CN105043656A - Shock-proof pressure gauge for natural gas vehicles - Google Patents
Shock-proof pressure gauge for natural gas vehicles Download PDFInfo
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- CN105043656A CN105043656A CN201510499538.6A CN201510499538A CN105043656A CN 105043656 A CN105043656 A CN 105043656A CN 201510499538 A CN201510499538 A CN 201510499538A CN 105043656 A CN105043656 A CN 105043656A
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- shock
- pressure gauge
- proof pressure
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- gauge outfit
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Abstract
The invention belongs to the elastic deformation gauge field and discloses a shock-proof pressure gauge for natural gas vehicles. According to the technical schemes of the invention, the shock-proof pressure gauge includes a gauge outfit and a connector; a channel hole into which a measured medium is led is formed in the connector; a spiral tube into which the measured medium is led is arranged in the gauge outfit; the spiral tube is communicated with the channel hole in the connector; an end portion of the spiral tube is connected with a transmission device which converts the micro-distortion of the spiral tube to the swing of a pointer; and the gauge outfit and the connector are welded to each other or are manufactured through integrated modeling. According to the shock-proof pressure gauge, the gauge outfit and the connector are welded to each other or are manufactured through integrated modeling, and therefore, the structure of the shock-proof pressure gauge is more stable, and therefore, the looseness of the shock-proof pressure gauge can be avoided, and measurement accuracy is high; compared with a threaded connection structure, the shock-proof pressure gauge can assist in preventing external dust from entering the shock-proof pressure gauge, so that the inner structure of the shock-proof pressure gauge can be prevented from being polluted by dust, and the shock-proof pressure gauge is more durable; and the structure of the shock-proof pressure gauge is more compact, and the size of the pressure gauge can be effectively reduced, and the measurement accuracy of the pressure gauge can be further improved.
Description
Technical field
The present invention relates to elastic deformation gauge formula field, particularly relate to a kind of shock-proof pressure gauge for gas-fueled vehicles.
Background technology
Shock-proof pressure gauge is the mechanical pointer tensimeter having filling liquid in a kind of watchcase, or in watchcase, has filling liquid and mechanical indicator with damper (or revolution dial) formula tensimeter.Be applicable to the violent oscillator field institute of environment, can tolerate the pulsation of medium, impact and off-load suddenly, it is clear that instrument instruction is stablized.Be widely used in the departments such as machinery, oil, chemical industry, metallurgy, mine, electric power, measure the pressure to copper and copper alloy non-corrosiveness medium.Generally be made up of pressure guiding system (comprising joint, bourdon tube, current limliting screw etc.), gear drive, registration device (pointer and scale) and shell (comprising watchcase, table cover, watch glass etc.).
Automobile generally also can use this kind of tensimeter, mostly gauge outfit and the joint of current shock-proof pressure gauge are to adopt bolt to be connected, with boltsly be convenient to installation and removal, automobile shock-proof pressure gauge is in use general along with strong vibration, bolt connects owing to adopting bolt to coordinate, there will be when Long-term Vibration loosening, affect manometric measuring accuracy, and easily occur the accumulation of dust in thread groove, dust enters the wearing and tearing of original paper in meeting accelerometer in table, affects the precision of measurement simultaneously, shock-proof pressure gauge be measure gas-fueled vehicles engine on the pressure of gas, on general engine, the pressure of gas can reach about 20M, temperature will reach 120 degrees Celsius, what the gauge outfit be threaded and gauge stand often adopted is rubber gasket and fluid sealant fitted seal, after being used for a while, due to the erosion of pressure and temperature, rubber gasket and fluid sealant will there will be cracking or melt, to sealing problem be there is in the thread gaps between gauge outfit and gauge stand, rock gas will be scurried out from gap, cause gas leak, rock gas can cause people to suffocate, time serious, driver or other people generation will be made to suffocate.
Summary of the invention
The invention is intended to provide a kind of durability high, stable performance, anti seismic efficiency is good, the shock-proof pressure gauge for gas-fueled vehicles that measuring accuracy is high.
The base case that this programme provides is: for the shock-proof pressure gauge of gas-fueled vehicles, comprise gauge outfit, joint, its center tap inside is provided with the access opening passing into measured medium, described gauge outfit inside is provided with the spiral pipe passing into measured medium, described spiral pipe is connected with the access opening of joint inside, the end of spiral pipe is connected with the gearing Light deformation of spiral pipe being converted into the beat of pointer, and described gauge outfit and joint are welded to each other or adopt one-body molded manufacture.
Adopt such scheme, because the joint of gauge outfit adopts welding or one-body molded manufacture, structure is more stable, and avoid loosening situation, measuring accuracy is higher; Compared with screw connection structure, avoid entering of external dust, be inner structure from contamination by dust, more durable; And this structure is compacter, effectively reduce manometric size, further increase manometric measuring accuracy.
Optimization to above-mentioned base case: described joint and gauge outfit adopt argon arc welding to be connected.Effectively can avoid weld defects, obtain high-quality weld seam, thus make manometric better tightness.
Optimization to above-mentioned base case: the access opening end of described joint is provided with buffer cap.The pressure of available buffer measured medium, with protection channel hole and spiral pipe.
Optimization to above-mentioned base case: be provided with annular seal space in described gauge outfit, be provided with filling liquid in annular seal space.The inner original paper of protection gauge outfit, shock-proof effect is better.
Further optimization to above-mentioned prioritization scheme: described gauge outfit top is provided with sealing-plug.Carry out increasing filling liquid on the one hand, be used for pressure release on the one hand, protection tensimeter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the shock-proof pressure gauge embodiment for gas-fueled vehicles;
Fig. 2 is the right TV structure schematic diagram of the shock-proof pressure gauge embodiment for gas-fueled vehicles.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: gauge outfit 1, joint 2, buffer cap 3, sealing-plug 4, spiral pipe 11, gearing 12, filling liquid 13, access opening 21, weld seam 22.
Embodiment is substantially as shown in figure 1 and 2:
This shock-proof pressure gauge being used for gas-fueled vehicles comprises gauge outfit 1, joint 2, its center tap 2 inside is provided with the access opening 21 passing into measured medium, gauge outfit 1 inside is provided with the spiral pipe 11 passing into measured medium, spiral pipe 11 is connected with the access opening 21 of joint 2 inside, one end away from joint 2 of spiral pipe 11 is connected with the gearing 12 Light deformation of spiral pipe 11 being converted into the beat of pointer, gauge outfit 1 adopts argon arc welding to be connected with joint 2, and the weld seam 22 after welding as shown in Figure 2.
Argon arc welding utilizes argon gas as a kind of arc welding method of protective medium.Argon gas is a kind of inert gas, and it neither makes welded burning with metal chemically reactive, is also not dissolved in liquid metal.Therefore, can weld defects be avoided, obtain high-quality weld seam 22.During argon arc welding, because the ionization potential of argon gas is higher, therefore striking is more difficult, often uses high frequency oscillator generation high-frequency high-voltage for this reason and carrys out striking.Because the heat-sinking capability of argon gas is lower, thus once after igniting, just can comparatively burn steadily.Adopting argon arc welding can obtain the weld seam 22 of better quality, is well-adapted for this kind of precision measurement together.
Access opening 21 end of joint 2 is provided with buffer cap 3, with protection channel hole 21 and spiral pipe 11.The unique cover body of this buffer cap 3, the upper end of this cover body has hole, and measured medium reduces flow by this Kong Houhui, to reduce the pressure medium inside access opening 21 and spiral pipe 11, plays a protective role.
Be provided with filling liquid 13 in gauge outfit 1, increase filling liquid 13 energy available protecting internal mechanism part, reduce the wearing and tearing between mechanism, and play anti seismic efficiency.Gauge outfit 1 top is provided with sealing-plug 4, and the lower end of sealing-plug 4 is provided with flange, and sealing-plug 4 to be inserted in top-portion apertures and is connected to by flange in the groove of gauge outfit inwall.Set up sealing-plug 4 be convenient to add filling liquid 13, simultaneously when sealing liquid in tensimeter because pressure is excessive, when oppressing inner original paper, to the timely pressure release of tensimeter prevent blast.
The principle of work of the program is: measured medium enters in joint 2 by the access opening 21 of lower end, then enter in the spiral pipe 11 of gauge outfit 1, because pressure medium is that spiral pipe deforms, spiral pipe 11 drives again the gearing 12 of its end to make the beat of pointer carry out pressure display.Gearing 12 be by present very general toggle and gear drive combine.This tensimeter should keep inner clean drying in assembling calibration procedures, and instrument outward appearance should clean attractive in appearance; The technical indicator of instrument should meet the relevant regulations in JB/T6804-2006.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in instructions etc. record the content that may be used for explaining claim.
Claims (5)
1. for the shock-proof pressure gauge of gas-fueled vehicles, comprise gauge outfit, joint, its center tap inside is provided with the access opening passing into measured medium, it is characterized in that: described gauge outfit inside is provided with the spiral pipe passing into measured medium, described spiral pipe is connected with the access opening of joint inside, the end of spiral pipe is connected with the gearing Light deformation of spiral pipe being converted into the beat of pointer, and described gauge outfit and joint are welded to each other or adopt one-body molded manufacture.
2. shock-proof pressure gauge according to claim 1, is characterized in that: described joint and gauge outfit adopt argon arc welding to be connected.
3. shock-proof pressure gauge according to claim 1, is characterized in that: the access opening end of described joint is provided with buffer cap.
4. shock-proof pressure gauge according to claim 1, is characterized in that: be provided with annular seal space in described gauge outfit, be provided with filling liquid in annular seal space.
5. shock-proof pressure gauge according to claim 3, is characterized in that: described gauge outfit top is provided with sealing-plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499538.6A CN105043656A (en) | 2015-08-15 | 2015-08-15 | Shock-proof pressure gauge for natural gas vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499538.6A CN105043656A (en) | 2015-08-15 | 2015-08-15 | Shock-proof pressure gauge for natural gas vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105043656A true CN105043656A (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510499538.6A Pending CN105043656A (en) | 2015-08-15 | 2015-08-15 | Shock-proof pressure gauge for natural gas vehicles |
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| Country | Link |
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| CN (1) | CN105043656A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449528A (en) * | 2017-09-06 | 2017-12-08 | 马鞍山市奈特仪表科技有限公司 | A kind of spiral pressure gauge and its production method |
| CN111896169A (en) * | 2020-08-07 | 2020-11-06 | 金湖九州仪表有限公司 | Pressure gauge dial plate amplifying device |
| CN113607327A (en) * | 2021-07-02 | 2021-11-05 | 宁波旭日温压仪表有限公司 | Bourdon tube pressure gauge |
-
2015
- 2015-08-15 CN CN201510499538.6A patent/CN105043656A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449528A (en) * | 2017-09-06 | 2017-12-08 | 马鞍山市奈特仪表科技有限公司 | A kind of spiral pressure gauge and its production method |
| CN107449528B (en) * | 2017-09-06 | 2024-01-30 | 淄博益源工程技术有限公司 | Spiral pipe pressure gauge and production method thereof |
| CN111896169A (en) * | 2020-08-07 | 2020-11-06 | 金湖九州仪表有限公司 | Pressure gauge dial plate amplifying device |
| CN111896169B (en) * | 2020-08-07 | 2021-09-14 | 金湖九州仪表有限公司 | Pressure gauge dial plate amplifying device |
| CN113607327A (en) * | 2021-07-02 | 2021-11-05 | 宁波旭日温压仪表有限公司 | Bourdon tube pressure gauge |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
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| WD01 | Invention patent application deemed withdrawn after publication |