can move up and down in cylinder 4 that is vertically provided with of cylinder 4, movable axis 6 is by being sheathed on annular bottom plate 7 freely-movable bearings on its downside axle body on base support 1, backrest frames 2 is connected with movable axis 6 by the adapter shaft 8 that is installed on its bottom, and can rotate around movable axis 6, on the axle body of adapter shaft 8, be provided with the limiting stopper 9 that can coordinate with the draw-in groove of annular cover plate 5 clamping, lifting pedal 10 is hinged on base support 1 by jointed shaft 11, the inner of lifting pedal 10 be positioned at movable axis 6 under, when compressing the outer end of lifting pedal 10 downwards, can make the inner of lifting pedal 10 head on movable axis 6 moves up together, the Timing Belt axle 8 that is dynamically connected moves up together with backrest frames 2, limiting stopper 9 on adapter shaft 8 axle bodies is separated with the draw-in groove of annular cover plate 5, in the present embodiment, on movable axis 6 axle bodies between annular bottom plate 7 and annular cover plate 5, be arranged with reseting pressuring spring 12, reseting pressuring spring 12 upper, lower two ends are respectively against annular cover plate 5 and annular bottom plate 7, reseting pressuring spring 12 makes movable axis 6 have all the time the trend moving downward, when compressing the outer end of lifting pedal 10 downwards, can make the inner of lifting pedal 10 head on movable axis 6 moves up together, when reseting pressuring spring 12 is compressed, also make the limiting stopper 9 on adapter shaft 8 axle bodies be separated with the draw-in groove of annular cover plate 5, can make like this backrest frames 2 being firmly connected with base support 1 at reseting pressuring spring 12 under down spring effect, thereby make backrest frames 2 can not produce abnormal sound because rocking in vehicle traveling process, improve stable equipment operation, in the present embodiment, on base support 1 in cylinder 4 and around reseting pressuring spring 12, be provided with some guide upright posts 13, can make like this reseting pressuring spring 12 can bending phenomenon occurs in compression and reseting procedure, further improve operation stability and the safety in utilization of equipment.

Principle of work of the present utility model is as follows: seat is in the time using state, cushion skeleton 3 turn to the position of sitting for people downwards, at this moment the limiting stopper 9 on adapter shaft 8 axle bodies of backrest frames 2 bottoms be just in time clamped on annular cover plate 5 on draw-in groove in, backrest frames 2 is fixed on base support 1 under down spring effect tightly self gravitation and reseting pressuring spring 12, when seat is during in idle state, can apply a downward external force to the outer end of lifting pedal 10, the inner of lifting pedal 10 is upwards rotated around jointed shaft 11, along with the continuation of lifting pedal 10 the inners is upwards rotated, the inner of lifting pedal 10 can head on movable axis 6 and move up together, movable axis 6 Timing Belts axle 8 upward movement together with backrest frames 2 that is dynamically connected, until the limiting stopper 9 on adapter shaft 8 axle bodies is separated with the draw-in groove of annular cover plate 5, in the process of movable axis 6 upward movements, can constantly compress reseting pressuring spring 12, now backrest frames 2 is just in rotatable state, then backrest frames 2 is turned to car madial wall, now the limiting stopper 9 on adapter shaft 8 axle bodies just in time along with backrest frames 2 turn to another draw-in groove on annular cover plate 5 directly over, then remove again the downward external force that is applied to lifting pedal 10 outer ends, now backrest frames 2 can move downward under down spring effect at self gravitation and reseting pressuring spring 12, limiting stopper 9 on adapter shaft 8 axle bodies is clamped in corresponding draw-in groove, thereby backrest frames 2 and base support 1 are firmly linked together.The utility model has the advantages that: not only easy to operate, backrest frames and base support stable connection, equipment usage safety performance is high, and folding backrest frames and cushion skeleton can be rotated to car madial wall, has greatly increased the utilized space in car.

Claims

1. a folding seat, comprise: base support, backrest frames and cushion skeleton, it is characterized in that: between base support and backrest frames, be provided with cylinder, cylinder top is fixed with annular cover plate, offer some draw-in grooves at annular cover plate top along its even circumferential, in cylinder, be vertically provided with the movable axis that can move up and down in cylinder, movable axis is by being sheathed on annular bottom plate freely-movable bearing on its downside axle body on base support, backrest frames is connected with movable axis by the adapter shaft that is installed on its bottom, and can rotate around movable axis, on the axle body of adapter shaft, be provided with the limiting stopper that can coordinate with the draw-in groove of annular cover plate clamping, on base support, be also hinged with lifting pedal, the inner of lifting pedal be positioned at movable axis under, when compressing the outer end of lifting pedal downwards, can make the inner of lifting pedal head on movable axis moves up together, the Timing Belt axle that is dynamically connected moves up together, limiting stopper on adapter shaft axle body and the draw-in groove of annular cover plate are separated.

2. a kind of folding seat according to claim 1, it is characterized in that: on the movable axis axle body between annular bottom plate and annular cover plate, be arranged with reseting pressuring spring, the upper/lower terminal of reseting pressuring spring is respectively against annular cover plate and annular bottom plate, and reseting pressuring spring makes movable axis have all the time the trend moving downward; When compressing the outer end of lifting pedal downwards, can make the inner of lifting pedal head on movable axis and move up together, when reseting pressuring spring is compressed, also make limiting stopper on adapter shaft axle body and the draw-in groove of annular cover plate be separated.

3. a kind of folding seat according to claim 2, is characterized in that: on the base support in cylinder and around reseting pressuring spring, be provided with some guide upright posts.