CN201837494U - Spring pipe type pressure gauge with plastic gauge shell - Google Patents

Spring pipe type pressure gauge with plastic gauge shell Download PDF

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Publication number
CN201837494U
CN201837494U CN2010201355681U CN201020135568U CN201837494U CN 201837494 U CN201837494 U CN 201837494U CN 2010201355681 U CN2010201355681 U CN 2010201355681U CN 201020135568 U CN201020135568 U CN 201020135568U CN 201837494 U CN201837494 U CN 201837494U
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CN
China
Prior art keywords
watchcase
hole
gauge
spring
tube
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.)
Expired - Fee Related
Application number
CN2010201355681U
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Chinese (zh)
Inventor
孔载明
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.)
HANGZHOU JIXING INSTRUMENT MACHINERY CO Ltd
Original Assignee
HANGZHOU JIXING INSTRUMENT MACHINERY 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 HANGZHOU JIXING INSTRUMENT MACHINERY CO Ltd filed Critical HANGZHOU JIXING INSTRUMENT MACHINERY CO Ltd
Priority to CN2010201355681U priority Critical patent/CN201837494U/en
Application granted granted Critical
Publication of CN201837494U publication Critical patent/CN201837494U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a spring pipe type pressure gauge with a plastic gauge shell, belonging to the field of pressure measurement devices. The existing structure with the metal gauge shell is high in cost and inconvenient in processing. The spring pipe type pressure gauge comprises a gauge cover assembled on the gauge shell and a pointer, a dial and a spring pipe which are arranged in the gauge shell in sequence; the tail end of the gauge shell is provided with a through hole; the dial is clamped and fixed in the gauge shell; and the pointer is connected with a free end of the spring pipe. The spring pipe type pressure gauge is characterized in that the gauge shell is made of plastics, a fixed end of the spring pipe is a metal pipe embedded into the through hole, the upper end of the metal pipe is fixed at an opening on the through hole, and the lower end of the metal pipe is embedded with a conical pin with a through hole. The spring pipe type pressure gauge has the advantages that the manufacturing cost is low, the processing is convenient, and the use is safe and sensitive.

Description

Spring-tube type plastic meter shell tensimeter
[technical field]
The utility model relates to a kind of measurement mechanism, a kind of specifically spring-tube type plastic meter shell tensimeter.
[background technology]
The instrument of gas, fluid pressure in the indication mechanism in the prior art, be typically provided with a bourdon tube and (also claim Bourdon tube, when bearing different pressures in the pipe and outside the pipe, then in its limit of elasticity, produce distortion), the bourdon tube stiff end connects with gas, liquid systems and is connected, and the other end is connected for the sealing free end and with pointer.The pressure of gas, liquid systems changes and causes the deformation of bourdon tube hypertonic, and the free end of bourdon tube drives pointer and rotates, and indicates force value on index dial.The tensimeter of this structure is made by metal material (as copper) usually, cost height, processing inconvenience.In order to produce high-precision tensimeter, the part scrappage is higher, equally also increases production cost.
[utility model content]
The technical assignment of the technical problems to be solved in the utility model and proposition is the defective that overcomes prior art, and a kind of low cost of manufacture, the higher spring-tube type plastic meter shell tensimeter of measuring accuracy are provided.For this reason, the utility model adopts following technical scheme:
Spring-tube type plastic meter shell tensimeter, comprise the table lid that is assemblied in watchcase and be built in watchcase interior pointer, dial plate and bourdon tube successively, the watchcase end is provided with through hole, described dial plate is fixed in the watchcase, pointer is connected with the bourdon tube free end, it is characterized in that described watchcase is that plastic material is made, described bourdon tube stiff end is for embedding the metal tube in the through hole, and described metal tube upper end is fixed on through hole upper shed place, the embedded taper pin that has through hole in lower end.It is a lot of than metal materials such as the copper reduction of prior art to adopt plastics to make the watchcase cost, because gas, the pressure of liquid systems changes when causing the deformation of bourdon tube hypertonic, the free end of bourdon tube sealing produces displacement of the lines or angular displacement, so stiff end must be maintained fixed, the utility model is in the contact area that has enlarged by metal tube with the watchcase through hole, simultaneously at the inner taper pin that embeds of metal tube, increase the pressure between metal pipe-wall and the watchcase through hole, thereby improve between the two friction force and impermeability, taper pin can increase the more depths that is pushed into metal tube gradually along with pressure, friction force also increases thereupon, in the through hole that is fixed on watchcase that metal tube is firm, it is excessive and the possibility of deviating from watchcase guarantees that measuring accuracy and tensimeter are safe in utilization to reduce bourdon tube stiff end displacement or pressure.
For the improving and replenishing of technique scheme, can increase following technical characterictic or its combination:
Described watchcase end is arranged with the tubular inserts outside through hole.Because the material characteristic of plastic meter shell, after preventing that taper pin from embedding metal tube, make metal tube extend out distortion, set up an inserts in the watchcase outside metal tube and prevent that from the outside by the plastic meter shell that is wrapped on the metal tube metal tube from extending out, taper pin and inserts are from the deformation of inside and outside both direction restriction metal tube, thereby guarantee closely cooperating of taper pin and metal tube, metal tube is securely fixed in the through hole of watchcase end.
It is up-small and down-big trapezoidal that described taper pin longitudinal section is.Can increase pressure gradually by the degree of depth that pushes taper pin, improve friction force metal tube.
Described inserts outer wall is provided with groove, and the terminal correspondence of described watchcase is provided with fin.Increase the friction force of inserts and watchcase end, prevent that both from throwing off.
Upper shed place of described through hole is provided with big end at last hydraucone, and the metal tube upper end is adhesively fixed on hydraucone.Metal tube and hydraucone cover postpone viscose glue can accumulate in the hydraucone place, form the larger area adhesive spots, improve fastness.
Be provided with filtrator in the described inserts.During pressure detection, but the impurity in the filtering gas, liquid prevents that their burn intos from damaging tensimeter.
The utility model adopts plastics to make watchcase, simultaneously by setting up taper pin and inserts, by both to clamping action two-way inside and outside the metal tube, increased friction force, prevent further that the bourdon tube stiff end from moving or pressurized after break away from watchcase, obviously reduced production cost and be convenient to processing under measurement range and the prerequisite safe in utilization guaranteeing, the cost of parts of scrapping is also low.
[description of drawings]
Fig. 1 is the package assembly synoptic diagram of the utility model embodiment;
Fig. 2 is the cross-sectional view of the utility model embodiment;
Fig. 3 is hit by a bullet the A of reed pipe to view for Fig. 1.
Among the figure: 1, table lid, 2, pointer, 3, dial plate, 4, bourdon tube, 5, watchcase, 6, taper pin, 7, filtrator, 8, inserts, 9, metal tube.
[embodiment]
Below in conjunction with specification drawings and specific embodiments substantive distinguishing features of the present utility model is further described.
As Figure 1-3, spring-tube type plastic meter shell tensimeter comprises the table lid 1 that is assemblied in watchcase 5 and is built in watchcase interior pointer 2, dial plate 3 and bourdon tube 4 successively that the watchcase end is provided with through hole, and the watchcase end is arranged with tubular inserts 8 outside through hole.The inserts outer wall is provided with groove, and the terminal correspondence of watchcase is provided with fin.Dial plate is fixed in the watchcase, pointer is connected with output shaft on the bourdon tube free end by hand rest, watchcase is that plastic material is made, and the bourdon tube stiff end is for embedding the metal tube 9 in the through hole, and the metal tube upper end is fixed on through hole upper shed place, the embedded taper pin 6 that has through hole in lower end.It is up-small and down-big trapezoidal that the taper pin longitudinal section is.Through hole upper shed place is provided with big end at last hydraucone, and the metal tube upper end is adhesively fixed on the hydraucone place.Be provided with filtrator 7 in the inserts.
Spring-tube type plastic meter shell tensimeter shown in above Fig. 1-3 is a specific embodiment of the utility model, the utility model substantive distinguishing features and progress have been embodied, can carry out the modification of aspects such as shape, specification, material and color to it according to the use needs of reality, seldom give unnecessary details at this.

Claims (6)

1. spring-tube type plastic meter shell tensimeter, comprise the table lid (1) that is assemblied in watchcase (5) and be built in watchcase interior pointer (2), dial plate (3) and bourdon tube (4) successively, the watchcase end is provided with through hole, described dial plate is fixed in the watchcase, pointer is connected with the bourdon tube free end, it is characterized in that described watchcase is that plastic material is made, described bourdon tube stiff end is for embedding the metal tube (9) in the through hole, and described metal tube upper end is fixed on through hole upper shed place, the embedded taper pin (6) that has through hole in lower end.
2. spring-tube type plastic meter shell tensimeter according to claim 1 is characterized in that described watchcase end is arranged with tubular inserts (8) outside through hole.
3. spring-tube type plastic meter shell tensimeter according to claim 2 is characterized in that described taper pin longitudinal section is up-small and down-big trapezoidal.
4. spring-tube type plastic meter shell tensimeter according to claim 2 is characterized in that described inserts outer wall is provided with groove, and the terminal correspondence of described watchcase is provided with fin.
5. spring-tube type plastic meter shell tensimeter according to claim 2 is characterized in that upper shed place of described through hole is provided with big end at last hydraucone, and the metal tube upper end is adhesively fixed on hydraucone.
6. according to claim 2 or 3 described spring-tube type plastic meter shell tensimeters, it is characterized in that being provided with in the described inserts filtrator (7).
CN2010201355681U 2010-03-19 2010-03-19 Spring pipe type pressure gauge with plastic gauge shell Expired - Fee Related CN201837494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201355681U CN201837494U (en) 2010-03-19 2010-03-19 Spring pipe type pressure gauge with plastic gauge shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201355681U CN201837494U (en) 2010-03-19 2010-03-19 Spring pipe type pressure gauge with plastic gauge shell

Publications (1)

Publication Number Publication Date
CN201837494U true CN201837494U (en) 2011-05-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201355681U Expired - Fee Related CN201837494U (en) 2010-03-19 2010-03-19 Spring pipe type pressure gauge with plastic gauge shell

Country Status (1)

Country Link
CN (1) CN201837494U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105136382A (en) * 2015-05-27 2015-12-09 慈溪市华东压力表有限公司 Pressure gauge plastic joint and spring tube connecting structure and production method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105136382A (en) * 2015-05-27 2015-12-09 慈溪市华东压力表有限公司 Pressure gauge plastic joint and spring tube connecting structure and production method thereof
CN105136382B (en) * 2015-05-27 2018-01-30 慈溪市华东压力表有限公司 A kind of attachment structure and its production method of pressure gauge adapter of plastic and bourdon tube

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110518

Termination date: 20180319

CF01 Termination of patent right due to non-payment of annual fee