CN203745121U

CN203745121U - Mechanical digital display pressure gage

Info

Publication number: CN203745121U
Application number: CN201420011478.XU
Authority: CN
Inventors: 施启高; 施小峰
Original assignee: DONGTAI HUFENG MACHINERY EQUIPMENT Co Ltd
Current assignee: DONGTAI HUFENG MACHINERY EQUIPMENT Co Ltd
Priority date: 2013-12-31
Filing date: 2014-01-09
Publication date: 2014-07-30
Anticipated expiration: 2024-01-09
Also published as: CN103712727A

Abstract

The utility model discloses a mechanical digital display pressure gage comprising a gage shell, a gage cover, a bourdon tube and a rotatable mandrel which are arranged in the gage shell, and a pressure deformation transformation mechanism connected between the bourdon tube and the mandrel. A magnetic disc is fixedly arranged on the top portion of the mandrel. An angle sensor is arranged above the magnetic disc in an adjacent manner. The angle sensor is electrically connected with a circuit board. The circuit board is electrically connected with a digital display screen. The circuit board is powered by a battery. The pressure deformation transformation mechanism is a gear transmission mechanism composed of a gear and a sector gear. The gear is fixedly arranged on the mandrel. The sector gear and the bourdon tube are in lever connection. The mechanical digital display pressure gage has advantages of wide application range and accurate reading.

Description

Mechanical type digital display tensimeter

Technical field

The utility model relates to a kind of manometer, relates in particular to the improvement to such mechanical pressure instrument structure.

Background technology

Wider in the application of the industry pressure vessel such as oil, chemical industry, medicine, food, be the safety in utilization that ensures pressure vessel, being used for of installing on pressure vessel and pipeline thereof measured and indicates the tensimeter of its internal pressure size essential.If if there is no tensimeter in production run on pressure vessel and pipeline thereof, or tensimeter is malfunctioning, pressure in container just cannot show, thereby directly jeopardize production safety, therefore only on pressure vessel, install sensitive, tensimeter accurately, operating personnel just can be whereby on-stream pressure container correctly, guarantee production safety.On current stress container and pipeline thereof, tensimeter used is greatly to being divided into two kinds, and one is mechanical pressure gauge, another kind of electronic pressure gage.Mechanical pressure gauge is than its sound construction of electronic pressure gage, durable in use, the advantage such as environment for use is wide, but mechanical pressure gauge is by pointer indicating value, Ze Qi indicating accuracy is low, read untrue, therefore that mechanical pressure gauge is applicable to operating mode more is more severe, and to the less demanding place of pressure indicating accuracy; And electronic pressure gage is directly shown by charactron or liquid crystal display than its indicating value of mechanical pressure gauge, Ze Qi indicating accuracy high scale is accurate, but electronic pressure gage has requirement to used environment temperature, its best environment for use temperature is only confined between 0-50 DEG C, therefore it is high that it only can be used in some indicating accuracies' requirements, and the relatively low place of environment temperature.Industrially tensimeter type selecting trouble is needed badly to one can not select environment for use for reducing, and reading tensimeter accurately.

Utility model content

For prior art deficiency, technical problem to be solved in the utility model is to provide that a kind of usable range is wide, the mechanical type digital display tensimeter of accuracy of reading.

In order to solve the problems of the technologies described above mechanical type digital display tensimeter of the present utility model, comprise watchcase, table cover, be arranged at Bourdon tube and rotatable mandrel in watchcase, be connected in the pressure deformation throw-over gear between Bourdon tube and mandrel, described mandrel top is fixedly installed disk, this adjacent angle inductor that arranging in disk top, this angle inductor is electrically connected with circuit board, and this circuit board is electrically connected with digital display screen, and this circuit board is battery-powered.

Adopt after said structure, due to the setting of disk and angle inductor, disk can be with the circumferential rotation of being made certain angle by the mandrel of pressure deformation rotation that throw-over gear drives, angle inductor can detect the variation of disk magnetic line of force angle, and the variation of disk magnetic line of force angle can be changed into analog voltage, converting pressure value to through board circuit is shown on digital display screen, use the tensimeter of this structure to realize and can utilize mechanical movement and coupled magnetic force and sensing element measuring pressure, and automatically show force value with digital display screen, this just combines the advantage of mechanical pressure gauge and electronic pressure gage, there is usable range wide, the advantage of accuracy of reading.

In a kind of preferred implementation of the present utility model, described pressure deformation throw-over gear is the gear drive being made up of gear and sector gear, and this gear is fixedly installed on mandrel, and this sector gear is connected with Bourdon tube lever.The setting of said structure has rational in infrastructure, and transmission force property is excellent, the advantage sensitive to stress reaction.

In another preferred implementation of the present utility model, on described mandrel, be fixedly connected with pointer.Increase manometric reading mode by arranging of pointer, thereby ensured still can smoothly to meter reading, there is more reasonable structure, the advantage that security performance is more excellent in the place that is not easy to the digital display screen to carry out reading.

Brief description of the drawings

Below in conjunction with the drawings and specific embodiments, mechanical type digital display tensimeter of the present utility model is described further.

Fig. 1 is the sectional view of the main apparent direction of a kind of embodiment of mechanical type digital display tensimeter of the present utility model;

Fig. 2 is the sectional view of the right apparent direction of structure shown in Fig. 1;

Fig. 3 is the sectional view of the left apparent direction of structure shown in Fig. 1.

In figure, 1-digital display screen, 2-circuit board, 3-angle inductor, 4-disk, 5-pointer, 6-battery, 7-Bourdon tube, 8-watchcase, 9-sector gear, 10-joint, 11-mandrel, 12-table cover, 13-gear.

Embodiment

At Fig. 1, in mechanical type digital display tensimeter shown in Fig. 2 and Fig. 3, in watchcase 8, be provided with rotating mandrel 11 and Bourdon tube 7, on this mandrel 11, be fixedly connected with gear 13, this gear 13 be rotatably arranged at sector gear 9 in watchcase 8 and be meshed and form pressure deformation throw-over gear, sector gear 9 in this pressure deformation throw-over gear is connected with Bourdon tube 7 levers, Bourdon tube 7 is connected and is tightly connected with joint 10, be fixedly installed disk 4 on mandrel 11 tops, the adjacent angle inductor 3 that arranging above this disk 4, between watchcase 8 and table cover 12, circuit board 2 is being set, in table cover 12, be provided with digital display screen 1, this digital display screen 1 is electrically connected with circuit board 2, circuit board 2 is electrically connected with angle inductor 3, this circuit board 2 is powered by battery 6, battery 6 sealings are arranged at watchcase 8 bottoms, on tensimeter mandrel 11, also fixedly mounting pointer 5.After implementing by above structure, pressed gas in pressure vessel or liquid are entered in Bourdon tube 7 by pressure tapping 10, will order about Bourdon tube 7 and produce a certain amount of elastic telescopic, this elastic telescopic is after pressure deformation throw-over gear effect, driving mandrel 11 to produce certain angle rotates, thereby band movable magnetic disc 4 turns over respective angles, disk 4 rotates magnetic field angle and deflects, angle inductor 3 can detect the variation of disk magnetic line of force angle, and the variation of disk magnetic line of force angle can be changed into analog voltage, become pressure value to be shown on digital display screen through circuit board 2 circuit conversion, this has just realized the upgrading to mechanical pressure gauge, make mechanical pressure gauge can carry out digital display reading, tensimeter after upgrading combines the advantage of mechanical pressure gauge and electronic pressure gage, reach usable range wide, the implementation result of accuracy of reading.And increased manometric reading mode by arranging of pointer, thereby ensured be not easy to that digital display screen is carried out to the place of reading still can be smoothly to meter reading, there is more reasonable structure, the application performance that security performance is more excellent.

Above-mentioned some preferred implementations of only having enumerated in the utility model mechanical type digital display tensimeter, but be not limited to this.In the utility model ultimate principle situation, also can do some conversion and improvement.For example, in the present embodiment, on mandrel, fixedly mounted the pointer for reading, in the time that reality is manufactured, also can select need not, and so on.As long as the close change of any structural similarity, function of doing, be all considered as falling into protection domain of the present utility model on the utility model basis.

Claims

1. a mechanical type digital display tensimeter, comprise watchcase (8), table cover (12), be arranged at Bourdon tube (7) and rotatable mandrel (11) in watchcase (8), be connected in the pressure deformation throw-over gear between Bourdon tube (7) and mandrel (11), it is characterized in that: described mandrel (11) top is fixedly installed disk (4), the adjacent angle inductor (3) that arranging in this disk (4) top, this angle inductor (3) is electrically connected with circuit board (2), this circuit board (2) is electrically connected with digital display screen (1), and this circuit board (2) is powered by battery (6).

2. mechanical type digital display tensimeter according to claim 1, it is characterized in that: the gear drive of described pressure deformation throw-over gear for being formed by gear (13) and sector gear (9), it is upper that this gear (13) is fixedly installed on mandrel (11), and this sector gear (9) is connected with Bourdon tube (7) lever.

3. mechanical type digital display tensimeter according to claim 1, is characterized in that: on described mandrel (11), be fixedly connected with pointer (5).