CN210426825U

CN210426825U - Thermometer calibrating device

Info

Publication number: CN210426825U
Application number: CN201921312797.3U
Authority: CN
Inventors: 殷万国
Original assignee: Sichuan Zhongheng Measurement And Testing Technology Co Ltd
Current assignee: Sichuan Zhongheng Measurement And Testing Technology Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-04-28
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a thermometer calibrating device belongs to thermometer detection technical field, and it includes box, air heater, mounting bracket and standard component, and the top of box articulates there is the closed door, and the air heater passes through pipeline and the inside intercommunication of box, and the mounting bracket setting is inside the box, and the standard component setting still is provided with the mounting on the mounting bracket, and the lateral wall of box is provided with the observation window, and the intercommunication is provided with check valve and advection pipe on the lateral wall of box, and advection pipe one end is provided with the end cap. During detection, the detected part and the standard part are both in a closed environment, so that the generation of errors is reduced, and the accuracy of the test is improved.

Description

Thermometer calibrating device

Technical Field

The utility model relates to a thermometer detects technical field, especially relates to a thermometer calibrating device.

Background

The thermometer is very common in people's daily life, can be comparatively accurate through utilizing the thermometer detect out indoor outer temperature, and the people of being convenient for know the changes in temperature of weather, increase the clothing at any time, but need carry out certain detection achievement to the thermometer before the thermometer comes into use, comes the great thermometer of effectual prevention error and puts into market, influences the normal use of thermometer.

When the existing thermometer detection device is used, the sealing fixation between the detection device and the thermometer cannot be well realized during detection, a large number of detection errors are easily generated, meanwhile, a certain contrast measure is not provided for detection, and certain influence is brought to error control of device detection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thermometer calibrating device has and makes the measured piece be in the closed environment with the standard component and detect, reduces the advantage that detects the error.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a thermometer calibrating device, includes box, air heater, mounting bracket and standard component, the opening has been seted up at the top of box, and articulated have and be used for sealing open-ended closed door, and the air-out end of air heater passes through pipeline and the inside intercommunication of box, and the mounting bracket setting is inside the box, the standard component sets up on the mounting bracket, still be provided with the mounting that is used for fixed thermometer by the being surveyed on the mounting bracket, the lateral wall of box is provided with and is used for supplying operating personnel to observe the observation window of making by transparent material, has the check valve that is used for arranging the gassing body outside the box through the pipe connection on the lateral wall of box, be provided with the advection pipe with the inside intercommunication of box on the lateral wall of box, the one.

When the technical scheme is implemented, a tested piece, namely a thermometer to be tested, is fixed on the mounting frame through the fixing piece during detection, then the sealing door is rotated to seal the opening, the hot air blower is started to heat the interior of the box body, the air pressure in the box body is increased along with the temperature rise in the box body and the feeding of outside air, and part of air is discharged from the one-way valve, so that the air pressure in the box body is the same as the outside air pressure, the phenomenon that the standard piece or the tested piece is damaged due to the overlarge pressure in the box body is reduced, when the box body is heated to a certain temperature, the hot air blower is stopped to heat, an operator can observe the tested piece and the standard piece, namely the standard thermometer through the observation window to judge whether the tested piece is qualified, the tested piece and the standard piece are both in a closed; after detecting the completion, operating personnel waits for the inside cooling of box, and operating personnel opens the end cap this moment, and at the inside pressure of cooling in-process box and reduce, external gas is through the internal external pressure balance of box when the concora crush tube gets into inside the box, and the operating personnel of being convenient for opens the closed door and takes out and surveyed the piece, and the device simple structure easily operates.

Further, an annular air inlet pipe is arranged at the bottom in the box body, air inlet holes are uniformly formed in the air inlet pipe, the air heater is connected with the air inlet pipe through a pipeline, and the mounting frame is arranged on the inner ring side of the annular air inlet pipe.

Implement above-mentioned technical scheme, the setting up of annular intake pipe makes the temperature around the mounting bracket can evenly rise, reduces the phenomenon that the temperature differs around standard component or the measured piece and takes place, improves the measuring accuracy.

Further, the fixing piece is arranged as an elastic clamp.

Implement above-mentioned technical scheme, the setting up of elasticity clamping makes things convenient for operating personnel to fix the piece that is surveyed, and makes things convenient for operating personnel to adjust the position height of the piece that is surveyed.

Further, the mounting bracket includes the pedestal and sets up the support on the pedestal, and the standard component sets up on the support, the mounting bracket can pass through the opening setting.

Implement above-mentioned technical scheme, the mounting bracket can take out and make things convenient for operating personnel to install the measured piece, makes things convenient for operating personnel to adjust the position of measured piece simultaneously.

Furthermore, an alignment rod perpendicular to the standard component is further arranged on the support, and one end of the alignment rod is sleeved on the support in a sliding mode and is fixed on the support through a clamp.

By implementing the technical scheme, the alignment rod is convenient for an operator to align the initial scales of the standard part and the measured part, so that the phenomena that the distance between the measured part and the standard part from the bottom of the box body is different and the ambient temperature is different are reduced, and the error is reduced; the clamp fixes the alignment rod, so that an operator can conveniently adjust the position of the standard rod.

Further, a rubber strip used for plugging a gap between the closed door and the box body is further arranged on the side wall of the closed door.

Implement above-mentioned technical scheme, the leakproofness of box has been improved in setting up of rubber strip, reduces the outside air refluence and gets into the influence that causes the testing result in the box.

Compared with the prior art, the utility model has the advantages of:

firstly, in the observation process, the measured part and the standard part are both in a closed environment, so that the generation of errors is reduced;

the arrangement of the annular air inlet pipe enables the temperature around the mounting frame to be uniformly increased, and the phenomenon that the temperature around the standard part or the measured part is different is reduced;

the mounting frame can be taken out, so that an operator can conveniently mount the tested piece, and the position of the tested piece can be conveniently adjusted by the operator;

fourthly, the setting of alignment rod makes things convenient for operating personnel to align the initial scale of standard component and measured piece, reduces to be measured and the phenomenon emergence that the distance is different and ambient temperature is different from the bottom half with the standard component, reduces the production of error.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an intake pipe according to an embodiment of the present invention.

In the figure: 1. a box body; 11. an opening; 12. a closing door; 121. a rubber strip; 13. an observation window; 14. a one-way valve; 15. flattening the pipe; 16. an end cap; 2. a hot air blower; 3. a mounting frame; 31. a base body; 32. a support; 4. a standard component; 5. a fixing member; 6. an air inlet pipe; 61. an air inlet; 7. an alignment rod; 71. and (4) a clamp.

Detailed Description

The present invention will be further explained below.

Example (b):

as shown in FIG. 1, a thermometer calibration device comprises a box body 1, a hot air blower 2, a mounting rack 3 and a standard part 4. Opening 11 has been seted up at the top of box 1, and articulated have a closed door 12 that is used for closing opening 11, still is provided with the rubber strip 121 that is used for the shutoff to close clearance between door 12 and the box 1 on the lateral wall of closed door 12 for the inside sealing that can be better of box 1 prevents that outside cold air from getting into the inside influence that causes the testing result of box 1 through the gap when examining.

The side wall of the box body 1 is provided with an observation window 13 for an operator to observe the gas made of transparent material, the side wall of the box body 1 is connected with a one-way valve 14 for discharging gas to the outside of the box body 1 through a pipeline, the side wall of the box body 1 is provided with a pressure equalizing pipe 15 communicated with the inside of the box body 1, and one end, far away from the box body 1, of the pressure equalizing pipe 15 is provided with an end cap 16.

The bottom is provided with annular intake pipe 6 in the box 1, and the even inlet port 61 of having seted up on intake pipe 6, and the air-out end of air heater 2 passes through the pipeline and is connected with intake pipe 6. The mounting bracket 3 is arranged on the inner ring side of the annular air inlet pipe 6, so that the temperature around the mounting bracket 3 can be uniformly increased, the environment around the measured part and the standard part 4 is the same, the phenomenon that the distance between the measured part and the standard part 4 is different from that of a heat source and the ambient temperature is different is reduced, and the generation of measurement errors is reduced.

The mounting frame 3 can be arranged through the opening 11 so that an operator can take out the mounting frame 3 to mount the tested piece. Mounting bracket 3 includes pedestal 31 and the support 32 of setting on pedestal 31, and standard component 4 all fixes on support 32 through mounting 5 with being surveyed the piece, and mounting 5 sets up to the elasticity clamping in this embodiment, the operating personnel's of being convenient for installation, but simultaneously adjustable standard component 4 and the position of being surveyed the piece to reduce measuring result's error, can change after standard component 4 damages simultaneously, reduce the device's cost of maintenance. Still set up the horizontally and aim at pole 7 on the support 32, aim at the one end slip cover of pole 7 and establish on support 32, and fix on support 32 through clip 71 to operating personnel adjusts the position of aiming at pole 7, makes the initial scale of standard component 4 and measured piece align, reduces measured piece and standard component 4 and from the phenomenon emergence that the bottom distance of box 1 is different and ambient temperature is different, reduces the production of error.

The use process comprises the following steps:

the closing door 12 is opened, the mounting frame 3 is taken out of the box body 1, the position of the aligning rod 7 is adjusted, the tested piece, namely the thermometer to be tested, is fixed on the mounting frame 3 through an elastic clamp, and the standard piece 4, namely the standard thermometer, is aligned with the initial scale of the tested piece through the aligning rod 7. After the installation, the mounting bracket 3 is placed back into the box body 1, and the mounting bracket 3 is positioned at the central part of the inner ring side of the annular air inlet pipe 6. The operator then closes the closure door 12 and checks whether the end cap 16 seals against the surge tank 15. After the inspection is finished, the air heater 2 is started to heat the interior of the box body 1, along with the temperature rise of the interior of the box body 1 and the feeding of the outside air, the air pressure in the box body 1 is increased, part of the air is discharged from the one-way valve 14, so that the air pressure in the box body 1 is the same as the outside air pressure, the phenomenon that the standard part 4 or the tested part is damaged due to the overlarge pressure in the box body 1 is reduced, the air heater 2 is stopped to be used for heating after the air heater is heated to a certain temperature, an operator can observe the tested part and the standard part 4, namely the standard thermometer, through the observation window 13 to judge whether the tested part is qualified, the tested part and the standard part 4 are both in a closed environment in the observation process, and; after the detection is finished, an operator waits for the internal cooling of the box body 1, the end cap 16 is opened by the operator at the moment, the internal pressure of the box body 1 is reduced in the cooling process, the internal pressure and the external pressure of the box body 1 are balanced when the external gas enters the box body 1 through the pressure equalizing pipe 15, the operator can open the sealing door 12 to take out the tested piece conveniently, and the device is simple in structure and easy to operate.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; while the invention has been described in terms of specific embodiments and applications, it will be apparent to those skilled in the art that numerous variations and modifications can be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The thermometer calibration device is characterized by comprising a box body (1), an air heater (2), an installation frame (3) and a standard part (4), wherein an opening (11) is formed in the top of the box body (1), a sealing door (12) used for sealing the opening (11) is hinged to the top of the box body (1), the air outlet end of the air heater (2) is communicated with the inside of the box body (1) through a pipeline, the installation frame (3) is arranged inside the box body (1), the standard part (4) is arranged on the installation frame (3), a fixing part (5) used for fixing a thermometer to be tested is further arranged on the installation frame (3), an observation window (13) made of a transparent material is arranged on the side wall of the box body (1) for an operator to observe, a one-way valve (14) used for discharging gas outside the box body (1) is connected to the side wall of the box body (1) through a pipeline, a flat pressing pipe (15) communicated with the inside of the box body (1, an end cap (16) is arranged at one end of the pressure equalizing pipe (15) far away from the box body (1).

2. The thermometer calibration device as claimed in claim 1, wherein an annular air inlet pipe (6) is arranged at the bottom in the box body (1), air inlet holes (61) are uniformly formed in the air inlet pipe (6), the hot air blower (2) is connected with the air inlet pipe (6) through a pipeline, and the mounting frame (3) is arranged on the inner ring side of the annular air inlet pipe (6).

3. A thermometer calibration device according to claim 1, characterized in that the fixing element (5) is provided as a resilient clip.

4. A thermometer calibration device as claimed in claim 3, characterized in that the mounting bracket (3) comprises a holder body (31) and a holder (32) arranged on the holder body (31), the standard (4) being arranged on the holder (32), the mounting bracket (3) being arrangeable through the opening (11).

5. A thermometer calibrating device according to claim 4, characterized in that the holder (32) is further provided with an alignment rod (7) perpendicular to the standard (4), one end of the alignment rod (7) is slidably fitted over the holder (32) and is fixed to the holder (32) by means of a clamp (71).

6. A thermometer calibrating device according to claim 1, characterized in that the side walls of the closing door (12) are provided with rubber strips (121) for closing the gap between the closing door (12) and the housing (1).