CN104634599A - Chair back pressure resistance and fatigue tester and test method thereof - Google Patents
Chair back pressure resistance and fatigue tester and test method thereof Download PDFInfo
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- CN104634599A CN104634599A CN201510047106.1A CN201510047106A CN104634599A CN 104634599 A CN104634599 A CN 104634599A CN 201510047106 A CN201510047106 A CN 201510047106A CN 104634599 A CN104634599 A CN 104634599A
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- chair back
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- chair
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Abstract
The invention discloses a chair back pressure resistance and fatigue tester, which comprises a support framework, a tensioning framework and a tensioning mechanism arranged on the tensioning framework, the tensioning framework comprises four first upright posts and a plurality of support frames arranged between the four upright posts, the tensioning mechanism comprises a tensioning cylinder, a counterweight, two tensioning support rods, an upper tensioning wheel and a lower tensioning wheel, the tensioning cylinder is arranged at the top of the tensioning framework, the counterweight is connected with the piston rod of the tensioning cylinder, the two tensioning support rods are arranged at one side of the counterweight, the upper tensioning wheel and the lower tensioning wheel are arranged between the two tensioning support rods, the counterweight is connected with a tensioning chain, and the tensioning chain respectively rounds the upper tensioning wheel and the lower tensioning wheel to connect with a chair back; the support framework comprises a plurality of second upright posts, a top frame and a bottom frame, the top frame and the bottom frame are arranged between the second upright posts, and a turnable platform for supporting a chair is arranged in the top frame. The chair back pressure resistance and fatigue tester has high stability in the process of a test, and test results are accurate and reliable; moreover, the arrangement of the turnable platform ensures that the chair back pressure resistance and fatigue tester can be used for testing various models of chairs.
Description
Technical field
The invention belongs to chair quality testing field, particularly relate to a kind of chair back crushing resistance and fatigability proving installation and method of testing thereof.
Background technology
Seat is in normal use procedure, and the chair back can be subject to load and the stamping press of accumulation property, so safe and reliable seat must can stand a certain size crushing resistance and fatigability test.
But, the chair back compression test equipment that in existing seat manufacturer, general shortage is special, the testing apparatus that usual employing is built temporarily is tested, the testing apparatus that this kind is built temporarily is general simpler and easy, thus stability and degree of accuracy can not get ensureing in test process, and applicable chair model is also restricted.
Summary of the invention
The present invention is in order to solve the defect and deficiency that exist in above-mentioned prior art, and provide one and can be used for the test of various model chair, and in test process, stability is high, test result accurately chair back crushing resistance and fatigability proving installation and method of testing thereof reliably.
Technical scheme of the present invention: a kind of chair back crushing resistance and fatigability proving installation, the tensioning mechanism comprising supporting bracket, tension support and be arranged on tension support,
Some carriages that described tension support comprises four first columns and is arranged between four first columns,
Described tensioning mechanism comprises the tension cylinder being arranged on tension cradle top, the balancing weight be connected on tension cylinder piston rod, the two tension support bars being arranged on balancing weight side and the upper take-up pulley be arranged between two tension support bars and lower take-up pulley, described balancing weight is connected with tensioning chain, and described tensioning chain is walked around take-up pulley respectively and is connected the chair back with lower take-up pulley;
Described supporting bracket comprises some second columns and the top frame be arranged between the second column and underframe, is provided with the turnover platform supporting chair in the frame of described top.
The present invention strains support and supporting bracket is provided separately and cooperatively interacts, and adopt tension cylinder, balancing weight, take-up pulley to coordinate tensioning chain to draw the chair back, make stability in its test process high, test result is accurately reliable simultaneously; The setting of turnover platform simultaneously, makes it can be used for the test of various model chair.
Preferably, described carriage comprises the first carriage, the second carriage, the 3rd carriage and the 4th carriage from top to bottom, described 4th carriage and underframe are connected as a single entity by two connecting rods, described first carriage crown center is provided with cylinder supports bar, described tension cylinder is vertically arranged in the middle part of cylinder supports bar, the piston rod of tension cylinder, is equipped with reinforcement between described first carriage and the first column, between the 4th carriage and the first column down.
This kind of structure makes the setting of straining cylinder more reasonable, and cinching process is more steadily reliable.
Preferably, the piston rod end of tension cylinder is connected with balancing weight with two load-bearing chains by a counterbalance weight, and two load-bearing chain tops connect bottom counterbalance weight, connect balancing weight top bottom two load-bearing chains.
This kind of structure makes the process straining cylinder tension balancing weight more steadily reliable.
Preferably, two tension support bar top are fixed on inside the second carriage, are fixed on underframe side bottom two tension support bars, lean against outside the 3rd carriage in the middle part of two tension support bars.
This kind of structure makes two settings of straining support bar more solid and reliable, thus makes cinching process more steadily reliable.
Preferably, described upper take-up pulley is many rings wheel, and it is fixed between two tension support bars by two upper joint sleeves, and described lower take-up pulley is monocycle wheel, and it is fixed between two tension support bars by two lower joint sleeves.
This kind of structure makes take-up pulley and lower take-up pulley and two connections of straining support bar more solid and reliable, thus makes cinching process more steadily reliable.
Preferably, be provided with supporting traverse in the middle part of the frame of described top, in the middle part of described underframe, be provided with lower support crossbeam, be rotationally connected with upper supporting traverse in the middle part of described turnover platform.
This kind of structure facilitates the upset of turnover platform, thus the angle of convenient adjustment chair to be measured, make its applicable model more many.
Preferably, be provided with screw mandrel and feed screw nut, described feed screw nut be connected with a push rod, be fixed on feed screw nut bottom described push rod outside described lower support crossbeam and underframe, push rod top is fixed on turnover platform one side bottom.
This kind of structure makes the upset of turnover platform more steadily reliable, thus ensures reliability and the accuracy of chair angular setting.
Preferably, described screw mandrel is connected respectively with outside lower support crossbeam and underframe by two bearings, and screw mandrel outboard end is provided with wind.
This kind of structure handled easily person is manually to the upset of turnover platform, thus the convenient adjustment to chair angle to be measured.
Preferably, described turnover platform crown center is provided with two groups of chair fixed mounts, often organizes chair fixed mount and comprises two standing screws, two fixed cross beams and two clamp nuts.
This kind of structure makes it more solid and reliable to fixing of chair to be measured, and the model simultaneously can also changing different chair is according to demand tested.
A method of testing for chair back crushing resistance and fatigability proving installation, comprises the steps:
1) be first fixed in turnover platform by bottom chair by two groups of chair fixed mounts, tensioning chain one end is fixed on the chair back;
2) start tension cylinder, tension cylinder stretches out piston rod, and balancing weight is sagging, pulls tensioning chain, and tensioning chain pulls the chair back to press down;
3) strain cylinder and regain piston rod, balancing weight promotes, and tensioning chain rises, and the chair back resets, and completes a circulation, completes above-mentioned circulation more than 10,000 times;
Can overturn according to demand in described step 1) turnover platform adjustment draw the angle of the chair back.
The present invention strains support and supporting bracket is provided separately and cooperatively interacts, and adopt tension cylinder, balancing weight, take-up pulley to coordinate tensioning chain to draw the chair back, make stability in its test process high, test result is accurately reliable simultaneously; The setting of turnover platform simultaneously, makes it can be used for the test of various model chair.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
1. tension supports in figure, 2. supporting bracket, 3. strain cylinder, 4. strain support bar, 5. go up take-up pulley, 6. descend take-up pulley, 7. load-bearing chain, 8. counterbalance weight, 9. upper joint sleeve, 10. lower joint sleeve, 11. first columns, 12. first carriages, 13. reinforcements, 14. cylinder supports bars, 15. balancing weights, 16. tensioning chains, 17. second carriages, 18. the 3rd carriages, 19. the 4th carriages, 20. connecting rods, 21. second columns, 22. top frames, 23. turnover platform, 24. push rods, 25. screw mandrels, 26. feed screw nuts, 27. bearings, 28. winds, 29. fixed cross beams, 30. standing screws, 31. clamp nuts, 32. underframes, 33. lower support crossbeams.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation, but be not limiting the scope of the invention.
As shown in Figure 1, a kind of chair back crushing resistance and fatigability proving installation, the tensioning mechanism comprising supporting bracket 2, tension support 1 and be arranged on tension support 1,
Four carriages that tension support 1 comprises four first columns 11 and is arranged between four first columns 11,
Tensioning mechanism comprises the tension cylinder 3 being arranged on tension support 1 top, the balancing weight 15 be connected on tension cylinder 3 piston rod, the two tension support bars 4 being arranged on balancing weight 15 side and the upper take-up pulley 5 be arranged between two tension support bars 4 and lower take-up pulley 6, balancing weight 15 is connected with tensioning chain 16, tensioning chain 16 is walked around take-up pulley 5 respectively and is connected the chair back with lower take-up pulley 6;
Supporting bracket 2 comprises the six roots of sensation second column 21 and the top frame 22 be arranged between the six roots of sensation second column 21 and underframe 32, is provided with the turnover platform 23 supporting chair in the frame 22 of top.
Four carriages comprise the first carriage 12, second carriage 17, the 3rd carriage 18 and the 4th carriage 19 from top to bottom, 4th carriage 19 is connected as a single entity by two connecting rods 20 with underframe 32, first carriage 12 crown center is provided with cylinder supports bar 14, tension cylinder 3 is vertically arranged in the middle part of cylinder supports bar 14, the piston rod of tension cylinder 3, is equipped with reinforcement 13 between the first carriage 12 and the first column 11, between the 4th carriage 19 and the first column 11 down.
The piston rod end of tension cylinder 3 is connected with balancing weight 15 with two load-bearing chains 7 by a counterbalance weight 8, and two load-bearing chain 7 tops connect bottom counterbalance weight 8, connect balancing weight 15 top bottom two load-bearing chains 7.
Two tension support bar 4 tops are fixed on inside the second carriage 17, are fixed on underframe 32 side bottom two tension support bars 4, lean against outside the 3rd carriage 18 in the middle part of two tension support bars 4.
Upper take-up pulley 5 is many rings wheel, and it is fixed between two tension support bars 4 by two upper joint sleeves 9, and lower take-up pulley 6 is monocycle wheel, and it is fixed between two tension support bars 4 by two lower joint sleeves 10.
Be provided with supporting traverse in the middle part of the frame 22 of top, be provided with lower support crossbeam 33 in the middle part of underframe 32, be rotationally connected by bearing pin and upper supporting traverse in the middle part of turnover platform 23.
Be provided with screw mandrel 25 and feed screw nut 26 outside lower support crossbeam 33 and underframe 32, feed screw nut 26 is connected with a push rod 24, is fixed on feed screw nut 26 bottom push rod 24, push rod 24 top is fixed on turnover platform 23 1 side bottom.
Screw mandrel 25 is connected respectively with outside lower support crossbeam 33 and underframe 32 by two bearings 27, and screw mandrel 25 outboard end is provided with wind 28.
Turnover platform 23 crown center is provided with two groups of chair fixed mounts, often organizes chair fixed mount and comprises two standing screws, 30, two fixed cross beams 29 and two clamp nuts 31.
Turnover platform switching process in the present invention: operator rotates clockwise wind, screw mandrel rotates, and drives feed screw nut to move inward, push rod is slowly tilted laterally, thus turnover platform is overturn downwards; Operator rotates counterclockwise wind, and screw mandrel rotates, and drives feed screw nut outwards movement, makes push rod slowly jack-up to the inside, thus turnover platform is upwards overturn.
A method of testing for chair back crushing resistance and fatigability proving installation, comprises the steps:
1) be first fixed in turnover platform by bottom chair by two groups of chair fixed mounts, tensioning chain one end is fixed on the chair back, on seats, put some balancing weights simultaneously;
2) start tension cylinder, tension cylinder stretches out piston rod, and balancing weight is sagging, pulls tensioning chain, and tensioning chain pulls the chair back to press down;
3) strain cylinder and regain piston rod, balancing weight promotes, and tensioning chain rises, and the chair back resets, and completes a circulation, completes above-mentioned circulation more than 10,000 times;
Can overturn according to demand in described step 1) turnover platform adjustment draw the angle of the chair back.
The present invention can configure PLC Automatic Control voluntarily according to test cabinet condition and testing requirement, also can pass through gauge tap semiautomatic control.
The present invention strains support and supporting bracket is provided separately and cooperatively interacts, and adopt tension cylinder, balancing weight, take-up pulley to coordinate tensioning chain to draw the chair back, make stability in its test process high, test result is accurately reliable simultaneously; The setting of turnover platform simultaneously, makes it can be used for the test of various model chair.
Claims (10)
1. chair back crushing resistance and a fatigability proving installation, is characterized in that: it tensioning mechanism comprising supporting bracket, tension support and be arranged on tension support,
Some carriages that described tension support comprises four first columns and is arranged between four first columns,
Described tensioning mechanism comprises the tension cylinder being arranged on tension cradle top, the balancing weight be connected on tension cylinder piston rod, the two tension support bars being arranged on balancing weight side and the upper take-up pulley be arranged between two tension support bars and lower take-up pulley, described balancing weight is connected with tensioning chain, and described tensioning chain is walked around take-up pulley respectively and is connected the chair back with lower take-up pulley;
Described supporting bracket comprises some second columns and the top frame be arranged between the second column and underframe, is provided with the turnover platform supporting chair in the frame of described top.
2. a kind of chair back crushing resistance according to claim 1 and fatigability proving installation, it is characterized in that: described carriage comprises the first carriage, the second carriage, the 3rd carriage and the 4th carriage from top to bottom, described 4th carriage and underframe are connected as a single entity by two connecting rods, described first carriage crown center is provided with cylinder supports bar, described tension cylinder is vertically arranged in the middle part of cylinder supports bar, the piston rod of tension cylinder, is equipped with reinforcement between described first carriage and the first column, between the 4th carriage and the first column down.
3. a kind of chair back crushing resistance according to claim 2 and fatigability proving installation, it is characterized in that: the piston rod end of tension cylinder is connected with balancing weight with two load-bearing chains by a counterbalance weight, two load-bearing chain tops connect bottom counterbalance weight, connect balancing weight top bottom two load-bearing chains.
4. a kind of chair back crushing resistance according to claim 2 and fatigability proving installation, it is characterized in that: two tension support bar top are fixed on inside the second carriage, be fixed on underframe side bottom two tension support bars, lean against outside the 3rd carriage in the middle part of two tension support bars.
5. a kind of chair back crushing resistance according to claim 4 and fatigability proving installation, it is characterized in that: described upper take-up pulley is many rings wheel, it is fixed between two tension support bars by two upper joint sleeves, described lower take-up pulley is monocycle wheel, and it is fixed between two tension support bars by two lower joint sleeves.
6. a kind of chair back crushing resistance according to claim 1 and fatigability proving installation, is characterized in that: be provided with supporting traverse in the middle part of the frame of described top, be provided with lower support crossbeam in the middle part of described underframe, is rotationally connected in the middle part of described turnover platform with upper supporting traverse.
7. a kind of chair back crushing resistance according to claim 6 and fatigability proving installation, it is characterized in that: outside described lower support crossbeam and underframe, be provided with screw mandrel and feed screw nut, described feed screw nut is connected with a push rod, be fixed on bottom described push rod on feed screw nut, push rod top is fixed on turnover platform one side bottom.
8. a kind of chair back crushing resistance according to claim 7 and fatigability proving installation, is characterized in that: described screw mandrel is connected respectively with outside lower support crossbeam and underframe by two bearings, and screw mandrel outboard end is provided with wind.
9. a kind of chair back crushing resistance according to claim 7 and fatigability proving installation, it is characterized in that: described turnover platform crown center is provided with two groups of chair fixed mounts, often organize chair fixed mount and comprise two standing screws, two fixed cross beams and two clamp nuts.
10. the method for testing of a kind of chair back crushing resistance according to claim 9 and fatigability proving installation, is characterized in that: it comprises the steps:
1) be first fixed in turnover platform by bottom chair by two groups of chair fixed mounts, tensioning chain one end is fixed on the chair back, on seats, put some balancing weights simultaneously;
2) start tension cylinder, tension cylinder stretches out piston rod, and balancing weight is sagging, pulls tensioning chain, and tensioning chain pulls the chair back to press down;
3) strain cylinder and regain piston rod, balancing weight promotes, and tensioning chain rises, and the chair back resets, and completes a circulation, completes above-mentioned circulation more than 10,000 times;
Can overturn according to demand in described step 1) turnover platform adjustment draw the angle of the chair back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047106.1A CN104634599B (en) | 2015-01-29 | 2015-01-29 | Chair back pressure resistance and fatigue tester and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047106.1A CN104634599B (en) | 2015-01-29 | 2015-01-29 | Chair back pressure resistance and fatigue tester and test method thereof |
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| Publication Number | Publication Date |
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| CN104634599A true CN104634599A (en) | 2015-05-20 |
| CN104634599B CN104634599B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510047106.1A Active CN104634599B (en) | 2015-01-29 | 2015-01-29 | Chair back pressure resistance and fatigue tester and test method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686917A (en) * | 2019-11-08 | 2020-01-14 | 广东产品质量监督检验研究院（国家质量技术监督局广州电气安全检验所、广东省试验认证研究院、华安实验室） | Rocking chair mechanical property testing device and testing method thereof |
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| JPS6058526A (en) * | 1983-09-12 | 1985-04-04 | Tachikawa Spring Co Ltd | Endurance testing apparatus in getting on and off vehicle seat and the like |
| KR0153887B1 (en) * | 1995-12-14 | 1998-12-01 | 김태구 | Headrest tester for automobiles |
| CN201993280U (en) * | 2011-02-10 | 2011-09-28 | 杭州炬日电器有限公司 | Integral furniture testing equipment |
| CN201993216U (en) * | 2011-03-31 | 2011-09-28 | 东莞市恒宇仪器有限公司 | Repeat fatigue-testing machine for beach chair backrest |
| CN202582887U (en) * | 2012-04-19 | 2012-12-05 | 贺冰 | Novel chair-back endurance test machine |
| CN204405345U (en) * | 2015-01-29 | 2015-06-17 | 嘉瑞福(浙江)家具有限公司 | A kind of chair back crushing resistance and fatigability proving installation |
-
2015
- 2015-01-29 CN CN201510047106.1A patent/CN104634599B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058526A (en) * | 1983-09-12 | 1985-04-04 | Tachikawa Spring Co Ltd | Endurance testing apparatus in getting on and off vehicle seat and the like |
| KR0153887B1 (en) * | 1995-12-14 | 1998-12-01 | 김태구 | Headrest tester for automobiles |
| CN201993280U (en) * | 2011-02-10 | 2011-09-28 | 杭州炬日电器有限公司 | Integral furniture testing equipment |
| CN201993216U (en) * | 2011-03-31 | 2011-09-28 | 东莞市恒宇仪器有限公司 | Repeat fatigue-testing machine for beach chair backrest |
| CN202582887U (en) * | 2012-04-19 | 2012-12-05 | 贺冰 | Novel chair-back endurance test machine |
| CN204405345U (en) * | 2015-01-29 | 2015-06-17 | 嘉瑞福(浙江)家具有限公司 | A kind of chair back crushing resistance and fatigability proving installation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686917A (en) * | 2019-11-08 | 2020-01-14 | 广东产品质量监督检验研究院（国家质量技术监督局广州电气安全检验所、广东省试验认证研究院、华安实验室） | Rocking chair mechanical property testing device and testing method thereof |
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| CN104634599B (en) | 2017-05-24 |
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Denomination of invention: A testing device for compression and fatigue of chair back and its testing method Effective date of registration: 20210528 Granted publication date: 20170524 Pledgee: Development Zone sub branch of Zhejiang Anji Rural Commercial Bank Co., Ltd Pledgor: GLOBAL FURNITURE (ZHEJIANG) Co.,Ltd. Registration number: Y2021330000485 |
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