CN101571439B - Memory pointer mechanism for oil-chargeable shock resistant pressure gauge - Google Patents
Memory pointer mechanism for oil-chargeable shock resistant pressure gauge Download PDFInfo
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- CN101571439B CN101571439B CN2009100270245A CN200910027024A CN101571439B CN 101571439 B CN101571439 B CN 101571439B CN 2009100270245 A CN2009100270245 A CN 2009100270245A CN 200910027024 A CN200910027024 A CN 200910027024A CN 101571439 B CN101571439 B CN 101571439B
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Abstract
The invention discloses a memory pointer mechanism for an oil-chargeable shock resistant pressure gauge, which is characterized by comprising a rotating assembly, a sealing assembly and a hand wheel, wherein the rotating assembly comprises a driven needle, a needle cap, a shifting needle, a balancing weight and a needle shaft, and the needle cap and the needle shaft are riveted at the middle partof the driven needle, while the shifting needle and the balancing weight are fixed at two ends of the driven needle; the sealing assembly comprises a pressure gauge plastic part, a base, a needle sleeve and a shifting needle shaft, a first seal is formed between the base and the pressure gauge plastic part, a second seal is formed between the needle sleeve and the base, and a third seal is formedbetween the shifting needle shaft and the needle sleeve. The memory pointer mechanism can automatically memorize the maximum value of the measured pressure and reduce the labor intensity of an observer, and simultaneously the memory pointer mechanism has good sealability, prevents liquid leakage in the oil-chargeable pressure gauge, satisfies the sanitation and environmental protection requirements and plays a role in shock resistance; besides, the memory pointer mechanism is applicable to oil-chargeable shock resistant pressure gauges with different outer diameters and widens the applicationrange of the pressure gauges.
Description
Technical field
The present invention relates to a kind of tensimeter, relate to the memory pointer mechanism on the tensimeter in particular.
Background technology
Tensimeter is widely used in every field as a kind of industrial common measurement instruments.Common tensimeter comprises housing, pressure survey mechanism, index dial and tuning drive gear etc., the shortcoming of its existence is, when tensimeter after hours, tuning drive gear makes zero, be inconvenient to read force value and verification, therefore, a kind of tensimeter with memory pointer has appearred, but this kind tensimeter because the structural restriction of its memory pointer, making can't be oil-filled in itself the housing, cause the interior fittings poor lubricity, damage easily, serviceable life is shorter, in addition, common tensimeter does not have function of seismic resistance yet, under the situation that runs into measured medium pressure kick or process pipeline environmental vibration, common manometric pointer all can produce and rock, and makes pressure survey inaccurate, and can't know reading, because maximum range memory pointer mechanism only is applied to ordinarily manometer, and can't be applied to can oil-filled antidetonation tensimeter, so the range of application of build-up of pressure table is very narrow.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide and a kind ofly make that tensimeter internal part lubricity is good, long service life and have shockproof function, reading is accurate, and applied range can oil-filled anti-shock pressure meter memory pointer mechanism.
The present invention is achieved through the following technical solutions:
A kind of memory pointer mechanism that can oil-filled anti-shock pressure meter, it is characterized in that comprising runner assembly, seal assembly and handwheel, wherein runner assembly comprises passive pin, the pin cap, dial pin, balancing weight and needle shaft, above-mentioned pin cap and needle shaft are riveted on the two sides, front and back of passive pin middle part respectively, pull out pin and balancing weight and then be individually fixed in two ends of passive pin, the pin cap, pull out pin and balancing weight and be positioned at the same side of passive pin, above-mentioned seal assembly comprises the tensimeter plastic, base, needle guard and pull out needle shaft, one end of needle guard is with the above-mentioned needle shaft other end and is with and pulls out needle shaft, the top of needle shaft is provided with friction disc, and friction disc and pull out and be provided with spring between the needle shaft, base is positioned at the outside of needle guard, be slidingly connected with needle guard, base is provided with screw thread, cooperation by tapered cup nut and screw thread is installed on the tensimeter plastic base, and described handwheel is connected by screw retention with an end that pulls out needle shaft that stretches out needle guard.
Described base is provided with annular groove with the position that the tensimeter plastic contacts, and the big O type circle that is used for sealing between base and the tensimeter plastic is positioned at above-mentioned annular groove, forms the sealing of first road.
The position that described needle guard contacts with base is provided with annular groove, and the O type circle that is used for sealing between needle guard and the base is positioned at above-mentioned annular groove, forms the sealing of second road.
The described needle shaft top of pulling out is provided with annular groove, is used to pull out the little O type circle that seals between needle shaft and the needle guard and is positioned at above-mentioned annular groove, forms three seals.
The described needle shaft that pulls out is connected with the mode of needle guard by the screw thread precession, fixes by dog screw simultaneously.
The lower end of described needle guard and needle shaft contact portion is provided with groove, and the inside card has split washer.
The invention has the beneficial effects as follows: memory pointer of the present invention mechanism can remember automatically by the maximal value of measuring pressure, reduced observer's labour intensity, the present invention simultaneously has 3 roads and effectively seals, sealing property is very good, prevented the situation of fluid seepage in the oil dumped pressure gauge, satisfy the hygienic environment-protecting requirement, used the structure of passive pin, played shockproof function, in addition, the present invention is reasonable in design, has taken into full account the dynamic stationarity and the mnemonic of passive pin, reduced passive inhibition to greatest extent at the active pin, improved reliability of recording data, the related accessory size variable of memory pointer mechanism is moving, is applicable to the oil-filled anti-shock pressure meter that external diameter is different, widen manometric usable range, filled up the blank that oil-filled anti-shock pressure meter can't be provided with memory pointer mechanism.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Main Reference numeral implication is among the figure:
1, passive pin 2, pin cap 3, pull out pin 4, balancing weight 5, needle shaft
6, needle guard 7, needle stand 12, pull out needle shaft 15, handwheel
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 1 is the structural representation of one embodiment of the invention.
As shown in Figure 1: a kind of memory pointer mechanism that can oil-filled anti-shock pressure meter, it is characterized in that comprising runner assembly, seal assembly and handwheel 15, wherein runner assembly comprises passive pin 1, pin cap 2, dial pin 3, balancing weight 4 and needle shaft 5, above-mentioned pin cap 2 and needle shaft 5 are riveted on the two sides, front and back of passive pin 1 middle part respectively, pull out pin 3 and balancing weight 4 and then be individually fixed in two ends of passive pin 1, pin cap 2, pull out pin 3 and balancing weight 4 and be positioned at the same side of passive pin 1, above-mentioned seal assembly comprises tensimeter plastic 19, base 8, needle guard 6 and pull out needle shaft 12, one end of needle guard 6 is with above-mentioned needle shaft 5, the other end is with and pulls out needle shaft 12, the lower end that is enclosed within the needle guard 6 on the needle shaft 5 is provided with groove, the inside card has split washer (7), pulling out needle shaft 12 is connected with the mode of needle guard 6 by the screw thread precession, fixing by dog screw 17 simultaneously, the top of needle shaft 5 is provided with friction disc 11, and friction disc 11 and pull out and be provided with spring 13 between the needle shaft 12, base 8 is positioned at the outside of needle guard 6, be slidingly connected with needle guard 6, base 8 is provided with screw thread, cooperation by tapered cup nut and screw thread is installed on the tensimeter plastic 19 base 8, and described handwheel 15 is connected by screw retention with an end that pulls out needle shaft 12 that stretches out needle guard 6.
Above-mentioned base 8 is provided with annular groove with the position that tensimeter plastic 19 contacts, and the big O type circle 9 that is used for sealing between base 8 and the tensimeter plastic 19 is positioned at above-mentioned annular groove, forms the sealing of first road.
Above-mentioned needle guard 6 is provided with annular groove with the position that base 8 contacts, and the O type circle 10 that is used for sealing between needle guard 6 and the base 8 is positioned at above-mentioned annular groove, forms the sealing of second road.
Above-mentioned needle shaft 12 tops of pulling out are provided with annular groove, and the little O type circle 14 that is used to pull out sealing between needle shaft 12 and the needle guard 6 is positioned at above-mentioned annular groove, forms three seals.
3 above-mentioned roads effectively seal, and have avoided the seepage of liquid in the oil dumped pressure gauge, have increased the lubricity of tensimeter internal part on the one hand, make it not easily damaged, have prolonged serviceable life, on the other hand, meet the requirement of hygienic environment-protecting.
When pressure rose, gauge hand rotated, and touches and pulls out pin 3, drive passive pin 1 and rotate together, stop to the pressure maximum, after pressure discharges, manometric pointer returns zero-bit, because gauge hand and group pin 3 unidirectional contacts are so passive pin 1 still is in pressure maximum position place, behind the maximum pressure value down to be recorded, rotation hand wheel 15, by the effect of spring 13, drive passive pin 1 and rotate, passive pin 1 returns zero-bit.
In addition, can be by the size that the degree of depth is come regulating spring 13 elastic force that is threaded into of rotation hand wheel 15.
Owing to quoted the structure of passive pin, increased manometric function of seismic resistance, widened the manometric scope of application.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (6)
- One kind can oil-filled anti-shock pressure meter memory pointer mechanism, it is characterized in that comprising runner assembly, seal assembly and handwheel (15), wherein runner assembly comprises passive pin (1), pin cap (2), dial pin (3), balancing weight (4) and needle shaft (5), above-mentioned pin cap (2) and needle shaft (5) are riveted on the two sides, front and back of passive pin (1) middle part respectively, pull out pin (3) and balancing weight (4) and then be individually fixed in two ends of passive pin (1), pin cap (2), pull out pin (3) and balancing weight (4) and be positioned at the same side of passive pin (1), above-mentioned seal assembly comprises tensimeter plastic (19), base (8), needle guard (6) and pull out needle shaft (12), one end of needle guard (6) is with above-mentioned needle shaft (5), the other end is with and pulls out needle shaft (12), the top of needle shaft (5) is provided with friction disc (11), and friction disc (11) and pull out and be provided with spring (13) between the needle shaft (12), base (8) is positioned at the outside of needle guard (6), be slidingly connected with needle guard (6), base (8) is provided with screw thread, cooperation by tapered cup nut and screw thread is installed on the tensimeter plastic (19) base (8), and described handwheel (15) is connected by screw retention with an end that pulls out needle shaft (12) that stretches out needle guard (6).
- 2. memory pointer mechanism that can oil-filled anti-shock pressure meter according to claim 1, it is characterized in that described base (8) is provided with annular groove with the position that tensimeter plastic (19) contacts, the big O type circle (9) that is used for sealing between base (8) and the tensimeter plastic (19) is positioned at above-mentioned annular groove.
- 3. memory pointer mechanism that can oil-filled anti-shock pressure meter according to claim 1, it is characterized in that described needle guard (6) is provided with annular groove with the position that base (8) contacts, the O type circle (10) that is used for sealing between needle guard (6) and the base (8) is positioned at above-mentioned annular groove.
- 4. memory pointer mechanism that can oil-filled anti-shock pressure meter according to claim 1, it is characterized in that described needle shaft (12) top of pulling out is provided with annular groove, the little O type circle (14) that is used to pull out sealing between needle shaft (12) and the needle guard (6) is positioned at above-mentioned annular groove.
- 5. memory pointer mechanism that can oil-filled anti-shock pressure meter according to claim 1 is characterized in that the described needle shaft (12) that pulls out is connected with the mode of needle guard (6) by the screw thread precession, and is fixing by dog screw (17) simultaneously.
- 6. memory pointer mechanism that can oil-filled anti-shock pressure meter according to claim 1 is characterized in that the described needle guard (6) and the lower end of needle shaft (5) contact portion are provided with groove, and the inside card has split washer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100270245A CN101571439B (en) | 2009-06-08 | 2009-06-08 | Memory pointer mechanism for oil-chargeable shock resistant pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100270245A CN101571439B (en) | 2009-06-08 | 2009-06-08 | Memory pointer mechanism for oil-chargeable shock resistant pressure gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571439A CN101571439A (en) | 2009-11-04 |
| CN101571439B true CN101571439B (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100270245A Expired - Fee Related CN101571439B (en) | 2009-06-08 | 2009-06-08 | Memory pointer mechanism for oil-chargeable shock resistant pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571439B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674414A (en) * | 2012-09-17 | 2014-03-26 | 昆山尚达智机械有限公司 | Novel pressure gauge |
| CN111896169B (en) * | 2020-08-07 | 2021-09-14 | 金湖九州仪表有限公司 | Pressure gauge dial plate amplifying device |
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2009
- 2009-06-08 CN CN2009100270245A patent/CN101571439B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101571439A (en) | 2009-11-04 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20130608 |