CN108741847B - Public chair convenient to use and capable of automatically switching chair surfaces - Google Patents
Public chair convenient to use and capable of automatically switching chair surfaces Download PDFInfo
- Publication number
- CN108741847B CN108741847B CN201810680487.0A CN201810680487A CN108741847B CN 108741847 B CN108741847 B CN 108741847B CN 201810680487 A CN201810680487 A CN 201810680487A CN 108741847 B CN108741847 B CN 108741847B
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- chair
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- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 230000009471 action Effects 0.000 description 17
- 208000035143 Bacterial infection Diseases 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 208000022362 bacterial infectious disease Diseases 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 208000016583 Anus disease Diseases 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 208000012931 Urologic disease Diseases 0.000 description 1
- 210000000436 anus Anatomy 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 208000014001 urinary system disease Diseases 0.000 description 1
Classifications
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/024—Seat parts with double seats
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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
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/28—Folding chairs with flexible coverings for the seat or back elements
-
- 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
-
- 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
- A47C7/02—Seat parts
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C9/00—Stools for specified purposes
Landscapes
- Chairs Characterized By Structure (AREA)
- Special Chairs (AREA)
Abstract
The invention provides a public seat capable of conveniently and automatically switching seat surfaces, which comprises a seat frame, swing arm rotating mechanisms arranged on two sides of the seat frame, rotating shafts arranged at the tail ends of the swing arm rotating mechanisms, automatic overturning mechanisms arranged on one sides of the swing arm rotating mechanisms, seat surfaces arranged on the rotating shafts, return devices arranged between the swing arm rotating mechanisms and the seat frame, limiting devices arranged between the rotating shafts and the swing arm rotating mechanisms and limiting blocks arranged on the seat frame, wherein the seat surfaces are fixedly connected with the rotating shafts, the rotating shafts are rotatably connected with the swing arm rotating mechanisms, the automatic overturning mechanisms are fixedly connected with the rotating shafts, one ends of the return devices are fixedly connected with the seat frame, the other ends of the return devices are fixedly connected with the swing arm rotating mechanisms, the swing arm rotating mechanisms drive the rotating shafts and the seat surfaces to rotate, the limiting devices limit forward rotation of the seat surfaces, and the limiting blocks are fixedly arranged on the seat frame and limit the swing arm rotating mechanisms to rotate downwards.
Description
Technical Field
The invention relates to a general seat, which is mainly used for seats, chairs arranged in public places or office places; belongs to the technical field of seats, in particular to a public seat with a convenient and automatic seat surface switching function.
Background
The public place is generally provided with a seat, so that people can rest or transact conveniently. The number of public seats in public places such as hospitals, banks, government offices, restaurant and the like is limited, the use rate is extremely high, and users change frequently, and if the user just stands up, the user sits down in the next standing horse, so that the user has a 'heat sensation'; most of the existing general chairs are fixed single chair surfaces, the chair surfaces can be kept in environments suitable for bacteria growth and with humidity after long-term use, and bacteria breeding capacity is high. If one of the users has anus or urologic diseases, other persons may be infected after using the existing general chair.
Although some public seats with switchable seat surfaces also appear in the market, most of the public seats are manually switched, the use is quite inconvenient, the design of the existing seat with the automatically switchable seat surfaces is not reasonable, the rotating shaft for rotating the seat surfaces is fixedly arranged on the seat frame, the volume of the seat frame is intangibly increased, if a plurality of rows of seats are arranged, the pedestrians can pass through conveniently only by needing a larger distance between the front row and the rear row under the condition that the seats are not used, or the users can sit down conveniently only by needing a larger distance between the seats and office tables, and the popularization and the use are greatly limited.
In view of this, the present inventors have devised a public chair with a convenient and automatic seat switching.
Disclosure of Invention
In order to solve the problems, the technical scheme of the invention is as follows:
the utility model provides a convenient and public seat that can switch seat automatically, includes the seat frame, sets up in the swing arm rotary mechanism of seat frame both sides, sets up in the terminal pivot of swing arm rotary mechanism, sets up in the automatic tilting mechanism of swing arm rotary mechanism one side, sets up in epaxial seat, sets up return means between swing arm rotary mechanism and seat frame, sets up the stop device between pivot and swing arm rotary mechanism and sets up the stopper on the seat frame, wherein seat and pivot fixed connection, pivot and swing arm rotary mechanism swivelling joint, automatic tilting mechanism and pivot fixed connection, return means one end and seat frame fixed connection, the other end and swing arm rotary mechanism fixed connection, swing arm rotary mechanism drives pivot and seat rotation, stop device restricts the forward rotation of seat, the stopper is fixed to be set up on the seat frame, restricts swing arm rotary mechanism and rotates downwards;
the automatic turnover mechanism comprises a driving wheel, a driven wheel, a pawl and a conveying belt, wherein the driving wheel is rotationally connected with the swing arm rotating mechanism, ratchets are arranged in the driving wheel, the pawl is fixedly arranged on one side of the swing arm rotating mechanism and matched with the ratchets to drive the driving wheel to rotate unidirectionally, the conveying belt is sleeved with the driving wheel and the driven wheel, the driven wheel is fixedly connected with a rotating shaft, the pawl drives the driving wheel to rotate unidirectionally, and the conveying belt drives the driven wheel to rotate unidirectionally so as to drive the chair surface to turn.
Further, swing arm rotary mechanism is including setting up in the first rotary mechanism and the second rotary mechanism of chair frame both sides, first rotary mechanism is including fixed first fixed axle and the first connecting rod that sets up in chair frame one side, second rotary mechanism is including fixed second fixed axle and the second connecting rod that sets up in chair frame opposite side, first connecting rod one end and second connecting rod one end respectively with pivot both ends swivelling joint, first connecting rod other end and first fixed axle swivelling joint, the second connecting rod other end and second fixed axle swivelling joint.
Further, stop device includes fixed block, spacer pin, spring and sloping block, the fixed cover of fixed block is located in the pivot, set up the through-hole on the fixed block, the spacer pin is echelonment, including diameter taper's first shaft portion and second shaft portion, second shaft portion and through-hole cooperation, and can slide in the through-hole, set up the spring between first shaft portion and the fixed block, the sloping block sets up in first connecting rod inboard, the sloping block is wedge form, the sloping block upwards reduces from connecting rod bottom thickness gradually, the sloping block corresponds the setting with the stopper.
Further, return means includes two extension springs, two extension springs parallel arrangement, wherein one extension spring one end is connected with a vertical side pipe, and the other end is connected with first connecting rod, another extension spring one end is connected with another vertical side pipe, and the other end is connected with the second connecting rod.
Further, the chair surface comprises a first chair plate, connecting seats and a second chair plate, wherein the two connecting seats are arranged, the two connecting seats are arranged side by side and fixedly sleeved on the rotating shaft, and the first chair plate and the second chair plate are respectively arranged at two ends of the two connecting seats.
Further, the chair frame comprises chair angles and connecting shafts connected with the chair angles, and the two chair angles and the two connecting shafts are respectively arranged.
Further, the chair angle comprises two square pipes which are perpendicular to each other, namely a horizontal square pipe and a vertical square pipe, one of the square pipes is connected with the two ends of the connecting shaft, and the other square pipe is connected with the two ends of the connecting shaft.
Further, the limiting blocks are two, are fixedly arranged on the two vertical square tubes respectively, and limit the swing arm rotating mechanism to form an included angle of 90 degrees with the vertical square tubes.
Further, the bottoms of the two chair angles are both provided with anti-skid pads.
The public seat is provided with the swing arm rotating mechanism, when the public seat is not used, the public seat is in an upward inclined position under the action of the return device, the whole volume of the public seat can be greatly saved, under the condition that the seat is not used, the interval between the front row and the rear row is not required to be larger, the public seat is convenient for a user to sit down, the using space of the public seat is greatly saved, meanwhile, the automatic overturning mechanism is also arranged, when the public seat is sitting down, under the action of the limiting device, the seat surface can be prevented from rotating forwards, and meanwhile, under the action of the limiting block, the swing arm rotating mechanism is prevented from rotating downwards, so that a user sits on the seat surface stably, under the action of the return device, the swing arm rotating mechanism rotates upwards, a pawl is matched with a ratchet, the ratchet wheel is driven to rotate unidirectionally, the driven wheel is driven to rotate unidirectionally under the action of the conveying belt, and then the driven wheel drives the rotating shaft to rotate backwardly, so that the automatic switching overturning is realized; after the chair surface is switched, the unused chair surface can be naturally cooled, so that the bacterial survival environment is reduced, and bacterial infection among different human bodies is reduced when the chair surface is switched next time. The public chair has the advantages of simple structure, low cost, convenient popularization, clear production process and quick market input.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
FIG. 1 is a schematic view of the construction of a public chair of the present invention;
FIG. 2 is a schematic view of the construction of the public chair of the present invention in use;
FIG. 3 is a front view of FIG. 2 of the present invention;
FIG. 4 is a schematic view of the pawl and capstan of the present invention;
FIG. 5 is a side view of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic view of the structure of the swash block of the present invention;
fig. 7 is a side view of fig. 6 in accordance with the present invention.
Description of the reference numerals:
10-chair frame, 11-chair angle, 111-horizontal square tube, 112-vertical square tube, 12-connecting shaft, 20-swing arm rotating mechanism, 21-first rotating mechanism, 211-first fixed shaft, 212-first connecting rod, 22-second rotating mechanism, 221-second fixed shaft, 222-second connecting rod, 30-rotating shaft, 40-automatic turning mechanism, 41-driving wheel, 411-ratchet, 42-conveyor belt, 43-driven wheel, 44-pawl, 50-chair surface, 51-first chair plate, 52-connecting seat, 53-second chair plate, 60-return device, 61-tension spring, 70-limit device, 71-fixed block, 72-limit pin, 73-spring and 74-oblique block.
Detailed Description
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the present invention will be understood in detail by those skilled in the art.
Referring to fig. 1 to 7, as a public chair capable of automatically switching a seat 50 according to a preferred embodiment of the present invention, the public chair comprises a chair frame 10, a swing arm rotating mechanism 20 disposed at two sides of the chair frame 10, a rotating shaft 30 disposed at the end of the swing arm rotating mechanism 20, an automatic turning mechanism 40 disposed at one side of the swing arm rotating mechanism 20, a seat 50 disposed on the rotating shaft 30, a return device 60 disposed between the swing arm rotating mechanism 20 and the chair frame 10, a limiting device 70 disposed between the rotating shaft 30 and the swing arm rotating mechanism 20, and a limiting block (not shown) disposed on the chair frame 10, wherein the seat 50 is fixedly connected with the rotating shaft 30, the rotating shaft 30 is rotatably connected with the swing arm rotating mechanism 20, the automatic turning mechanism 40 is fixedly connected with the rotating shaft 30, one end of the return device 60 is fixedly connected with the chair frame 10, the other end of the swing arm rotating mechanism 20 drives the rotating shaft 30 and the seat 50 to rotate forward, the limiting device 70 limits the forward rotation of the seat 50, and the limiting block is fixedly disposed on the chair frame 10 to limit the downward rotation of the swing arm rotating mechanism 20. When a user sits down, the swing arm rotating mechanism 20 rotates downwards while the user dials down the seat 50, the swing arm rotating mechanism 20 is prevented from continuing to rotate downwards under the action of the limiting block, then the user rotates the seat 50 downwards and forwards, and the seat 50 and the horizontal plane tend to be parallel under the action of the limiting device 70, so that the user sits on the seat 50 stably.
The automatic turning mechanism 40 comprises a driving wheel 41, a driven wheel 43, a pawl 44 and a conveyor belt 42, wherein the driving wheel 41 is rotationally connected with the swing arm rotating mechanism 20, and a ratchet 411 is arranged in the automatic turning mechanism, preferably, the driving wheel 41 is rotationally connected with the first fixed shaft 211, the pawl 44 is fixedly arranged on one side of the swing arm rotating mechanism 20, in the invention, the pawl 44 is arranged on the side surface of the first connecting rod 212 and is matched with the ratchet 411, so that the driving wheel 41 is driven to rotate unidirectionally, the conveyor belt 42 is sleeved with the driving wheel 41 and the driven wheel 43, the driven wheel 43 is fixedly connected with the rotating shaft 30, the pawl 44 drives the driving wheel 41 to rotate unidirectionally, and the conveyor belt 42 drives the driven wheel 43 to rotate unidirectionally, so as to drive the chair 50 to turn. When the swing arm rotation mechanism 20 rotates downward, the pawl 44 does not act, and the ratchet 411 does not work (the pawl 44 does not act on the ratchet 411); when the swing arm rotating mechanism 20 rotates upwards, the pawl 44 on the swing arm rotating mechanism 20 props against the tooth form of the ratchet 411 in the driven wheel 43, so that the driving wheel 41 is driven to rotate unidirectionally, the driven wheel 43 is driven to rotate unidirectionally through the conveying belt 42, and the chair surface 50 is driven to automatically turn over. Specifically, referring to fig. 4 to 5, when the first link 212 moves downward, the pawl 44 is driven to move along the direction a, the ratchet 411 moves along the direction B relative to the pawl 44, and at this time, the pawl 44 does not act on the ratchet 411, and the driving wheel 41 does not move; when the first link 212 moves upward, the pawl 44 is moved in the direction B, and the pawl 44 acts on the ratchet 411, so that the driving wheel 41 also moves in the direction B.
The swing arm rotating mechanism 20 comprises a first rotating mechanism 21 and a second rotating mechanism 22 which are arranged at two sides of the chair frame 10, the first rotating mechanism 21 comprises a first fixed shaft 211 and a first connecting rod 212 which are fixedly arranged at one side of the chair frame 10, the second rotating mechanism 22 comprises a second fixed shaft 221 and a second connecting rod 222 which are fixedly arranged at the other side of the chair frame 10, one end of the first connecting rod 212 and one end of the second connecting rod 222 are respectively and rotatably connected with two ends of the rotating shaft 30, the other end of the first connecting rod 212 is rotatably connected with the first fixed shaft 211, and the other end of the second connecting rod 222 is rotatably connected with the second fixed shaft 221. In the present embodiment, the automatic flipping mechanism 40 is provided on the side of the first rotation mechanism 21, while the pawl 44 is provided on the side of the first link 212.
The limiting device 70 comprises a fixed block 71, a limiting pin 72, a spring 73 and an inclined block 74, wherein the fixed block 71 is fixedly sleeved on the rotating shaft 30, a through hole is formed in the fixed block 71, the limiting pin 72 is in a ladder shape and comprises a first shaft portion and a second shaft portion, the diameter of the first shaft portion is gradually reduced, the second shaft portion is matched with the through hole and can slide in the through hole, the spring 73 is arranged between the first shaft portion and the fixed block 71, the inclined block 74 is arranged on the inner side of the first connecting rod 212, the inclined block 74 is in a wedge shape, the thickness of the inclined block 74 gradually reduces from the bottom of the connecting rod upwards, and the inclined block 74 is correspondingly arranged with the limiting block. The principle in which the limiting device 70 achieves forward rotation of the seating surface 50 is as follows: when the user dials down the seat 50, the rotating shaft 30 drives the fixed block 71 to rotate backwards, and meanwhile, the limiting pin 72 also rotates backwards until the limiting pin 72 abuts against the lower surface of the inclined block 74 (under the action of the spring 73, the outermost side of the limiting pin 72 is located below the projection surface of the lower surface of the inclined surface), the seat 50 does not rotate downwards any more, so that the seat 50 is parallel to the horizontal plane, and the user can sit down conveniently; when the user stands up, under the action of the automatic turning mechanism 40, the seat 50 automatically turns, at this time, the seat 50 rotates upwards, the fixed block 71 and the limiting pin 72 rotate forwards, and when the limiting pin 72 gradually approaches the upper end of the inclined block 74, the limiting pin 72 approaches the fixed block 71 under the action of the inclined plane, and the spring 73 is compressed until the limiting pin 72 passes over the lower surface of the inclined block 74, so that one turn of the seat 50 is completed.
The return device 60 comprises two tension springs 61, the two tension springs 61 are arranged in parallel, one end of one tension spring 61 is connected with one vertical square tube 112, the other end of the other tension spring 61 is connected with a first connecting rod 212, one end of the other tension spring 61 is connected with the other vertical square tube 112, and the other end of the other tension spring 61 is connected with a second connecting rod 222. When the user stands up, under the action of the two tension springs 61, the first link 212 rotates upward on the second link 222, and the seat 50 is turned over.
The seat 50 includes first seat 51, connecting seat 52 and second seat 53, and connecting seat 52 sets up two, and side by side and fixed cover are located on pivot 30, and first seat 51 and second seat 53 set up respectively in two connecting seat 52 both ends, and the user of being convenient for uses first seat 51 and second seat 53 in turn, and the back is switched to seat 50, and unused seat 50 can carry out natural cooling, reduces the bacterial survival environment, when the next time switches seat 50 to use, reduces the bacterial infection between different human bodies.
The chair frame 10 comprises a chair angle 11 and a connecting shaft 12 connected with the chair angle 11, wherein the chair angle 11 and the connecting shaft 12 are respectively provided with two parts; the chair angle 11 comprises two square tubes which are perpendicular to each other, namely a horizontal square tube 111 and a vertical square tube 112, wherein two ends of one connecting shaft 12 are connected with the horizontal square tube 111, and two ends of the other connecting shaft 12 are connected with the vertical square tube 112; the limiting blocks are two, are fixedly arranged on the two vertical square tubes 112 respectively, and limit the swing arm rotating mechanism 20 to form an included angle of 90 degrees with the vertical square tubes 112. The bottoms of the two chair corners 11 are provided with anti-slip pads, so that the friction force between the public chair and the ground can be increased; or the chair angle 11 is directly fixed on the ground.
When a user needs to sit down, the public chair of the invention dials down the chair surface 50, so that the chair surface 50 is vertical to the vertical square tube 112, the user sits down stably, and after standing up, the public chair can turn over under the action of the automatic turning mechanism 40 for subsequent reuse.
In summary, the public seat is provided with the swing arm rotating mechanism, when the public seat is not used, the public seat is in an upward inclined position under the action of the return device, the whole volume of the public seat can be greatly saved, under the condition that the seat is not used, the space between the front row and the rear row is not required to be larger, the public seat is convenient for a user to sit down, the using space of the public seat is greatly saved, meanwhile, the public seat is also provided with the automatic overturning mechanism, under the action of the limiting device, the seat is prevented from rotating forwards, and meanwhile, under the action of the limiting block, the swing arm rotating mechanism is prevented from rotating downwards, so that the user sits on the seat stably, under the action of the return device, the swing arm rotating mechanism rotates upwards, pawls are matched with ratchets to drive the driving wheel to rotate unidirectionally under the action of the conveying belt, then the driven wheel drives the rotating shaft to rotate unidirectionally, and the seat face is rotated backwards to realize automatic switching overturning; after the chair surface is switched, the unused chair surface can be naturally cooled, so that the bacterial survival environment is reduced, and bacterial infection among different human bodies is reduced when the chair surface is switched next time. The public chair has the advantages of simple structure, low cost, convenient popularization, clear production process and quick market input.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (7)
1. The utility model provides a convenient and public seat that can switch seat automatically, its characterized in that includes the seat frame, sets up the swing arm rotary mechanism in the seat frame both sides, sets up in the terminal pivot of swing arm rotary mechanism, sets up the automatic tilting mechanism in swing arm rotary mechanism one side, sets up the seat in the pivot, sets up return means between swing arm rotary mechanism and seat frame, sets up the stop device between pivot and swing arm rotary mechanism and sets up the stopper on the seat frame, wherein seat and pivot fixed connection, pivot and swing arm rotary mechanism swivelling joint, automatic tilting mechanism and pivot fixed connection, return means one end and seat frame fixed connection, the other end and swing arm rotary mechanism fixed connection, swing arm rotary mechanism drives pivot and seat rotation, stop device restricts the forward rotation of seat, the stopper fixed setting is on the seat frame, restricts swing arm rotary mechanism and rotates downwards;
the automatic overturning mechanism comprises a driving wheel, a driven wheel, a pawl and a conveyor belt, wherein the driving wheel is rotationally connected with the swing arm rotating mechanism, ratchets are arranged in the driving wheel, the pawl is fixedly arranged on one side of the swing arm rotating mechanism and matched with the ratchets to drive the driving wheel to rotate unidirectionally, the conveyor belt is sleeved with the driving wheel and the driven wheel, the driven wheel is fixedly connected with the rotating shaft, the pawl drives the driving wheel to rotate unidirectionally, and the conveyor belt drives the driven wheel to rotate unidirectionally so as to drive the chair surface to overturn;
the swing arm rotating mechanism comprises a first rotating mechanism and a second rotating mechanism which are arranged on two sides of the chair frame, the first rotating mechanism comprises a first fixed shaft and a first connecting rod which are fixedly arranged on one side of the chair frame, the second rotating mechanism comprises a second fixed shaft and a second connecting rod which are fixedly arranged on the other side of the chair frame, one end of the first connecting rod and one end of the second connecting rod are respectively and rotatably connected with two ends of the rotating shaft, the other end of the first connecting rod is rotatably connected with the first fixed shaft, and the other end of the second connecting rod is rotatably connected with the second fixed shaft;
the limiting device comprises a fixed block, a limiting pin, a spring and an inclined block, wherein the fixed block is fixedly sleeved on a rotating shaft, a through hole is formed in the fixed block, the limiting pin is in a ladder shape and comprises a first shaft portion and a second shaft portion, the diameter of the first shaft portion is gradually reduced, the second shaft portion is matched with the through hole and can slide in the through hole, the spring is arranged between the first shaft portion and the fixed block, the inclined block is arranged on the inner side of a first connecting rod and is in a wedge shape, the thickness of the inclined block upwards gradually reduces from the bottom of the connecting rod, and the inclined block is correspondingly arranged with a limiting block.
2. The public chair with the seat capable of being conveniently and automatically switched according to claim 1, wherein the return device comprises two tension springs, the two tension springs are arranged in parallel, one end of each tension spring is connected with one vertical square tube, the other end of each tension spring is connected with a first connecting rod, one end of each tension spring is connected with the other vertical square tube, and the other end of each tension spring is connected with a second connecting rod.
3. The public chair with the convenient and automatic chair surface switching function according to claim 1, wherein the chair surface comprises a first chair plate, a connecting seat and a second chair plate, the two connecting seats are arranged side by side and fixedly sleeved on the rotating shaft, and the first chair plate and the second chair plate are respectively arranged at two ends of the two connecting seats.
4. A public chair with a convenient and automatically switchable seat according to any one of claims 1 to 3, wherein the chair frame comprises a chair angle and a connecting shaft connected with the chair angle, and the chair angle and the connecting shaft are respectively provided with two.
5. The public chair with the convenient and automatic seat switching function according to claim 4, wherein the chair angle comprises two square pipes which are perpendicular to each other, namely a horizontal square pipe and a vertical square pipe, one of the two ends of the connecting shaft is connected with the horizontal square pipe, and the other of the two ends of the connecting shaft is connected with the vertical square pipe.
6. The public chair with the convenient and automatic chair surface switching function according to claim 5, wherein two limiting blocks are respectively and fixedly arranged on two vertical square tubes, and the limiting swing arm rotating mechanism forms an included angle of 90 degrees with the vertical square tubes.
7. A convenient and automatically switchable seat public chair according to claim 4, wherein the bottom of both said corners is provided with a non-slip pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810680487.0A CN108741847B (en) | 2018-06-27 | 2018-06-27 | Public chair convenient to use and capable of automatically switching chair surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810680487.0A CN108741847B (en) | 2018-06-27 | 2018-06-27 | Public chair convenient to use and capable of automatically switching chair surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108741847A CN108741847A (en) | 2018-11-06 |
| CN108741847B true CN108741847B (en) | 2024-01-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810680487.0A Active CN108741847B (en) | 2018-06-27 | 2018-06-27 | Public chair convenient to use and capable of automatically switching chair surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108741847B (en) |
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| CN209058464U (en) * | 2018-06-27 | 2019-07-05 | 厦门加正科技有限公司 | A kind of convenience and the public chair that seat can be automatically switched |
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2018
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| CN108741847A (en) | 2018-11-06 |
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