CN2095411U - Spring balance with double indicator graduated disc - Google Patents
Spring balance with double indicator graduated disc Download PDFInfo
- Publication number
- CN2095411U CN2095411U CN 91211340 CN91211340U CN2095411U CN 2095411 U CN2095411 U CN 2095411U CN 91211340 CN91211340 CN 91211340 CN 91211340 U CN91211340 U CN 91211340U CN 2095411 U CN2095411 U CN 2095411U
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- gear
- amplification
- spring
- amplify
- scale
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Abstract
The utility model relates to a spring balance with a double-indicator graduated disc, which relates to a weighing instrument. The purpose of the spring balance with a double-indicator graduated disc is in that a new technical proposal which overcomes the defect that the existing spring balances with a graduated disc have insufficient scale subdivision, coarse weighing and low precision is provided. The scheme is characterized in that a weighing plate is arranged between a weighing spring and a balance hook, and an amplifying rack gear is fixed on the weighing plate, and is mutually engaged with an amplifying gear set. The primary gear of the amplifying gear set is connected with a ten-bit pointer, and the final gear of the amplifying gear set is connected with a bit pointer; the double-pointer indication is formed, and the measuring range is expanded; a measuring range and zero adjusting mechanism is arranged to calibrate. The scheme can ensure the sensing quantity and the precision of the spring balance with a graduated disc to be enhanced to millesimal level, and the utility model can become a weighing instrument which can satisfy the practical requirements.
Description
The utility model relates to the weighing utensil, especially the scale spring balance.
Spring balance is a kind of portable comparatively easily weighing apparatus, the linear staff spring balance that the past is commonly used, and limited because of the weight sensing spring tensile elongation, scale label can not segment, so reading is rough, has limited weighing precision.For improving reading accuracy, people are modified into the circular arc scale with linear staff and constitute the scale spring balance, have increased the effective length of scale.Mostly the structure of existing scale spring balance is to install additional a tooth bar between weight sensing spring and steelyard hook, by wheel and rack engagement and drive pointer indication reading.Though this scale spring balance improves than linear staff spring balance reading accuracy, but still do not solve restriction segmentation scale and the rough defective of weighing reading.Thereby weighing precision does not reach requirement of actual application, and is particularly particularly remarkable to the weighing of wide range.
The purpose of this utility model, being to keep former scale spring balance volume urinates in carrying, reading is clear, advantage easy to use, and it is not enough to overcome the scale segmentation that exists in the prior art, the defective that the weighing value is rough, precision is low, and provide a kind of weighing precision higher, clear reading, accurately is easy to carry, the new solution of two pointer scale spring balances easy to use.
The technical program is achieved in that the crosspointer scale spring balance of being made up of case, weight sensing spring, pointer, scale and steelyard hook etc. mainly, its special character is that the frame shape weighing plate is housed between weight sensing spring and steelyard hook, and the side in framework is equipped with the amplification tooth bar; What be meshed with the amplification tooth bar is the amplification gear 9 that amplifies in the gear set, and the central shaft that amplifies gear 9 is connecting ten bit pointers, is removable fixedly connected between them; The final stage amplification gear 8 that amplifies in the gear set is connecting a bit pointer, also is removable fixedly connected between them.Technical characterstic also has more specifically, aforesaid amplification gear set is by amplifying gear 9 and amplifying gear 10 coaxial fixedlying connected, amplify gear 10 and be meshed, amplify coaxial fixedly connected the amplification gear 16 of gear 15, amplify gear 16 formation that is meshed with amplification gear 8 with amplifying gear 15.Coaxial fixedly connected amplification gear 9 and 10 is with to amplify gear 8 coaxial, amplify gear 9 and 10 with its central shaft 11, and be clearance fit between amplification gear 8 and the central shaft 11 and be connected.In addition, rotating zeroing fine-tuning nut 1 is housed on the case top, the stationary shaft 14 that spins with external thread and garden post spiral stretching weight sensing spring 13 in the fine-tuning nut 1 scalable case makes its upper and lower displacement adjust zero point.
Compare with the scale spring balance of prior art by the crosspointer scale spring balance that technique scheme constitutes, because adopting the amplification gear set to carry out displacement amplifies, indicate position and ten weighing scales respectively with crosspointer again, thus broadening range, make accuracy of reading, clear, convenient.According to the embodiment that provides, it is the per mille of nominal weighing range that the technical program can reach metering scale minimum scale.As seen with regard to the sensibility reciprocal and precision of weighing utensil performance requirement, the technical program has all surpassed prior art, has satisfied the needs of practical application, and its advantage and effect are tangible.
Below accompanying drawing is explained:
Fig. 1 is the forward synoptic diagram of the technical program embodiment;
Fig. 2 looks cross-sectional schematic for the left side of Fig. 1;
Fig. 3 is the backsight cross-sectional schematic of Fig. 1.
Now by specific embodiment the technical program is further described in conjunction with the accompanying drawings.Present embodiment is to amplify gear set and indicating mechanism by two cover micrometers, but the crosspointer scale spring balance of two sides observation.With garden, cross section, garden post spiral stretching weight sensing spring 13, weighing plate 12 and case 2, individual bit pointer 3, ten bit pointers 4, scale 5, compositions such as scale outer cover 6 and steelyard hook 7.The technical program weight sensing spring 13 and and steelyard hook 7 between frame shape weighing plate 12 is housed, and the side in weighing plate 12 frameworks is being fixed amplification tooth bar 17, elementary amplification gear 9 in amplifying tooth bar 17 and amplifying gear set is meshed, and the central shaft 11 that amplifies gear 9 adopts removable fixedly connected mode to be connected with ten bit pointers 14; And the final stage in the amplification gear set is amplified gear 8, also is to adopt removable fixedly connected mode to be connected with a bit pointer 3, and is this removable fixedly connected, all can adopt the grafting form of transition fit.Amplify gear set in the present embodiment and adopt three grades of compositions, the used modulus of gear is 0.3.Concrete structure is that the amplification gear 9 of the number of teeth 20 is coaxial fixedlying connected with the amplification gear 10 of the number of teeth 60, amplifying 10 of gears is meshed with the amplification gear 15 of the number of teeth 24, amplify coaxial again fixedly connected the amplification gear 16 of the number of teeth 56 of gear 15, amplifying gear 16 mesh and amplifies gear 9 but the amplification gear 8 of the number of teeth 28 of not fixedlying connected, thus formation amplification gear set coaxial with 10.Coaxial fixedly connected amplification gear 9 and 10 and amplify gear 8 all on same central shaft 11, amplify in the present embodiment gear 9 and 10 with central shaft 11, be the connection of transition fit, amplifying between gear 8 and the central shaft 11 is being connected of clearance fit.In addition, a rotary fine-tuning nut 1 is housed on case 2 tops, the stationary shaft 14 that matches with the spiral internal diameter of weight sensing spring 13 with external thread in the fine-tuning nut 1 scalable case, rotate fine-tuning nut 1 and can adjust the fixed position of weight sensing spring 13, in order to adjust zero point by stationary shaft 14.Change the cooperation position of stationary shaft 14 threaded portions and weight sensing spring 13, can adjust effective stretching number of turns of weight sensing spring 13, carry out the adjustment of range.Thus, constituted the crosspointer scale spring balance that the technical program provided.Except that above-mentioned technology contents, the other technologies content that the technical program is related is the known technology of those of ordinary skill in this professional domain, so do not give unnecessary details.
Claims (4)
1, crosspointer scale spring balance mainly is to be made of case, weight sensing spring, pointer, scale and steelyard hook etc., and of the present utility model being characterised in that is equipped with the frame shape weighing plate between weight sensing spring and the steelyard hook, and the side in framework is equipped with the amplification tooth bar; What be meshed with the amplification tooth bar is the amplification gear 9 that amplifies in the gear set; The central shaft that amplifies gear 9 is connecting ten bit pointers, is removable fixedly connected between them; The final stage amplification gear 8 that amplifies in the gear set is connecting a bit pointer, is removable fixedly connected between them.
2, according to the described crosspointer scale of claim 1 spring balance, it is characterized in that described amplification gear set is to amplify gear 9 and amplify gear 10 coaxial fixedlying connected, amplifying gear 10 is meshed with amplification gear 15, amplify coaxial fixedly connected the amplification gear 16 of gear 15, amplify gear 16 and amplify gear 8 engagements and constitute.
3, according to the described crosspointer scale of claim 2 spring balance, it is characterized in that coaxial fixedly connected amplification gear 9 and 10 is with to amplify gear 8 coaxial, amplify gear 9 and be being connected of transition fit with its central shaft 11, be connected for clearance fit between amplification gear 8 and the central shaft 11 with 10.
4, according to the described scale spring balance of claim 1, it is characterized in that the case top is equipped with rotating zeroing fine-tuning nut 1, the stationary shaft 14 that spins with external thread and weight sensing spring 13 in the fine-tuning nut 1 scalable case makes its upper and lower displacement adjustment zero point.Change the cooperation position of stationary shaft 14 threaded portions and weight sensing spring 13, can adjust effective stretching number of turns of weight sensing spring 13, carry out the range adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211340 CN2095411U (en) | 1991-03-19 | 1991-03-19 | Spring balance with double indicator graduated disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211340 CN2095411U (en) | 1991-03-19 | 1991-03-19 | Spring balance with double indicator graduated disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2095411U true CN2095411U (en) | 1992-02-05 |
Family
ID=50211390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91211340 Withdrawn CN2095411U (en) | 1991-03-19 | 1991-03-19 | Spring balance with double indicator graduated disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2095411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390714A (en) * | 2021-04-13 | 2021-09-14 | 深圳市磐锋精密技术有限公司 | Voltage withstand test device for mobile phone display screen and application method thereof |
-
1991
- 1991-03-19 CN CN 91211340 patent/CN2095411U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390714A (en) * | 2021-04-13 | 2021-09-14 | 深圳市磐锋精密技术有限公司 | Voltage withstand test device for mobile phone display screen and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |