CN204988624U - Precision pressure gauge - Google Patents

Precision pressure gauge Download PDF

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Publication number
CN204988624U
CN204988624U CN201520752468.6U CN201520752468U CN204988624U CN 204988624 U CN204988624 U CN 204988624U CN 201520752468 U CN201520752468 U CN 201520752468U CN 204988624 U CN204988624 U CN 204988624U
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CN
China
Prior art keywords
watchcase
gear drive
pressure gauge
precision pressure
hinge spring
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.)
Active
Application number
CN201520752468.6U
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Chinese (zh)
Inventor
胥金园
王金美
陆建军
侯顺兴
孙福桂
郭兆健
杨新军
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.)
Shanghai Jingpu Electromechanical Technology Co Ltd
Original Assignee
Shanghai Jingpu Electromechanical Technology Co Ltd
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Publication date
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Priority to CN201520752468.6U priority Critical patent/CN204988624U/en
Application granted granted Critical
Publication of CN204988624U publication Critical patent/CN204988624U/en
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Abstract

The utility model relates to a, especially, related to a precision pressure gauge, including watchcase (6) and cover circle (7), cover circle (7) kayser is on watchcase (6), and watchcase (6) lower extreme and joint (5) fixed connection set up diaphragm chamber and hinge spring (8) in watchcase (6), and the diaphragm chamber is connected with gear drive, and hinge spring (8) cover is established on gear drive, and gear drive goes up pointer (1) that sets up with dial plate (4) and is connected. The utility model discloses a set up the hinge spring on gear drive, improved the measurement precision of manometer to and have the mirror surface ring at the scale line, make the meter reading more clear accurate, the pleasing to the eye novelty of appearance.

Description

Precision pressure gauge
Technical field
The utility model relates to, and has particularly related to a kind of precision pressure gauge.
Background technology
At present, precision pressure gauge is mainly used to verify industrial ordinarily manometer and also can be used for the pressure of precision measurement to the various media of corrosivity, noncrystalline, non-condensable, and traditional gauge measurement precision is low, and cost is high, display and use inconvenient.
Summary of the invention
The utility model is low for gauge measurement precision traditional in prior art, and cost is high, and the shortcomings such as display and use inconvenience, providing a kind of by arranging hinge spring on gear drive, improve manometric measurement precision.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Precision pressure gauge, comprises watchcase and encloses with cover, and cover circle kayser is on watchcase, watchcase lower end is fixedly connected with joint, and arrange bellows and hinge spring in watchcase, bellows is connected with gear drive, hinge spring is set on gear drive, and gear drive is connected with the pointer that dial plate is arranged.Under the pressure effect of measured medium, the end of hinge spring is forced to produce corresponding elastic deformation---displacement, give amplification by means of pull bar through the transmission of gear drive, indicated on scale by by measured value by the pointer being fixed on gear shaft.
As preferably, between cover circle and watchcase, O-ring seal is set and is tightly connected.Watchcase protection inner structure guarantees sealing property, and cover circle protection inner structure is stablized, and guarantees sealing property simultaneously.
As preferably, gear drive comprises driving lever and gear shaft, and hinge spring is connected with driving lever, and gear shaft is connected with pointer.
As preferably, dial plate arranges zeroing, zeroing is connected with pointer.
As preferably, bellows comprises the monolithic of two thickness 0.052mm by accurate Plasma Welding.
As preferably, the diameter of bellows is 100mm.
As preferably, dial plate arranges reticle, reticle has minute surface ring.Have minute surface ring at reticle, make meter reading more accurately clear, good looking appearance is novel.Instrument is furnished with the scale scale of close scale division, and the scale scale of this close scale division has higher than the high resolving power of GENERAL TYPE with precision instrument several times, and most high scale precision reaches 0.05% ~ 0.08%, but not the reading accuracy of close scale division is only 0.2% ~ 0.4%.Visible, this close scale division instrument can realize very high reading accuracy.
The utility model is owing to have employed above technical scheme, there is significant technique effect: the utility model, by arranging hinge spring on gear drive, improves manometric measurement precision, and has minute surface ring at reticle, make meter reading more accurately clear, good looking appearance is novel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the rear view of Fig. 1.
The toponym that in above accompanying drawing, each number designation refers to is as follows: wherein 1-pointer, 3-zeroing, 4-dial plate, 5-joint, 6-watchcase, 7-cover circle, 8-hinge spring.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with accompanying drawing 1 to Fig. 3:
Embodiment 1
Precision pressure gauge, as shown in Figure 1, comprise watchcase 6 and cover circle 7, cover circle 7 kayser is on watchcase 6, watchcase 6 lower end is fixedly connected with joint 5, and arrange bellows and hinge spring 8 in watchcase 6, bellows is connected with gear drive, hinge spring 8 is set on gear drive, and gear drive is connected with the pointer 1 that dial plate 4 is arranged.Under the pressure effect of measured medium, the end of hinge spring 8 is forced to produce corresponding elastic deformation---displacement, give amplification by means of pull bar through the transmission of gear drive, indicated on scale by by measured value by the pointer being fixed on gear shaft.
Arrange O-ring seal between cover circle 7 and watchcase 6 to be tightly connected.Watchcase protection inner structure guarantees sealing property, and cover circle protection inner structure is stablized, and guarantees sealing property simultaneously.Gear drive comprises driving lever and gear shaft, and hinge spring 8 is connected with driving lever, and gear shaft is connected with pointer 1.
Dial plate 4 is arranged zeroing 3, zeroing 3 is connected with pointer 1.Bellows comprises the monolithic of two thickness 0.052mm by accurate Plasma Welding.The diameter of bellows is 100mm.Dial plate 4 arranges reticle, and reticle has minute surface ring.Have minute surface ring at reticle, make meter reading more accurately clear, good looking appearance is novel.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.

Claims (7)

1. precision pressure gauge, comprise watchcase (6) to enclose (7) with cover, it is characterized in that: cover circle (7) kayser is on watchcase (6), watchcase (6) lower end is fixedly connected with joint (5), bellows and hinge spring (8) are set in watchcase (6), bellows is connected with gear drive, hinge spring (8) is set on gear drive, and gear drive is connected with the upper pointer (1) arranged of dial plate (4).
2. precision pressure gauge according to claim 1, is characterized in that: arrange O-ring seal between cover circle (7) and watchcase (6) and be tightly connected.
3. precision pressure gauge according to claim 1, is characterized in that: gear drive comprises driving lever and gear shaft, and hinge spring (8) is connected with driving lever, and gear shaft is connected with pointer (1).
4. precision pressure gauge according to claim 1, is characterized in that: dial plate (4) is arranged zeroing (3), and zeroing (3) is connected with pointer (1).
5. precision pressure gauge according to claim 1, is characterized in that: bellows comprises the monolithic of two thickness 0.052mm by accurate Plasma Welding.
6. precision pressure gauge according to claim 1, is characterized in that: the diameter of bellows is 100mm.
7. precision pressure gauge according to claim 1, is characterized in that: (4) arrange reticle with dial plate, and reticle has minute surface ring.
CN201520752468.6U 2015-09-25 2015-09-25 Precision pressure gauge Active CN204988624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520752468.6U CN204988624U (en) 2015-09-25 2015-09-25 Precision pressure gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520752468.6U CN204988624U (en) 2015-09-25 2015-09-25 Precision pressure gauge

Publications (1)

Publication Number Publication Date
CN204988624U true CN204988624U (en) 2016-01-20

Family

ID=55122982

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520752468.6U Active CN204988624U (en) 2015-09-25 2015-09-25 Precision pressure gauge

Country Status (1)

Country Link
CN (1) CN204988624U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106404281A (en) * 2016-11-24 2017-02-15 南京科技职业学院 Simple high-precision pressure transmitter verification device and implementation method thereof
CN106644263A (en) * 2016-12-09 2017-05-10 陈春来 Multi-reading error-free pressure meter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106404281A (en) * 2016-11-24 2017-02-15 南京科技职业学院 Simple high-precision pressure transmitter verification device and implementation method thereof
CN106644263A (en) * 2016-12-09 2017-05-10 陈春来 Multi-reading error-free pressure meter

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