CN201170748Y - Multifunctional pressure vacuum checkout device - Google Patents
Multifunctional pressure vacuum checkout device Download PDFInfo
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- CN201170748Y CN201170748Y CNU2007200343350U CN200720034335U CN201170748Y CN 201170748 Y CN201170748 Y CN 201170748Y CN U2007200343350 U CNU2007200343350 U CN U2007200343350U CN 200720034335 U CN200720034335 U CN 200720034335U CN 201170748 Y CN201170748 Y CN 201170748Y
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- pressure vacuum
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Abstract
The utility model discloses a multifunctional pressure vacuum checking device which is characterized in that the device mainly comprises a micro hydraulic hand pump, a four-way cutoff valve, a high pressure booster pump, a precise reading trimming, a highly precise pressure sensor interface, a measured pressure output interface, a water inlet cup, a water outlet cup, a pressure releasing valve, a hand pump, a pressure trimming, a positive and negative pressure switching valve, an outer casing, a bottom cover plate, etc. The hydraulic hand pump is provided with cylinder aperture of 8mm and the action area of 0.5 sq cm. The torque of the handle pump is 30mm. The piston cylinder diameter of the high pressure booster pump is 8mm with the action area of 0.5 sq cm. The pressured connecting tube of the device is a 3*1 stainless steel capillary tube. The inner diameter of the tube is 1mm and the thickness of the wall is 1mm. After the annealing treatment, the two ends of the pressured connecting tube are clamped in a pressure transmission hole to be squeezed. Then, the surface contact is changed into line contact. The periphery of the table surface of the casing of the device is pressed into a water ditch. The multifunctional pressure vacuum checking device has the characteristics of small volume, labor-saving performance, beautiful appearance, simple structure, easy disassembly, easy assembly and carrying convenience.
Description
Technical field
The utility model relates to a kind of high pressure checkout equipment, relates to the technical field of pressure vacuum calibration equipment more specifically.
Background technology
In the known technology, both at home and abroad the tester of widespread usage has glad Chester (Hincheat) company limited of Britain and the hand vice formula pressure calibration manual pump that Bei Meikesi (Beamex) company produces, and Beijing Air China electromechanical research institute is in the zH2045 type vacuum-pressure signal generator of nineteen ninety-five batch process.But above-mentioned these product structure complexity, inconvenient operation, it is big to detect error.
The utility model content
The technical matters that solves: for overcoming above-mentioned shortcoming, the purpose of this utility model is to design a kind of compact conformation and takes up room little, easy to operate, stability is high, the detection reading is accurate, acidproof, corrosion-resistant difficult obstruction, exempt to clean, simultaneously, its employed medium is got the multi-functional pressure vacuum calibration equipment of convenient, pollution-free, asepsis environment-protecting.
Technical scheme: for solving the problems of the technologies described above, the utility model is bought existing by the following technical programs:
A kind of multi-functional pressure vacuum calibration equipment, it is characterized in that it is by the water inlet cup, stirrup pump, the hydraulic pressure stop valve, the big fine setting of high pressure, draining valve, pressure export, pressure export, water tank, sewage discharges, hand air pump, volume adjustment, air release, the pressure vacuum transfer valve, the air pressure delivery outlet, positive and negative crimping mouth of gas and four-way connection are formed, wherein hand lifts into water cup is housed on the pump, hand lifts pump and links to each other by the import of pipeline with the hydraulic pressure stop valve, the outlet of hydraulic pressure stop valve connects pressure export and pressure export, the hydraulic pressure stop valve is connected with the import of the big fine setting of high pressure, the outlet of the big fine setting of high pressure is connected with draining valve, draining valve and water tank, sewage discharges and connects, hand air pump and pressure vacuum transfer valve are by two two-way connections of pipeline, the pressure vacuum transfer valve links to each other with a joint of four-way connection, other three joints of four-way connection by pipeline respectively with volume adjustment, air release is connected with the air pressure delivery outlet, and the air pressure delivery outlet links to each other by the positive and negative crimping mouth of pipeline and gas.
Aforesaid multi-functional pressure vacuum calibration equipment, as 8 millimeters in the cylinder aperture of preferential above-mentioned hydraulic pressure stirrup pump, 0.5 square centimeter of active area, hand pump moment is best for 30 millimeters.
Aforesaid multi-functional pressure vacuum calibration equipment, as 8 millimeters of the piston cylinder diameters of preferential above-mentioned high-pressure booster, active area is best for 0.5 square centimeter.
Aforesaid multi-functional pressure vacuum calibration equipment, it as the pressure guiding pipe of preferential succession of the old by the new device 3 * 1 stainless steel capillary, 1 millimeter of the internal diameter of pipe, wall thickness are best for 1 millimeter, stainless steel capillary is after annealing in process, two is adopted to be fastened in the pressure transmission hole and is pushed, with the contact of face contact becoming line.
Aforesaid multi-functional pressure vacuum calibration equipment is pressed into the ditch around it is characterized in that on the shell table top of said apparatus.
The beneficial effects of the utility model are: multi-functional pressure vacuum calibration equipment of the present utility model,
1, because working medium is distilled water or pure water, it is convenient, pollution-free, nontoxic to get, and is the environment-friendly and green product.
2, this device hydraulic pressure system adopts acidproof, corrosion resistant stainless steel material, does not have and stops up, exempts to clean.
3, the pressure broad quantum is from-0.1-100MPa, air pressure 0-4MPa; Negative pressure (vacuum)-0.098-0MPa.(hydraulic pressure, air pressure, negative pressure) ternary comprehensive detection is economized and has been made an appointment with air compressor machine, the shared space of vacuum pump, shockproof, noiselessness.
4, adopt the high strength encapsulant, boost to the upper limit, pressurize reached zero and reveals after 1 minute, and stability is high, can reach pin-point reading.
And have the advantages that little, laborsaving, handsome in appearance, simple in structure, readily removable, the easy dress of volume is convenient for carrying.Can be widely used in industrial electric power, metallurgy, oil, chemical industry, machinery, aviation, electronics, food, pharmacy, metering, scientific and technological pressure detection.
Description of drawings
Fig. 1 is a multi-functional pressure vacuum calibration equipment synoptic diagram
1, water inlet cup; 2, stirrup pump; 3, hydraulic pressure stop valve; 4, the big fine setting of high pressure;
5, draining valve; 6, pressure export; 7, pressure export; 8, water tank;
9, sewage discharges; 10, hand air pump; 11, volume adjustment; 12, air release;
13, pressure vacuum transfer valve; 14, air pressure delivery outlet; 15, the positive and negative crimping mouth of gas;
16, four-way connection.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
Multi-functional pressure vacuum calibration equipment of the present utility model is mainly by micro hydraulic stirrup pump (hydraulic pressure initial pressure), four-way check valve, high-pressure booster, precise reading fine setting, the high-precision pressure sensor interface, by the measuring pressure output interface. water inlet cup, go out water tumbler, pressure relief valve.Air pressure: stirrup pump is arranged, pressure fine setting, positive and negative pressure transfer valve, outer casing. compositions such as bottom plate.
1. the design of hydraulic pressure stirrup pump
8 millimeters in the cylinder aperture of the stirrup pump of the utility model design, 0.5 square centimeter of active area, stirrup pump moment is 30 millimeters, has the advantages that little, laborsaving, handsome in appearance, simple in structure, readily removable, the easy dress of volume is convenient for carrying.
2. the design of high-pressure hydraulic pump
High pressure checking table hydraulic pump, be to make the pressing system critical component, be the cylinder diameter area for cutting of piston cylinder equally, the cylinder diameter of prior art hydraulic pump piston cylinder is the 16-20 millimeter, the area 2-2.5 square centimeter of acting force, and the screw press disk diameter is the 200-250 millimeter, uses the hand-power rotary disk, two hands make very big strength, could come 60 kilograms big iron counterweight jack-up.The 3000 kg/cm piston manometers that Japanese for another example Yokogawa is produced, its forcing pump cylinder body diameter is 3 square centimeters, screw press dish disk diameter is 1 meter, picture steamer pendulum rudder, when making the pressure of pressing 3000kg/cm2, to come 375 kilograms big iron counterweight jack-up, two people to rotate rotating disk simultaneously, could rise counterweight come.It is very painstaking to examine a table, and this is Japan's forcing pump of the eighties, and is still relatively backward.And high-pressure pump piston cylinder diameter of the present utility model is 8 millimeters, 0.5 square centimeter of active area.It is just more free and relaxed to operate like this.
3, the selected and processing technology of high pressure piston cylinder body material
Because high pressure calibrating installation, pressure medium are selected pure water for use, so the material of piston, piston/cylinder must be antiseptic and rustproof stainless steel.As everyone knows, big, sticking cutter, especially deep hole machining of stainless steel difficulty of processing, the piston cylinder hole geometry, the Geometrical Tolerance Principle height has strict processing technology, and boring, bore hole, fraising, row grind, slightly grind, lappingout, especially the circularity of endoporus, roughness (requirement reaches minute surface), several microns of zero points, often a collection of feeding intake, what really reach the drawing requirement has only 50%, most of defective doing over again, or scrap.The endoporus circularity of cylinder, tapering, particularly roughness, quality decision quality quality, sealing property and serviceable life that pressing system is made in influence, the experimental result through several years, the high pressure piston cylinder body is the heart of experimental provision, only guaranteed its processing technology is only the key of the good and bad quality of calibration equipment.
4, aqueous medium high-pressure tightness
The sealing of aqueous medium high pressure calibration equipment except the quality of piston/cylinder, also has the intensity of material, the intensity of joint screw thread, the thickness of tube wall, intensity, the hardness of O type circle, the roughness of screw thread baseplane, verticality etc.If the insufficient strength of material, under high pressure, material can be out of shape, can explosion, small especially material deformation, can't see, touch less than, under high pressure, the inner chamber tube wall can expand, and causes that pressure descends, all there is this problem in all high-pressure systems.For addressing this problem, parts hardness intensity, the thickness of tube wall, the tooth distance and the degree of depth of screw thread have been increased, the smooth finish of seal groove, the verticality of plane and screw thread, smooth finish.
Pressure guiding pipe is generally 8 millimeters at the internal diameter of 70MPa, i.e. 8 * 2 connecting pipes (copper tube), good, the good dismounting of flexibility, and the pressure guiding pipe joint of water-bound adopts stainless steel, and the past is used the silver soldering method, but the injustice of weldering, not round, trachoma, harder is arranged, and dismounting is difficulty relatively.We changed the stainless-steel tube kapillary afterwards, i.e. 3 * 1 stainless steel capillary, and the internal diameter that dwindles pipe is 1 millimeter, wall thickness is 1 millimeter, very soft after the annealing, two is adopted to be fastened in the pressure transmission hole and is pushed, with the contact of face contact becoming line, through repeatedly pressure testing, repeatedly dismounting is under 60MPa pressure, non-leakage, effect is fine, through the test of more than a year leak test, generally in the pressure 60-70MPa back pressurize one or two minutes of boosting, the conduit endoporus is expanded, volume is saturated down, pressure decline＜0.005%FS, but mandatory declaration is a bit, must be constant in environment temperature, if environment temperature has become, temperature raises, and medium varies with temperature and becomes, volumetric expansion, pressure descends.Otherwise pressure raises.
5, Zhuan Zhi shell
The shell of device of the present utility model is the die sinking punching press, and angle band semicircle R30 around the shell table top is because this device is a water-bound, in actual calibration operation, unavoidably there are flowing out, so be pressed into the ditch around on the platform, so, table top sets off the attractive in appearance of instrument more.It is also conceivable that employing ABS as improving appearance material.
6, Zhuan Zhi water tumbler
The water tumbler of device of the present utility model, a water inlet cup, a water outlet are irritated.If at will be placed on the instrument table top passablely with a water pot, but the outward appearance of whole instrument is unbecoming, so that water tumbler is designed to is transparent, the shape of water tumbler is up-small and down-big, the band tapering.Can injection mould as improving also, color is green Clear ﹠ Transparent.A water inlet cup, a water outlet cup are in the both sides of instrument table top, in order to set off the outward appearance of instrument.
The utility model is not limited to above-mentioned example, can learn from additional application range, and the personnel of field rudimentary knowledge change under the utility model by having, and this change also belongs to the utility model scope.All employings are equal to the technical scheme that form obtained of replacement or equivalent transformation, all drop within the desired protection domain of the utility model,
Claims (4)
1, a kind of multi-functional pressure vacuum calibration equipment, it is characterized in that it is by water inlet cup (1), stirrup pump (2), hydraulic pressure stop valve (3), the big fine setting of high pressure (4), draining valve (5), pressure export (6), pressure export (7), water tank (8), sewage discharges (9), hand air pump (10), volume adjustment (11), air release (12), pressure vacuum transfer valve (13), air pressure delivery outlet (14), positive and negative crimping mouth of gas (15) and four-way connection (16) are formed, wherein hand lifts into water cup (1) is housed on the pump (2), hand lifts pump (2) and links to each other by the import of pipeline with hydraulic pressure stop valve (3), the outlet of hydraulic pressure stop valve (3) connects pressure export (6) and pressure export (7), hydraulic pressure stop valve (3) is connected with the import of the big fine setting of high pressure (4), the outlet of the big fine setting of high pressure (4) is connected with draining valve (5), draining valve (5) and water tank (8), sewage discharges (9) and connects, hand air pump (10) and pressure vacuum transfer valve (13) are by two two-way connections of pipeline, pressure vacuum transfer valve (13) links to each other with a joint of four-way connection (16), other three joints of four-way connection (16) by pipeline respectively with volume adjustment (11), air release (12) is connected with air pressure delivery outlet (14), and air pressure delivery outlet (14) links to each other by the positive and negative crimping mouth of pipeline and gas (15).
2, multi-functional pressure vacuum calibration equipment according to claim 1 is characterized in that 8 millimeters in described stirrup pump (2), cylinder aperture, 0.5 square centimeter of active area, and stirrup pump (2) moment is 30 millimeters.
3, multi-functional pressure vacuum calibration equipment according to claim 1 is characterized in that described pipeline is 3 * 1 stainless steel capillary, 1 millimeter of the internal diameter of pipe, 1 millimeter of wall thickness.
4, multi-functional pressure vacuum calibration equipment according to claim 1 is characterized in that being pressed into the ditch around the described crust of the device table top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200343350U CN201170748Y (en) | 2007-02-06 | 2007-02-06 | Multifunctional pressure vacuum checkout device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200343350U CN201170748Y (en) | 2007-02-06 | 2007-02-06 | Multifunctional pressure vacuum checkout device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170748Y true CN201170748Y (en) | 2008-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200343350U Expired - Fee Related CN201170748Y (en) | 2007-02-06 | 2007-02-06 | Multifunctional pressure vacuum checkout device |
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| Country | Link |
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| CN (1) | CN201170748Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364137A (en) * | 2013-07-03 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Pressure sensor adjusting device |
| CN103557990A (en) * | 2013-10-11 | 2014-02-05 | 中国人民解放军63908部队 | All-round verifying device for pressure instrument equipment |
-
2007
- 2007-02-06 CN CNU2007200343350U patent/CN201170748Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364137A (en) * | 2013-07-03 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Pressure sensor adjusting device |
| CN103364137B (en) * | 2013-07-03 | 2015-07-29 | 淮南矿业(集团)有限责任公司 | Pressure transducer calibration apparatus |
| CN103557990A (en) * | 2013-10-11 | 2014-02-05 | 中国人民解放军63908部队 | All-round verifying device for pressure instrument equipment |
| CN103557990B (en) * | 2013-10-11 | 2016-04-06 | 中国人民解放军63908部队 | The all-round calibrating installation of a kind of manometer equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20130206 |