CN102805503A - Chair tray with tensile type connecting pipe - Google Patents
Chair tray with tensile type connecting pipe Download PDFInfo
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- CN102805503A CN102805503A CN201210298548XA CN201210298548A CN102805503A CN 102805503 A CN102805503 A CN 102805503A CN 201210298548X A CN201210298548X A CN 201210298548XA CN 201210298548 A CN201210298548 A CN 201210298548A CN 102805503 A CN102805503 A CN 102805503A
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- chair
- tube connector
- game
- convex tendon
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Abstract
The invention relates to a chair tray with a tensile type connecting pipe, which overcomes the defects that as the existing chair middle tray is in welded connection with the connecting pipe in a split type, the higher matching requirements are required; and the processing requirements are higher. The chair tray comprises a chair middle tray and a chair chassis which are mutually hinged; and a back connecting part is arranged between the chair middle tray and the chair chassis. The chair tray is characterized in that the inverted conical connecting pipe is integrally stretched on the chair middle tray; the internal diameter of the end part of the connecting pipe is larger than the internal diameter of the root of the connecting pipe at the side of the chair middle tray; a plurality of convex ribs are arranged between the periphery of the connecting pipe and the chair middle disc, project outwards from the connecting pipe, are bent at the root of the connecting pipe and extend onto the chair middle tray; the two ends of the convex ribs and bending parts in the middle of the convex ribs form a triangular support; and the convex ribs and the connecting pipe are integrally stretched from the chair middle disc. The chair tray has the beneficial effects that the connecting pipe and the chair middle tray are integrally stretched, the process is simple, the processing is convenient, the split production is not required, and no welded connection is required, so that the processing requirements are reduced.
Description
Technical field
The present invention relates to a kind of chair tray, especially a kind of easy to process, chair tray that intensity is high with drawing tube connector.
Background technology
The lift seat is because its adjustable height can adapt to people's use of different heights, and the workbench that also can adapt to differing heights uses, so the scope of application of lift seat is more and more wider, and the people of use is also more and more.
Be connected with the air pressure rod of up-down for the ease of the chair mid-game in the existing lift seat; And connect reliable; Generally at needs fixing support in the chair mid-game; This support links to each other with the upper end of air pressure rod, and the upper end of air pressure rod connects the back and passes support and contacts with the adjusting rod of chair mid-game inside, is used to regulate the extension elongation of air pressure rod.
But being connected between existing support and the chair mid-game is to realize through welding; The mode of welding needs two parts of processing to the bad control of precision, and the cooperation between two parts is had relatively high expectations; Two parts are through after welding, and the intensity of the periphery of welding position can be weakened.
Patent Office of the People's Republic of China discloses a CN102334856A document on February 1st, 2012, name is called the seat support pallet, comprises base plate, sliding seat, conical pipe and adjusting device; Sliding seat is connected with base plate, is connected with air pressure rod in the centre of sliding seat, and conical pipe fixed head and conical pipe are welded on the sliding seat; Adjusting device includes adjusting rod, adjustable plate, torsion spring, torsion spring fixed head; Adjusting rod interts in sliding seat, and adjustable plate is connected on the adjusting rod, and the one side of adjustable plate connects air pressure rod; Another side is connected with torsion spring, on the another side of adjustable plate, is provided with adjustable plate and ends blade.The conical pipe upper-end inner diameter here is little, and bottom diameter is big, therefore with after air pressure rod cooperates can cause the seat pallet to rotate around the air pressure rod end position, stability decreases, and also conical pipe is for being welded to connect, the cooperation requirement that needs are higher, and processing request is higher.
Summary of the invention
The invention solves between current chairs mid-game and the tube connector and be welded to connect for split; Need higher cooperation requirement; The defective that processing request is higher provides a kind of chair tray with drawing tube connector, and tube connector is directly stretched by the chair mid-game and forms; Need not to process two parts, also need not to control two quality of fits between the parts.
The present invention has also solved between current chairs mid-game and the tube connector and has been welded to connect for split; Cause the bad control of precision of welding; And can cause the defective of weakening to the periphery of welding position, and a kind of chair tray with drawing tube connector is provided, tube connector is directly stretched by the chair mid-game and forms; Need not to process two parts, the machining accuracy of tube connector is higher.
The technical solution adopted for the present invention to solve the technical problems is: a kind of chair tray with drawing tube connector; Comprise the chair mid-game and the Chair underframe that are hinged; Be provided with the backrest attaching parts between chair mid-game and the Chair underframe; It is characterized in that one in the chair mid-game stretches the tube connector of back taper is arranged, the internal diameter of tube connector end is greater than the internal diameter of tube connector at the root of chair mid-game side; Be provided with some roads convex tendon between the periphery of tube connector and the chair mid-game, convex tendon from the tube connector to outer lug, at the root bending of tube connector and extend in the chair mid-game, the bend in the middle of the two ends of convex tendon and the convex tendon forms triangular support; Convex tendon and tube connector stretch from chair mid-game one and form.Tube connector and chair mid-game one stretch, and technology is simple, and is easy to process, need not split production, also need not to be welded to connect, thereby can guarantee the positional precision of the relative chair mid-game of tube connector; The inner end diameter of tube connector is the back taper shape greatly, is convenient to be connected with the air pressure rod end, especially is convenient to the relative tube connector in air pressure rod end and assembles, and can adjust the position automatically; The convex tendon support triangular in shape that tube connector is outside, the support strength of tube connector is big, and also can be strengthened in the position of chair mid-game tube connector periphery.
For ease of processing, through the conical pipe transition of forward, the miner diameter end of conical pipe connects tube connector between tube connector and the chair mid-game, and the bigger diameter end of conical pipe connects the chair mid-game.Prevent that the phenomenon of drawing crack from appearring in the chair mid-game tube connector that directly stretches, and can guarantee the quality that stretches better.
A kind of scheme: convex tendon is four, is 90 ° of symmetric arrangement at interval, and each convex tendon comprises one section straight rib and two swash plates compositions that are connected straight rib both sides, and the cross section of convex tendon is V-shaped.Straight rib and swash plate are V-shaped, relative tube connector of this convex tendon and chair mid-game support triangular in shape.
As preferably, straight rib is connected in the chair mid-game from the outer inclination of conical pipe, and a limit of swash plate is connected to the conical pipe appearance, and another of swash plate limit is connected in the chair mid-game.
Another kind of scheme: the cross section of convex tendon totally eight the equi-spaced apart symmetric arrangement that take the shape of the letter U; One end of convex tendon is on the periphery of tube connector, and the middle part of convex tendon is from the conical pipe appearance transition between tube connector and the chair mid-game, and the other end of convex tendon is in the chair mid-game.After the transition of convex tendon process conical pipe, two ends are in respectively in tube connector and the chair mid-game, relative tube connector of convex tendon and chair mid-game support triangular in shape.
As preferably, the two ends of convex tendon are 1/4 bulb shape, and the end of the convex tendon on the tube connector is in the medium position of tube connector.The end of convex tendon is the part of bulb, and the demoulding is more convenient, the more reasonable stress of convex tendon.
Further scheme: the end of the convex tendon in the chair mid-game is 1/4 bulb shape, and the convex tendon one on the tube connector is through to the free end of tube connector.
As preferably, be hinged with drive rod in the chair mid-game, the two ends of drive rod are on the Chair underframe, and drive rod has bending part, and bending part is in the axis place of tube connector.
As preferably, the backrest attaching parts comprise the joint pin that penetrates Chair underframe and chair mid-game, be enclosed within sleeve pipe and the spring on the joint pin and be spun on the nut of joint pin end, and nut is externally connected to pivoted housing.
The invention has the beneficial effects as follows: tube connector and chair mid-game one stretch, and technology is simple, and is easy to process, need not split production, also need not to be welded to connect, thereby can guarantee the positional precision of the relative chair mid-game of tube connector; The inner end diameter of tube connector is the back taper shape greatly, is convenient to be connected with the air pressure rod end, especially is convenient to the relative tube connector in air pressure rod end and assembles, and can adjust the position automatically; The convex tendon support triangular in shape that tube connector is outside, the support strength of tube connector is big, and also can be strengthened in the position of chair mid-game tube connector periphery.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the exploded view of the present invention's structure shown in Figure 1;
Fig. 3 is second kind of structural representation of the present invention;
Fig. 4 is the third structural representation of the present invention;
Among the figure: 1, tube connector, 2, convex tendon, 3, conical pipe, 4, the chair mid-game, 5, handle; 6, drive rod, 7, Chair underframe, 8, sleeve pipe, 9, pivoted housing, 10, nut; 11, spring, 12, joint pin, 13, spacer pin, 14, bending part; 15, connecting axle, 16, slotted hole, 17, straight rib, 18, swash plate.
The specific embodiment
Pass through specific embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment 1: a kind of chair tray (referring to accompanying drawing 1 accompanying drawing 2) with drawing tube connector, comprise the chair mid-game 4 and Chair underframe 7 that are hinged, and be provided with the backrest attaching parts between chair mid-game and the Chair underframe.The middle part of Chair underframe is flute profile, and the chair mid-game is flute profile, and the chair mid-game tips upside down in the central groove of Chair underframe.Chair mid-game and Chair underframe are hinged through connecting axle 15, are interspersed with drive rod 6 on chair mid-game and the Chair underframe jointly, and drive rod is in the direction identical with connecting axle.
The bottom land position one of chair mid-game stretches the tube connector 1 of back taper is arranged, and the internal diameter of tube connector upper end is greater than the internal diameter of tube connector at the root of chair mid-game side.Be connected through conical pipe 3 between the panel surface in tube connector root and the chair, the conical pipe flare here, the miner diameter end of conical pipe connects the root of tube connector, and the bigger diameter end of conical pipe connects the chair mid-game.
Be provided with eight road convex tendons 2 between the periphery of tube connector and the chair mid-game; The cross section of the convex tendon equi-spaced apart symmetric arrangement that takes the shape of the letter U; One end of convex tendon is on the periphery of tube connector; The middle part of convex tendon is from the conical pipe appearance transition between tube connector and the chair mid-game, and the other end of convex tendon is in the chair mid-game.The two ends of convex tendon are 1/4 bulb shape, and the end of the convex tendon on the tube connector is in the medium position of tube connector.Bend in the middle of the two ends of convex tendon and the convex tendon forms triangular support, and convex tendon stretches from chair mid-game one together with tube connector and forms.
Drive rod has bending part 14, and bending part is in the axis place of tube connector, and the end that drive rod stretches out Chair underframe is fixed with handle 5, and the position that corresponding drive rod stretches out on the Chair underframe is provided with slotted hole 16.The backrest attaching parts comprise the joint pin 12 that penetrates Chair underframe and chair mid-game, be enclosed within sleeve pipe 8 and the spring 11 on the joint pin and be spun on the nut 10 of joint pin end, and nut is externally connected to pivoted housing 9.
Embodiment 2: a kind of chair tray (referring to accompanying drawing 3) with drawing tube connector, comprise the chair mid-game 4 and Chair underframe 7 that are hinged, and be provided with the backrest attaching parts between chair mid-game and the Chair underframe.The middle part of Chair underframe is flute profile, and the chair mid-game is flute profile, and the chair mid-game tips upside down in the central groove of Chair underframe.Chair mid-game and Chair underframe are hinged through connecting axle 15, are interspersed with drive rod 6 on chair mid-game and the Chair underframe jointly, and drive rod is in the direction identical with connecting axle.
The bottom land position one of chair mid-game stretches the tube connector 1 of back taper is arranged, and the internal diameter of tube connector upper end is greater than the internal diameter of tube connector at the root of chair mid-game side.In tube connector root and the chair between the panel surface conical pipe 3 through forward be connected, the miner diameter end of conical pipe connects the root of tube connector, the bigger diameter end of conical pipe connects the chair mid-game.
Be provided with four roads in conical pipe periphery and the chair between the panel surface and be 90 ° of convex tendons 2 of symmetric arrangement at interval; Each convex tendon comprises one section straight rib 17 and two swash plates 18 compositions that are connected straight rib both sides; The V-shaped relative conical pipe in the cross section of convex tendon forms triangular support, and convex tendon stretches from chair mid-game one together with tube connector and forms.Straight rib is connected in the chair mid-game from the outer inclination of conical pipe, and a limit of swash plate is connected to the conical pipe appearance, and another of swash plate limit is connected in the chair mid-game.All the other structures are with reference to embodiment 1.
Embodiment 3: a kind of chair tray (referring to accompanying drawing 4) with drawing tube connector, comprise the chair mid-game 4 and Chair underframe 7 that are hinged, and be provided with the backrest attaching parts between chair mid-game and the Chair underframe.The middle part of Chair underframe is flute profile, and the chair mid-game is flute profile, and the chair mid-game tips upside down in the central groove of Chair underframe.Chair mid-game and Chair underframe are hinged through connecting axle 15, are interspersed with drive rod 6 on chair mid-game and the Chair underframe jointly, and drive rod is in the direction identical with connecting axle.
The bottom land position one of chair mid-game stretches the tube connector 1 of back taper is arranged, and the internal diameter of tube connector upper end is greater than the internal diameter of tube connector at the root of chair mid-game side.Be connected through conical pipe 3 between the panel surface in tube connector root and the chair, the conical pipe flare here, the miner diameter end of conical pipe connects the root of tube connector, and the bigger diameter end of conical pipe connects the chair mid-game.
Be provided with eight road convex tendons 2 between the periphery of tube connector and the chair mid-game; The cross section of the convex tendon equi-spaced apart symmetric arrangement that takes the shape of the letter U; One end of convex tendon is on the periphery of tube connector; The middle part of convex tendon is from the conical pipe appearance transition between tube connector and the chair mid-game, and the other end of convex tendon is in the chair mid-game.The end of the convex tendon in the chair mid-game is 1/4 bulb shape, and the convex tendon one on the tube connector is through to the upper end of tube connector.Bend in the middle of the two ends of convex tendon and the convex tendon forms triangular support, and convex tendon stretches from chair mid-game one together with tube connector and forms.
Above-described embodiment is several kinds of preferred version of the present invention, is not the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (9)
1. chair tray with drawing tube connector; Comprise the chair mid-game and the Chair underframe that are hinged; Be provided with the backrest attaching parts between chair mid-game and the Chair underframe; It is characterized in that one in the chair mid-game stretches the tube connector of back taper is arranged, the internal diameter of tube connector end is greater than the internal diameter of tube connector at the root of chair mid-game side; Be provided with some roads convex tendon between the periphery of tube connector and the chair mid-game, convex tendon from the tube connector to outer lug, at the root bending of tube connector and extend in the chair mid-game, the bend in the middle of the two ends of convex tendon and the convex tendon forms triangular support; Convex tendon and tube connector stretch from chair mid-game one and form.
2. the chair tray with drawing tube connector according to claim 1 is characterized in that passing through between tube connector and the chair mid-game conical pipe transition of forward, and the miner diameter end of conical pipe connects tube connector, and the bigger diameter end of conical pipe connects the chair mid-game.
3. the chair tray with drawing tube connector according to claim 1 and 2 is characterized in that convex tendon is four, is 90 ° of symmetric arrangement at interval, and each convex tendon comprises one section straight rib and two swash plates compositions that are connected straight rib both sides, and the cross section of convex tendon is V-shaped.
4. the chair tray with drawing tube connector according to claim 3 is characterized in that straight rib is connected in the chair mid-game from the outer inclination of conical pipe, and a limit of swash plate is connected to the conical pipe appearance, and another of swash plate limit is connected in the chair mid-game.
5. the chair tray with drawing tube connector according to claim 1 and 2, the cross section that it is characterized in that convex tendon totally eight the equi-spaced apart symmetric arrangement that take the shape of the letter U; One end of convex tendon is on the periphery of tube connector, and the middle part of convex tendon is from the conical pipe appearance transition between tube connector and the chair mid-game, and the other end of convex tendon is in the chair mid-game.
6. the chair tray with drawing tube connector according to claim 5, the two ends that it is characterized in that convex tendon are 1/4 bulb shape, and the end of the convex tendon on the tube connector is in the medium position of tube connector.
7. the chair tray with drawing tube connector according to claim 5, the end that it is characterized in that the convex tendon in the chair mid-game is 1/4 bulb shape, the convex tendon one on the tube connector is through to the free end of tube connector.
8. the chair tray with drawing tube connector according to claim 1 and 2 is characterized in that being hinged with drive rod in the chair mid-game, and the two ends of drive rod are on the Chair underframe, and drive rod has bending part, and bending part is in the axis place of tube connector.
9. the chair tray with drawing tube connector according to claim 1 and 2; It is characterized in that the backrest attaching parts comprise the joint pin that penetrates Chair underframe and chair mid-game, are enclosed within sleeve pipe and the spring on the joint pin and are spun on the nut of joint pin end, nut is externally connected to pivoted housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298548XA CN102805503A (en) | 2012-08-20 | 2012-08-20 | Chair tray with tensile type connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298548XA CN102805503A (en) | 2012-08-20 | 2012-08-20 | Chair tray with tensile type connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102805503A true CN102805503A (en) | 2012-12-05 |
Family
ID=47229508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210298548XA Pending CN102805503A (en) | 2012-08-20 | 2012-08-20 | Chair tray with tensile type connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102805503A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104739063A (en) * | 2015-03-31 | 2015-07-01 | 李群杰 | Novel chair frame |
| CN113749449A (en) * | 2021-09-16 | 2021-12-07 | 嘉兴市永泰五金塑料有限责任公司 | Office chair chassis with rotating structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659368A1 (en) * | 1993-12-21 | 1995-06-28 | Shepherd Products, Inc. | Chair base |
| CN201782350U (en) * | 2010-09-25 | 2011-04-06 | 杭州杨氏实业有限公司 | Chassis |
| CN201831356U (en) * | 2010-09-08 | 2011-05-18 | 杜亚伦 | Office chair base plate |
| CN201854931U (en) * | 2010-09-19 | 2011-06-08 | 杜亚伦 | Fast-detachable office chair chassis |
| CN201958270U (en) * | 2011-03-24 | 2011-09-07 | 黄汝南 | Novel chassis of connecting-body surface cover chair |
| CN102334856A (en) * | 2010-07-28 | 2012-02-01 | 张菊香 | Chair seat tray |
-
2012
- 2012-08-20 CN CN201210298548XA patent/CN102805503A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659368A1 (en) * | 1993-12-21 | 1995-06-28 | Shepherd Products, Inc. | Chair base |
| CN102334856A (en) * | 2010-07-28 | 2012-02-01 | 张菊香 | Chair seat tray |
| CN201831356U (en) * | 2010-09-08 | 2011-05-18 | 杜亚伦 | Office chair base plate |
| CN201854931U (en) * | 2010-09-19 | 2011-06-08 | 杜亚伦 | Fast-detachable office chair chassis |
| CN201782350U (en) * | 2010-09-25 | 2011-04-06 | 杭州杨氏实业有限公司 | Chassis |
| CN201958270U (en) * | 2011-03-24 | 2011-09-07 | 黄汝南 | Novel chassis of connecting-body surface cover chair |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104739063A (en) * | 2015-03-31 | 2015-07-01 | 李群杰 | Novel chair frame |
| CN113749449A (en) * | 2021-09-16 | 2021-12-07 | 嘉兴市永泰五金塑料有限责任公司 | Office chair chassis with rotating structure |
| CN113749449B (en) * | 2021-09-16 | 2024-04-16 | 嘉兴市永泰五金塑料有限责任公司 | Office chair chassis with rotating structure |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |