CN2238425Y - Two-stage indicating spring balance - Google Patents
Two-stage indicating spring balance Download PDFInfo
- Publication number
- CN2238425Y CN2238425Y CN 95227682 CN95227682U CN2238425Y CN 2238425 Y CN2238425 Y CN 2238425Y CN 95227682 CN95227682 CN 95227682 CN 95227682 U CN95227682 U CN 95227682U CN 2238425 Y CN2238425 Y CN 2238425Y
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- kilogram
- gear
- scale
- mark
- fixed
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Abstract
The utility model relates to a two-stage indicating spring balance, which is provided with a rack bar and a gear transmission mechanism. The kilograms and the kilogram scores are respectively marked, and two pointers are respectively used for indicating. A balance mechanism is composed of a kilogram gear, a kilogram intermediate gear, a kilogram score gear and a kilogram score intermediate gear; the balance mechanism is in two-stage transmission. The elongation quantity of a weighing spring is twice amplified by gear transmission and a dial, the scales marked on the dial are subdivided, the scale spacing is enlarged, and the error of the weighing reading is below 10 g. The utility model has two structural forms of a crane scale and a bench scale, and has the characteristics of small volume, high precision, convenient carrying and convenient operation.
Description
The utility model relates to a kind of spring balance with tooth bar, gear drive.
The commercial spring scale scale of Shi Yonging is the one-level gear drive in the market, the spring gravitate produces linear extension and drives rack displacement when weighing, and then rack drives and the rotation of its meshed gears, on scale, indicate weight by the pointer that is fixed on the gear shaft.Amplify because the spring elongation only depends on the increase scale to carry out size, kilogram, kilogram mark merge scale, thereby make that the range number is numerous in addition, the scale division of scale is very little to be close with the pointer width, make the reading inconvenience of weighing, reading error very easily takes place, and the weighing reading is difficult to accurately.As eight kilograms of spring scale counter scales of more use on the present market, the scale calibration is 400 little lattice, and each little lattice is represented 20 grams, each little compartment is apart from being about 1 millimeter, and scale pointer width also is 1 millimeter, so the reading of weighing is difficult to accurately, and reading error takes place very easily.The scale value of each scale of scale is 20 grams, is undesirable by the existing relevant regulations of country.Moreover, existing spring balance, particularly spring scale counter scale with one-level tooth bar, gear drive, volume is big, carry inconvenience, is not easy to huckster and uses.
It is little, portable, easy to use that the purpose of this utility model provides a kind of volume, the accuracy of reading of weighing, meets the secondary indication spring balance with two-stage indication of the provisions of the relevant regulations issued by the State.
Secondary indication spring balance by casing, the cap that has transparent illiteracy plate, scale, pointer, include tooth bar, constitute with the driving gear of tooth bar engagement and the weigher structure of load bearing spring, pointer has kilogram reading pointer and kilogram mark reading pointer, and the kilogram of scale, kilogram mark be scale respectively.The weigher structure has fixed head, null setting, kilogram gear, kilogram Jie gear, kilogram mark gear, kilogram mark Jie gear, returns zero gear and weighing plate, and weighing plate is a forked type.Fixed head connects with null setting, and an end of two load-bearing springs is connected and fixed respectively at the both ends of fixed head, and its other end is connected and fixed respectively at two yoke ends of weighing plate.Tooth bar has the whole connecting lever that connects, and tooth bar turns ancon and weighing plate is hinged.Kilogram Jie gear, kilogram mark Jie's gear and driving gear are fixed on the same wheel shaft, kilogram gear and kilogram Jie gearing mesh, kilogram mark gear and kilogram mark Jie gearing mesh.Return zero gear the return hairspring is housed, return zero gear and kilogram mark gearing mesh.Null setting by with the whole support that is connected of casing, be bearing in the adjusting bolt that has knob on the support, with regulate that bolt thread cooperates be installed in swivel nut on the fixed head, be positioned at that to regulate the bolt both sides also symmetrical, be loaded on the backlash spring formation between support and fixed head.Kilogram reading pointer is fixed on kilogram gear shaft, and kilogram mark reading pointer is fixed on kilogram mark gear shaft, and moving 1000 grams of kilogram mark reading pointer revolution on scale indicate scale, and kilogram reading pointer rotates a kilogram scale on scale.
Further improving of secondary indication spring balance is that tooth bar connecting lever end is fixed with weight, so that make tooth bar, driving gear engagement well, guarantees the reliability of weigher structure action.
Secondary indication spring balance has the two-stage gear drive, the elongation of weighing spring is through gear drive and twice amplification of scale, kilogram, kilogram mark are distinguished scale in addition, distance thereby the scale value that makes scale reduces between scale strengthens, weighing indication, the accuracy of reading of weighing, and be difficult for taking place reading error.Each graduated scale value of kilogram fraction scale is 10 grams, and the spring balance of making meets the existing relevant regulations of country, and the scale volume is little, and is portable, can be made into steelyard according to different request for utilizations and also can be made into counter scale.
Accompanying drawing is embodiment of the present utility model, describes the utility model in detail below in conjunction with embodiment.
Fig. 1 is secondary indication Spring balance structural drawing.
Fig. 2 is the appearance assumption diagram of the secondary indication Spring balance of structure shown in Figure 1.
Fig. 3 is secondary indication spring scale counter scale structural drawing.(broken section)
As shown in Figure 1 and Figure 2, secondary indication Spring balance has casing (28), has the cap (29) of transparent illiteracy plate, scale (30) and drop handle (1) that kilogram scale and kilogram fraction scale are arranged, null setting by with the whole support (3) that is connected of casing, be bearing in the adjusting bolt (27) that has knob (2) on the support, with regulate the fixed head that is installed in the weigher structure (5) that bolt thread cooperates on swivel nut (7) and be loaded on support and fixed head between also symmetrical backlash spring (4), (26) formation of an adjusting bolt both sides respectively.Load bearing spring (8), (23) one ends are connected in the both ends of fixed head respectively by hook plate (6), (25), and the two spring other ends are fixedly connected on two yoke ends of forked type weighing plate (17).Forked type weighing plate fork handle end stretches out outside the casing, and the hook of weighing (15) is hooked on the fork handle end.
Tooth bar (18) has the whole connecting lever that connects, and the connecting lever end is fixed with weight (13), makes the good reliable in action that guarantees the weigher structure of tooth bar and driving gear (20) engagement, and tooth bar turns ancon and is hinged on the forked type weighing plate by hinge.Kilogram Jie's gear (19), kilogram mark Jie's gear (21) are fixed on the same wheel shaft with driving gear, kilogram gear (12) and kilogram Jie gearing mesh, kilogram mark gear (22) and kilogram mark Jie gearing mesh.The kilogram gear is 1: 1 with kilogram Jie's gearing mesh gear ratio, and kilogram mark gear is 1: 10 with kilogram mark Jie gearing mesh gear ratio, and a zero gear (9) of returning of return hairspring (24) and a kilogram mark gearing mesh are housed.Driving gear wheel shaft, kilogram gear hub, kilogram mark gear hub, time zero gear hub are bearing on forward and backward installing plate (10), (11), kilogram reading pointer (31) is fixed on kilogram gear shaft, kilogram mark reading pointer is fixed on kilogram mark gear shaft, kilogram mark reading pointer rotates 360 ° on scale, promptly 1000 restrain scales, a kilogram reading pointer rotates 36 ° of i.e. kilogram scales on scale.Bottom of shell is fixed with backstop limited post (14), (16), and limited post cooperates with forked type weighing plate backstop and scale damaged to prevent load bearing spring over stretch generation permanent strain weighing plate is spacing.
Secondary is indicated the spring scale counter scale as shown in Figure 3, and its weigher structure and steelyard are identical.The casing of scale (36) has base made in one piece (37), leads heavy lever (38) by the fork handle client link of cutting edge supporting structure (39) with the forked type weighing plate.Pallet (33) bearing support vertical rod (34) is stretched into the casing bottom by the orienting sleeve (35) that is installed on the casing, and its end is with to lead heavy lever end hinged, thereby constitutes the spring scale counter scale.
Claims (2)
1, a kind of secondary indication spring balance, by casing, the cap that has transparent illiteracy plate, scale, pointer, include tooth bar, constitute with the driving gear of its engagement and the weigher structure of load bearing spring formation, it is characterized in that said pointer has kilogram reading pointer and kilogram mark pointer, the kilogram of scale, the kilogram mark is scale respectively, said weigher structure has fixed head, null setting, the kilogram gear, kilogram Jie gear, kilogram mark gear, kilogram mark Jie gear, return zero gear and weighing plate, weighing plate is a forked type, fixed head connects with null setting, one end of two load-bearing springs is connected and fixed respectively at the both ends of fixed head, its other end is connected and fixed respectively at two yoke ends of weighing plate, tooth bar has the whole connecting lever that connects, tooth bar turns ancon and weighing plate is hinged, kilogram Jie gear, kilogram mark Jie's gear and driving gear are fixed on the same wheel shaft, kilogram gear and kilogram Jie gearing mesh, kilogram mark gear and kilogram mark Jie gearing mesh, return zero gear the return hairspring is housed, return zero gear and kilogram mark gearing mesh, null setting is by the support that is connected with casing integral body, be bearing in the adjusting bolt that has knob on the support, with the swivel nut on the fixed head of being installed in of regulating that bolt thread cooperates, being positioned at the backlash spring that is loaded between support and fixed head of regulating bolt both sides and symmetry constitutes, kilogram reading pointer is fixed on kilogram gear shaft, kilogram mark reading pointer is fixed on kilogram mark gear shaft, and kilogram mark reading pointer indicates scale kilogram reading pointer at moving 1000 grams of revolution on the scale and rotate a kilogram scale on scale.
2, by described two utmost points indication of claim 1 spring balance, it is characterized in that said tooth bar connecting lever end is fixed with weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227682 CN2238425Y (en) | 1995-12-14 | 1995-12-14 | Two-stage indicating spring balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227682 CN2238425Y (en) | 1995-12-14 | 1995-12-14 | Two-stage indicating spring balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2238425Y true CN2238425Y (en) | 1996-10-23 |
Family
ID=33873463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227682 Expired - Fee Related CN2238425Y (en) | 1995-12-14 | 1995-12-14 | Two-stage indicating spring balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2238425Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786147A (en) * | 2018-06-27 | 2018-11-13 | 广东高乐玩具股份有限公司 | A kind of toy weighing device of Anti-inclining |
-
1995
- 1995-12-14 CN CN 95227682 patent/CN2238425Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786147A (en) * | 2018-06-27 | 2018-11-13 | 广东高乐玩具股份有限公司 | A kind of toy weighing device of Anti-inclining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |