CN202453097U

CN202453097U - Square isolated-measurement thermometer

Info

Publication number: CN202453097U
Application number: CN2011205229057U
Authority: CN
Inventors: 王宏; 孙嵘
Original assignee: HOWE PRECISION INDUSTRIAL Inc
Current assignee: HOWE PRECISION INDUSTRIAL Inc
Priority date: 2011-12-15
Filing date: 2011-12-15
Publication date: 2012-09-26
Anticipated expiration: 2021-12-15

Abstract

The utility model relates to a temperature measurement displaying instrument, in particular to a square isolated-measurement thermometer which performs measurement by utilizing the principle that a medium expands with heat and has high measurement accuracy. The square isolated-measurement thermometer comprises a casing, an outer casing sleeved on the casing and with a transparent panel, a movement arranged in the casing and a scale turntable installed on a central rotary shaft of the movement. The movement is connected with a capillary tube, the other end of the capillary tube is connected with a temperature bulb, and a C-shaped spring tube is arranged between the movement and the capillary tube. The square isolated-measurement thermometer adopts the C-shaped tube, is not affected by the outside and has high measurement accuracy. A copper seat is arranged in the casing, and all of the movement, the capillary tube and the C-shaped spring tube are fixed on the copper seat, so that the overall stability is improved, and the square isolated-measurement thermometer is shock-proof and stable in measurement accuracy.

Description

Square is at a distance from surveying thermometer

Technical field

The utility model relates to a kind of temperature survey display instrument, relates in particular to a kind of principle of medium expanded by heating of utilizing and measures the high square of temperature accuracy at a distance from surveying thermometer.

Background technology

Thermometer commonly used is exactly to utilize the principle of expanding with heat and contracting with cold of mercury or other temperature sensing liquids directly to show the temperature of testee.General thermometer commonly used like Fig. 1, shown in Figure 2, comprises housing 1 and the shell body 2 that has transparent panel 5, is provided with movement 4 in the housing 1; Scale rotating disk 3 is installed on the movement 4, and movement is connected with convolute elastic tube 7, and convolute elastic tube 7 other ends are connected with kapillary 6; Kapillary 6 other ends are connected with thermometer bulb 8, in the thermometer bulb 8 temperature sensing liquid are housed, and utilize the stressed expansion of temperature sensing liquid in thermometer bulb, kapillary and the scroll spring to produce pressure; Make movement produce deflection and drive the scale rotation, indicate the temperature of measured medium, but scroll spring receives ectocine big; Shock-sensitive, scroll spring is prone to loosening, measures out of true.China's utility model patent patent No. 03265884.2 has openly been explained a kind of pressure-type thermometer; Increased by a short capillary at scroll spring one end; Though increased the stability of scroll spring; Short capillary also is subject to ectocine, and scroll spring is affected by the external environment also bigger, and measuring accuracy is low.

Summary of the invention

The utility model problem to be solved provides a kind of high square of ectocine, temperature measurement accuracy that do not receive at a distance from surveying thermometer.

For realizing above-mentioned purpose, the technical scheme that the utility model is taked is:

A kind of square is at a distance from surveying thermometer; Comprise housing, be enclosed within the shell body that has transparent panel on the housing, be arranged on the movement in the housing and be installed in the scale rotating disk on the movement central rotating shaft; Said movement is connected with kapillary, and the kapillary other end is connected with thermometer bulb, is provided with C shape bourdon tube between said movement and the kapillary; The pipe tail of C shape bourdon tube is connected with movement, and the other end is communicated with kapillary.

The copper seat is installed in the said housing, and said movement is installed on the copper seat.

Be provided with through hole in the said copper seat, through hole one end is communicated with kapillary, and the other end is communicated with C type pipe.

The utility model adopts C shape pipe, does not receive ectocine, and measuring accuracy is high, in shell, is provided with the copper seat, and movement, kapillary and C shape bourdon tube all are fixed on the copper seat, have increased whole steadiness, and be shatter-proof, and measuring accuracy is stable.

Description of drawings

Fig. 1 prior art structural representation;

Fig. 2 prior art vertical view;

Fig. 3 the utility model structural representation;

Fig. 4 the utility model vertical view.

Embodiment

Like Fig. 3, shown in Figure 4; A kind of square is at a distance from surveying thermometer, comprises housing 11, is enclosed within the shell body 12 that has transparent panel 15 on the housing 11, is arranged on the movement 14 in the housing 11 and is installed in the scale rotating disk 13 on movement 14 central rotating shafts, and movement 14 is connected with kapillary 16; The kapillary 16 outer protective sleeves 25 that are provided with; Kapillary 16 other ends are connected with thermometer bulb 18 through last stopper 17, are provided with C shape bourdon tube 19 between movement 14 and the kapillary 16, and the pipe tail 20 of C shape bourdon tube 19 is connected with movement 14 through connecting rod 22; Connecting rod 22 is fixed through connecting rod rivet 21 with pipe tail 20, movement 14, and C shape bourdon tube 19 other ends are communicated with kapillary 16.

Copper seat 24 is installed in the housing 11, and movement 14 is installed on the copper seat 24 through movement screw 23, is provided with through hole in the copper seat 24, and through hole one end is communicated with kapillary 16, and the other end is communicated with C type pipe 19.

The utility model is adapted to temperature range at-40～20 ° of C, measures accurately, when the utility model uses, fills an amount of temperature sensing medium with in 18 having enough to eat and wear, and uses stopper 17 good seals, just can measure use.

Claims

1. a square is at a distance from surveying thermometer; Comprise housing, be enclosed within the shell body that has transparent panel on the housing, be arranged on the movement in the housing and be installed in the scale rotating disk on the movement central rotating shaft; Said movement is connected with kapillary; The kapillary other end is connected with thermometer bulb, it is characterized in that: be provided with C shape bourdon tube between said movement and the kapillary.

2. square according to claim 1 is at a distance from surveying thermometer, and it is characterized in that: the copper seat is installed in the said housing, and said movement is installed on the copper seat.

3. square according to claim 2 is characterized in that at a distance from surveying thermometer: be provided with through hole in the said copper seat, through hole one end is communicated with kapillary, and the other end is communicated with C type pipe.