CN108254047A - A kind of pneumatic weighing device - Google Patents

A kind of pneumatic weighing device Download PDF

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Publication number
CN108254047A
CN108254047A CN201611248722.4A CN201611248722A CN108254047A CN 108254047 A CN108254047 A CN 108254047A CN 201611248722 A CN201611248722 A CN 201611248722A CN 108254047 A CN108254047 A CN 108254047A
Authority
CN
China
Prior art keywords
piston
piston cylinder
cylinder
boit
annular stop
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
Application number
CN201611248722.4A
Other languages
Chinese (zh)
Inventor
毕伟
徐杨
刘生辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Huahengweiye Weighing System Co Ltd
Original Assignee
Tianjin Huahengweiye Weighing System Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Huahengweiye Weighing System Co Ltd filed Critical Tianjin Huahengweiye Weighing System Co Ltd
Priority to CN201611248722.4A priority Critical patent/CN108254047A/en
Publication of CN108254047A publication Critical patent/CN108254047A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G5/00Weighing apparatus wherein the balancing is effected by fluid action
    • G01G5/006Weighing apparatus wherein the balancing is effected by fluid action with pneumatic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G5/00Weighing apparatus wherein the balancing is effected by fluid action
    • G01G5/003Weighing apparatus wherein the balancing is effected by fluid action load-cell construction or mountings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention discloses a kind of pneumatic weighing devices, including meausring apparatus and feeder, the meausring apparatus includes a piston cylinder, piston is movably installed in piston cylinder, and piston is connected with piston boit, piston boit is extended on the outside of the upper end of piston cylinder, and sealing ring is cased on the outside of piston, determinand is placed on weighing plate by the present invention, baroceptor measures pressure change at this time, it can realize that the weight of determinand calculates in this way, this measurement method is without complicated mechanical structure, therefore it is safer for the measurement of dangerous material, the annular stop circle of protrusion is installed on the outer wall of piston boit simultaneously, and the upper surface of piston cylinder is equipped with the limit protrusion opposite with annular stop circle, overweight determinand can be avoided the occurrence of using limit protrusion and annular stop circle to damage equipment.

Description

A kind of pneumatic weighing device
Technical field
The present invention relates to weighing device, specifically a kind of pneumatic weighing device.
Background technology
Meausring apparatus has mechanical weighing device and electrical type weighing device at present, since the measurement for dangerous material comes It says, existing electronic device is likely to result in the situation of inflammable thing burning and explosion, for mechanical equipment, Its precision and complexity are denounced by user, therefore are difficult to meet practical use demand.
Invention content
The purpose of the present invention is to provide a kind of pneumatic weighing device, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical solution:
A kind of pneumatic weighing device, including meausring apparatus and feeder, the meausring apparatus includes a piston cylinder, piston cylinder Inside be movably installed with piston, and piston is connected with piston boit, piston boit is extended on the outside of the upper end of piston cylinder, by piston cylinder, Piston and piston boit form piston structure, and sealing ring is cased on the outside of piston, so as to ensure the airtight of entire piston structure Property;The inner cavity of the piston cylinder is connected with gas tube, and air inlet of the gas tube in piston cylinder inner cavity is located at the lower section of piston Position is equipped with pressure regulation air valve on gas tube, and pressure regulation air valve is utilized to realize the air pressure adjustment of piston cylinder inner cavity;The piston cylinder Intracavity bottom is equipped with baroceptor, and baroceptor connects the pressure transmitter on the outside of piston cylinder by conducting wire, utilizes Baroceptor realizes the measurement of barometric information;Weighing plate is installed at the top of the piston boit, by the way that determinand is put On weighing plate, baroceptor measures pressure change at this time, can realize that the weight of determinand calculates in this way;The piston boit Outer wall on be installed with the annular stop circle of protrusion, and the upper surface of piston cylinder is equipped with the limiting opposite with annular stop circle Protrusion can avoid the occurrence of overweight determinand using limit protrusion and annular stop circle and equipment is damaged.
As further embodiment of the present invention:The inner cavity of the piston cylinder is also communicated with relief tube, and the end of relief tube Relief valve is installed, relief tube is located at the lower position of piston in the gas outlet of piston cylinder inner cavity.
As further scheme of the invention:Pressure gauge is also equipped on the gas tube, using pressure gauge convenient for real The adjusting of existing initial pressure.
Compared with prior art, the beneficial effects of the invention are as follows:Determinand is placed on weighing plate by the present invention, at this time air pressure Sensor measures pressure change, can realize that the weight of determinand calculates in this way, and this measurement method is without complicated machinery knot Structure, thus it is safer for the measurement of dangerous material, while the annular limit of protrusion is installed on the outer wall of piston boit Position circle, and the upper surface of piston cylinder is equipped with the limit protrusion opposite with annular stop circle, utilizes limit protrusion and annular stop Circle can avoid the occurrence of overweight determinand and equipment is damaged.
Description of the drawings
Fig. 1 is a kind of structure diagram of pneumatic weighing device of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of pneumatic weighing device, including meausring apparatus and feeder, institute It states meausring apparatus and includes a piston cylinder 1, be movably installed with piston, and piston is connected with piston boit 2 in piston cylinder 1, piston boit 2 prolongs On the outside of the upper end for extending to piston cylinder 1, piston structure, and the outer sheath of piston are formed by piston cylinder 1, piston and piston boit 2 There is sealing ring, so as to ensure the air-tightness of entire piston structure;The inner cavity of the piston cylinder 1 is connected with gas tube 4, and inflates Air inlet of the pipe 4 in 1 inner cavity of piston cylinder is located at the lower position of piston, is equipped with pressure regulation air valve 6 on gas tube 4, utilizes pressure regulation Air valve 6 realizes the air pressure adjustment of 1 inner cavity of piston cylinder;The intracavity bottom of the piston cylinder 1 is equipped with baroceptor 9, and air pressure Sensor 9 connects the pressure transmitter 10 in 1 outside of piston cylinder by conducting wire, and the survey of barometric information is realized using baroceptor 9 Amount;The top of the piston boit 2 is installed with weighing plate 3, by the way that determinand is placed on weighing plate, baroceptor at this time 9 measure pressure change, can realize that the weight of determinand calculates in this way;Protrusion is installed on the outer wall of the piston boit 2 Annular stop circle 11, and the upper surface of piston cylinder 1 be equipped with the limit protrusion 12 opposite with annular stop circle 11, utilize limit convex It rises and annular stop circle 11 can avoid the occurrence of overweight determinand and equipment is damaged.
The inner cavity of the piston cylinder 1 is also communicated with relief tube 7, and the end of relief tube 7 is equipped with relief valve 8, relief tube 7 It is located at the lower position of piston in the gas outlet of 1 inner cavity of piston cylinder.
Pressure gauge 5 is also equipped on the gas tube 4, the adjusting of initial pressure is easy to implement using pressure gauge 5.
The present invention operation principle be:Determinand is placed on weighing plate, baroceptor 9 measures pressure change at this time, It can realize that the weight of determinand calculates in this way, mechanical structure of this measurement method without complexity, therefore for dangerous material It is safer for measurement, while the annular stop circle 11 of protrusion is installed on the outer wall of piston boit 2, and piston cylinder 1 Upper surface is equipped with the limit protrusion 12 opposite with annular stop circle 11, can be to avoid using limit protrusion and annular stop circle 11 There is overweight determinand to damage equipment.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie In the case of 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 Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art The other embodiment being appreciated that.

Claims (3)

1. a kind of pneumatic weighing device, including meausring apparatus and feeder, the meausring apparatus includes a piston cylinder, piston Piston is movably installed in cylinder, and piston is connected with piston boit, piston boit is extended on the outside of the upper end of piston cylinder, and piston is outer Side is cased with sealing ring;It is characterized in that, the inner cavity of the piston cylinder is connected with gas tube, and gas tube is in piston cylinder inner cavity Air inlet is located at the lower position of piston, and pressure regulation air valve is equipped on gas tube;The intracavity bottom of the piston cylinder is equipped with gas Pressure sensor, and baroceptor connects the pressure transmitter on the outside of piston cylinder by conducting wire, the top of the piston boit is fixed Weighing plate is installed;The annular stop circle of protrusion is installed on the outer wall of the piston boit, and the upper surface of piston cylinder is set There is the limit protrusion opposite with annular stop circle.
2. pneumatic weighing device according to claim 1, which is characterized in that the inner cavity of the piston cylinder is also communicated with pressure release Pipe, and the end of relief tube is equipped with relief valve, relief tube is located at the lower position of piston in the gas outlet of piston cylinder inner cavity.
3. pneumatic weighing device according to claim 1, which is characterized in that be also equipped with pressure gauge on the gas tube.
CN201611248722.4A 2016-12-29 2016-12-29 A kind of pneumatic weighing device Pending CN108254047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611248722.4A CN108254047A (en) 2016-12-29 2016-12-29 A kind of pneumatic weighing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611248722.4A CN108254047A (en) 2016-12-29 2016-12-29 A kind of pneumatic weighing device

Publications (1)

Publication Number Publication Date
CN108254047A true CN108254047A (en) 2018-07-06

Family

ID=62721516

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611248722.4A Pending CN108254047A (en) 2016-12-29 2016-12-29 A kind of pneumatic weighing device

Country Status (1)

Country Link
CN (1) CN108254047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111924189A (en) * 2020-07-30 2020-11-13 胡中大 Assembly line weighing and packaging table with chain type plate scale

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU802807A1 (en) * 1979-02-02 1981-02-07 Харьковский Ордена Ленина Политех-Нический Институт Им. B.И.Ленина Pneumatic weigher
CN1256218A (en) * 1999-12-08 2000-06-14 高瞩宇 Protector for vehicle or vibration bin weighing sensor
CN1851417A (en) * 2006-05-23 2006-10-25 杨继新 Weighing apparatus
CN202115911U (en) * 2010-11-25 2012-01-18 软控股份有限公司 Hopper scale
CN203069243U (en) * 2013-01-12 2013-07-17 路汉芝 Hydraulic weighing sensor for measuring hopper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU802807A1 (en) * 1979-02-02 1981-02-07 Харьковский Ордена Ленина Политех-Нический Институт Им. B.И.Ленина Pneumatic weigher
CN1256218A (en) * 1999-12-08 2000-06-14 高瞩宇 Protector for vehicle or vibration bin weighing sensor
CN1851417A (en) * 2006-05-23 2006-10-25 杨继新 Weighing apparatus
CN202115911U (en) * 2010-11-25 2012-01-18 软控股份有限公司 Hopper scale
CN203069243U (en) * 2013-01-12 2013-07-17 路汉芝 Hydraulic weighing sensor for measuring hopper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111924189A (en) * 2020-07-30 2020-11-13 胡中大 Assembly line weighing and packaging table with chain type plate scale

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Application publication date: 20180706