CN109799032A - A kind of vacuum generator detection device - Google Patents
A kind of vacuum generator detection device Download PDFInfo
- Publication number
- CN109799032A CN109799032A CN201811644435.4A CN201811644435A CN109799032A CN 109799032 A CN109799032 A CN 109799032A CN 201811644435 A CN201811644435 A CN 201811644435A CN 109799032 A CN109799032 A CN 109799032A
- Authority
- CN
- China
- Prior art keywords
- main body
- vacuum generator
- apparatus main
- detection device
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of vacuum generator detection devices, including apparatus main body, the bottom end of described device main body front surface is provided with instrument board, and the top of apparatus main body side is provided with second sliding slot, the internal slide of the second sliding slot is connected with sliding block, and one end of sliding block is fixed with connecting rod, the other end of the sliding block is fixed with mounting plate, is provided with first sliding groove at the top of described device main body.The air inlet pipe that the present invention is arranged enters in first sliding groove; mounting plate drives baffle to leak cruelly outside; so that air inlet pipe inner body is protected simultaneously; LED display is hidden in the inside of apparatus main body; and drawstring is cooperated to make the device easy to carry; cooperate flexible sliding panel that the device volume is greatly reduced simultaneously, while avoiding the phenomenon that leaks air when detection under the cooperation of rubber bush, to improve the accuracy of this kind of detection device.
Description
Technical field
The present invention relates to vacuum generator detection field, specially a kind of vacuum generator detection device.
Background technique
Vacuum generator is exactly using a kind of novel of positive pressure gas source generation negative pressure, and efficiently, cleaning, economical, small-sized is true
Empty component, this makes in the place for having compressed air, or needs the place of positive/negative-pressure to obtain simultaneously in a pneumatic system
Negative pressure becomes very easy and conveniently, and vacuum generator is widely used in industrial automation mechanical, and electronics is packed, and is printed, modeling
The fields such as material and robot, the conventional use of vacuum generator are sucker cooperations, carry out the absorption of various materials, carry, especially
It is suitable for adsorbing frangible, soft, thin non-ferric, nonmetallic materials or spheroidal object, in this type of application, a common feature is
Required sucking rate is small, and vacuum level requirements are not high and are discontinuous operation, suction mechanism and its workability of influence of vacuum generator
The analysis and research of energy factor, design and selection to positive and negative pressure gas channel have very important practical significance, and vacuum generator is fast
Yi You automation type selecting is included, and many vacuum generator production firms buy in order to carry out detection to vacuum generator
Vacuum generator detection device, but present vacuum generator detection device volume is excessive to be not easy to carry, and different
It is enough that detector is protected, it is chronically exposed to outer meeting abrasion detection head, causes inner body impaired, so that its service life subtracts
It is short, and LED display leaks cruelly and is easy to cause it by by collision fragmentation outside, it is caused to can not work normally.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of vacuum generator detection device
Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of vacuum generator detection device, including device
Main body, the bottom end of described device main body front surface is provided with instrument board, and the top of apparatus main body side is provided with second sliding slot,
The internal slide of the second sliding slot is connected with sliding block, and one end of sliding block is fixed with connecting rod, and the other end of the sliding block is solid
Surely there is mounting plate, first sliding groove is provided at the top of described device main body, the end of the connecting rod is provided with and first sliding groove
The sliding panel matched, and air inlet pipe is provided at the top of sliding panel, and sleeve is provided on the outside of air inlet pipe, the mounting plate
The top of front surface is provided with baffle, and the bottom end of mounting plate front surface is equipped with LED display, described device main body one end
Inner wall is equipped with flowmeter, and apparatus main body one end inner wall is located above flowmeter and is equipped with pressure sensor, described device
The inner wall of the main body other end is equipped with converter, and apparatus main body other end inner wall is located above converter and is equipped with list
Piece machine.
Preferably, the air inlet pipe is internally provided with filter screen, and the material of the sleeve is rubber.
Preferably, the side of described device body top is provided with through-hole, and apparatus main body is equipped with drawstring by through-hole.
Preferably, the top of described device main body front surface is provided with the cavity matched with LED display, and device master
The side in internal portion is provided with fixed plate, and the sliding groove matched with mounting plate is provided in fixed plate.
Preferably, the dust plug with gas phase cooperation is provided at the top of the first sliding groove, and the material of dust plug is rubber
Glue.
Preferably, it is provided with silica gel particle on the outside of the sliding block, and is provided with limit plate on the inside of sliding block.
Preferably, the instrument board and flowmeter are electrically connected, and instrument board and pressure sensor are electrically connected.
Preferably, the pressure sensor and flowmeter and converter are electrically connected, and converter and monolithic are electromechanical
Property connection, the single-chip microcontroller and LED display are electrically connected.
Compared with prior art, the beneficial effects of the present invention are: the present invention passes through the sliding block being arranged band in second sliding slot
Dynamic mounting plate is moved with connecting rod, and the LED display installed on mounting plate and baffle cooperate, and is slided when connecting rod drives
When movable plate moves upwards, LED display can leak outside cruelly, while sliding panel drives air inlet pipe to leave first sliding groove start-up operation,
To be conducive to read data from LED display, when not in use, air inlet pipe enters in first sliding groove, and mounting plate drives baffle
Outside, so that air inlet pipe inner body is protected simultaneously, LED display is hidden in the inside of apparatus main body, and cooperates for sudden and violent leakage
Drawstring makes the device easy to carry, while cooperating flexible sliding panel that the device volume is greatly reduced, while in rubber
The phenomenon that leaks air when detection is avoided under the cooperation of sleeve, to improve the accuracy of this kind of detection device.
Detailed description of the invention
Fig. 1 is surface structure schematic diagram of the invention；
Fig. 2 is inside top structural schematic diagram of the invention；
Fig. 3 is mounting plate connection schematic diagram of the invention；
Fig. 4 is A enlarged drawing of the invention；
Fig. 5 is inner side elevational view of the invention；
Fig. 6 is work flow diagram of the invention.
In figure: 1, apparatus main body；2, LED display；3, drawstring；4, first sliding groove；5, sliding panel；6, second sliding slot；7,
Sliding block；8, instrument board；9, fixed plate；10, mounting plate；11, connecting rod；12, baffle；13, filter screen；14, air inlet pipe；15, it covers
Cylinder；16, flowmeter；17, pressure sensor；18, converter；19, single-chip microcontroller；20, dust plug.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-6 is please referred to, a kind of embodiment provided by the invention: a kind of vacuum generator detection device, including device master
Body 1, the bottom end of 1 front surface of apparatus main body is provided with instrument board 8, and the top of 1 side of apparatus main body is provided with second sliding slot 6,
The internal slide of second sliding slot 6 is connected with sliding block 7, and one end of sliding block 7 is fixed with connecting rod 11, and the other end of sliding block 7 is fixed
There is mounting plate 10, the top of apparatus main body 1 is provided with first sliding groove 4, and the end of connecting rod 11 is provided with to match with first sliding groove 4
The sliding panel 5 of conjunction, and the top of sliding panel 5 is provided with air inlet pipe 14, and the outside of air inlet pipe 14 is provided with sleeve 15, mounting plate
The top of 10 front surfaces is provided with baffle 12, and the bottom end of 10 front surface of mounting plate is equipped with LED display 2, apparatus main body 1 one
The inner wall at end is equipped with flowmeter 16 (model TB133-MF5706), and 1 one end inner wall of apparatus main body is located at flowmeter 16
Top is equipped with pressure sensor 17 (model GPD200), and the inner wall of 1 other end of apparatus main body is equipped with 18 (type of converter
Number it is AD7821), and 1 other end inner wall of apparatus main body is located at the top of converter 18 and is equipped with 19 (model of single-chip microcontroller
STC89C52)。
LED display 2 of the present invention is hidden in the inside of apparatus main body 1, and drawstring 3 is cooperated to make the device easy to carry,
Cooperate flexible sliding panel 5 that the device volume is greatly reduced simultaneously.
It please focus on refering to Figure 4 and 5, air inlet pipe 14 is internally provided with filter screen 13, and the material of sleeve 15 is rubber, and first
The top of sliding slot 4 is provided with the dust plug 20 with gas phase cooperation, and the material of dust plug 20 is rubber.
This kind of vacuum generator detection device was carried out by 13 pairs of the filter screen air entered in air inlet pipe 14 being arranged
Filter avoids using for a long time, and leading to interior instrument is only that dust obstruction causes it to be not normally functioning, and the dust plug 20 of setting exists
Dust is avoided to enter the inside of apparatus main body 1 when use, material is when the sleeve 15 of rubber avoids air inlet pipe 14 from working because close
Envelope does not rigorously cause measurement data to have error.
Please emphatically refering to fig. 1, the side at 1 top of apparatus main body is provided with through-hole, and apparatus main body 1 is equipped with by through-hole
Drawstring 3.
This kind of vacuum generator detection device passes through the carrying that through-hole is convenient for the device by the drawstring 3 of setting.
Please emphatically refering to fig. 1, the outside of sliding block 7 is provided with silica gel particle, and the inside of sliding block 7 is provided with limit plate, dress
The top for setting 1 front surface of main body is provided with the cavity matched with LED display 2, and the side inside apparatus main body 1 is provided with
Fixed plate 9, and the sliding groove matched with mounting plate 10 is provided in fixed plate 9.
This kind of vacuum generator detection device is by the silica gel particle of setting, and convenient for the promotion of sliding block 7, the cavity of setting is just
In observation LED display, the fixed plate 9 of setting makes the sliding of mounting plate 10 more firm.
It please focus on refering to figure, instrument board 8 and flowmeter 16 are electrically connected, and instrument board 8 electrically connects with pressure sensor 17
It connecing, pressure sensor 17 and flowmeter 16 and converter 18 are electrically connected, and converter 18 and single-chip microcontroller 19 are electrically connected,
Single-chip microcontroller 19 and LED display 2 are electrically connected.
This kind of vacuum generator detection device controls flowmeter 16 by operation instrument board 8 and pressure sensor 17 carries out work
By analog signal transmission to converter 18, converter 18 converts analog signal for work, pressure sensor 17 and flowmeter 16
As digital data transmission to single-chip microcontroller 19, single-chip microcontroller 19 converts digital signals into be shown in LED display 2 for picture signal
It shows and.
Working principle: first charging to the device, and when operating, dust plug 20 is removed, while sliding block 7 is upward
Press, 7 band of sliding block drives move in mounting plate 10 and 11 phase of connecting rod respectively, and baffle 12 leaves groove at this time, say LED is shown
In a groove, connecting rod 11 drives movement outside of the sliding panel 5 to first sliding groove 4 to the leakage cruelly of screen 2, until air inlet pipe 14 leaves first
Sliding slot 4 holds the device at this time, say air inlet pipe 14 is inserted into vacuum generator, and make sleeve 15 and vacuum generator tight
Closely connected conjunction, the operation of flowmeter 16 and pressure sensor 17 is controlled according to instrument board 8, and the gas that vacuum generator generates passed through
The filtering of strainer 13 enters in apparatus main body 1, and the gas that flowmeter 16 generates vacuum generator with pressure sensor 17 is examined
By analog signal transmission to converter 18, converter 18 converts analog signal for survey, pressure sensor 17 and flowmeter 16
As digital data transmission to single-chip microcontroller 19, single-chip microcontroller 19 converts digital signals into be shown in LED display 2 for picture signal
It shows and, complete the detection to vacuum generator, when the tests are completed, press movable slider 7 downwards, so that sliding panel 5 and baffle 12
It resets, completes the hiding protection of air inlet pipe 14 and LED display 2.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (8)
1. a kind of vacuum generator detection device, including apparatus main body (1), it is characterised in that: described device main body (1) front surface
Bottom end be provided with instrument board (8), and the top of apparatus main body (1) side is provided with second sliding slot (6), the second sliding slot
(6) internal slide is connected with sliding block (7), and one end of sliding block (7) is fixed with connecting rod (11), the sliding block (7) it is another
End is fixed with mounting plate (10), is provided at the top of described device main body (1) first sliding groove (4), the end of the connecting rod (11)
End is provided with the sliding panel (5) matched with first sliding groove (4), and air inlet pipe (14) are provided at the top of sliding panel (5), and into
It is provided on the outside of tracheae (14) sleeve (15), the top of mounting plate (10) front surface is provided with baffle (12), and is installed
The bottom end of plate (10) front surface is equipped with LED display (2), and the inner wall of described device main body (1) one end is equipped with flowmeter
(16), and apparatus main body (1) one end inner wall is located above flowmeter (16) and is equipped with pressure sensor (17), described device master
The inner wall of body (1) other end is equipped with converter (18), and apparatus main body (1) other end inner wall is located at converter (18)
Top is equipped with single-chip microcontroller (19).
2. a kind of vacuum generator detection device according to claim 1, it is characterised in that: the air inlet pipe (14) it is interior
Portion is provided with filter screen (13), and the material of the sleeve (15) is rubber.
3. a kind of vacuum generator detection device according to claim 1, it is characterised in that: described device main body (1) top
The side in portion is provided with through-hole, and apparatus main body (1) is equipped with drawstring (3) by through-hole.
4. a kind of vacuum generator detection device according to claim 1, it is characterised in that: before described device main body (1)
The top on surface is provided with the cavity matched with LED display (2), and the side of apparatus main body (1) inside is provided with fixation
Plate (9), and the sliding groove matched with mounting plate (10) is provided in fixed plate (9).
5. a kind of vacuum generator detection device according to claim 1, it is characterised in that: the first sliding groove (4)
Top is provided with the dust plug (20) with gas phase cooperation, and the material of dust plug (20) is rubber.
6. a kind of vacuum generator detection device according to claim 1, it is characterised in that: the outside of the sliding block (7)
It is provided with silica gel particle, and is provided with limit plate on the inside of sliding block (7).
7. a kind of vacuum generator detection device according to claim 1, it is characterised in that: the instrument board (8) and stream
Meter (16) is electrically connected, and instrument board (8) and pressure sensor (17) are electrically connected.
8. a kind of vacuum generator detection device according to claim 1, it is characterised in that: the pressure sensor (17)
It is electrically connected with flowmeter (16) and converter (18), and converter (18) and single-chip microcontroller (19) are electrically connected, the list
Piece machine (19) and LED display (2) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811644435.4A CN109799032A (en) | 2018-12-30 | 2018-12-30 | A kind of vacuum generator detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811644435.4A CN109799032A (en) | 2018-12-30 | 2018-12-30 | A kind of vacuum generator detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109799032A true CN109799032A (en) | 2019-05-24 |
Family
ID=66558213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811644435.4A Pending CN109799032A (en) | 2018-12-30 | 2018-12-30 | A kind of vacuum generator detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109799032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259664A (en) * | 2019-05-31 | 2019-09-20 | 安徽省宁国天成电工有限公司 | A kind of internal air exhausting mechanism of AB glue air exhauster |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2484702Y (en) * | 2001-05-09 | 2002-04-03 | 周学良 | Portable telescopic mobile telephone set |
| CN103063463A (en) * | 2013-01-03 | 2013-04-24 | 无锡隆盛科技股份有限公司 | Detection device of output pressure characteristics for vacuum regulator |
| CN103235009A (en) * | 2013-05-09 | 2013-08-07 | 济南市长清计算机应用公司 | Portable combustible gas detector |
| KR101420969B1 (en) * | 2013-02-21 | 2014-07-18 | (주)토탈솔루션 | Apparatus for displaying internal vacuum level of vacuum insulation panel |
| CN204373925U (en) * | 2014-09-19 | 2015-06-03 | 江阴市富仁高科股份有限公司 | A kind of fuel charger petroleum vapor recovery pick-up unit |
| CN205561937U (en) * | 2016-05-01 | 2016-09-07 | 雷阳 | Novel flowmeter for natural gas |
| CN206074178U (en) * | 2016-09-26 | 2017-04-05 | 安庆师范大学 | A kind of warning system that monitoring is shown for vacuometer |
| CN106554917A (en) * | 2016-03-30 | 2017-04-05 | 厦门医学高等专科学校 | Portable biometric precision detecting instrument and detection method |
| CN106556527A (en) * | 2016-12-01 | 2017-04-05 | 上海唐辉电子有限公司 | A kind of accurate air detection instrument with sealing structure |
| CN206505067U (en) * | 2017-03-05 | 2017-09-19 | 广州优保环保科技有限公司 | A kind of air methanol detection device |
| CN206517459U (en) * | 2017-03-01 | 2017-09-22 | 王伟 | Hand-held multi-screen digital device |
| CN206741672U (en) * | 2017-04-24 | 2017-12-12 | 江苏中信安全环境科技有限公司 | Portable poisonous harmful gas detection, alarm instrument |
| CN207036752U (en) * | 2017-08-18 | 2018-02-23 | 常州达亨自动化设备有限公司 | A kind of hydrogen fluoride moisture content monitors display device |
| CN207062919U (en) * | 2017-07-17 | 2018-03-02 | 宁波冶金勘察设计研究股份有限公司 | A kind of static penetrometer |
| CN207366292U (en) * | 2017-11-13 | 2018-05-15 | 宁夏中科精科检测技术有限公司 | A kind of prevention and control of air pollution sample devices |
| CN207424740U (en) * | 2017-09-14 | 2018-05-29 | 东莞市一众显示科技有限公司 | A kind of display screen with dust reduction capability |
| CN207764292U (en) * | 2018-02-13 | 2018-08-24 | 泉州迅捷工业设计服务有限公司 | A kind of portable intelligent current measuring instrument table |
| CN108872485A (en) * | 2018-06-28 | 2018-11-23 | 深圳市有钱科技有限公司 | A kind of Portable combustible gas detector |
| CN208227090U (en) * | 2018-05-23 | 2018-12-11 | 云谷（固安）科技有限公司 | Display device |
| CN109060253A (en) * | 2018-09-06 | 2018-12-21 | 潍坊思博精工科技有限公司 | A kind of diesel engine cylinder head tightness measuring device |
-
2018
- 2018-12-30 CN CN201811644435.4A patent/CN109799032A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2484702Y (en) * | 2001-05-09 | 2002-04-03 | 周学良 | Portable telescopic mobile telephone set |
| CN103063463A (en) * | 2013-01-03 | 2013-04-24 | 无锡隆盛科技股份有限公司 | Detection device of output pressure characteristics for vacuum regulator |
| KR101420969B1 (en) * | 2013-02-21 | 2014-07-18 | (주)토탈솔루션 | Apparatus for displaying internal vacuum level of vacuum insulation panel |
| CN103235009A (en) * | 2013-05-09 | 2013-08-07 | 济南市长清计算机应用公司 | Portable combustible gas detector |
| CN204373925U (en) * | 2014-09-19 | 2015-06-03 | 江阴市富仁高科股份有限公司 | A kind of fuel charger petroleum vapor recovery pick-up unit |
| CN106554917A (en) * | 2016-03-30 | 2017-04-05 | 厦门医学高等专科学校 | Portable biometric precision detecting instrument and detection method |
| CN205561937U (en) * | 2016-05-01 | 2016-09-07 | 雷阳 | Novel flowmeter for natural gas |
| CN206074178U (en) * | 2016-09-26 | 2017-04-05 | 安庆师范大学 | A kind of warning system that monitoring is shown for vacuometer |
| CN106556527A (en) * | 2016-12-01 | 2017-04-05 | 上海唐辉电子有限公司 | A kind of accurate air detection instrument with sealing structure |
| CN206517459U (en) * | 2017-03-01 | 2017-09-22 | 王伟 | Hand-held multi-screen digital device |
| CN206505067U (en) * | 2017-03-05 | 2017-09-19 | 广州优保环保科技有限公司 | A kind of air methanol detection device |
| CN206741672U (en) * | 2017-04-24 | 2017-12-12 | 江苏中信安全环境科技有限公司 | Portable poisonous harmful gas detection, alarm instrument |
| CN207062919U (en) * | 2017-07-17 | 2018-03-02 | 宁波冶金勘察设计研究股份有限公司 | A kind of static penetrometer |
| CN207036752U (en) * | 2017-08-18 | 2018-02-23 | 常州达亨自动化设备有限公司 | A kind of hydrogen fluoride moisture content monitors display device |
| CN207424740U (en) * | 2017-09-14 | 2018-05-29 | 东莞市一众显示科技有限公司 | A kind of display screen with dust reduction capability |
| CN207366292U (en) * | 2017-11-13 | 2018-05-15 | 宁夏中科精科检测技术有限公司 | A kind of prevention and control of air pollution sample devices |
| CN207764292U (en) * | 2018-02-13 | 2018-08-24 | 泉州迅捷工业设计服务有限公司 | A kind of portable intelligent current measuring instrument table |
| CN208227090U (en) * | 2018-05-23 | 2018-12-11 | 云谷（固安）科技有限公司 | Display device |
| CN108872485A (en) * | 2018-06-28 | 2018-11-23 | 深圳市有钱科技有限公司 | A kind of Portable combustible gas detector |
| CN109060253A (en) * | 2018-09-06 | 2018-12-21 | 潍坊思博精工科技有限公司 | A kind of diesel engine cylinder head tightness measuring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259664A (en) * | 2019-05-31 | 2019-09-20 | 安徽省宁国天成电工有限公司 | A kind of internal air exhausting mechanism of AB glue air exhauster |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202916165U (en) | Instrument for continually and automatically monitoring atmospheric fine-particulates by adopting Beta ray method | |
| CN109799032A (en) | A kind of vacuum generator detection device | |
| CN206583886U (en) | A kind of portable environment gas detecting instrument | |
| CN201107073Y (en) | Electronic type gas meter | |
| CN210487160U (en) | Gas circuit assembly and gas pressure calibrator | |
| CN201107068Y (en) | Electronic type gas meter for household | |
| CN217820238U (en) | Novel initiative breathing type electron nose | |
| CN207280701U (en) | A kind of online test device for air tightness | |
| CN207351760U (en) | A kind of air and dust two-way sampling apparatus | |
| CN205506627U (en) | Filter paper closing device of beta - ray method monitoring of atmospheric particulates equipment | |
| CN203479341U (en) | Gas flowmeter | |
| CN208269983U (en) | A kind of air volume meter based on differential pressure pickup | |
| CN218584769U (en) | Air detector | |
| CN207215216U (en) | A kind of gas flowmeter | |
| CN207964558U (en) | A kind of intelligent air detection device | |
| CN207395813U (en) | A kind of self-interacting type precession vortex flow apparatus under pipe cyclone blade wear | |
| CN206348314U (en) | A kind of multi-functional oxygen detection means | |
| CN206545611U (en) | A kind of novel evacuated generator | |
| CN218297494U (en) | Airtightness testing device for medical instrument | |
| CN211612018U (en) | Stifled pressure equipment is prevented with filter screen to oil field filtration | |
| CN108970661A (en) | A kind of Manual liquid transfering device | |
| CN217304235U (en) | Flat-film pressure sensor with gas collection cavity for measuring dynamic air injection pressure | |
| CN209198160U (en) | A kind of portable room air sampling instrument | |
| CN212482561U (en) | Ambient air detection device | |
| CN2224413Y (en) | Gas-pressure defining device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190524 |
|
| RJ01 | Rejection of invention patent application after publication |