CN201225939Y

CN201225939Y - Pressure gauge

Info

Publication number: CN201225939Y
Application number: CNU2008200226525U
Authority: CN
Inventors: 于景华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-16
Filing date: 2008-05-16
Publication date: 2009-04-22
Anticipated expiration: 2018-05-16

Abstract

The utility model discloses a pressure gauge, which comprises a pressure tapping that is provided with a core bracket, wherein, the pressure tapping is provided with a passage that is communicated with a fluid pipeline; a spring pipe is fixed at an outlet of the passage; the core bracket is provided with a core shaft that can rotate; the free end of the core shaft is provided with a pointer; the spring pipe is a torsion spring pipe that can have the torsion elastic deformation; the passage is straight; the top end of the torsion spring pipe is provided with a first conical gear; the core shaft is provided with a second conical gear that is engaged with the first conical gear, so that the components are reduced, thereby simplifying the structure, 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, the free end of described machine mandrel is equipped with pointer, described bourdon tube is for can produce the torsion spring bourdon tube of elasticity of torsion deformation, described passage is a linear, the top of described torsion spring bourdon tube is equipped with first bevel gear, and described machine mandrel is provided with second bevel gear with described first bevel gear engagement.

As a kind of improvement, described torsion spring bourdon tube by one one end seal, the rectangular tube of other end opening reverses and forms.

As further improvement, the cavity aperture of described passage is greater than the aperture of feeder connection and channel outlet.

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, first bevel gear that elastic deformation is installed by the top of torsion spring bourdon tube, biography is to going up second bevel gear that meshes with first bevel gear, driving the machine mandrel of installing on core frame then rotates, machine mandrel drives pointer and rotates with measured pressure value, this designs simplification the parts of gear train, reduce pad, made simple in structurely, reduced cost.

Description of drawings

Accompanying drawing is the structural representation of the utility model embodiment.

Embodiment

As shown in the figure, tensimeter, comprise the meter connector 2 that core frame 8 is 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, the free end of described machine mandrel 9 is equipped with pointer 3, described bourdon tube is for can produce the torsion spring bourdon tube 4 of elasticity of torsion deformation, described passage 1 is a linear, the top of described torsion spring bourdon tube 4 is equipped with first bevel gear 5, and described machine mandrel 9 is provided with second bevel gear 6 with 5 engagements of described first bevel gear.

During work, outside fluid enters meter connector 2 through the passage 1 that is communicated with fluid line, because bourdon tube is sealed by one one end, the rectangular tube of other end opening reverses and forms is torsion spring bourdon tube 4, and the bottom of torsion spring bourdon tube 4 is communicated with the outlet of the passage 1 of shape linearly, so fluid enters in the torsion spring bourdon tube 4 of fixedlying connected with described meter connector 2 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 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 3, and the rotation by pointer 3 comes measured pressure value like this.

Between the machine mandrel 9 of second bevel gear 6 and core frame 8, hairspring 7 is installed and helps machine mandrel's 9 returns, make gauge hand 3 safety show force value.Channel outlet and torsion spring bourdon tube 4 are suitable from the mouth of pipe, and the cavity aperture of passage 1 is greater than the aperture of feeder connection and channel outlet, and economical with materials has reduced cost like this.

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), the free end of described machine mandrel (9) is equipped with pointer (3), it is characterized in that: described bourdon tube is for can produce the torsion spring bourdon tube (4) of elasticity of torsion deformation, described passage (1) is a linear, the top of described torsion spring bourdon tube (4) is equipped with first bevel gear (5), and described machine mandrel (9) is provided with second bevel gear (6) with described first bevel gear (5) engagement.

2. tensimeter as claimed in claim 1 is characterized in that: described torsion spring bourdon tube (4) by one one end seal, the rectangular tube of other end opening reverses and forms.

3. tensimeter as claimed in claim 1 or 2 is characterized in that: the cavity aperture of described passage (1) is greater than the aperture of feeder connection and channel outlet.