CN203940949U - Pressure transducer negative pressure simulation test equipment - Google Patents
Pressure transducer negative pressure simulation test equipment Download PDFInfo
- Publication number
- CN203940949U CN203940949U CN201420298159.1U CN201420298159U CN203940949U CN 203940949 U CN203940949 U CN 203940949U CN 201420298159 U CN201420298159 U CN 201420298159U CN 203940949 U CN203940949 U CN 203940949U
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- door
- vacuum chamber
- simulation test
- pressure transducer
- test equipment
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Abstract
The utility model discloses a kind of pressure transducer simulation test equipment, aim to provide that a kind of security performance is good, simulation test accurately and use simple pressure transducer negative pressure simulation test equipment.The utility model comprises control box (1), vacuum chamber (2), Vacuum door (3) and Pneumatic controller (4), in described vacuum chamber (2), be provided with automatic door lock mechanism (5), described automatic door lock mechanism (5) comprises slide rail (51), the slide plate (52) of locking a door, locking cylinder (53), bolt cylinder (54), the bearing (55) of locking a door, two Rotational Cylindrical (56), V-block (57), described locking cylinder (53) and described bolt cylinder (54) arrange in opposite directions, the output terminal of described locking cylinder (53) with described in the bearing (55) of locking a door be connected, described pressure transducer negative pressure simulation test equipment also comprises the gate stop I (6) that is arranged on described Vacuum door (3) inner side.The utility model is applied to the technical field of pressure transducer simulation test equipment.
Description
Technical field
The utility model relates to a kind of pressure transducer simulation test equipment, particularly a kind of pressure transducer negative pressure simulation test equipment.
Background technology
There are at present a lot of electronic products all to carry atmospheric pressure Presentation Function, such as mobile communication equipments such as mobile phones.By atmospheric pressure Presentation Function, user can be well understood to on-site atmospheric pressure situation.But all easily there is the inaccurate phenomenon of data that atmospheric pressure shows in the electronic product that much carries atmospheric pressure Presentation Function at present, thereby can mislead the people that use this product.
Making the inaccurate principal element of data that electronic product occurs that atmospheric pressure shows is that sensor is not accurate, causes sensor accurately because have a lot, but has four unavoidable errors, and this is the initial error of sensor.First displacement errors, because pressure transducer vertical shift in whole pressure limit keeps constant, therefore transducer diffusion and laser regulate the variation of revising will produce displacement errors.Next is sensitivity error, produces error size and is directly proportional to pressure.If equipment is highly sensitive in representative value, sensitivity error is by the increasing function that is pressure.If sensitivity is lower than representative value, sensitivity error is by the decreasing function that is pressure so, and the generation reason of this error is the variation of diffusion process.The 3rd is linear error, and this is one affects less factor to pressure transducer initial error, and the generation reason of this error is the physical nonlinearity of silicon chip, but for the sensor with amplifier, also should comprise amplifier nonlinearity.Linear error curve can be concave curve, can be also crest curve LOAD CELLS.Be finally hysteresis error, in most of situations, the hysteresis error of pressure transducer is completely negligible, because silicon chip has very high mechanical stiffness.In the general situation that only need alter a great deal at pressure, consider hysteresis error.
Four above-mentioned errors are that pressure transducer is unavoidable, high-precision production equipment can only be selected by enterprise, utilize new and high technology to reduce these errors, can also in dispatching from the factory, calibrate for error accordingly, maximum to the greatest extent may reduce error to meet client's needs.With regard to calibrating for error of pressure transducer, generally in simulation test equipment, complete.In the process of simulation test equipment detection calibration sensor, filling in malleation process, if equipment has a power failure suddenly or other reason lost efficacy control structure, can cause equipment internal pressure excessive, list can cause damage to equipment on the one hand, also can have on the other hand huge potential safety hazard, may damage personnel once blast, and even life danger, is therefore badly in need of current equipment to improve.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide that a kind of security performance is good, simulation test accurately and use simple pressure transducer negative pressure simulation test equipment.
The technical scheme that the utility model adopts is: the utility model comprises control box, vacuum chamber, with the suitable Vacuum door of described vacuum chamber and be arranged on the Pneumatic controller in described control box, described Pneumatic controller is connected with the inside of described vacuum chamber, in described vacuum chamber, be provided with automatic door lock mechanism, described automatic door lock mechanism comprises slide rail, the slide plate of locking a door being slidably connected with described slide rail, locking cylinder and the bolt cylinder of described in being fixedly installed on, locking a door on slide plate, be fixedly installed on described vacuum chamber lock a door bearing and be fixedly installed on described in two Rotational Cylindrical of locking a door on slide plate, in two described Rotational Cylindrical, be provided with the V-block being rotationally connected with it, the output terminal of one end of described V-block and described bolt cylinder is hinged, the other end of described V-block is provided with hinge bolt, described locking cylinder and described bolt cylinder arrange in opposite directions, the output terminal of described locking cylinder with described in the bearing of locking a door be connected, described pressure transducer negative pressure simulation test equipment also comprise be arranged on described Vacuum door inner side and with the suitable gate stop I of described hinge bolt, when work, described bolt cylinder output, described hinge bolt blocks described gate stop I, then described locking cylinder shrinks, thereby described Vacuum door is inwardly strained at.
Described pressure transducer negative pressure simulation test equipment also comprises Manual door lock mechanism, described Manual door lock mechanism comprise be arranged on the projection in described vacuum chamber outside and be arranged on described Vacuum door outside and with the suitable gate stop II of described projection, when described Vacuum door tightly closes on described vacuum chamber, gapped between the hook portion of described gate stop II and described projection.
Between described gate stop II and described Vacuum door, be provided with torsion spring, the both sides of described vacuum chamber all arrange handle.
Be provided with the standing groove suitable with described automatic door lock mechanism at described vacuum chamber sidepiece, one side of described standing groove is connected with the doorway of described vacuum chamber, the top of described standing groove is provided with the gland bonnet suitable with it, described standing groove is fixedly installed slide rail fixed block, and described slide rail is fixedly installed on the both sides of described slide rail fixed block.
Air compressor machine, proportioning valve, vacuum solenoid I, vacuum generator, vacuum solenoid II, vacuum solenoid III that described Pneumatic controller comprises control panel and is electrically connected with described control panel; Described air compressor machine is connected with described vacuum chamber by admission line, on described admission line, is disposed with described proportioning valve and described vacuum solenoid I along the direction of air inlet; Described vacuum generator is connected with described vacuum chamber by pump-line, is provided with described vacuum solenoid III on described pump-line; Between described air compressor machine and described vacuum generator, be provided with described vacuum solenoid II.
Described Pneumatic controller also comprises the mechanical type blowdown valve being connected with described vacuum chamber.
Described Pneumatic controller also comprises the pressure transducer being connected with described vacuum chamber inside, and described pressure transducer is electrically connected with described control panel.
Described Pneumatic controller also comprises the vacuum solenoid IV and the temperature sensor that are connected with described vacuum chamber inside, and described vacuum solenoid IV and described temperature sensor are all electrically connected with described control panel.
The sidepiece of described control box is provided with fan, and when work, described fan blows outside cold wind to described Pneumatic controller.
On described control box, be also provided with the USB interface being connected with the simulation test product signal in described vacuum chamber.
The beneficial effects of the utility model are: because the utility model comprises control box, vacuum chamber, with the suitable Vacuum door of described vacuum chamber and be arranged on the Pneumatic controller in described control box, described Pneumatic controller is connected with the inside of described vacuum chamber, in described vacuum chamber, be provided with automatic door lock mechanism, described automatic door lock mechanism comprises slide rail, the slide plate of locking a door being slidably connected with described slide rail, locking cylinder and the bolt cylinder of described in being fixedly installed on, locking a door on slide plate, be fixedly installed on described vacuum chamber lock a door bearing and be fixedly installed on described in two Rotational Cylindrical of locking a door on slide plate, in two described Rotational Cylindrical, be provided with the V-block being rotationally connected with it, the output terminal of one end of described V-block and described bolt cylinder is hinged, the other end of described V-block is provided with hinge bolt, described locking cylinder and described bolt cylinder arrange in opposite directions, the output terminal of described locking cylinder with described in the bearing of locking a door be connected, described pressure transducer negative pressure simulation test equipment also comprise be arranged on described Vacuum door inner side and with the suitable gate stop I of described hinge bolt, when work, described bolt cylinder output, described hinge bolt blocks described gate stop I, then described locking cylinder shrinks, thereby described Vacuum door is inwardly strained at, so, the utility model is filling in malleation process, when equipment has a power failure suddenly or other reason makes that control structure lost efficacy, when in described vacuum chamber, positive pressure pressure exceedes the maximum pull of described locking cylinder of described automatic lock door mechanism, because drawing, described locking cylinder do not live described Vacuum door, described Vacuum door can be held a little crack between a door and its frame, described vacuum chamber is let out as atmospheric pressure state, thereby play a protective role, and the utility model can carry out simulation test to different products, universal performance is good.
In addition, because described pressure transducer negative pressure simulation test equipment also comprises Manual door lock mechanism, described Manual door lock mechanism comprise be arranged on the projection in described vacuum chamber outside and be arranged on described Vacuum door outside and with the suitable gate stop II of described projection, when described Vacuum door tightly closes on described vacuum chamber, gapped between the hook portion of described gate stop II and described projection, so, in the time that the each control structure of described automatic lock door mechanism all lost efficacy, because described vacuum chamber malleation is too large, when described Vacuum door flicks rapidly, the described gate stop II of described Manual door lock mechanism is hooked described Vacuum door, final described vacuum chamber is let out as atmospheric pressure state, thereby play a protective role, well eliminate potential safety hazard.
Brief description of the drawings
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the structural representation of described automatic door lock mechanism 5;
Fig. 3 is the structural representation of described Manual door lock mechanism;
Fig. 4 is another one-piece construction schematic diagram of the present utility model;
Fig. 5 is the structural representation of described Pneumatic controller 4.
Embodiment
As depicted in figs. 1 and 2, in the present embodiment, the utility model comprises control box 1, vacuum chamber 2, with the suitable Vacuum door 3 of described vacuum chamber 2 and be arranged on the Pneumatic controller 4 in described control box 1, described Pneumatic controller 4 is connected with the inside of described vacuum chamber 2, in described vacuum chamber 2, be provided with automatic door lock mechanism 5, described automatic door lock mechanism 5 comprises slide rail 51, the slide plate 52 of locking a door being slidably connected with described slide rail 51, locking cylinder 53 and the bolt cylinder 54 of described in being fixedly installed on, locking a door on slide plate 52, be fixedly installed on described vacuum chamber 2 lock a door bearing 55 and be fixedly installed on described in two Rotational Cylindrical 56 of locking a door on slide plate 52, in two described Rotational Cylindrical 56, be provided with the V-block 57 being rotationally connected with it, the output terminal of one end of described V-block 57 and described bolt cylinder 54 is hinged, the other end of described V-block 57 is provided with hinge bolt 58, described locking cylinder 53 and described bolt cylinder 54 arrange in opposite directions, the output terminal of described locking cylinder 53 with described in the bearing 55 of locking a door be connected, described pressure transducer negative pressure simulation test equipment also comprise be arranged on described Vacuum door 3 inner sides and with the suitable gate stop I 6 of described hinge bolt 58.In the present embodiment, slide plate 52 belows of locking a door described in are also provided with the slide block 59 suitable with described slide rail 51.When work, described bolt cylinder 54 is exported, described hinge bolt 58 blocks described gate stop I 6, then described locking cylinder 53 shrinks, thereby described Vacuum door 3 is inwardly strained at, filling in malleation process, when equipment has a power failure suddenly or other reason makes that control structure lost efficacy, when in described vacuum chamber, 2 positive pressure pressures exceed the maximum pull of described locking cylinder 53 of described automatic lock door mechanism 5, because drawing, described locking cylinder 53 do not live described Vacuum door 3, described Vacuum door 3 can be held a little crack between a door and its frame, described vacuum chamber 2 is let out as atmospheric pressure state, thereby play a protective role, and the utility model can carry out simulation test to different products, universal performance is good, be well positioned to meet the test of the same performance of multiple product.
As shown in Figure 3, in the present embodiment, described pressure transducer negative pressure simulation test equipment also comprises Manual door lock mechanism, described Manual door lock mechanism comprise be arranged on the projection 7 in described vacuum chamber 2 outsides and be arranged on described Vacuum door 3 outsides and with the suitable gate stop II 8 of described projection 7, when described Vacuum door 3 tightly closes on described vacuum chamber 2, between the hook portion 81 of described gate stop II 8 and described projection 7 gapped 9, in the time that the each control structure of described automatic lock door mechanism all lost efficacy, because described vacuum chamber 2 malleations are too large, when described Vacuum door 3 flicks rapidly, the described gate stop II 8 of described Manual door lock mechanism is hooked described Vacuum door 3, final vacuum chamber 2 is let out as atmospheric pressure state, thereby play a protective role, well eliminate potential safety hazard.
In the present embodiment, between described gate stop II 8 and described Vacuum door 3, be provided with torsion spring, the both sides of described vacuum chamber 2 all arrange handle 15, universal performance of the present utility model is good, gonosome is long-pending little, the dirigibility that can improve transport and use on production line by described handle 15, simple to operate, good looking appearance.
As shown in Figure 4, in the present embodiment, be provided with the standing groove 10 suitable with described automatic door lock mechanism 5 at described vacuum chamber 2 sidepieces, one side of described standing groove 10 is connected with the doorway of described vacuum chamber 2, the top of described standing groove 10 is provided with the gland bonnet suitable with it 11, described standing groove 10 is fixedly installed slide rail fixed block 14, and described slide rail 51 is fixedly installed on the both sides of described slide rail fixed block 14.
As shown in Figure 5, in the present embodiment, air compressor machine 41, proportioning valve 42, vacuum solenoid I 43, vacuum generator 44, vacuum solenoid II 45, vacuum solenoid III 46 that described Pneumatic controller 4 comprises control panel 40 and is electrically connected with described control panel 40; Described air compressor machine 41 is connected with described vacuum chamber 2 by admission line 47, on described admission line 47, is disposed with described proportioning valve 42 and described vacuum solenoid I 43 along the direction of air inlet; Described vacuum generator 44 is connected with described vacuum chamber 2 by pump-line 48, is provided with described vacuum solenoid III 46 on described pump-line 48; Between described air compressor machine 41 and described vacuum generator 44, be provided with described vacuum solenoid II 45.In the present embodiment, on described Vacuum door 3, be also provided with the stop button, scram button, start button, tri-colour LED and the reboot button that are electrically connected with described control panel 40.
In the present embodiment, described Pneumatic controller 4 also comprises the mechanical type blowdown valve 49 being connected with described vacuum chamber 2.
In the present embodiment, described Pneumatic controller 4 also comprises the pressure transducer 410 being connected with described vacuum chamber 2 inside, and described pressure transducer 410 is electrically connected with described control panel 40.
In the present embodiment, described Pneumatic controller 4 also comprises the vacuum solenoid IV 411 and the temperature sensor 412 that are connected with described vacuum chamber 2 inside, and described vacuum solenoid IV 411 and described temperature sensor 412 are all electrically connected with described control panel 40.
In the present embodiment, the sidepiece of described control box 1 is provided with fan 12, and when work, described fan 12 blows outside cold wind to described Pneumatic controller 4.
In the present embodiment, be also provided with the usb 13 being connected with the simulation test product signal in described vacuum chamber 2 on described control box 1, peripherals, by described usb 13, can be calibrated product.
Principle of work of the present utility model is as follows:
1, product is put into the rear setup test state of described vacuum chamber 2, described pressure transducer 410 detects the atmospheric pressure pressure of foundation in current described vacuum chamber 2, if pressure of foundation is because region reason is lower than absolute atmosphere 101.3kpa, described proportioning valve 42 and described vacuum solenoid I 43 are opened work, press to described vacuum chamber 2 inflations, meeting described vacuum chamber 2 internal pressures is absolute atmosphere 101.3kpa.Then, described vacuum solenoid II 45 and described vacuum solenoid III 46 are opened work, and described vacuum chamber 2 negative pressure of bleeding, reaches the required pressure of product test, start simulation test.
2, product is put into the rear setup test state of described vacuum chamber 2, described pressure transducer 410 detects the atmospheric pressure pressure of foundation in current described vacuum chamber 2, if pressure of foundation is greater than or equal to absolute atmosphere 101.3kpa, directly open described vacuum solenoid II 45, described vacuum solenoid III 46 is carried out work, described vacuum chamber 2 negative pressure of bleeding, reach the required pressure of product test, start simulation test.
The utility model is applied to the technical field of pressure transducer negative pressure simulation test equipment.
Although embodiment of the present utility model describes with practical solution, but do not form the restriction to the utility model implication, for those skilled in the art, the amendment according to this instructions to its embodiment and with the combination of other schemes be all apparent.
Claims (10)
1. a pressure transducer negative pressure simulation test equipment, comprise control box (1), vacuum chamber (2), with the suitable Vacuum door (3) of described vacuum chamber (2) and be arranged on the Pneumatic controller (4) in described control box (1), described Pneumatic controller (4) is connected with the inside of described vacuum chamber (2), it is characterized in that: in described vacuum chamber (2), be provided with automatic door lock mechanism (5), described automatic door lock mechanism (5) comprises slide rail (51), the slide plate of locking a door (52) being slidably connected with described slide rail (51), locking cylinder (53) and the bolt cylinder (54) of described in being fixedly installed on, locking a door on slide plate (52), be fixedly installed on the bearing of locking a door (55) on described vacuum chamber (2) and be fixedly installed on described in two Rotational Cylindrical (56) of locking a door on slide plate (52), in two described Rotational Cylindrical (56), be provided with the V-block (57) being rotationally connected with it, the output terminal of one end of described V-block (57) and described bolt cylinder (54) is hinged, the other end of described V-block (57) is provided with hinge bolt (58), described locking cylinder (53) and described bolt cylinder (54) arrange in opposite directions, the output terminal of described locking cylinder (53) with described in the bearing (55) of locking a door be connected, described pressure transducer negative pressure simulation test equipment also comprise be arranged on described Vacuum door (3) inner side and with the suitable gate stop I (6) of described hinge bolt (58), when work, described bolt cylinder (54) output, described hinge bolt (58) blocks described gate stop I (6), then described locking cylinder (53) shrinks, thereby described Vacuum door (3) is inwardly strained at.
2. pressure transducer negative pressure simulation test equipment according to claim 1, it is characterized in that: described pressure transducer negative pressure simulation test equipment also comprises Manual door lock mechanism, described Manual door lock mechanism comprise be arranged on the projection (7) in described vacuum chamber (2) outside and be arranged on outside described Vacuum door (3) and with the suitable gate stop II (8) of described projection (7), described Vacuum door (3) is tight to close in the time that described vacuum chamber (2) is upper, between the hook portion (81) of described gate stop II (8) and described projection (7) gapped (9).
3. pressure transducer negative pressure simulation test equipment according to claim 2, is characterized in that: between described gate stop II (8) and described Vacuum door (3), be provided with torsion spring, the both sides of described vacuum chamber (2) all arrange handle (15).
4. pressure transducer negative pressure simulation test equipment according to claim 1, it is characterized in that: be provided with the standing groove (10) suitable with described automatic door lock mechanism (5) at described vacuum chamber (2) sidepiece, one side of described standing groove (10) is connected with the doorway of described vacuum chamber (2), the top of described standing groove (10) is provided with the gland bonnet suitable with it (11), described standing groove (10) is fixedly installed slide rail fixed block (14), and described slide rail (51) is fixedly installed on the both sides of described slide rail fixed block (14).
5. pressure transducer negative pressure simulation test equipment according to claim 1, is characterized in that: air compressor machine (41), proportioning valve (42), vacuum solenoid I (43), vacuum generator (44), vacuum solenoid II (45), vacuum solenoid III (46) that described Pneumatic controller (4) comprises control panel (40) and is electrically connected with described control panel (40); Described air compressor machine (41) is connected with described vacuum chamber (2) by admission line (47), is above disposed with described proportioning valve (42) and described vacuum solenoid I (43) along the direction of air inlet at described admission line (47); Described vacuum generator (44) is connected with described vacuum chamber (2) by pump-line (48), is provided with described vacuum solenoid III (46) on described pump-line (48); Between described air compressor machine (41) and described vacuum generator (44), be provided with described vacuum solenoid II (45).
6. pressure transducer negative pressure simulation test equipment according to claim 5, is characterized in that: described Pneumatic controller (4) also comprises the mechanical type blowdown valve (49) being connected with described vacuum chamber (2).
7. pressure transducer negative pressure simulation test equipment according to claim 5, it is characterized in that: described Pneumatic controller (4) also comprises the pressure transducer (410) being connected with described vacuum chamber (2) inside, described pressure transducer (410) is electrically connected with described control panel (40).
8. pressure transducer negative pressure simulation test equipment according to claim 5, it is characterized in that: described Pneumatic controller (4) also comprises the vacuum solenoid IV (411) and the temperature sensor (412) that are connected with described vacuum chamber (2) inside, and described vacuum solenoid IV (411) and described temperature sensor (412) are all electrically connected with described control panel (40).
9. according to the pressure transducer negative pressure simulation test equipment described in claim 1 to 8 any one, it is characterized in that: the sidepiece of described control box (1) is provided with fan (12), when work, described fan (12) blows outside cold wind to described Pneumatic controller (4).
10. according to the pressure transducer negative pressure simulation test equipment described in claim 1 to 8 any one, it is characterized in that: on described control box (1), be also provided with the USB interface (13) being connected with the simulation test product signal in described vacuum chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298159.1U CN203940949U (en) | 2014-06-05 | 2014-06-05 | Pressure transducer negative pressure simulation test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298159.1U CN203940949U (en) | 2014-06-05 | 2014-06-05 | Pressure transducer negative pressure simulation test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940949U true CN203940949U (en) | 2014-11-12 |
Family
ID=51860254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298159.1U Withdrawn - After Issue CN203940949U (en) | 2014-06-05 | 2014-06-05 | Pressure transducer negative pressure simulation test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203940949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101461A (en) * | 2014-06-05 | 2014-10-15 | 珠海市运泰利自动化设备有限公司 | Pressure sensor negative pressure simulation test device |
-
2014
- 2014-06-05 CN CN201420298159.1U patent/CN203940949U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101461A (en) * | 2014-06-05 | 2014-10-15 | 珠海市运泰利自动化设备有限公司 | Pressure sensor negative pressure simulation test device |
| CN104101461B (en) * | 2014-06-05 | 2016-05-04 | 珠海市运泰利自动化设备有限公司 | Pressure sensor negative pressure simulation test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |