CN201289416Y

CN201289416Y - Pressure gauge

Info

Publication number: CN201289416Y
Application number: CNU200820188249XU
Authority: CN
Inventors: 于景华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-11
Filing date: 2008-09-11
Publication date: 2009-08-12
Anticipated expiration: 2018-09-11

Abstract

The utility model discloses a pressure gauge which comprises a gauge connector. A machine core rack is mounted on the gauge connector. A channel communicated with a fluid pipeline is arranged on the gauge connector; a spring tube is fixedly arranged at the outlet of the channel; a rotatable machine core shaft is mounted on the machine core rack; a transmission device is arranged between the spring tube and the machine core shaft; the spring tube is a torsion spring tube which can generate torsionally elastic deformation, and components are reduced, thereby enabling the structure to be simpler, reducing the cost, reducing the welding points, and prolonging the service life.

Description

Tensimeter

Technical field

The utility model relates to the tensimeter technical field, relates in particular to the mechanical compression table that a kind of elastic deformation by sensitive element comes gaging pressure value or vacuum value.

Background technology

Tensimeter is to be used for meter fluid (gas, liquid) instrument of pressure, by showing interior sensitive element (as C type pipe, spiral pipe, coil pipe etc.) elastic deformation, cause the pipe end displacement, its displacement is amplified by mechanical transmission mechanism, by core frame in the table pressure deformation is conducted to pointer, causing that pointer rotates shows pressure, measure machine, water in equipment or the container, steam, the pressure of pressurized air and other neutral solution bodies or gas, C type bourdon tube and mechanical transmission mechanism in the existing tensimeter, the structure more complicated, parts are many, and relative cost is higher, pad is many, and the life-span is low.

The utility model content

Technical problem to be solved in the utility model provides a kind of tensimeter, and this tensimeter is simple in structure, and cost is low, and long service life.

For solving the problems of the technologies described above, the technical solution of the utility model is: tensimeter, comprise the meter connector that core frame is installed, described meter connector is provided with the passage that is communicated with fluid line, exit at described passage is fixed with bourdon tube, rotating machine mandrel is installed on the described core frame, is provided with gearing between described bourdon tube and the machine mandrel, described bourdon tube is for can produce the torsion spring bourdon tube of elasticity of torsion deformation.

Described torsion spring bourdon tube is reversed by a rectangular tube and forms, described torsion spring bourdon tube one end sealing, other end opening.

The cavity aperture of described passage is greater than the aperture of feeder connection.

Described gearing comprises first bevel gear that is installed in described torsion spring bourdon tube top and is arranged on second bevel gear that meshes with described first bevel gear in the described machine mandrel.

Described gearing comprises the connecting rod that is movably connected in described torsion spring bourdon tube top, be installed in the sector gear on the described core frame and be arranged on movement gear in the described machine mandrel, described connecting rod is fixedlyed connected with the connecting portion of described sector gear, described movement gear and the engagement of sector teeth portion.

Owing to adopted technique scheme, fluid enters meter connector by the passage that is connected with fluid line, because passage is that linear and exit are fixed with the torsion spring bourdon tube, so the exit of meter connector is communicated with the torsion spring bourdon tube, fluid enters the torsion spring bourdon tube by meter connector like this, utilize the torsion spring bourdon tube to produce elastic deformation, the gearing of elastic deformation by installing between torsion spring bourdon tube and the machine mandrel, driving the machine mandrel of installing by gearing on core frame rotates, machine mandrel drives pointer and rotates with measured pressure value, this designs simplification the parts of gear train, reduced pad, make simple in structurely, reduced cost.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model embodiment one;

Accompanying drawing 2 is structural representations of the utility model embodiment two.

Embodiment

Embodiment one: as shown in Figure 1, a kind of tensimeter, comprise the meter connector 2 that core frame 8 is installed, be provided with passage 1 on meter connector 2, fluid is by pipeline admission passage 1, and passage 1 is a linear, the mouth of pipe of the outlet of passage 1 and torsion spring bourdon tube 4 is suitable, and the cavity aperture of passage 1 is greater than the aperture of feeder connection, and economical with materials has reduced cost like this.Be installed with the torsion spring bourdon tube 4 that can produce elasticity of torsion deformation in the exit of passage 1, this torsion spring bourdon tube 4 at first flattens into rectangular tube with a pipe when making, and behind the twisting formation, with end sealing, the other end is fixed on the endpiece of meter connector 2.Rotating machine mandrel 9 also is installed on the core frame 8, first bevel gear 5 is installed on the top of torsion spring bourdon tube 4, second bevel gear 6 that meshes with first bevel gear 5 is installed in machine mandrel 9, drive machine mandrel 9 by engaged transmission and rotate.Free end in machine mandrel 9 is equipped with pointer 3, between machine mandrel 9 and core frame 8 hairspring 7 is installed, and hairspring 7 can help machine mandrel's 9 returns, makes gauge hand 3 safety show force value.

During work, outside fluid enters meter connector 2 through the passage 1 that is communicated with fluid line, fluid enters in the torsion spring bourdon tube 4 from meter connector 2, make torsion spring bourdon tube 4 produce elastic deformation, then deformation is delivered on first bevel gear 5 of installing with torsion spring bourdon tube 4 tops, bevel gear 5 is rotated, the first vertebra gear 5 drives second bevel gear 6 that is meshed with it and rotates, the second vertebra gear 6 that rotates drives the machine mandrel 9 that is installed on the core frame 8 and rotates, the free end of machine mandrel 9 is equipped with pointer 3, and the rotation by pointer 3 comes measured pressure value like this.

Embodiment two: as shown in Figure 2, its structure and embodiment one are basic identical, difference is: the top at torsion spring bourdon tube 4 flexibly connects connecting rod 12, sector gear 10 is installed on described core frame 8, connecting rod 12 is fixedlyed connected with the connecting portion of sector gear 10, movement gear 11 is installed in machine mandrel 9, and movement gear 11 is meshed with the tooth portion of sector gear 10.

During work, produce elastic deformation by torsion spring bourdon tube 4, then deformation is delivered on the connecting rod 12 that flexibly connects with torsion spring bourdon tube 4 tops, driving sector gear 10 by connecting rod 12 rotates, thereby drive movement gear 11 rotations with its engagement, movement gear 11 drives machine mandrel's 9 rotations that are installed on the core frame 8 then, and the free end of machine mandrel 9 is equipped with pointer, and the rotation by pointer comes measured pressure value like this.

Certainly the gearing that is arranged between bourdon tube and the machine mandrel 9 also can adopt other known structure.

The utility model simplifies the structure, and has reduced parts, so also reduced pad, the life-span is long, has reduced cost.

Claims

1. tensimeter, comprise the meter connector (2) that core frame (8) are installed, described meter connector (2) is provided with the passage (1) that is communicated with fluid line, exit at described passage (1) is fixed with bourdon tube, rotating machine mandrel (9) is installed on the described core frame (8), described bourdon tube and machine mandrel are provided with gearing between (9), it is characterized in that: described bourdon tube is for can produce the torsion spring bourdon tube (4) of elasticity of torsion deformation.

2. tensimeter as claimed in claim 1 is characterized in that: described torsion spring bourdon tube (4) is reversed by a rectangular tube and forms, described torsion spring bourdon tube (4) one ends sealing, other end opening.

3. tensimeter as claimed in claim 2 is characterized in that: described passage (1) is a linear.

4. tensimeter as claimed in claim 3 is characterized in that: the cavity aperture of described passage (1) is greater than the aperture of feeder connection.

5. as described any tensimeter of claim 1 to 4, it is characterized in that: described gearing comprises first bevel gear (5) that is installed in described torsion spring bourdon tube (4) top and is arranged on described machine mandrel (9) goes up second bevel gear (6) that meshes with described first bevel gear (5).

6. as described any tensimeter of claim 1 to 4, it is characterized in that: described gearing comprises the connecting rod (12) that is movably connected in described torsion spring bourdon tube (4) top, be installed in the sector gear (10) on the described core frame (8) and be arranged on movement gear (11) in the described machine mandrel (9), described connecting rod (12) is fixedlyed connected with the connecting portion of described sector gear (10), and described movement gear (11) meshes with the tooth portion of sector gear (10).