CN211709245U

CN211709245U - Sample placing table of cone calorimeter

Info

Publication number: CN211709245U
Application number: CN202020116622.1U
Authority: CN
Inventors: 孙成绘
Original assignee: Suzhou Yangyi Walch Detection Technology Co ltd
Current assignee: Suzhou Yangyi Walch Detection Technology Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-10-20
Anticipated expiration: 2030-01-18

Abstract

The utility model discloses a platform is placed to toper calorimeter's sample has solved the sample and has placed the unable flexible problem of platform, and its technical scheme main points are: place platform and instrument body including the sample, the instrument body is equipped with the cavity that holds the sample and place the platform, the sample is placed the platform and is included square case, bracing piece and base, the bracing piece includes interior pole and outer tube, the outer tube is equipped with and is used for interior pole male cavity one, cavity one is equipped with and is used for making the drive arrangement that interior pole goes up and down, drive arrangement includes gear and motor one, motor one with the inner wall fixed connection of cavity one, the gear cover is established on the output shaft of motor one, one side of interior pole be equipped with gear engaged with tooth track. The utility model discloses a sample places the flexible of platform, can real-time inspection sample with the burning condition under the different distances of burning things which may cause a fire disaster, make to measure more accurately for the instrument is more automatic.

Description

Sample placing table of cone calorimeter

Technical Field

The utility model relates to a combustion performance detects technical field, and more specifically says that it relates to a platform is placed to sample of toper calorimeter.

Background

With economic development and social progress, the frequency of fire and the resulting losses are increasing. Nowadays, the loss caused by fire can not be counted every year, so people pay more attention to the research on fire. The test environment of the cone calorimeter is considered to represent the combustion environment of an actual fire, and the cone calorimeter is adopted by more and more laboratories around the world since the introduction of National Institute of Standards and Technology (NIST) (national institute of standards and technology NBS) in 1982, and the functions of the cone calorimeter are more and more perfect. The cone calorimeter can be used for grading the combustion risk of the material, predicting the combustibility of the material in a large fire, researching the combustion condition of the material in various flame-retardant systems and the flame-retardant mechanism and the like. However, the samples used for the cone calorimeter test must be plates, and according to the requirements of ISO 5660-. However, the device is more suitable for solid samples or samples which do not melt and drip when burning, such as building materials and the like. At present, various substances which are easy to cause fire are concerned more and more, and besides building materials, substances such as paint, asphalt, oil and the like are concerned more and more. When the cone calorimeter is used for testing liquid samples or testing samples which can melt and drip during combustion, the device described in ISO 5660-2002 cannot contain or lose mass during combustion, so that the test is inaccurate and has poor repeatability.

The Chinese patent with the publication number of CN204832083U discloses a textile material sample carrying table for a cone calorimeter, which comprises a square box body and a sample pressing frame corresponding to an upper port of the box body, wherein a supporting plate capable of moving vertically is arranged in the box body, a screw rod is screwed through a nut fixedly arranged at the center of a bottom plate of the box body, the upper end of the screw rod is connected with the supporting plate through a bearing, a heat insulation brick embedded with a temperature sensor is arranged on the supporting plate, inserting plates are arranged on two sides of the bottom of the square box body, the square box body is inserted on a height adjusting frame through the inserting plates, and a plurality of positioning holes distributed vertically are arranged on the height adjusting frame. The clamping bars are changed to penetrate through different positioning holes, so that the height of the tested sample from the fire source is adjusted.

The utility model discloses also provide a technical scheme and solved the sample and placed the platform and can not stretch out and draw back to can not inspect in real time the problem of the burning condition of sample under with the different distances in burning things which may cause a fire disaster.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a platform is placed to toper calorimeter's sample also, solved the sample and placed the platform and can not stretch out and draw back to can not inspect in real time the problem of the sample with the burning condition under the different distances of burning things which may cause a fire disaster.

The above technical purpose of the present invention can be achieved by the following technical solutions: place platform and instrument body including the sample, the instrument body is equipped with and holds the sample places the cavity of platform, the sample is placed the platform and is included square case, bracing piece and base, the bracing piece is used for connecting square case with the base, the bracing piece includes interior pole and outer tube, the one end of outer tube with base fixed connection, the one end of interior pole with square case fixed connection, the outer tube is equipped with and is used for interior pole male cavity one, cavity one is equipped with and is used for going up and down the drive arrangement of interior pole, drive arrangement includes gear and motor one, motor one with the inner wall fixed connection of cavity one, the gear box is established on the output shaft of motor one, one side of interior pole be equipped with gear engaged with tooth way.

Through adopting above-mentioned technical scheme, through setting up drive arrangement, when motor one starts, the cover is established at its output epaxial gear revolve, gear revolve just drives the tooth track rather than meshing and reciprocates, because the tooth track just can stretch out the outer tube in interior pole on interior pole, interior pole and square case fixed connection, square case just can the height-adjusting, when making the sample be heated, through the height-adjusting, the burning condition of real-time inspection sample under with the different distances in burning source, make to measure more accurately, the instrument is more automatic.

The utility model discloses further set up to: one side, away from the tooth path, of the inner rod is provided with a plurality of limiting grooves, the first cavity is further provided with a fixing device used for fixing the inner rod, the fixing device comprises a second motor, a lead screw and a supporting block, the second motor is fixedly connected with the first cavity, one end of the lead screw is connected with an output shaft of the second motor, the supporting block can be inserted into the limiting grooves, the bottom of the supporting block is provided with a fixedly connected moving block, and the moving block is sleeved on the lead screw.

By adopting the technical scheme, through setting the fixing device, when the second motor operates, the screw rod sleeved on the output shaft of the second motor rotates, the screw rod rotates to drive the movable block sleeved on the screw rod to move back and forth, and the movable block is fixedly connected with the supporting block, so that the supporting block can move back and forth and can be far away from and embedded in the limiting groove, and when the first motor stops, the second motor operates to embed the supporting block in the limiting groove to play a supporting role, so that the instrument is more automatic.

The utility model discloses further set up to: the inner wall of the first cavity is fixedly connected with a plurality of fixing rods, the fixing rods are symmetrically located on two sides of the second motor, and the moving block is sleeved on the fixing rods.

By adopting the technical scheme, the fixed rod is arranged, and the moving block is sleeved on the fixed rod, so that the moving block is more stable when moving back and forth.

The utility model discloses further set up to: the bottom of the inner rod is fixedly connected with a limiting block.

By adopting the technical scheme, the inner rod is prevented from being separated from the outer tube when the inner rod is lifted by arranging the limiting block.

The utility model discloses further set up to: the base is provided with a second cavity, the second cavity is provided with a spring block, the spring block comprises a square spring and a fixed block, one end of the square spring is fixedly connected to the inner wall of the second cavity, and the other end of the square spring is fixedly connected with the fixed block.

Through adopting above-mentioned technical scheme, through setting up the spring block, when the base will be put into the cavity, through the extrusion, square spring produces deformation, and fixed block income cavity two just can easily put into the cavity of instrument body, and when putting into the cavity completely, square spring just supports the fixed block to the inner wall on through the elasticity of oneself, plays the fixed action.

The utility model discloses further set up to: chamber two still is equipped with the spring assembly who is used for contracting the spring piece, spring assembly includes axis of rotation, bearing structure and spring, bearing structure's one end is passed through rotation axis connection, bearing structure's the other end stretches out the base, bearing structure includes support arm one and support arm two, axis of rotation fixed connection be in on chamber two's the inner wall, the one end fixed connection of spring is on support arm one, the other end fixed connection of spring is on support arm two, spring piece fixed connection be in support arm two is kept away from one side of spring.

Through adopting above-mentioned technical scheme, through setting up spring assembly, the extrusion stretches out two support arms of base for the spring produces deformation, and support arm two is rotatory round the axis of rotation, is close to each other with support arm one, and the spring block is along with the removal of support arm one shrink to in the cavity two, when making to take out the sample and place the platform, it is more convenient.

The utility model discloses further set up to: and the inner wall of the cavity is provided with a fixing groove corresponding to the spring block.

Through adopting above-mentioned technical scheme, through setting up the fixed slot for when the cavity was put into to the base, the spring block was automatic to be opened, and the card plays the fixed action in the fixed slot.

The utility model discloses further set up to: the inner wall of the square box is provided with a plurality of scales.

Through adopting above-mentioned technical scheme, through setting up the scale, more audio-visual sample that carries on for experimental data is more accurate.

To sum up, the utility model discloses following beneficial effect has:

through setting up drive arrangement, when motor one starts, the cover is established at its epaxial gear revolve of output, and gear revolve just drives the tooth track rather than meshing and reciprocates, because the tooth track just can stretch out the outer tube in pole on interior pole, interior pole and square case fixed connection, square case just can the height-adjusting for when the sample is heated, through the height-adjusting, the burning condition of real-time inspection sample under with the different distances in burning things which may cause a fire disaster, make the measurement more accurate, the instrument is more automatic. Through setting up spring assembly, the extrusion stretches out two support arms of base for the spring produces deformation, and support arm two is rotatory round the axis of rotation, merges with support arm one, and the spring block is along with the removal of support arm one in contracting cavity two, when making to take out the sample and place the platform, and is more convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of a sample placing table of a cone calorimeter of the present invention, which is mainly used for showing the external structure of the sample placing table of the present invention;

fig. 2 is a cross-sectional view of the instrument body of the sample placing table of the cone calorimeter of the present invention, which is mainly used for showing the internal structure of the instrument body of the present invention;

fig. 3 is a schematic structural diagram of a lifting device of a sample placing table of a cone calorimeter of the present invention, which is mainly used for representing the external structure of the lifting device of the present invention;

FIG. 4 is a cross-sectional view of a support rod of a sample placement platform of a cone calorimeter of the present invention, which is mainly used for representing the internal structure of the support rod of the present invention;

FIG. 5 is a structural diagram of a support bar of a sample placing table of a cone calorimeter of the present invention, which is mainly used for showing the internal structure of the support bar of the present invention;

fig. 6 is a schematic structural diagram of a spring device of a sample placing table of the cone calorimeter, which is mainly used for representing the external structure of the spring device of the cone calorimeter.

In the figure: 1. a sample placement stage; 2. an instrument body; 3. a cavity; 4. a square box; 5. a support bar; 6. a base; 7. an inner rod; 8. an outer tube; 9. a first chamber; 10. a gear; 11. a first motor; 12. a tooth track; 13. a limiting groove; 14. a second motor; 15. a screw rod; 16. a support block; 17. a moving block; 18. fixing the rod; 19. a limiting block; 20. a spring block; 21. a square spring; 22. a fixed block; 23. a rotating shaft; 24. a support structure; 25. a spring; 26. a first supporting arm; 27. a second supporting arm; 28. fixing grooves; 29. calibration; 30. and a second chamber.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A sample placing table of a cone calorimeter is disclosed, as shown in figures 1-5, and comprises a sample placing table 1 and an instrument body 2, wherein the instrument body 2 is provided with a cavity 3 for accommodating the sample placing table 1, the sample placing table 1 comprises a square box 4, a support rod 5 and a base 6, 4-50mm scales 29 are carved on the inner wall of the square box 4, one side of the base 6 is provided with a cavity II 30, the inner wall of the cavity II 30 is welded with a square spring 21, the other end of the square spring 21 is welded with a fixed block 22, the inner wall of the cavity 3 is provided with a fixed groove 28 for accommodating the fixed block 22, the support rod 5 is used for connecting the square box 4 and the base 6, the support rod 5 comprises an inner rod 7 and an outer tube 8, the bottom of the inner rod 7 is welded with a limit block 19, the bottom of the outer tube 8 is welded on the base 6, the top of the inner rod 7 is welded, the cavity I9 is provided with a driving device used for lifting the inner rod 7, the driving device comprises a gear 10 and a motor I11, the motor I11 can be a micro direct current motor with the model of ET-DCM2513R, the motor I11 is formed by welding the inner wall of the cavity I9, the gear 10 is sleeved on an output shaft of the motor I11, one side of the inner rod 7 is provided with a tooth path 12 meshed with the gear 10, one side of the inner rod 7, far away from the tooth path 12, is provided with a limiting groove 13, the inside of the cavity I9 is also provided with a fixing device used for fixing the inner rod 7, the fixing device comprises a motor II 14, a screw rod 15 and a supporting block 16, the motor II 14 is welded on the inner wall of the cavity I9, the motor II 14 can also be a micro direct current motor with the model of ET-DCM2513R, one end of the screw rod 15 is connected with the output shaft of the motor II 14, the, symmetrical fixing rods 18 are arranged on two sides of the second motor 14, the fixing rods 18 are welded on the inner wall of the first cavity 9, and the moving block 17 is sleeved on the screw rod 15 and the fixing rods 18.

As shown in fig. 1, 2 and 6, the second chamber 30 is further provided with a spring device for contracting the spring block 20, the spring device includes a rotating shaft 23, a supporting structure 24 and a spring 25, one end of the supporting structure 24 is rotatably connected to the rotating shaft 23 through a bolt, the other end of the supporting structure 24 extends out of the base 6, the supporting structure 24 includes a first supporting arm 26 and a second supporting arm 27, the rotating shaft 23 is welded on the inner wall of the second chamber 30, one end of the spring 25 is welded on the first supporting arm 26, the other end of the spring 25 is welded on the second supporting arm 27, one side of the second supporting arm 27, which is far away from the spring 25, is welded with the square spring 21, and the other end of.

The working principle is as follows: by arranging the driving device, when the motor I11 is started, the gear 10 sleeved on the output shaft rotates, the gear 10 rotates to drive the toothed track 12 meshed with the gear to move up and down, the inner rod 7 can extend out of the outer pipe 8 due to the fact that the toothed track 12 is arranged on the inner rod 7, the inner rod 7 is fixedly connected with the square box 4, the square box 4 can adjust the height, by arranging the fixing device, when the motor II 14 runs, the lead screw 15 sleeved on the output shaft of the motor II 14 rotates, the lead screw 15 rotates to drive the moving block 17 sleeved on the lead screw 15 to move back and forth, the moving block 17 is fixedly connected with the supporting block 16, the supporting block 16 can move back and forth and can be far away from and embedded in the limiting groove 13, when the motor I11 stops, the motor II 14 runs to embed the supporting block 16 in the limiting groove 13 to play a supporting role, and by arranging the spring device, make spring 25 produce deformation, support arm two 27 is rotatory round axis of rotation 23, is close to each other with support arm one 26, and spring block 20 is along with the removal of support arm one 26 shrink in two 30 cavities for when will taking out sample and place platform 1, it is more convenient, make to measure more accurately, it is more convenient to operate, and the instrument is more automatic.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a platform is placed to sample of toper calorimeter, includes that the sample places platform (1) and instrument body (2), instrument body (2) are equipped with and hold cavity (3) that platform (1) was placed to the sample, its characterized in that: the sample placing table (1) comprises a square box (4), a supporting rod (5) and a base (6), the supporting rod (5) is used for connecting the square box (4) and the base (6), the support rod (5) comprises an inner rod (7) and an outer tube (8), one end of the outer tube (8) is fixedly connected with the base (6), one end of the inner rod (7) is fixedly connected with the square box (4), the outer tube (8) is provided with a first chamber (9) for inserting the inner rod (7), the first chamber (9) is provided with a driving device for lifting the inner rod (7), the driving device comprises a gear (10) and a first motor (11), the first motor (11) is fixedly connected with the inner wall of the first chamber (9), the gear (10) is sleeved on an output shaft of the motor I (11), and a tooth path (12) meshed with the gear (10) is arranged on one side of the inner rod (7).

2. The sample holding stage of a cone calorimeter of claim 1, wherein: one side of the inner rod (7) far away from the tooth path (12) is provided with a plurality of limiting grooves (13), the first chamber (9) is further provided with a fixing device used for fixing the inner rod (7), the fixing device comprises a second motor (14), a lead screw (15) and a supporting block (16), the second motor (14) is fixedly connected with the first chamber (9), one end of the lead screw (15) is connected with an output shaft of the second motor (14), the supporting block (16) can be inserted into the limiting grooves (13), the bottom of the supporting block (16) is provided with a fixedly connected moving block (17), and the moving block (17) is sleeved on the lead screw (15).

3. The sample holding stage of a cone calorimeter of claim 2, wherein: the inner wall of the first cavity (9) is further fixedly connected with a plurality of fixing rods (18), the fixing rods (18) are symmetrically located on two sides of the second motor (14), and the moving block (17) is sleeved on the fixing rods (18).

4. The sample holding stage of a cone calorimeter of claim 3, wherein: the bottom of the inner rod (7) is fixedly connected with a limiting block (19).

5. The sample holding stage of a cone calorimeter of claim 1, wherein: base (6) are equipped with cavity two (30), cavity two (30) are equipped with spring block (20), spring block (20) are including square spring (21) and fixed block (22), the one end fixed connection of square spring (21) on the inner wall of cavity two (30), the other end of square spring (21) with fixed block (22) fixed connection.

6. The sample holding stage of a cone calorimeter of claim 5, wherein: chamber two (30) still is equipped with the spring assembly who is used for contracting spring piece (20), spring assembly includes axis of rotation (23), bearing structure (24) and spring (25), the one end of bearing structure (24) is passed through axis of rotation (23) are connected, the other end of bearing structure (24) stretches out base (6), bearing structure (24) are including support arm one (26) and support arm two (27), axis of rotation (23) fixed connection be in on the inner wall of chamber two (30), the one end fixed connection of spring (25) is on support arm one (26), the other end fixed connection of spring (25) is on support arm two (27), spring piece (20) fixed connection be in support arm two (27) are kept away from one side of spring (25).

7. The sample holding stage of a cone calorimeter of claim 6, wherein: and the inner wall of the cavity (3) is provided with a fixing groove (28) corresponding to the spring block (20).

8. The sample holding stage of a cone calorimeter of claim 1, wherein: the inner wall of the square box (4) is provided with a plurality of scales (29).