CN212622434U - Automatic flame detection device for horizontal combustion test - Google Patents
Automatic flame detection device for horizontal combustion test Download PDFInfo
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- CN212622434U CN212622434U CN202021464317.8U CN202021464317U CN212622434U CN 212622434 U CN212622434 U CN 212622434U CN 202021464317 U CN202021464317 U CN 202021464317U CN 212622434 U CN212622434 U CN 212622434U
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Abstract
The invention relates to the field of safety detection, in particular to the field of electric appliance safety detection, and more particularly relates to an automatic flame detection device for a horizontal combustion test, which comprises a first ultraviolet detector, a second ultraviolet detector, a linear guide rail and a first sliding block, wherein the first ultraviolet detector and the second ultraviolet detector are respectively fixed on the first sliding block and the second sliding block; the ultraviolet detector is characterized by further comprising a controller, a switch of the controller and a display screen, wherein the display screen is connected with the controller and used for displaying data, and the controller is respectively connected with the first ultraviolet detector and the second ultraviolet detector. Therefore, the method replaces the naked eye artificial judgment of an inspector, obviously improves the determination accuracy of the combustion time in the horizontal combustion test, and provides accurate calculation basis for test results such as linear combustion rate and the like. Meanwhile, because the ultraviolet detector is used for measurement, human errors do not exist, and the measurement consistency can be improved.
Description
Technical Field
The invention relates to the field of safety detection, in particular to the field of electric appliance safety detection, and more particularly relates to an automatic flame detection device for a horizontal combustion test.
Background
The burning test is a test in which the composition or the combustibility of a test piece is evaluated by burning. In the safety detection test of household appliances and electrical and electronic products, for non-metallic materials such as plastics, the safety detection method adopts IEC 60695-11-10 according to the national standard GB/T2408-2008: 1999 "fire hazard test-part 11-10: test flame- -50W horizontal and vertical flame test method "- -and 8 months in 2003 for IEC 60695-11-10: 1999 issued repair orders. The measurement of combustion performance by both the horizontal method and the vertical method is specified therein.
The determination of the linear burn rate and the after-flame/afterglow time as well as the burning length of the sample are further specified in this standard. The specific determination method/principle is that one end of a rectangular strip sample is fixed on a horizontal or vertical clamp, the other end of the rectangular strip sample is exposed in specified test flame, and the horizontal combustion behavior of the sample is evaluated by measuring the linear combustion rate; the vertical burning behavior of the test specimen was evaluated by measuring the remaining flame and afterglow times, the extent of burning, and the dripping of burning particles.
The invention aims at the horizontal combustion, namely, one end of a rectangular strip sample is fixed on a horizontal clamp, and the horizontal combustion behavior of the test is evaluated by measuring the linear combustion rate.
The existing testing instruments, whether manual or automatic, put the horizontal and vertical burning tests together, i.e. various horizontal and vertical burning testers. The tester has a housing, a control system with an automatic ignition function and necessary test supports.
However, most of the flame detection is judged manually at present, the disadvantage of manual judgment is obvious, and once the reaction is observed by a person, the recorded experimental data and the real data have errors; secondly, because the observation needs the high concentration of people, the tester produces tired sense easily, not only influences experimental efficiency, also influences experimental degree of accuracy.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic detection device aiming at a horizontal combustion test in a horizontal and vertical combustion test, wherein the automatic detection device is arranged in a horizontal and vertical combustion tester and provides an automatic detection function for the horizontal combustion test, so that the judgment by naked eyes of a detector can be replaced, the test accuracy is improved, and the detection consistency is improved.
In order to solve the technical problem, the invention discloses an automatic flame detection device for a horizontal combustion test, which comprises a first ultraviolet detector, a second ultraviolet detector, a linear guide rail and a first sliding block, wherein the first ultraviolet detector and the second ultraviolet detector are respectively fixed on the first sliding block and the second sliding block; the ultraviolet detector is characterized by further comprising a controller, a switch of the controller and a display screen, wherein the display screen is connected with the controller and used for displaying data, and the controller is respectively connected with the first ultraviolet detector and the second ultraviolet detector.
According to a preferable technical scheme, the ultraviolet detector detection device further comprises a first detector support and a second detector support, wherein the first ultraviolet detector is fixedly installed on the first detector support, and the second ultraviolet detector is fixedly installed on the second detector support.
As another preferable technical solution, the ultraviolet detector further comprises an adjusting device, and the adjusting device is used for adjusting the distance between the first ultraviolet detector and the second ultraviolet detector.
Further preferably, the adjusting device comprises an adjusting rack and an adjusting knob, the adjusting rack comprises a first adjusting rack and a second adjusting rack, the adjusting knob is meshed with the first adjusting rack and the second adjusting rack, the first sliding block is fixed on the first adjusting rack, and the second sliding block is fixed on the second adjusting rack.
Or the adjusting device comprises an adjusting rack and an adjusting knob, the adjusting rack comprises a first adjusting rack and a second adjusting rack, the adjusting knob comprises a first adjusting knob and a second adjusting knob, the first adjusting knob is meshed with the first adjusting rack, the second adjusting knob is meshed with the second adjusting rack, the first sliding block is fixed on the first adjusting rack, and the second sliding block is fixed on the second adjusting rack.
Because the adjusting knob is meshed with the adjusting rack, when the adjusting knob is rotated, the adjusting rack moves to drive the first sliding block and the second sliding block on the adjusting knob to move, and the purpose of adjusting the first ultraviolet detector and the second ultraviolet detector is achieved.
When two adjusting knobs are adopted, an operator controls the first adjusting rack and the second adjusting rack to move through the first knob and the second knob respectively.
Because the adjusting knob is meshed with the first adjusting rack and the second adjusting rack, when the adjusting knob is rotated, the first adjusting rack and the second adjusting rack move towards or away from each other at the same time.
Further preferably, the ultraviolet detector further comprises a shell, wherein a detection window is arranged on the shell, and the detection window is arranged corresponding to the first ultraviolet detector and the second ultraviolet detector.
In the detection process of the automatic flame detection device for the horizontal combustion test disclosed by the invention, floating objects can be generated due to the combustion of the sample strips. Therefore, if placed directly in the detection environment, these floats tend to adhere to the detector, thereby destroying the sensitivity of the ultraviolet detector. Therefore, through the setting of shell and detection window, can enough guarantee that ultraviolet detector surveys the state of flame in the detection environment through the detection window, can guarantee again that ultraviolet detector receives the protection of shell, can not be because of long-time repetitious usage back, the adhesion of burning floater causes the detector sensitivity to reduce.
When setting up the shell, switch, display screen setting are on the shell, conveniently collect data and operation.
It is further preferred that the touch sensitive display screen is selected.
More preferably, the housing is provided with a heat dissipation port.
In order to ensure the stability of the flame automatic detection device for the horizontal combustion test, a shell anchor can be arranged below the shell.
By adopting the technology disclosed by the invention, the automatic detection of the flame in the horizontal combustion test process can be realized, so that the naked eye artificial judgment of a detector is replaced, the measurement accuracy of the combustion time in the horizontal combustion test is obviously improved, and an accurate calculation basis is provided for test results such as linear combustion rate and the like. Meanwhile, because the ultraviolet detector is used for measurement, human errors do not exist, and the measurement consistency can be improved.
Drawings
Fig. 1 is a schematic view of the installation position of the automatic flame detection device for the horizontal combustion test in a detection environment.
Fig. 2 is a schematic diagram of an automatic flame detection device for a horizontal combustion test.
FIG. 3 is a top view of the flame automatic detection device for horizontal burning test.
Fig. 4 is a schematic view of a linkage mechanism.
Detailed Description
In order that the invention may be better understood, we now provide further explanation of the invention with reference to specific examples.
The horizontal-vertical burning test apparatus shown in fig. 1 comprises a horizontal-vertical adjusting bracket 1, and a spline 2 held on the horizontal-vertical adjusting bracket 1. The automatic flame detection device a for the horizontal combustion test disclosed in the present invention is, as shown in fig. 1, disposed inside a horizontal and vertical combustion tester. According to the requirements, the automatic flame detection device for the horizontal combustion test disclosed by the invention can also be lifted in a vertical plane, the height of the automatic flame detection device is ensured by a common supporting mode such as a rack, or an adjustable rack is arranged, so that the adjustment of the vertical height is facilitated.
Referring to fig. 2 and 3 in detail, the automatic flame detection device for the horizontal combustion test includes a first ultraviolet detector 3, a second ultraviolet detector 4, the first ultraviolet detector 3 and the second ultraviolet detector 4 are respectively fixed on a first slider 5 and a second slider 6, and further includes a linear guide 7, the first slider 5 and the second slider 6 are mounted on the linear guide 7; the ultraviolet detector also comprises a controller 8, a switch 9 of the controller and a display screen 10, wherein the display screen is connected with the controller and used for displaying data, and the controller is respectively connected with the first ultraviolet detector and the second ultraviolet detector.
In this embodiment, the ultraviolet detector further preferably includes a first detector support 11 and a second detector support 12, the first ultraviolet detector 3 is fixedly mounted on the first detector support 11, and the second ultraviolet detector 4 is fixedly mounted on the second ultraviolet detector support 12.
Further preferably, in this embodiment, an adjusting device 13 is further included, and the adjusting device 13 is configured to adjust a distance between the first ultraviolet detector and the second ultraviolet detector.
The adjusting device comprises an adjusting rack and an adjusting knob, the adjusting rack comprises a first adjusting rack and a second adjusting rack, the adjusting knob is meshed with the first adjusting rack and the second adjusting rack, the first sliding block is fixed on the first adjusting rack, and the second sliding block is fixed on the second adjusting rack.
Or the adjusting device comprises an adjusting rack and an adjusting knob, the adjusting rack comprises a first adjusting rack and a second adjusting rack, the adjusting knob comprises a first adjusting knob and a second adjusting knob, the first adjusting knob is meshed with the first adjusting rack, the second adjusting knob is meshed with the second adjusting rack, the first sliding block is fixed on the first adjusting rack, and the second sliding block is fixed on the second adjusting rack.
In this embodiment, we use the split adjustment mode, i.e. the second adjustment mode mentioned above. The adjusting device 13 is further connected with the adjusting button through a linkage mechanism, and the position between the first sliding block and the second sliding block is adjusted by utilizing the meshing relation between the adjusting button and the first adjusting rack as well as the second adjusting rack, so that the position adjustment between the first ultraviolet detector and the second ultraviolet detector is realized.
In the present embodiment, as shown in fig. 2 to 4, the linkage mechanism includes a first joint gear 18 engaged with the adjusting device 13, a second joint gear 19 further engaged with the joint gear 18, the second joint gear 19 is linked with a third joint gear 21 through a connecting rod 20, and the third joint gear 21 is linked with an adjusting knob 22 in an engaging manner.
Because the adjusting knob is meshed with the adjusting rack, when the adjusting knob is rotated, the adjusting rack moves to drive the first sliding block and the second sliding block on the adjusting knob to move, and the purpose of adjusting the first ultraviolet detector and the second ultraviolet detector is achieved.
As shown in fig. 2 and 3, the ultraviolet detector further includes a housing 14, and the housing is provided with a detection window 15, and the detection window is arranged corresponding to the first ultraviolet detector and the second ultraviolet detector.
In the detection process of the automatic flame detection device for the horizontal combustion test disclosed by the invention, floating objects can be generated due to the combustion of the sample strips. Therefore, if placed directly in the detection environment, these floats tend to adhere to the detector, thereby destroying the sensitivity of the ultraviolet detector. Therefore, through the setting of shell and detection window, can enough guarantee that ultraviolet detector surveys the state of flame in the detection environment through the detection window, can guarantee again that ultraviolet detector receives the protection of shell, can not be because of long-time repetitious usage back, the adhesion of burning floater causes the detector sensitivity to reduce.
More preferably, the housing is provided with a heat sink 16.
In order to ensure the stability of the automatic flame detection device for the horizontal combustion test, a housing anchor 17 may be provided below the housing, as shown in fig. 2.
When the device is used, the automatic flame detection device for the horizontal combustion test is electrified, and then the switch is turned on to complete self-detection. And then, an operator adjusts the positions of the first sliding block and the second sliding block through an adjusting device, namely an adjusting knob, so that the distance between the first ultraviolet detector and the second ultraviolet detector meets the measuring range required in the standard, then the sample strip to be detected is fixed on the horizontal and vertical adjusting bracket, and the sample strip is positioned at the detection window through adjusting the horizontal height and the vertical height. And then, igniting the initial end of the sample strip to be detected by using an automatic ignition device in the horizontal and vertical combustion tester, and starting combustion of the sample strip. When the flame passes through the first ultraviolet detector, the first ultraviolet detector detects that the flame generates an electric signal, and the program starts to time; when the flame passes through the second ultraviolet detector, the second ultraviolet detector detects the fire light to generate an electric signal, and the program is ended to time. Meanwhile, after the controller receives the two signals, the combustion time is automatically calculated, and the linear combustion rate is calculated according to a preset formula. The inspector sees and records the relevant test data on the display screen. Then, the reset switch is pressed to start the next detection.
And when all the sample strips are detected, the main power supply is turned off.
What has been described above is a specific embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (9)
1. Horizontal burning test flame automatic checkout device, its characterized in that: the ultraviolet detector comprises a first ultraviolet detector, a second ultraviolet detector, a linear guide rail and a first sliding block, wherein the first ultraviolet detector and the second ultraviolet detector are respectively fixed on the first sliding block and the second sliding block; the ultraviolet detector is characterized by further comprising a controller, a switch of the controller and a display screen, wherein the display screen is connected with the controller and used for displaying data, and the controller is respectively connected with the first ultraviolet detector and the second ultraviolet detector.
2. The automatic flame detection device for the horizontal combustion test according to claim 1, wherein: the ultraviolet detector is characterized by further comprising a first detector support and a second detector support, the first ultraviolet detector is fixedly installed on the first detector support, and the second ultraviolet detector is fixedly installed on the second detector support.
3. The automatic flame detection device for the horizontal combustion test according to claim 1, wherein: the ultraviolet detector further comprises an adjusting device, and the adjusting device is used for adjusting the distance between the first ultraviolet detector and the second ultraviolet detector.
4. The automatic flame detection device for the horizontal combustion test according to claim 3, wherein: the adjusting device comprises an adjusting rack and an adjusting knob, the adjusting rack comprises a first adjusting rack and a second adjusting rack, the adjusting knob is meshed with the first adjusting rack and the second adjusting rack, the first sliding block is fixed on the first adjusting rack, and the second sliding block is fixed on the second adjusting rack;
or the adjusting device comprises an adjusting rack and an adjusting knob, the adjusting rack comprises a first adjusting rack and a second adjusting rack, the adjusting knob comprises a first adjusting knob and a second adjusting knob, the first adjusting knob is meshed with the first adjusting rack, the second adjusting knob is meshed with the second adjusting rack, the first sliding block is fixed on the first adjusting rack, and the second sliding block is fixed on the second adjusting rack.
5. The automatic flame detection device for the horizontal combustion test according to claim 1, wherein: the ultraviolet detector is characterized by further comprising a shell, wherein a detection window is arranged on the shell and corresponds to the first ultraviolet detector and the second ultraviolet detector.
6. The automatic flame detection device for the horizontal combustion test according to claim 1, wherein: the shell is provided with a switch and a display screen.
7. The automatic flame detection device for the horizontal combustion test according to claim 6, wherein: the display screen is a touch display screen.
8. The automatic flame detection device for the horizontal combustion test according to claim 6, wherein: the shell is provided with a heat dissipation port.
9. The automatic flame detection device for the horizontal combustion test according to claim 6, wherein: and a shell anchor is arranged below the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021464317.8U CN212622434U (en) | 2020-07-22 | 2020-07-22 | Automatic flame detection device for horizontal combustion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021464317.8U CN212622434U (en) | 2020-07-22 | 2020-07-22 | Automatic flame detection device for horizontal combustion test |
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| Publication Number | Publication Date |
|---|---|
| CN212622434U true CN212622434U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021464317.8U Active CN212622434U (en) | 2020-07-22 | 2020-07-22 | Automatic flame detection device for horizontal combustion test |
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| Country | Link |
|---|---|
| CN (1) | CN212622434U (en) |
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- 2020-07-22 CN CN202021464317.8U patent/CN212622434U/en active Active
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