CN1004578B - Hollow metal measuring rod of steelyard - Google Patents
Hollow metal measuring rod of steelyard Download PDFInfo
- Publication number
- CN1004578B CN1004578B CN85109296.9A CN85109296A CN1004578B CN 1004578 B CN1004578 B CN 1004578B CN 85109296 A CN85109296 A CN 85109296A CN 1004578 B CN1004578 B CN 1004578B
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- China
- Prior art keywords
- lever
- measuring
- hollow
- steelyard
- supporting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The present invention relates to a hollow measuring lever of a metal lever scale, which belongs to the field of a measuring and testing appliance. The present invention is an indispensable measuring appliance for village fair trade and commercial service in China. An index lever of the hollow measuring lever of a metal lever scale is prepared from hollow anomalous pipe materials. The index lever and a weight supporting lever are glued together by an adhesive, and the plastic electrostatic painting is adopted to carry out surface treatment. The weight supporting rod adopts a novel structure by combining an inner knife and an outer knife, and the hollow metal lever scale is not influenced by humidity and temperature. The present invention has the advantages of invariable, no deformation, good accuracy and stability, good sensitivity and mobility, high strength, low cost, few parts and convenient mechanization production.
Description
Hollow metal measuring rod of steelyard is to belong to metering, Testing apparatus field.Present wood steelyard is still China's country trade, commerce services, family's weighing etc. and spreads all over town and country, wide application, and requirement is big, it relates to huge numbers of families, being directly connected to the common interests of country, collective and consumer, also being related to the prestige of commodity, is a kind of indispensable measurement instrument.Mention according to the report in the national steelyard meeting on September 2nd, 1, there is family more than 10,000 in national steelyard manufacturer, spreads all over twenties provinces in the whole nation, and eight kinds are arranged, and nearly ten million of tens model output all is a wood steelyard.Also do not produce hollow metal steelyard and hollow metal measuring rod of steelyard at present both at home and abroad.
The object of the invention is China's country trade, commerce services provide a kind of rational in infrastructure, good manufacturability, precision height, are convenient to mechanization production, parts are few, cost is low a kind of novel hollow metal measuring rod of steelyard.
The technology of the present invention content: the index lever of hollow metal measuring rod of steelyard is to adopt metal material to make shape tube on an empty stomach, and tail end is shut with the method for friction and Extrusion.The supporting rod of measuring stick is to adopt metal casting to form.Cutter formula in emphasing knife holds and adopts, its fulcrum pivot are held the outer cutter formula that adopts.Be to make with plate stamping.Fulcrum pivot is the pyramid type cutter hub, is convenient to assembling and adjustment.Emphasing knife is a rib type cutter hub, can use on the two sides.The index lever of measuring stick and supporting rod stick with glue agent and bond together.The plastic static spraying is all adopted in the supporting rod of measuring stick and the surface treatment of index lever.
The present invention is compared with the prior art: the measuring stick of existing wooden steelyard has suction temperature, flexible, and weight own changes, and produces weighing error, and correctness, stability, sensitivity, mobility are all bad.The selection of wood steelyard measuring stick is strict, and volume recoveries such as master bar pasture, Chinese larch and jujube wood are very low.Only reach 40～50%.Its head is made with copper coin, silver soldering or cast copper alloy, raw material sources difficulty, cost height.Hollow metal measuring rod of steelyard is not subjected to humidity and Temperature Influence, and invariant, non-modification, correctness, stability, sensitivity, mobility are all good.The raw material abundance can be saved a large amount of high-quality timber, copper material and silver solder.The plastic static spraying is adopted in the index lever of measuring stick and supporting rod surface treatment, and corrosion resistance and good is through twenty four hours long run test surface non-corroding.The antifriction performance is good, occurs coming off through the local fosterization film of friction test 10,000 subsurfaces.The supporting rod of measuring stick and index lever stick with glue agent and bond together, the intensity height.Through the tensile strength test, maximum intensity can reach 78.4 kilograms/every square centimeter; Minimum intensity can reach 53.5 kilograms/every square centimeter.The supporting rod of measuring stick adopts inside and outside cutter in conjunction with new structure, and is rational in infrastructure, good manufacturability, and parts are few, and cost is low, is convenient to mechanization production.
Description of drawings: Fig. 1 is the hollow metal measuring rod of steelyard synoptic diagram.A-A section among Fig. 1, B-B section represent that respectively the cutter and the cutter of interior cutter formula hold, the cutter and the cutter of outer cutter formula hold fit system and design feature thereof.Index lever 1, supporting rod 2, scale ring 3, scale carries 4, fulcrum pivot 5, fulcrum pivot holds 6, and emphasing knife holds 7, emphasing knife 8.
The optimum implementation example: the index lever 1 and the supporting rod 2 of measuring stick sticked with glue agent stick together, the tail end of index lever is shut with the method for friction and Extrusion.Emphasing knife is the prismatic cutter hub, and fulcrum pivot is tapered cutter hub.Two fulcrum tool bores and an emphasis tool bore are bored in requirement by fulcrum pivot, emphasing knife on the supporting rod of cast metal.Fulcrum pivot 5 is set in the fulcrum edge of a knife.Emphasing knife holds 7, is placed in the emphasis edge of a knife, and emphasing knife passes the hole that emphasing knife holds and is set in the emphasis tool bore.Fulcrum pivot holds 6 two ends that are installed in fulcrum pivot.The plastic static spraying is adopted in the index lever of measuring stick and the surface treatment of supporting rod.Constitute a complete hollow metal measuring rod of steelyard through adjusting the back again.
Claims (3)
1, a kind of measuring rod of steelyard, it includes, and supporting rod, the scale of real abdomen are carried, fulcrum pivot, emphasing knife, it is characterized in that the index lever of measuring stick adopts metal material to make shape tube on an empty stomach, and tail end is shut with the friction and Extrusion method.
2,, it is characterized in that the index lever of measuring stick and supporting rod stick together with bonding agent according to claim 1.
3,, it is characterized in that the plastic static spraying is all adopted in the surface treatment of the index lever of measuring stick and supporting rod according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85109296.9A CN1004578B (en) | 1985-12-22 | 1985-12-22 | Hollow metal measuring rod of steelyard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85109296.9A CN1004578B (en) | 1985-12-22 | 1985-12-22 | Hollow metal measuring rod of steelyard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85109296A CN85109296A (en) | 1987-07-01 |
| CN1004578B true CN1004578B (en) | 1989-06-21 |
Family
ID=4796294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85109296.9A Expired CN1004578B (en) | 1985-12-22 | 1985-12-22 | Hollow metal measuring rod of steelyard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004578B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175592B (en) * | 2013-03-22 | 2015-08-12 | 中国计量学院 | Pseudo-classic precise double-measuring-ranbalance |
-
1985
- 1985-12-22 CN CN85109296.9A patent/CN1004578B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85109296A (en) | 1987-07-01 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |