CN110123052B - Telescopic folding bed-chair dual-purpose device - Google Patents

Telescopic folding bed-chair dual-purpose device Download PDF

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Publication number
CN110123052B
CN110123052B CN201910373606.2A CN201910373606A CN110123052B CN 110123052 B CN110123052 B CN 110123052B CN 201910373606 A CN201910373606 A CN 201910373606A CN 110123052 B CN110123052 B CN 110123052B
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China
Prior art keywords
support
support frame
hinged
bed
storage box
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CN201910373606.2A
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Chinese (zh)
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CN110123052A (en
Inventor
王晓伟
史青录
智晋宁
陈东良
田乐乐
齐亚攀
彭丽娜
张聪
梁俊杰
杨磊
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Taiyuan University of Science and Technology
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Taiyuan University of Science and Technology
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C13/00—Convertible chairs, stools or benches
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
    • A47C19/021—Bedstead frames
    • A47C19/024—Legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/04—Extensible bedsteads, e.g. with adjustment of length, width, height
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Special Chairs (AREA)

Abstract

本发明一种可伸缩折叠式床椅两用装置，涉及一种可折叠收起也可展开的床椅两用装置；所要解决的技术问题为提供一种可伸缩折叠的、即可为床又可为椅的两用装置；采用的技术方案为：包括固定座椅和可伸缩装置；所述固定座椅包括水平设置的支撑收纳盒和固定于支撑收纳盒下方的四条固定支撑腿，可伸缩装置活动套装于支撑收纳盒内；所述可伸缩装置的结构为：支撑架为四边形框架结构，支撑架整体活动套装于支撑收纳盒内，支撑架拉出端的底部铰接有可折叠到水平位置的活动支撑腿，支撑架的拉出端还铰接有可折叠于支撑架框架内部的床靠板，支撑架的内部设置有可与支撑收纳盒上表面平齐的升降式支撑板；本发明用于实现床椅两用。

Figure 201910373606

The invention is a telescopic and foldable bed and chair dual-purpose device, and relates to a bed and chair dual-purpose device that can be folded, folded, and unfolded; It can be a dual-purpose device for a chair; the adopted technical scheme is: including a fixed seat and a retractable device; the fixed seat includes a horizontally arranged support storage box and four fixed support legs fixed under the support storage box, which can be retracted and retracted. The device is movably sheathed in the support and storage box; the structure of the retractable device is as follows: the support frame is a quadrilateral frame structure, the entire support frame is movably sheathed in the support and storage box, and the bottom of the pull-out end of the support frame is hinged with a foldable to a horizontal position. The support legs are movable, the pull-out end of the support frame is also hinged with a bed backboard that can be folded inside the frame of the support frame, and the inside of the support frame is provided with a lift-type support plate that can be flush with the upper surface of the support storage box; the present invention is used for Realize the dual use of bed and chair.

Figure 201910373606

Description

Telescopic folding bed-chair dual-purpose device
Technical Field
The invention discloses a telescopic folding bed-chair dual-purpose device, and relates to a bed-chair dual-purpose device which can be folded, folded and unfolded.
Background
Beds, chairs and the like are indispensable household tools in daily life of people, and are particularly widely applied to places such as families, outdoors, hospitals and the like. However, since the general bed-chair has the disadvantages of large space occupation ratio, inconvenient outdoor travel, inconvenient use in narrow space, etc., a functional device integrating the seat and the bed and capable of being lain in one body is urgently needed, and the device needs to meet the characteristics of economy, practicability, telescopic folding property, etc., namely, the device can meet the requirements of people on sitting and lying and small duty ratio and is economical and practical. However, none of the existing bed and chair devices can meet the above requirements.
Disclosure of Invention
The invention overcomes the defects of the prior art and aims to provide a telescopic and foldable dual-purpose device which can be used as a bed and a chair.
In order to solve the technical problems, the invention adopts the technical scheme that:
a telescopic folding bed-chair dual-purpose device comprises a fixed seat and a telescopic device;
the fixed seat comprises a horizontally arranged support storage box and four fixed support legs fixed below the support storage box, the side surface of the support storage box is provided with an opening, and the telescopic device is movably sleeved in the support storage box;
the telescopic device has the structure that: including support frame, movable supporting leg, bed backup plate and over-and-under type backup pad, the support frame is quadrilateral frame structure, be provided with the slide rail between its bottom and the support receiver, the whole activity suit of support frame is in supporting the receiver, the one end of support frame is the pull-out end, the other end limits in supporting the receiver, the bottom of support frame pull-out end articulates there is collapsible to horizontal position's movable supporting leg, the pull-out end of support frame still articulates there is collapsible bed backup plate in support frame inside, be provided with the stop gear who restricts bed backup plate inclination between bed backup plate and the support frame, the inside of support frame be provided with can with the over-and-under type backup pad that supports receiver upper surface parallel and level, the over-and-under type backup pad is supported by a plurality of springs of fixing on the support frame.
Three frames which can be pulled out by the supporting frame are respectively provided with a switch device for controlling the position of the lifting supporting plate;
the structure of the switch device is as follows: the button is fixed at one end of the connecting plate, the other end of the connecting plate is fixed with the pressure spring and the stop block, the pressure spring and the stop block are respectively positioned at two sides of the connecting plate, and the pressure spring and the button are positioned at the same side of the connecting plate;
the position that the edge of the lifting support plate is matched with the stop block is provided with a limiting groove, the stop block is pressed on the side surface of the lifting support plate by a pressure spring when the lifting support plate is bounced, and the stop block is positioned in the limiting groove on the lifting support plate when the lifting support plate is pressed down.
The limiting mechanism for limiting the inclination angle of the bed backup plate comprises a first connecting rod, a second connecting rod and a sliding block, one end of the first connecting rod is hinged to the bed backup plate, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to the sliding block, a groove capable of containing the first connecting rod and the second connecting rod is arranged on the upper end face of the supporting frame, elongated holes are formed in two side walls of the groove, and two ends of the sliding block are located in the two elongated holes respectively;
the two sets of limiting mechanisms are respectively positioned on two sides of the bed backup plate.
A control limiting mechanism is arranged between the movable supporting leg and the supporting frame, the control limiting mechanism comprises a third connecting rod, a fourth connecting rod, a control rod, a handle, a pressure rod, a first spring, a pressure block, a second spring and a slide rod, one end of the fourth connecting rod is hinged with the middle part of the movable supporting leg, the other end of the fourth connecting rod is hinged with one end of the third connecting rod, the other end of the third connecting rod is fixed on a rotating shaft, the rotating shaft is hinged on the supporting frame, the rotating shaft is also fixedly connected with one end of the control rod, the other end of the control rod is fixed with the slide rod and is hinged with the handle, the slide rod is provided with a blind hole, the pressure block is movably sleeved in the blind hole through the second spring, a slide groove with a section of which the central angle is 90 degrees is arranged at the position on the supporting frame corresponding to the rotating track of the slide rod, a T-shaped hole is arranged on the upper surface of the supporting frame and is communicated with the upper end of the slide groove, the T-shaped pressure rod is arranged in the T-shaped hole, and the first spring is arranged between the shaft shoulder and the hole shoulder, when the sliding rod rotates to the upper end of the sliding groove, the pressing block can enter the T-shaped hole under the action of the second spring.
The back of the bed backup plate is provided with a handle groove, and the handle is hinged in the handle groove.
Compared with the prior art, the invention has the following beneficial effects.
1. In the invention, when the telescopic device is retracted into the supporting storage box, the chair can be used for sitting on and occupies small space, and when the telescopic device is pulled out of the supporting storage box, the bed can be used for lying down for rest.
2. When the telescopic device is pulled out to be used as a bed, the lifting support plate can be bounced to be flush with the upper surface of the support storage box, the use comfort level is improved, the lifting support plate can be stably stopped at two positions of lifting and pressing under the control of the three switch devices, the function is stable, and in addition, the foldable and storable bed backup plate capable of being obliquely positioned is further provided, so that the bed backup plate is convenient to lean and lie.
3. The movable supporting legs are hinged on the supporting frame and provided with the control limiting mechanism, so that the movable supporting legs are convenient to fold and put down, and the locking mechanism has a locking function.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the folding telescopic device of the present invention.
Fig. 3 is a schematic structural view of the supporting and accommodating case of the present invention.
Fig. 4 is a schematic structural view of a limiting mechanism at a bed backup plate according to the present invention.
Fig. 5 is a partially enlarged view of B in fig. 4.
Fig. 6 is a schematic structural view of a switching device at a lifting support plate according to the present invention.
FIG. 7 is a schematic structural view of the movable support leg of the present invention.
Fig. 8 is a sectional view of the control limit mechanism of the present invention at the position of the support frame.
Fig. 9 is a schematic structural view of a slide rod in the control limit mechanism of the present invention.
Fig. 10 is a schematic view of the present invention in use.
In the figure: the utility model discloses a fixed seat, 11 is the support receiver, 12 is fixed supporting leg, 2 is telescoping device, 21 is the support frame, 22 is the movable supporting leg, 23 is the bed backup pad, 231 is the handle groove, 232 is the handle, 24 is the over-and-under type backup pad, 25 is stop gear, 251 is first connecting rod, 252 is the second connecting rod, 253 is the slider, 26 is switching device, 261 is the button, 262 is the connecting plate, 263 is the pressure spring, 264 is the dog, 27 is control stop gear, 271 is the third connecting rod, 272 is the fourth connecting rod, 273 is the control lever, 274 is the handle, 275 is the depression bar, 276 is the first spring, 277 is the briquetting, 278 is the second spring, 279 is the slide bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-9, the invention relates to a dual-purpose device of a retractable and foldable bed and chair, which comprises a fixed seat 1 and a retractable device 2; the fixed seat 1 comprises a horizontally arranged supporting and containing box 11 and four fixed supporting legs 12 fixed below the supporting and containing box 11, the supporting and containing box 11 is open on the side, and the telescopic device 2 is movably sleeved in the supporting and containing box 11;
the telescopic device 2 has the structure that: including support frame 21, movable support leg 22, bed backup plate 23 and over-and-under type backup pad 24, support frame 21 is quadrilateral frame structure, be provided with the slide rail between its bottom and the support receiver 11, the whole activity suit of support frame 21 is in supporting the receiver 11, the one end of support frame 21 is the pull-out end, the other end is restricted in supporting the receiver 11, the bottom that support frame 21 pulled-out end articulates there is collapsible to horizontal position's movable support leg 22, the pull-out end of support frame 21 still articulates there is collapsible bed backup plate 23 in support frame 21 frame inside, be provided with the stop gear 25 of restriction bed backup plate 23 inclination between bed backup plate 23 and the support frame 21, the inside of support frame 21 is provided with can with the over-and-under type backup pad 24 that supports 11 upper surface parallel and level of receiver, over-and-under type backup pad 24 is supported by a plurality of springs of fixing on support frame 21.
Three frames of the support frame 21 which can be pulled out are respectively provided with a switch device 26 for controlling the position of the lifting support plate 24;
the switching device 26 has the following structure: the pressing device comprises a button 261, a connecting plate 262, a pressure spring 263 and a stop 264, wherein the middle part of the connecting plate 262 is hinged on the support frame 21, the button 261 is fixed at one end of the connecting plate 262, the other end of the connecting plate 262 is fixed with the pressure spring 263 and the stop 264, the pressure spring 263 and the stop 264 are respectively positioned at two sides of the connecting plate 262, and the pressure spring 263 and the button 261 are positioned at the same side of the connecting plate 262;
the position of the edge of the lifting support plate 24, which is matched with the stop block 264, is provided with a limit groove, the stop block 264 is pressed on the side surface of the lifting support plate 24 by a pressure spring when the lifting support plate 24 is bounced, and the stop block 264 is positioned in the limit groove on the lifting support plate 24 when the lifting support plate 24 is pressed down.
The limiting mechanism 25 for limiting the inclination angle of the bed backup plate 23 comprises a first connecting rod 251, a second connecting rod 252 and a sliding block 253, one end of the first connecting rod 251 is hinged on the bed backup plate 23, the other end of the first connecting rod 251 is hinged with one end of the second connecting rod 252, the other end of the second connecting rod 252 is hinged on the sliding block 253, a groove capable of accommodating the first connecting rod 251 and the second connecting rod 252 is arranged on the upper end surface of the supporting frame 21, two side walls of the groove are respectively provided with a long hole, and two ends of the sliding block 253 are respectively positioned in the two long holes;
the two sets of limiting mechanisms 25 are respectively positioned on two sides of the bed backup plate 23.
A control limiting mechanism 27 is arranged between the movable supporting leg 22 and the supporting frame 21, the control limiting mechanism 27 comprises a third connecting rod 271, a fourth connecting rod 272, a control rod 273, a handle 274, a pressure rod 275, a first spring 276, a pressure block 277, a second spring 278 and a sliding rod 279, one end of the fourth connecting rod 272 is hinged with the middle part of the movable supporting leg 22, the other end of the fourth connecting rod 272 is hinged with one end of the third connecting rod 271, the other end of the third connecting rod 271 is fixed on a rotating shaft, the rotating shaft is hinged on the supporting frame 21, the rotating shaft is also fixedly connected with one end of the control rod 273, the other end of the control rod 273 is fixed with a sliding rod 279 and hinged with the handle 274, a blind hole is arranged on the sliding rod 279, the pressure block is movably sleeved in the blind hole through the second spring 278, a sliding groove with a central angle of 90 degrees is arranged at a position on the supporting frame 21 corresponding to the rotating track of the sliding rod 279, a T-shaped hole is arranged on the upper surface of the supporting frame 21 and is communicated with the upper end of the sliding groove, the T-shaped press rod 275 is positioned in the T-shaped hole, a first spring 276 is arranged between the shaft shoulder and the hole shoulder, and when the sliding rod 279 rotates to the upper end of the sliding chute, the press block 277 can enter the T-shaped hole under the action of the second spring 278.
The back of the bed backing plate 23 is provided with a handle groove 231, and the handle 232 is hinged in the handle groove 231.
The bed backup plate 23 is hinged with the support frame 21 and is provided with a limiting mechanism 25 for limiting the inclination angle of the bed backup plate 23, the limiting mechanism 25 comprises two connecting rods and a sliding block 253, the sliding block 253 can do linear reciprocating motion in the long hole, meanwhile, the first connecting rod 251 and the second connecting rod 252 correspondingly do folding and unfolding actions, the folding of the bed backup plate 23 is not influenced, but the maximum unfolding angle of the bed backup plate 23 is limited, and when the bed backup plate 23 is folded into the support frame 21, the first connecting rod 251 and the second connecting rod 252 are retracted into the groove on the support frame 21.
In the control limit mechanism 27 arranged between the movable support leg 22 and the support frame 21, the handle 274 is hinged with the control rod 273, namely the telescopic device 2 can be folded and stored, and the telescopic device 2 can not occupy the transverse space to be collected into the support storage box 1.
As shown in fig. 10, the method of use of the present invention is as follows.
When the bed function needs to be realized, the telescopic device 2 is pulled out, and the movable supporting leg 22 is rotated to a vertical position from a horizontal position through the operation control limiting mechanism 27, and the specific operation process is as follows: the handle 274 is used for rotating the control rod 273, so that the sliding rod 279 slides from the lower end to the upper end of the sliding chute, in the process, the third connecting rod 271 fixedly connected with the control rod 273 drives the fourth connecting rod 272 to act, the movable supporting leg 22 is driven to rotate by 90 degrees to reach a vertical position, and at the moment, the pressing block 277 pops into the T-shaped hole to realize locking. Then, the bed backup plate 23 is pulled up through the handle 232, the bed backup plate is rotated to the maximum angle and limited by the limiting mechanism 25, finally, the switch devices 26 in three directions are pressed down, the lifting support plate 24 is bounced to the position flush with the upper surface of the support storage box 11, the stop block 264 in the switch device 26 compresses the lifting support plate 24 in three directions under the action of the pressure spring 263, and at the moment, the bed function is realized.
When the seat function needs to be realized, three switch devices 26 are pressed down, the stop block 264 no longer compresses the lifting support plate 24, the lifting support plate 24 is manually pressed down, the switch devices 26 are loosened, the stop block 264 enters the limiting groove on the lifting support plate 24 under the action of the pressure spring 263 to block the lifting support plate 24, then the bed backup plate 23 is rotated and folded into the support frame 21, the control limiting mechanism 27 is operated again, the movable support leg 22 is enabled to rotate to the horizontal position from the vertical position, and the specific operation process is as follows: the pressing rod 275 is pressed down, the pressing block 277 is pressed into the sliding chute, the control rod 273 is rotated through the handle 274, the sliding rod 279 slides from the upper end to the lower end of the sliding chute, in the process, the third connecting rod 271 fixedly connected with the control rod 273 drives the fourth connecting rod 272 to act, so that the movable supporting leg 22 is driven to rotate by 90 degrees to reach the horizontal position, and at the moment, the pressing block 277 is in close contact with the sliding chute under the action of the second spring 278 in the sliding chute, and the pressing is achieved. So far, the retractable device 2 is folded, and finally the retractable device 2 is pushed into the storage supporting box 11, so that the seat function is realized.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (4)

1.一种可伸缩折叠式床椅两用装置，其特征在于：包括固定座椅(1)和可伸缩装置(2)；1. A retractable folding bed and chair dual-purpose device, characterized in that: comprising a fixed seat (1) and a retractable device (2); 所述固定座椅(1)包括水平设置的支撑收纳盒(11)和固定于支撑收纳盒(11)下方的四条固定支撑腿(12)，所述支撑收纳盒(11)侧面开口，可伸缩装置(2)活动套装于支撑收纳盒(11)内；The fixed seat (1) comprises a horizontally arranged support storage box (11) and four fixed support legs (12) fixed under the support storage box (11), and the support storage box (11) is open on the side and can be retracted and retracted. The device (2) is movably sheathed in the support storage box (11); 所述可伸缩装置(2)的结构为：包括支撑架(21)、活动支撑腿(22)、床靠板(23)和升降式支撑板(24)，所述支撑架(21)为四边形框架结构，其底部与支撑收纳盒(11)之间设置有滑轨，支撑架(21)整体活动套装于支撑收纳盒(11)内，支撑架(21)的一端为拉出端，另一端限制于支撑收纳盒(11)内，支撑架(21)拉出端的底部铰接有可折叠到水平位置的活动支撑腿(22)，支撑架(21)的拉出端还铰接有可折叠于支撑架(21)框架内部的床靠板(23)，床靠板(23)与支撑架(21)之间设置有限制床靠板(23)倾斜角度的限位机构(25)，支撑架(21)的内部设置有可与支撑收纳盒(11)上表面平齐的升降式支撑板(24)，升降式支撑板(24)由固定在支撑架(21)上的多个弹簧支撑；The structure of the retractable device (2) is as follows: comprising a support frame (21), movable support legs (22), a bed rest board (23) and a lift-type support board (24), and the support frame (21) is quadrilateral Frame structure, a slide rail is arranged between the bottom and the support storage box (11), the support frame (21) is integrally movably sleeved in the support storage box (11), one end of the support frame (21) is a pull-out end, and the other end Restricted in the support and storage box (11), the bottom of the pull-out end of the support frame (21) is hinged with a movable support leg (22) that can be folded to a horizontal position, and the pull-out end of the support frame (21) is also hinged with a foldable support leg (22). A bedboard (23) inside the frame of the frame (21), a limiting mechanism (25) for limiting the inclination angle of the bedboard (23) is arranged between the bedboard (23) and the support frame (21), and the support frame ( 21) is provided with a lift-type support plate (24) that can be flush with the upper surface of the supporting storage box (11), and the lift-type support plate (24) is supported by a plurality of springs fixed on the support frame (21); 所述活动支撑腿(22)与支撑架(21)之间设置有控制限位机构(27)，所述控制限位机构(27)包括第三连杆(271)、第四连杆(272)、控制杆(273)、手柄(274)、压杆(275)、第一弹簧(276)、压块(277)、第二弹簧(278)和滑杆(279)，第四连杆(272)的一端与活动支撑腿(22)的中部铰接，第四连杆(272)的另一端与第三连杆(271)的一端铰接，第三连杆(271)的另一端固定在转轴上，转轴铰接在支撑架(21)上，转轴还与控制杆(273)的一端固定连接，控制杆(273)的另一端固定有滑杆(279)并铰接有手柄(274)，滑杆(279)上设置有盲孔，压块通过第二弹簧(278)活动套装在所述盲孔内，支撑架(21)上与滑杆(279)转动轨迹相适应的位置开有一段圆心角为90°的滑槽，支撑架(21)的上表面上开有一个T型孔与所述滑槽的上端连通，T形压杆(275)位于所述T型孔内且其轴肩与孔肩之间设置有第一弹簧(276)，当滑杆(279)转动到滑槽的上端时，压块(277)可在第二弹簧(278)的作用下进入T型孔内。A control limit mechanism (27) is arranged between the movable support leg (22) and the support frame (21), and the control limit mechanism (27) includes a third link (271) and a fourth link (272). ), control rod (273), handle (274), pressure rod (275), first spring (276), pressure block (277), second spring (278) and sliding rod (279), the fourth link ( One end of 272) is hinged with the middle of the movable support leg (22), the other end of the fourth link (272) is hinged with one end of the third link (271), and the other end of the third link (271) is fixed on the rotating shaft The rotating shaft is hinged on the support frame (21), the rotating shaft is also fixedly connected with one end of the control rod (273), and the other end of the control rod (273) is fixed with a sliding rod (279) and is hinged with a handle (274). (279) is provided with a blind hole, the pressure block is movably fitted into the blind hole by the second spring (278), and a central angle is opened on the support frame (21) at a position that is adapted to the rotation track of the sliding rod (279). It is a 90° chute, a T-shaped hole is opened on the upper surface of the support frame (21) to communicate with the upper end of the chute, and the T-shaped pressing rod (275) is located in the T-shaped hole and its shaft shoulder is connected to the upper end of the chute. A first spring (276) is arranged between the hole shoulders. When the sliding rod (279) rotates to the upper end of the chute, the pressing block (277) can enter the T-shaped hole under the action of the second spring (278). 2.根据权利要求1所述的一种可伸缩折叠式床椅两用装置，其特征在于：所述支撑架(21)可拉出的三个边框上均设置有一个控制升降式支撑板(24)位置的开关装置(26)；2. A retractable and foldable bed and chair dual-purpose device according to claim 1, characterized in that: a control elevating support plate ( 24) position switch device (26); 所述开关装置(26)的结构为：包括按钮(261)、连接板(262)、压簧(263)和挡块(264)，连接板(262)的中部铰接在支撑架(21)上，按钮(261)固定在连接板(262)的一端，连接板(262)的另一端固定有压簧(263)和挡块(264)，所述压簧(263)和挡块(264)分别位于连接板(262)的两侧，且压簧(263)与按钮(261)位于连接板(262)的同侧；The switch device (26) is structured as follows: including a button (261), a connecting plate (262), a compression spring (263) and a stopper (264), and the middle of the connecting plate (262) is hinged on the support frame (21) , the button (261) is fixed on one end of the connecting plate (262), and the other end of the connecting plate (262) is fixed with a compression spring (263) and a stopper (264), the compression spring (263) and the stopper (264) are respectively located on both sides of the connecting plate (262), and the compression spring (263) and the button (261) are located on the same side of the connecting plate (262); 升降式支撑板(24)边缘与挡块(264)相适应的位置设置有限位凹槽，升降式支撑板(24)弹起时挡块(264)被压簧压紧在升降式支撑板(24)的侧面，升降式支撑板(24)压下时挡块(264)位于升降式支撑板(24)上的限位凹槽中。A limit groove is provided at a position where the edge of the lift-type support plate (24) is adapted to the stopper (264), and when the lift-type support plate (24) bounces up, the stopper (264) is pressed against the lift-type support plate ( 24), the stopper (264) is located in the limit groove on the lift support plate (24) when the lift support plate (24) is pressed down. 3.根据权利要求1或2所述的一种可伸缩折叠式床椅两用装置，其特征在于：所述限制床靠板(23)倾斜角度的限位机构(25)包括第一连杆(251)、第二连杆(252)和滑块(253)，第一连杆(251)的一端铰接在床靠板(23)上，另一端与第二连杆(252)的一端铰接，第二连杆(252)的另一端铰接在滑块(253)上，所述支撑架(21)的上端面上设置有可容纳第一连杆(251)和第二连杆(252)的凹槽，凹槽两侧壁上均设置有长形孔，滑块(253)的两端分别位于两个长形孔内；3. A retractable and foldable bed and chair dual-purpose device according to claim 1 or 2, wherein the limiting mechanism (25) for limiting the inclination angle of the bed backboard (23) comprises a first link (251), a second connecting rod (252) and a slider (253). One end of the first connecting rod (251) is hinged on the bed backboard (23), and the other end is hinged with one end of the second connecting rod (252). , the other end of the second link (252) is hinged on the slider (253), and the upper end surface of the support frame (21) is provided with a first link (251) and a second link (252) The groove, the two side walls of the groove are provided with elongated holes, and the two ends of the slider (253) are respectively located in the two elongated holes; 所述限位机构(25)为两套，分别位于床靠板(23)的两侧。There are two sets of the limiting mechanisms (25), which are respectively located on both sides of the bed backboard (23). 4.根据权利要求1或2所述的一种可伸缩折叠式床椅两用装置，其特征在于：所述床靠板(23)的背面设置有拉手槽(231)，拉手(232)铰接于拉手槽(231)内。4. A retractable folding bed and chair dual-purpose device according to claim 1 or 2, characterized in that: a handle groove (231) is provided on the back of the bed backboard (23), and the handle (232) is hinged in the handle groove (231).
CN201910373606.2A 2019-05-07 2019-05-07 Telescopic folding bed-chair dual-purpose device Expired - Fee Related CN110123052B (en)

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