CN215676802U

CN215676802U - Measuring gauge for needle flame test

Info

Publication number: CN215676802U
Application number: CN202122315064.9U
Authority: CN
Inventors: 赵龙涛; 王青; 徐小林; 刘洋; 刘爽; 虞翔; 韩仲瑞; 张文聪; 马世平; 万艳; 张德涛
Original assignee: Zhao Longtao
Current assignee: Zhao Longtao
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-01-28
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a gauge for a needle flame test, which comprises a base part, a supporting part and a conical head part, wherein the base part is fixedly connected with the lower end of the supporting part and is vertical to the supporting part, the conical head part is connected with the upper end of the supporting part, the lower end surface of the conical head part is vertical to the supporting part, the base part, the supporting part and the conical head part are integrally formed, a combustor needle tube positioning hole for fixing a combustor needle tube is arranged on the base part, a fixed supporting seat positioning mark aligned with the upper end surface of the combustor needle tube is arranged on the supporting part, and a sample side surface ignition position positioning mark for positioning a sample side surface ignition position is arranged below the conical head part. The joint of the upper cone part and the lower cone part is a flame height positioning mark. The gauge for the needle flame test provided by the utility model has a simple structure, does not need to be repeatedly moved, can complete the whole process test of the needle flame by one-time positioning, does not need excessive positioning, improves the efficiency and improves the test accuracy.

Description

Measuring gauge for needle flame test

Technical Field

The utility model relates to the technical field of detection devices, in particular to a gauge for a pin flame test.

Background

The best method for checking the fire risk of electrician and electronic products is to truly reproduce the conditions actually existing, and to check and describe the reaction characteristics of materials, products or components to heat and flame under controlled experimental conditions, which can be used as the element of fire risk assessment. And adjusting the height of the flame by adopting a gauge. The existing gauge for the needle flame test only comprises flame height calibration in the needle flame test, a digital caliper or a vernier caliper is needed to determine the distance between a sample bottom ignition point and a sample side ignition point, the operation is inconvenient due to the problem of operation space, and the measurement needs to be manually adjusted for many times, so that the measurement error is larger.

Chinese patent CN201310675832.9 discloses a multipurpose gauge, which comprises: an electrode distance detecting section for detecting a distance between two electrodes in a tracking test; the first distance detection part is used for detecting the distance between the nozzle end of the burner and the bottom surface of the sample in the needle flame test; the second distance detection part is used for detecting the distance between the nozzle end of the burner and the side surface of the sample in the needle flame test; and a flame height detection unit for detecting the height of the flame in the needle flame test. This patent need not frequently adjust slide caliper's numerical value in order to detect different parameters, but the same needs to operate the many times and detect different parameters, still has the manual operation inconvenience, needs the problem of many times location.

Therefore, the prior art needs to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the background art and provide a gauge for a needle flame test. The gauge for the needle flame test provided by the utility model has the advantages that the structure is simple, the operation is convenient, the needle flame test can be completed in the whole process without repeated movement and one-time positioning, excessive positioning is not needed, the efficiency is improved, and the test accuracy is improved.

The technical purpose of the utility model is realized by the following technical scheme:

a gauge for a needle flame test comprises a base portion, a supporting portion and a conical head portion, wherein the base portion is fixedly connected with the lower end of the supporting portion and is perpendicular to the supporting portion, a fixed supporting base is detachably connected to the lower portion of the base portion, the conical head portion is connected with the upper end of the supporting portion, the lower end face of the conical head portion is perpendicular to the supporting portion, the base portion, the supporting portion and the conical head portion are integrally formed, a combustor needle tube positioning hole used for fixing a combustor needle tube is formed in the base portion, a fixed supporting base positioning mark aligned with the top end of the combustor needle tube is arranged on the supporting portion, and a sample side fire applying position positioning mark used for positioning a sample side fire applying position is arranged below the conical head portion.

The gauge for the needle flame test comprises a conical head part, a conical head part and a measuring part, wherein the conical head part comprises an upper conical part and a lower conical part, and the joint of the upper conical part and the lower conical part is a flame height positioning mark for positioning the flame height.

The gauge for a pin flame test further comprises a sample bottom fire position location marker, and the sample bottom fire position location marker is arranged on the edge of the upper cone part.

The gauge for pin flame test is characterized in that the fixed support seat positioning mark is fixedly arranged on the support part and is perpendicular to the support part.

The gauge for needle flame test is characterized in that the distance between the free end of the fixed support seat positioning mark and the top end of the burner needle tube is smaller than the vertical distance between the burner needle tube positioning hole and the supporting part.

The gauge for needle flame test is characterized in that the sample side fire applying position locating mark is fixedly arranged below the conical head part and forms an included angle of 45 degrees with the lower end surface of one side of the conical head part facing the burner needle tube.

When the burner needle tube is horizontally rotated by an included angle of 45 degrees clockwise, the distance L2 between the free end of the sample side fire-applying position positioning target and the top end of the burner needle tube is 5mm +/-1 mm.

When the burner needle tube horizontally rotates clockwise by an included angle of 45 degrees, the top end surface of the sample bottom fire position location target is parallel to the horizontal plane, and the vertical distance L1 from the top end of the burner needle tube to the top end surface of the sample bottom fire position location target is 8mm +/-1 mm.

When the base part is horizontally arranged, the burner needle tube is arranged in the burner needle tube positioning hole, the burner needle tube is perpendicular to the base part, and the vertical distance L3 between the top end of the burner needle tube and the flame height positioning mark is 12mm +/-1 mm.

The gauge for pin flame test as described above, wherein the base portion, the support portion and the conical head portion are made of a metal material.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. the gauge for the needle flame test provided by the utility model has the advantages of calibrating the height of the needle flame, calibrating the position of the needle tube of the burner, calibrating the position of the bottom fire point of the sample and calibrating the position of the side fire point of the sample, along with simple structure, convenience in operation, no need of repeated movement, capability of completing the whole process test of the needle flame by one-time positioning, no need of excessive positioning, capability of quickly positioning, overcoming the inconvenience caused by the need of adopting a digital display caliper or a vernier caliper to determine the distance in the prior art, improving the efficiency and improving the test accuracy.

2. The gauge for the needle flame test is provided with the burner needle tube positioning hole and the fixed supporting base, so that the position of the burner needle tube is convenient to adjust and more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following will briefly introduce embodiments or drawings used in the description of the prior art, and it is obvious that the following description is only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts.

Fig. 1 is a schematic perspective view of a gauge for a pin flame test according to the present invention;

FIG. 2 is a schematic side view of a gauge for a pin flame test according to the present invention;

FIG. 3 is an enlarged view of part A of FIG. 2;

FIG. 4 is a schematic view of a vertical horizontal plane of a burner needle tube when the gauge for needle flame test is used according to the present invention;

FIG. 5 is a schematic structural view of a gauge for needle flame test according to the present invention, wherein the burner needle tube and the horizontal plane form an included angle of 45 degrees.

In the figure, 1-burner needle tube positioning hole, 2-fixed support seat positioning mark, 3-flame height positioning mark, 4-sample bottom fire position positioning mark, 5-sample side fire position positioning mark, 6-fixed support base, 7-burner needle tube, 8-schematic flame, 100-base part, 200-support part, 300-cone part, 310-upper cone part and 320-lower cone part.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1-3, a gauge for a needle flame test comprises a base part 100, a supporting part 200 and a conical head part 300, wherein the base part 100 is fixedly connected with the lower end of the supporting part 200 and is perpendicular to the supporting part 200, a fixed supporting base 6 is detachably connected with the lower part of the base part 100, the conical head part 300 is connected with the upper end of the supporting part 200, the lower end surface of the conical head part 300 is perpendicular to the supporting part 200, the base part 100, the supporting part 200 and the conical head part 300 are integrally formed, a burner needle tube positioning hole 1 for fixing a burner needle tube 7 is arranged on the base part 100, a fixed supporting seat positioning mark 2 aligned with the top end of the burner needle tube 7 is arranged on the supporting part 200, and a sample side firing position positioning mark 5 for positioning a sample side firing position is arranged below the conical head part 300. In this embodiment, the burner needle 7 is formed by a tube having a length of at least 35mm, an aperture of 0.5mm ± 0.1mm, and an outer diameter of not more than 0.9 mm. The cone head 300 adopts a structure in the prior art, and is specifically referred to the national standard GB/T5169.5-2008 part 5 of the fire hazard test of electrician and electronic products: test flame, pin flame test method device, confirmation test method and guide rule in the applicable gauge for adjusting flame height.

Preferably, the cone head 300 comprises an upper cone part 310 and a lower cone part 320, and the connection between the upper cone part 310 and the lower cone part 320 is a flame height positioning mark 3 for positioning the flame height.

Preferably, the device further comprises a sample bottom fire-applying position fixing target 4, and the sample bottom fire-applying position fixing target 4 is arranged at the edge of the upper cone part 310.

Preferably, the fixed support base locator card 2 is fixedly disposed on the support portion 200 and perpendicular to the support portion 200.

Preferably, the distance between the free end of the fixing support base positioning mark 2 and the top end of the burner needle 7 is smaller than the vertical distance between the burner needle positioning hole 1 and the supporting part 200.

Preferably, the sample side fire application position locating mark 5 is fixedly arranged below the conical head part 300 and forms an included angle of 45 degrees with the lower end surface of one side of the conical head part 300 facing the burner needle tube 7.

Preferably, when the burner tube 7 is horizontally rotated at an angle of 45 ° clockwise, the distance L2 between the free end of the sample side fire position marker 5 and the tip end of the burner tube 7 is 5mm ± 1 mm.

Preferably, when the burner needle 7 is rotated horizontally and clockwise by an included angle of 45 °, the tip end face of the sample bottom fire position indicator 4 is parallel to the horizontal plane, and the vertical distance L1 from the tip end of the burner needle 7 to the tip end face of the sample bottom fire position indicator 4 is 8mm ± 1 mm.

Preferably, when the base part 100 is horizontally placed, the burner needle pipe 7 is installed in the burner needle pipe positioning hole 1, the burner needle pipe 7 is arranged vertically to the base part 100, and the vertical distance L3 between the top end of the burner needle pipe 7 and the flame height positioning mark 3 is 12mm ± 1mm, which is the height of the indication flame 8.

Preferably, the base portion 100, the support portion 200 and the countersunk portion 300 are made of a metal material. More preferably, a hard material such as stainless steel which is less likely to deform is used.

Please refer to fig. 4, when the present embodiment is used, a hole corresponding to the burner needle tube positioning hole 1 is formed on the fixing support base 6, the burner needle tube 7 in the present embodiment passes through the burner needle tube positioning hole 1 and the fixing support base 6, and the fixing support base positioning mark 2 is aligned with the top surface of the burner needle tube 7 by adjusting the fixing support base 6, so that the flame height during the needle flame test reaches the position of the flame height positioning mark 3, which can meet the flame height requirement of 12mm ± 1 mm.

As shown in fig. 5, the burner needle tube 7 is rotated clockwise by an included angle of 45 degrees as a whole, and the vertical distance L1 from the top end of the burner needle tube 7 to the top end face of the sample bottom ignition position locator 4 is adjusted to be 8mm ± 1mm, so that the sample bottom ignition point needle flame test can be performed; and the distance between the free end of the sample side surface ignition position positioning mark 5 and the top end of the burner needle tube 7 is 5mm +/-1 mm, so that the sample side surface ignition and needle flame ignition test can be carried out.

The gauge for the needle flame test provided by the utility model has the advantages of simple structure, convenience in operation, no need of repeated movement, capability of calibrating the height of the needle flame, calibrating the position of a needle tube of a combustor, calibrating the position of a sparking point at the bottom of a sample and calibrating the position of a sparking point at the side surface of the sample, capability of completing the whole process test of the needle flame by one-time positioning, no need of excessive positioning, efficiency improvement and test accuracy improvement.

The foregoing is only a preferred embodiment of the present invention, and 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 gauge for the needle flame test is characterized by comprising a base portion (100), a supporting portion (200) and a conical head portion (300), wherein the base portion (100) is fixedly connected with the lower end of the supporting portion (200) and is perpendicular to the supporting portion (200), a fixed supporting base (6) is detachably connected to the lower portion of the base portion (100), the conical head portion (300) is connected with the upper end of the supporting portion (200), the lower end face of the conical head portion (300) is perpendicular to the supporting portion (200), the base portion (100), the supporting portion (200) and the conical head portion (300) are integrally formed, a combustor needle tube positioning hole (1) used for fixing a combustor needle tube (7) is formed in the base portion (100), a fixed supporting base (2) aligned with the top end of the combustor needle tube (7) is arranged on the supporting portion (200), and a sample side surface fire applying position positioning mark (5) used for positioning a sample side surface fire applying position is arranged below the conical head portion (300) .

2. The gauge for the needle flame test of claim 1, wherein the cone head (300) comprises an upper cone part (310) and a lower cone part (320), and the joint of the upper cone part (310) and the lower cone part (320) is a flame height positioning mark (3) for positioning the flame height.

3. A gauge for a pin flame test according to claim 2, further comprising a specimen bottom fire position index (4), wherein the specimen bottom fire position index (4) is provided at the edge of the upper cone portion (310).

4. A gauge for needle flame test according to claim 1, wherein the fixed support locator (2) is fixedly arranged on the support (200) and perpendicular to the support (200).

5. A gauge for needle flame tests as claimed in claim 4, wherein the distance from the free end of the fixing support locator (2) to the tip of the burner tube (7) is smaller than the vertical distance from the burner tube locator (1) to the support (200).

6. A gauge for needle flame test according to claim 1, wherein the sample side flame application position index (5) is fixedly arranged below the conical head portion (300) and forms an angle of 45 ° with the lower end surface of the side of the conical head portion (300) facing the burner needle tube (7).

7. A gauge for needle flame tests as claimed in claim 6, wherein the distance L2 between the free end of the sample side flame position locator (5) and the tip of the burner needle (7) is 5mm ± 1mm when the burner needle (7) is rotated horizontally clockwise by an angle of 45 °.

8. A gauge for needle flame test according to claim 3, wherein when the burner tube (7) is rotated horizontally clockwise by an angle of 45 °, the top end face of the bottom fire position indicator (4) of the specimen is parallel to the horizontal plane, and the vertical distance L1 from the top end of the burner tube (7) to the top end face of the bottom fire position indicator (4) of the specimen is 8mm ± 1 mm.

9. A gauge for needle flame tests according to claim 2, characterized in that when the base part (100) is placed horizontally, the burner needle tube (7) is arranged perpendicularly to the base part (100), and the vertical distance L3 between the tip of the burner needle tube (7) and the flame height position scale (3) is 12mm ± 1 mm.

10. A gauge for needle flame tests according to claim 1, characterized in that said base portion (100), stem portion (200) and cone portion (300) are made of metal.