CN105147270A - Novel mechanical blood pressure meter movement - Google Patents
Novel mechanical blood pressure meter movement Download PDFInfo
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- CN105147270A CN105147270A CN201510553909.4A CN201510553909A CN105147270A CN 105147270 A CN105147270 A CN 105147270A CN 201510553909 A CN201510553909 A CN 201510553909A CN 105147270 A CN105147270 A CN 105147270A
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- gear
- buckle
- box cover
- lower casing
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Abstract
The invention relates to a novel mechanical blood pressure meter movement. The movement is characterized in that the blood pressure meter movement is composed of a lower box cover, an ejector pin, a gear assembly, a pointer shaft, a torsion spring and an upper box cover. The ejector pin is arranged on the gear assembly, the pointer shaft is sleeved with the torsion spring, and the gear assembly is arranged between the upper box cover and the lower box cover which are fixed together through a buckle structure. According to the technical scheme, the overall structural design is ingenious, and the structure is compact and simple. Main parts of the movement are made of plastic good in forming performance. The mechanical blood pressure meter movement is optimized through the brand new design suitable for characteristics of the plastic parts, production efficiency is greatly improved, and performance is more stable.
Description
Technical field
The present invention relates to a kind of sphygomanometers movement, particularly a kind of novel mechanical type sphygomanometers movement, belongs to technical field of medical equipment.
Background technology
Along with expanding economy and social progress, improving constantly of common people's health perception, the enhancing of self health consciousness, the requirement of people to aspects such as living environment, individual health care, medical treatment is more and more higher, sphygomanometers are a kind of mechanical sphygomanometers belonging to the indirect method of measurement, it is easy to use, quick, is day by day used widely.
Mechanical type sphygomanometers are a kind of medical apparatus and instruments measuring human blood-pressure coordinating stethoscope to use, and form blood pressure gauge outfit by a few part of movement, bellows, dial plate, pointer and watchcase.The gas pressure that wherein bellows will be measured changes mechanical displacement into, and movement changes the mechanical displacement that bellows produces the mechanical rotation of gear shaft into, is fixedly mounted on pressure scale that the pointer on gear shaft prints on dial plate indicating gas.Movement, bellows and dial plate are installed in watchcase, and mechanical type sphygomanometers have the advantages such as structure is simple, easy to maintenance, reliability is high, low price, are widely used.
The movement be arranged in watchcase is the core component of mechanical type sphygomanometers, movement changes the mechanical displacement that bellows produces the mechanical rotation of gear shaft into, traditional movement all adopts metal parts, and the processing technique of metal parts is of a great variety, part shape is subject to processing technique restriction, cause number of parts many, production efficiency is low, manufacturing cost is high, displacement-rotation transformation efficiency is low, and movement assembling is complicated, and movement opens wide the obstacle not possessing anti-dust performance etc. and be difficult to overcome, therefore, a kind of new technical scheme of exigence solves this technical problem.
Summary of the invention
The present invention is just for the technical problem existed in prior art, and provide a kind of novel mechanical type sphygomanometers, this technical scheme overall construction design is ingenious, compact conformation, simple.The plastic material that movement part mainly adopts processability good, take the brand-new design of applicable plastic part feature to optimize the movement of mechanical type sphygomanometers, production efficiency improves greatly, and performance is more stable.
To achieve these goals, technical scheme of the present invention is as follows: novel mechanical type sphygomanometers movement, is characterized in that, described sphygomanometers movement is by lower casing, thimble, gear assembly, needle pivot, torsion spring, upper box cover forms, described thimble is arranged on gear assembly, described torsion spring set is on needle pivot, and described gear assembly is arranged between upper box cover and lower casing, and described upper box cover and lower casing are fixed together by buckle structure.This technical scheme compact conformation, major part is molded, and technique assembling is more simple, and properties of product are more stable.
As a modification of the present invention, described gear assembly comprises sector gear, duplicate gear, pinion, and the pinion end of sector gear and duplicate gear is meshed, and the gear wheel end of duplicate gear and pinion are meshed, and pinion and needle pivot press accessory and connect.In mechanical sphygomanometers, Plastic Gear Transmission is have employed first in this technical scheme, and this Plastic Gear Transmission has secondary gear transmission, namely the pinion end of sector gear and duplicate gear is meshed, the gear wheel end of duplicate gear and pinion are meshed, and make the displacement needing bellows to provide reduce half.When bellows is inflated, thimble, under the drive of bellows displacement, along the centre of sphere direction displacement of the thimble other end, thus drives the rotation of sector gear by the spherical pair of sector gear; The rotation of sector gear drives duplicate gear to rotate, and duplicate gear drives the rotation of pinion and needle pivot, and makes torsion spring store power; When bellows displacement disappears, torsion spring release elastic force, makes needle pivot, pinion, duplicate gear, sector gear and thimble get back to original equilibrium position.
As a modification of the present invention, one end of described thimble is set to spheric end, and the bulb end of described thimble and sector gear are coordinated by spherical pair and are provided with buckle and prevent from coming off, and the other end of thimble contacts with the bellows mobile terminal of mechanical blood pressure gauge outfit and is connected.Adopt spherical pair to connect the processing technique that not only simplify thimble, only need automatic turning to process, also simplify assembly technology.Another benefit adopting spherical pair to connect it is possible to the accuracy of manufacture requirement reduced thimble and other parts.
As a modification of the present invention, described upper box cover and lower casing are provided with sector gear axis hole, duplicate gear axis hole and pointer axis hole, are used to respectively sector gear, duplicate gear and pinion are installed.
As a modification of the present invention, the two ends of described lower casing are symmetrically arranged with installing hole, described lower casing are also provided with locating hole, first kind buckle and Equations of The Second Kind buckle.
As a modification of the present invention, described upper box cover is provided with the 3rd class buckle, the 4th class buckle and alignment pin, wherein first kind buckle and the 3rd class buckle cooperatively interact, Equations of The Second Kind buckle and the 4th class buckle cooperatively interact, described alignment pin inserts locating hole, realizes upper box cover and is fixedly connected with lower casing.
As a modification of the present invention, described lower casing, lower casing, sector gear, duplicate gear, pinion is all adopt plastic material.Wherein lower casing, lower casing adopt engineering plastics as ABS, sector gear, duplicate gear, and pinion is all adopt the plastic materials such as polyformaldehyde POM, polyamide and nylon-PA.
As a modification of the present invention, the centre of sphere of described spherical pair to the distance of sector gear center of rotation 1.5 ~ 2.5, between.The displacement coupling that this distance needs and bellows provides, so that mechanical type sphygomanometers pointer obtains suitable range.
As a modification of the present invention, the straight flange of described sector gear overlaps with the center of rotation of sector gear.Reduce to minimum with the power making bellows promote required for gear rotation, thus reduce the harmful effect to measuring system.
As a modification of the present invention, described needle pivot and thimble adopt brass material, and described torsion spring adopts steel material.Needle pivot and thimble adopt brass material to have good mechanical performance, easy turnery processing, and not oxidizable.Spring steel has good elasticity, is applicable to doing torsion spring.Consider that spring steel is easily oxidized in addition, adopting the good rustless steel of elasticity to do torsion spring is better selection.
Relative to prior art, advantage of the present invention is as follows: 1) overall construction design of the present invention is ingenious, practical, convenient disassembly; 2) this movement has simplified number of parts, reduces cost, decreases manufacturing procedure number, changing direct injection mo(u)lding into, and improve production efficiency by originally needing to carry out the mach parts of metal; 3) this movement is integrated into injection mo(u)lding together due to a large amount of parts, drastically reduce the area number of parts, simplifies assembling chain, makes assembly technology become more simple, effectively reduces the source of trouble; 4) this movement adopts secondary gear transmission, makes the displacement needing bellows to provide reduce half; 5) the upper and lower lid structure of new movement has dust-proof effect.
Accompanying drawing explanation
Fig. 1 is the overall sectional view of the present invention;
Fig. 2 is lower casing structural representation;
Fig. 3 is upper box cover structural representation;
Fig. 4 is sector gear and push rod connection layout;
In figure: 1, lower casing, 2, thimble, 3, sector gear, 4, duplicate gear, 5, pinion, 6, needle pivot, 7, torsion spring, 8, upper box cover, 9, sector gear axis hole, 10, duplicate gear axis hole, 11, pointer axis hole, 12, installing hole, 13, locating hole, 14, first kind buckle, 15, Equations of The Second Kind buckle, 16, the 3rd class buckle, 17, alignment pin, the 18, the 4th class buckle, 19, spherical pair, 20, buckle, 21, the straight flange of sector gear.
Detailed description of the invention
In order to strengthen, to understanding of the present invention and understanding, introducing further the present invention below in conjunction with the drawings and specific embodiments.
embodiment 1:
See Fig. 1, a kind of novel mechanical type sphygomanometers movement, described sphygomanometers movement is by lower casing 1, thimble 2, gear assembly, needle pivot 6, torsion spring 7, upper box cover 8 forms, described thimble 2 is arranged on gear assembly, described torsion spring 7 is enclosed within needle pivot, described gear assembly is arranged between upper box cover and lower casing, described upper box cover and lower casing are fixed together by buckle structure, described gear assembly comprises sector gear 3, duplicate gear 4, pinion 5, the pinion end of sector gear 3 and duplicate gear 4 is meshed, gear wheel end and the pinion 5 of duplicate gear 4 are meshed, pinion 5 and needle pivot 6 press accessory and connect.Plastic Gear Transmission is have employed first in this technical scheme, and this Plastic Gear Transmission has secondary gear transmission, namely the pinion end of sector gear 3 and duplicate gear 4 is meshed, and gear wheel end and the pinion 5 of duplicate gear 4 are meshed, and makes the displacement needing bellows to provide reduce half.When bellows is inflated, thimble 2, under the drive of bellows displacement, along the axis direction displacement of thimble 2, thus drives the rotation of sector gear 3 by the spherical pair of sector gear 3; The rotation of sector gear 3 drives duplicate gear 4 to rotate, and duplicate gear 4 drives the rotation of pinion 5 and needle pivot 6, and makes torsion spring 7 store power; When bellows displacement disappears, torsion spring 7 discharges elastic force, makes needle pivot 6, pinion 5, duplicate gear 4, sector gear 3 and thimble 2 get back to home position.This technical scheme compact conformation, the injection mo(u)lding together of whole part, technique assembling is more simple, and properties of product are more stable.
embodiment 2:
See Fig. 1, Fig. 4, as a modification of the present invention, one end of described thimble 2 is set to spheric end, and the bulb end of described thimble 2 and sector gear 3 are coordinated by spherical pair 19 and are provided with buckle and prevent from coming off, and the other end of thimble 2 contacts with the bellows mobile terminal of mechanical blood pressure gauge outfit and is connected.All the other structures are identical with embodiment 1 with advantage.
embodiment 3:
See Fig. 1, Fig. 3, as a modification of the present invention, described upper box cover 8 and lower casing 1 are provided with sector gear axis hole 9, duplicate gear axis hole 10 and pointer axis hole 11, are used to respectively sector gear 3, duplicate gear 4 and pinion 5 are installed.All the other structures are identical with embodiment 1 with advantage.
embodiment 4:
See Fig. 1, Fig. 2, Fig. 3, as a modification of the present invention, the two ends of described lower casing 8 are symmetrically arranged with installing hole 12, described lower casing is also provided with locating hole 13, first kind buckle 14 and Equations of The Second Kind buckle 15, the wherein two ends being arranged on lower casing of first kind buckle 14 symmetry, Equations of The Second Kind buckle 15 is arranged on the side of lower casing, described upper box cover is provided with the 3rd class buckle 16, 4th class buckle 18 and alignment pin 17, the wherein two ends being arranged on upper box cover of the 3rd class buckle 16 symmetry, 4th class buckle 18 is arranged on the side of lower casing, wherein first kind buckle 14 and the 3rd class buckle 16 cooperatively interact, Equations of The Second Kind buckle 15 and the 4th class buckle 18 cooperatively interact, by being provided with two pairs of first kind buckles 1 and Equations of The Second Kind buckle at the two ends of upper lower casing in this technical scheme, a pair the 3rd class buckles 16 are provided with in the side of upper lower casing, 4th class buckle 18, by working in coordination of three pairs of buckles, upper lower casing is more firm, it is more accurate to locate, described alignment pin 17 inserts locating hole 13, realize upper box cover 8 to be fixedly connected with lower casing 1.All the other structures are identical with embodiment 1 with advantage.
embodiment 5:
See Fig. 1, as a modification of the present invention, as a modification of the present invention, described lower casing 1, upper box cover 8, sector gear 3, duplicate gear 4, pinion 5 is all adopt plastic material.Wherein lower casing, lower casing adopt engineering plastics as ABS, sector gear, duplicate gear, and pinion is all adopt the plastic materials such as polyformaldehyde POM, polyamide and nylon-PA.These plastic items can single injection-molded, and assembly technology is more simple, and the performance of product is more stable.All the other structures are identical with embodiment 1 with advantage.
embodiment 6:
See Fig. 1, as a modification of the present invention, the centre of sphere of described spherical pair 19 to the distance of sector gear center of rotation between 1.5 ~ 2.5.The displacement coupling that this distance needs and bellows provides, so that mechanical type sphygomanometers pointer obtains suitable range.The straight flange 21 of described sector gear overlaps with the center of rotation of sector gear.Reduce to minimum with the power making bellows promote required for gear rotation, thus reduce the harmful effect to measuring system.All the other structures are identical with embodiment 1 with advantage.
embodiment 7:
See Fig. 1, as a modification of the present invention, described needle pivot and thimble adopt brass material, and described torsion spring adopts steel material.Needle pivot and thimble adopt brass material to have good mechanical performance, easy turnery processing, and not oxidizable.Spring steel has good elasticity, is applicable to doing torsion spring.Consider that spring steel is easily oxidized in addition, adopting the good rustless steel of elasticity to do torsion spring is better selection.All the other structures are identical with embodiment 1 with advantage.
Operation principle: see Fig. 1-Fig. 4, under the state of bellows unaerated, each parts of movement are in home position.When bellows is inflated, thimble 2, under the drive of bellows displacement, along the centre of sphere direction displacement of thimble 2 other end, thus drives the rotation of sector gear 3 by the spherical pair of sector gear 3; The rotation of sector gear 3 drives duplicate gear 4 to rotate, and duplicate gear 4 drives the rotation of pinion 5 and needle pivot 6, and makes torsion spring 7 store power; When bellows displacement disappears, torsion spring 7 discharges elastic force, makes needle pivot 6, pinion 5, duplicate gear 4, sector gear 3 and thimble 2 get back to home position.
At least one in technical characteristic described in embodiment 2,3,4,5,6,7 and embodiment 1,2,3 can also be combined to form new embodiment by the present invention.
It should be noted that above-described embodiment, be not used for limiting protection scope of the present invention, equivalents done on the basis of technique scheme or the alternative scope all falling into the claims in the present invention and protect.
Claims (10)
1. a novel mechanical type sphygomanometers movement, it is characterized in that, described sphygomanometers movement by lower casing, thimble, gear assembly, needle pivot, torsion spring, upper box cover forms, and described thimble is arranged on gear assembly, and described torsion spring set is on needle pivot, described gear assembly is arranged between upper box cover and lower casing, and described upper box cover and lower casing are fixed together by buckle structure.
2. novel mechanical type sphygomanometers movement according to claim 1, it is characterized in that, described gear assembly comprises sector gear, duplicate gear, pinion, the pinion end of sector gear and duplicate gear is meshed, and the gear wheel end of duplicate gear and pinion are meshed, and pinion and needle pivot press accessory and connect.
3. novel mechanical type sphygomanometers movement according to claim 2, it is characterized in that, one end of described thimble is set to spheric end, the bulb end of described thimble and sector gear are coordinated by spherical pair and are provided with buckle and prevent from coming off, and the other end of thimble contacts with the bellows mobile terminal of mechanical blood pressure gauge outfit and is connected.
4. novel mechanical type sphygomanometers movement according to claim 3, it is characterized in that, described upper box cover and lower casing are provided with sector gear axis hole, duplicate gear axis hole and pointer axis hole, are used to respectively sector gear, duplicate gear and pinion are installed.
5. novel mechanical type sphygomanometers movement according to claim 4, it is characterized in that, the two ends of described lower casing are symmetrically arranged with installing hole, described lower casing are also provided with locating hole, first kind buckle and Equations of The Second Kind buckle.
6. novel mechanical type sphygomanometers movement according to claim 5, it is characterized in that, described upper box cover is provided with the 3rd class buckle, the 4th class buckle and alignment pin, wherein first kind buckle and the 3rd class buckle cooperatively interact, Equations of The Second Kind buckle and the 4th class buckle cooperatively interact, described alignment pin inserts locating hole, realizes upper box cover and is fixedly connected with lower casing.
7. the novel mechanical type sphygomanometers movement according to claim 3 or 4 or 5, is characterized in that, described upper box cover, lower casing adopt engineering plastics, sector gear, duplicate gear, and pinion is all adopt polyformaldehyde or Maranyl.
8. novel mechanical type sphygomanometers movement according to claim 6, is characterized in that, the centre of sphere of described spherical pair to the distance of sector gear center of rotation between 1.5 ~ 2.5.
9. novel mechanical type sphygomanometers movement according to claim 8, it is characterized in that, the straight flange of described sector gear overlaps with the center of rotation of sector gear.
10. novel mechanical type sphygomanometers movement according to claim 9, is characterized in that, described needle pivot and thimble adopt brass material, and described torsion spring adopts steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553909.4A CN105147270B (en) | 2015-09-02 | 2015-09-02 | A kind of mechanical sphygomanometers machine core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553909.4A CN105147270B (en) | 2015-09-02 | 2015-09-02 | A kind of mechanical sphygomanometers machine core |
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| Publication Number | Publication Date |
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| CN105147270A true CN105147270A (en) | 2015-12-16 |
| CN105147270B CN105147270B (en) | 2019-01-01 |
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| CN201510553909.4A Active CN105147270B (en) | 2015-09-02 | 2015-09-02 | A kind of mechanical sphygomanometers machine core |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3056401A (en) * | 1961-01-10 | 1962-10-02 | Greenspan Donald | Sphygmomanometer |
| DE2429044A1 (en) * | 1974-06-18 | 1976-01-08 | Blasius Speidel | BLOOD PRESSURE MONITOR |
| US4128014A (en) * | 1976-12-14 | 1978-12-05 | Bristoline Inc. | Fine-adjusting arrangement for a sphygmomanometer |
| CN2699831Y (en) * | 2004-06-21 | 2005-05-18 | 潘福林 | Gauge outfit core of sphygmomanometer |
| CN201394013Y (en) * | 2009-04-13 | 2010-02-03 | 苏州日精仪器有限公司 | Pointer-type sphygmomanometer pressure drive device |
| CN201624648U (en) * | 2010-03-01 | 2010-11-10 | 苏州日精仪器有限公司 | Movement device for blood pressure gauge |
| CN102805619A (en) * | 2012-04-24 | 2012-12-05 | 鹿得医疗器械（南通）有限公司 | Novel handheld blood pressure gauge |
| CN203059672U (en) * | 2012-12-14 | 2013-07-17 | 鹿得医疗器械（南通）有限公司 | Machine core device of sphygmomanometer |
| CN104783770A (en) * | 2015-04-23 | 2015-07-22 | 江苏鹿得医疗电子股份有限公司 | Movement of mechanical sphygmomanometer for self-calibration production technology |
| CN205019044U (en) * | 2015-09-02 | 2016-02-10 | 江苏鹿得医疗电子股份有限公司 | Novel mechanical type sphygomanometers core |
-
2015
- 2015-09-02 CN CN201510553909.4A patent/CN105147270B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3056401A (en) * | 1961-01-10 | 1962-10-02 | Greenspan Donald | Sphygmomanometer |
| DE2429044A1 (en) * | 1974-06-18 | 1976-01-08 | Blasius Speidel | BLOOD PRESSURE MONITOR |
| US4128014A (en) * | 1976-12-14 | 1978-12-05 | Bristoline Inc. | Fine-adjusting arrangement for a sphygmomanometer |
| CN2699831Y (en) * | 2004-06-21 | 2005-05-18 | 潘福林 | Gauge outfit core of sphygmomanometer |
| CN201394013Y (en) * | 2009-04-13 | 2010-02-03 | 苏州日精仪器有限公司 | Pointer-type sphygmomanometer pressure drive device |
| CN201624648U (en) * | 2010-03-01 | 2010-11-10 | 苏州日精仪器有限公司 | Movement device for blood pressure gauge |
| CN102805619A (en) * | 2012-04-24 | 2012-12-05 | 鹿得医疗器械（南通）有限公司 | Novel handheld blood pressure gauge |
| CN203059672U (en) * | 2012-12-14 | 2013-07-17 | 鹿得医疗器械（南通）有限公司 | Machine core device of sphygmomanometer |
| CN104783770A (en) * | 2015-04-23 | 2015-07-22 | 江苏鹿得医疗电子股份有限公司 | Movement of mechanical sphygmomanometer for self-calibration production technology |
| CN205019044U (en) * | 2015-09-02 | 2016-02-10 | 江苏鹿得医疗电子股份有限公司 | Novel mechanical type sphygomanometers core |
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