Fully-sealed furnace temperature tester

Abstract

The utility model discloses a full-sealed furnace temperature tester, which relates to the technical field of furnace temperature testing and comprises a base, a mounting groove is arranged above the base, a plurality of limiting pieces are fixedly mounted in the mounting groove, a circuit board is detachably mounted among the plurality of limiting pieces, a mounting hole is arranged on the outer side of the base, and the circuit board is detachably mounted in the mounting hole. A mounting hole is formed in the base, a temperature measuring rod is detachably connected in the mounting hole, the temperature measuring rod is electrically connected with a circuit board, a shell is detachably mounted above the base, and an air injection valve and an air exhaust valve are mounted at the top of the shell respectively, so that the circuit board is buffered, the circuit board is prevented from being deformed and broken, and the service life of the circuit board is prolonged; internal heat convection and heat conduction can be slowed down, the heat insulation performance of the base and the shell is improved, the circuit board is prevented from being damaged, and the service life is further prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of furnace temperature testing, and in particular relates to a fully sealed furnace temperature tester. Background Art

[0002] A furnace temperature tester is a device used to measure the surface temperature curve of a workpiece after it enters an industrial furnace. It is widely used in fields such as SMT, semiconductors, military manufacturing, and automotive electronics, where the furnace temperature curve affects the quality of subsequent product processing. Based on the different information transmission methods, it can be divided into two types: wired transmission furnace temperature testers and wireless transmission furnace temperature testers. Among them, wireless transmission furnace temperature testers are more widely used due to their easy installation advantages.

[0003] Since the furnace temperature tester needs to be in a high temperature environment for a long time, the high temperature can easily cause the circuit board to expand. At the same time, the existing circuit board is fixed with bolts, which can easily cause the circuit board to break and have a short service life.

[0004] Therefore, we propose a fully sealed furnace temperature tester. Utility Model Content

[0005] The present invention provides a fully sealed furnace temperature tester to solve the technical problems raised by the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a fully sealed furnace temperature tester, including a base, a mounting groove is provided above the base, a limit piece is fixedly installed in the mounting groove, there are multiple limit pieces, a circuit board is detachably installed between the multiple limit pieces, a mounting hole is provided on the outside of the base, a temperature measuring rod is detachably connected to the mounting hole, the temperature measuring rod is electrically connected to the circuit board, a shell is detachably installed above the base, and an air injection valve and an exhaust valve are respectively installed on the top of the shell.

[0007] Preferably, there are a plurality of mounting holes, and the plurality of mounting holes are arranged equidistantly. A sealing plug and a temperature measuring rod are provided in the mounting hole, and the sealing plug and the temperature measuring rod are transitionally matched with the mounting hole.

[0008] Preferably, a slider is fixedly installed on the side of the base, and two sliders are provided. The two sliders are symmetrically arranged, and a sliding groove is opened on the inner side of the shell at a position corresponding to the slider, and the slider is slidably connected to the shell.

[0009] Preferably, the slider is T-shaped, the slide groove and the slider are T-shaped respectively, a threaded through hole is opened on the outside of the shell, a threaded blind hole is opened at the corresponding position of the slider and the threaded through hole, a bolt 1 is provided in the threaded through hole, and the bolt 1 is engaged with the threaded blind hole.

[0010] Preferably, the limiting member includes a column, the column is fixedly installed in the installation groove, there are multiple columns, the multiple columns are arranged equidistantly, a spring is provided at the bottom of the column, the circuit board is arranged in the middle of the column, a spring is provided above the column, and a removable mounting bolt is provided above the column.

[0011] Preferably, a threaded hole is provided on the top of the column, and the second bolt engages with the threaded hole.

[0012] Preferably, an air inlet and an air outlet are respectively provided on the top of the shell, the air injection valve is fixedly installed in the air inlet, and the air exhaust valve is fixedly installed at the air outlet.

[0013] Preferably, the exhaust valve includes a sleeve, which is fixedly installed on the exhaust port, the sleeve opening is downward, an exhaust hole is opened on the outer side of the top of the sleeve, a spring three is fixedly installed on the inner wall of the sleeve, an air valve plug is fixedly installed on the bottom of the spring three, and the air valve plug is slidably installed in the sleeve.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. When installing the fully sealed furnace temperature tester of this utility model, first insert spring 1 into the column, insert the holes reserved at the four corners of the circuit board into the column, and insert spring 2 into the column. After the circuit board is installed, insert bolt 2 into the threaded hole and tighten bolt 2. Spring 1 and spring 2 are respectively provided on both sides of the circuit board to cushion the circuit board, avoid deformation and breakage of the circuit board, and increase the service life of the circuit board.

[0016] 2. The fully sealed furnace temperature tester of the present invention, after the circuit board is installed, the slide groove provided on the inner wall of the shell is inserted along the slider, and after the insertion is completed, the bolt 1 is tightened to fix the shell and the base, so that the sealing inside the base is higher, and the air pump is inserted into the air injection valve, and the air pump injects argon gas into the base through the air injection valve, so that the air pressure in the base increases, and the high air pressure causes the air valve plug to slide along the inner wall of the sleeve. When the air valve plug moves to the exhaust hole position, the air in the base is discharged, so that the base is in a hollow state and is filled with argon gas. The viscosity of argon gas is higher than that of air, but its thermal conductivity and specific heat capacity are lower than those of air. Filling the base can slow down the internal heat convection and heat conduction, improve the thermal insulation performance of the base and the shell, avoid damage to the circuit board, and further increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the fully sealed furnace temperature tester of the utility model;

[0018] Figure 2 This is the expanded structure diagram of the fully sealed furnace temperature tester of the utility model;

[0019] Figure 3 It is the structure diagram of the line board in the full-sealed furnace temperature testing instrument of the utility model;

[0020] Figure 4 It is the structure diagram of the exhaust valve in the full-sealed furnace temperature testing instrument of the utility model;

[0021] Reference signs in the drawing: 1, base; 2, bolt one; 3, shell; 4, gas injection valve; 5, exhaust valve; 6, temperature measuring rod; 7, sealing plug; 8, line board; 9, limiting piece; 10, sliding block; 11, sliding groove; 12, threaded through hole; 13, bolt two; 14, spring one; 15, stand; 16, spring two; 17, threaded hole; 18, sleeve; 19, exhaust hole; 20, spring three; 21, gas valve plug. DETAILED DESCRIPTION

[0022] Please refer to Figures 1-4 The utility model provides a technical scheme: full-sealed furnace temperature testing instrument, including base 1, base 1 top is seted up with installation groove, installation groove is fixedly installed limiting piece 9, limiting piece 9 is equipped with a plurality of, a plurality of limiting piece 9 detachably installs line board 8 between, the outside of base 1 is seted up with mounting hole, the mounting hole is detachably connected with temperature measuring rod 6, temperature measuring rod 6 electrically connected line board 8, the top of base 1 is detachably installed with shell 3, and shell 3 top is installed with gas injection valve 4 and exhaust valve 5 respectively.

[0023] Further, the mounting hole is provided with a plurality of, the plurality of mounting holes are equidistantly arranged, the mounting hole is provided with a sealing plug 7 and a temperature measuring rod 6, and the sealing plug 7 and the temperature measuring rod 6 are transitionally matched with the mounting hole.

[0024] Further, the base 1 side is fixedly installed with a sliding block 10, the sliding block 10 is provided with two, the two sliding blocks 10 are symmetrically arranged, the inside of the shell 3 is provided with a sliding groove 11 at the corresponding position of the sliding block 10, and the sliding block 10 is slidably connected with the shell 3.

[0025] Further, the sliding block 10 is T-shaped, the sliding groove 11 is T-shaped corresponding to the sliding block 10, the outside of the shell 3 is provided with a threaded through hole 12, the sliding block 10 is provided with a threaded blind hole at the corresponding position of the threaded through hole 12, the threaded through hole 12 is provided with a bolt one 2, and the bolt one 2 is engaged with the threaded blind hole.

[0026] Further, the limiting piece 9 includes a stand 15, the stand 15 is fixedly installed in the installation groove, the stand 15 is provided with a plurality of, the plurality of stands 15 are equidistantly arranged, the stand 15 is provided with a spring one 14 at the bottom, the line board 8 is arranged at the middle position of the stand 15, the stand 15 is provided with a spring two 16 at the top, and the stand 15 is detachably installed with a bolt two 13 at the top.

[0027] Further, the stand 15 is provided with a threaded hole 17 at the top, and the bolt two 13 is engaged with the threaded hole 17.

[0028] Furthermore, an air inlet and an air outlet are respectively provided on the top of the shell 3 , the air injection valve 4 is fixedly installed in the air inlet, and the air exhaust valve 5 is fixedly installed at the air outlet.

[0029] Furthermore, the exhaust valve 5 includes a sleeve 18, which is fixedly installed at the exhaust port. The sleeve 18 opens downward, and an exhaust hole 19 is opened on the outer side of the top of the sleeve 18. A spring three 20 is fixedly installed on the inner wall of the sleeve 18, and an air valve plug 21 is fixedly installed at the bottom of the spring three 20. The air valve plug 21 is slidably installed in the sleeve 18.

[0030] Working principle:

[0031] During installation, first insert spring 14 into column 15, insert the holes reserved at the four corners of circuit board 8 into column 15, and insert spring 2 16 into column 15. After circuit board 8 is installed, insert bolt 2 13 into threaded hole 17 and tighten bolt 2 13. Spring 14 and spring 2 16 are respectively provided on both sides of circuit board 8 to cushion circuit board 8, avoid deformation and breakage of circuit board 8, and improve service life of circuit board 8. After circuit board 8 is installed, insert the slide groove 11 provided on the inner wall of housing 3 along slider 10. After insertion, tighten bolt 1 2 to fix housing 3 to base 1. In order to obtain a higher sealing performance inside the base 1, an air pump is inserted into the air injection valve 4. The air pump injects argon into the base 1 through the air injection valve 4, so that the air pressure inside the base 1 increases. The high air pressure causes the air valve plug 21 to slide along the inner wall of the sleeve 18. When the air valve plug 21 moves to the position of the exhaust hole 19, the air in the base 1 is discharged, so that the base 1 is in a hollow state and is filled with argon. The viscosity of argon is higher than that of air, but its thermal conductivity and specific heat capacity are lower than those of air. Filling the base 1 can slow down the internal heat convection and heat conduction, improve the thermal insulation performance of the base 1 and the shell 3, avoid damage to the circuit board 8, and further improve the service life.

Claims

1. A fully sealed furnace temperature tester, comprising a base (1), characterized in that: A mounting groove is provided above the base (1), a limiting member (9) is fixedly installed in the mounting groove, a plurality of limiting members (9) are provided, and a circuit board (8) is detachably installed between the plurality of limiting members (9), a mounting hole is provided on the outside of the base (1), a temperature measuring rod (6) is detachably connected to the mounting hole, and the temperature measuring rod (6) is electrically connected to the circuit board (8), a shell (3) is detachably installed above the base (1), and an air injection valve (4) and an exhaust valve (5) are respectively installed on the top of the shell (3).

2. The fully sealed furnace temperature tester according to claim 1, characterized in that: There are a plurality of mounting holes, which are arranged at equal intervals. A sealing plug (7) and a temperature measuring rod (6) are provided in the mounting hole, and the sealing plug (7) and the temperature measuring rod (6) are transitionally matched with the mounting hole.

3. The fully sealed furnace temperature tester according to claim 1, characterized in that: A sliding block (10) is fixedly mounted on the side of the base (1), and two sliding blocks (10) are provided. The two sliding blocks (10) are symmetrically arranged, and a sliding groove (11) is provided on the inner side of the shell (3) at a position corresponding to the sliding block (10), and the sliding block (10) is slidably connected to the shell (3).

4. The fully sealed furnace temperature tester according to claim 3, characterized in that: The slider (10) is T-shaped, the slide groove (11) and the slider (10) are T-shaped, the outer side of the housing (3) is provided with a threaded through hole (12), the slider (10) and the threaded through hole (12) are provided with a threaded blind hole at a position corresponding to the threaded through hole (12), a bolt (2) is provided in the threaded through hole (12), and the bolt (2) is engaged with the threaded blind hole.

5. The fully sealed furnace temperature tester according to claim 1, characterized in that: The limiting member (9) includes a column (15), the column (15) is fixedly installed in the installation groove, a plurality of the columns (15) are provided, and the plurality of the columns (15) are arranged at equal intervals, a spring 1 (14) is sleeved on the bottom of the column (15), the circuit board (8) is arranged in the middle of the column (15), a spring 2 (16) is sleeved on the top of the column (15), and a detachable mounting bolt 2 (13) is provided on the top of the column (15).

6. The fully sealed oven temperature tester according to claim 5, characterized in that: A threaded hole (17) is provided on the top of the column (15), and the second bolt (13) is engaged with the threaded hole (17).

7. The fully sealed oven temperature tester according to claim 1, characterized in that: An air inlet and an air outlet are respectively provided on the top of the shell (3); the air injection valve (4) is fixedly installed in the air inlet, and the air outlet valve (5) is fixedly installed at the air outlet.

8. The fully sealed oven temperature tester according to claim 1, characterized in that: The exhaust valve (5) includes a sleeve (18), the sleeve (18) is fixedly mounted on the exhaust port, the sleeve (18) opens downward, an exhaust hole (19) is provided on the outer side of the top of the sleeve (18), a spring three (20) is fixedly mounted on the inner wall of the sleeve (18), an air valve plug (21) is fixedly mounted on the bottom of the spring three (20), and the air valve plug (21) is slidably mounted in the sleeve (18).

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