Safety circuit flash tester

Abstract

The utility model relates to a safety circuit flash-off tester, which comprises a shell, a detection structure and a clamping and fixing structure, the detection structure is arranged in the shell and is used for safety circuit fault detection, and the clamping and fixing structure is arranged on the shell and is used for fixing the shell. In actual use, the photosensitive diode of the tester is aligned with the safety circuit indicator light of the IFU, the tester counts once every time the safety circuit is established, and the counting result is displayed on the nixie tube in real time. Maintenance personnel find out fault points by comparing counts on nixie tubes of all the testers, and therefore processing of safety circuit faults is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety circuit flash testers, in particular to a safety circuit flash tester. Background Art

[0002] When the safety circuit of the existing platform door system fails, the software background can only report the alarm of the entire safety circuit, but cannot report the specific fault point. The existing problems and impacts are:

[0003] 1. It is difficult to troubleshoot the fault, and a large number of personnel can only be arranged on site to check the door IFU one by one;

[0004] 2. The repair time is too long. When encountering a safety circuit fault with a low alarm frequency, it often takes several months or even impossible to find the fault point;

[0005] 3. It will seriously affect the driving efficiency, causing trains to be unable to enter and exit the station, emergency stops, etc., resulting in train delays. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects in the prior art and provide a safety circuit flash tester, which can overcome the difficulty of on-site troubleshooting of safety circuit faults.

[0007] A safety circuit flash tester comprises a housing, a detection structure and a clamping and fixing structure, wherein the detection structure is installed in the housing and used for safety circuit fault detection, and the clamping and fixing structure is installed on the housing and used for fixing the housing;

[0008] The clamping and fixing structure includes a mounting block, a clamping block, a first limiting plate and a fixing block, the top of the mounting block is connected to the rear end edge of the top of the shell through the first limiting plate, the clamping block is arranged between the mounting block and the shell, the clamping block is provided with a limiting hole, the clamping block is sleeved on the first limiting plate through the limiting hole, and the clamping block can move along the first limiting plate through the limiting hole, the clamping block is provided with a plug-in block on the end face of one side of the clamping block close to the shell, the fixing block is provided with a plug-in groove matched with the plug-in block, and the fixing block is installed between the clamping block and the shell through the plug-in groove and the plug-in block to fix the distance between the clamping block and the mounting block.

[0009] Furthermore, it also includes a top column, which is installed on the top of the fixed block.

[0010] Furthermore, it also includes a second limiting plate, wherein two second limiting plates are symmetrically arranged on both sides of the first limiting plate and installed between the mounting block and the shell.

[0011] Furthermore, the detection structure includes a detection element, a counting circuit, a display element and a power supply, the detection element is connected to the counting circuit, the counting circuit is connected to the display element, and the power supply is electrically connected to the detection element, the counting circuit and the display element.

[0012] Furthermore, the detection element is a photodiode.

[0013] Furthermore, the counting circuit uses a PIC microcontroller for counting.

[0014] Furthermore, the display element adopts a digital tube.

[0015] Furthermore, the power source is a button battery.

[0016] Furthermore, it also includes a battery switch, which is connected to the power supply and is used to control the power supply to be turned on or off.

[0017] Furthermore, it also includes a count reset button, and the count reset button is connected to the counting circuit.

[0018] The advantages and beneficial effects of the utility model are:

[0019] (1) IFU safety circuit faults have the problem of being unable to monitor specific alarm points and being difficult to troubleshoot. By monitoring the flashing of the IFU "lock" light and counting it, and comparing the counts of different door bodies, the faulty IFU can be found, thus improving the efficiency of fault handling. According to the actual use effect, it can solve the previously unrepairable low alarm frequency fault of the safety circuit, save troubleshooting and processing time, reduce the occurrence of driving incidents, and improve the efficiency of subway operation.

[0020] (2) In actual use, align the photosensitive diode of the tester with the safety circuit indicator light of the IFU. Each time the safety circuit is established, the tester will count once and display the counting result on the digital tube in real time. The maintenance personnel can find the fault point by comparing the counts on each digital tube of the tester, thereby completing the processing of the safety circuit fault.

[0021] (3) The tester is small and portable and can be directly installed on the top of the IFU without affecting the operation organization and passenger service. When dealing with IFU failures, it can directly save 6-8 manpower and save about 20 hours of fault handling time each time. It reduces the number of events that affect driving. Due to the reduction in handling time, the probability of affecting driving is reduced, and about 7 train delays are reduced each year. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a safety circuit flash tester provided by the utility model;

[0023] Figure 2 A schematic diagram of the disassembled structure of a safety circuit flash tester provided by the utility model;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure from another angle;

[0025] Figure 4 This is an implementation principle diagram of a safety circuit flash tester of the utility model;

[0026] Description of reference numerals:

[0027] Shell 1, mounting block 2, clamping block 3, first limit plate 4, fixing block 5, limit hole 6, plug-in block 7, plug-in slot 8, top column 9, second limit plate 10, detection element 11, counting circuit 12, display element 13, power supply 14, battery switch 15, count reset button 16. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1-4 As shown, a safety circuit flash tester includes a housing 1, a detection structure and a clamping and fixing structure. The detection structure is installed in the housing 1 and is used for safety circuit fault detection. The clamping and fixing structure is installed on the housing 1 and is used for fixing the housing 1.

[0031] The clamping and fixing structure includes a mounting block 2, a clamping block 3, a first limiting plate 4 and a fixing block 5. The top of the mounting block 2 is connected to the rear end edge of the top of the shell 1 through the first limiting plate 4. The clamping block 3 is arranged between the mounting block 2 and the shell 1. The clamping block 3 is provided with a limiting hole 6. The clamping block 3 is sleeved on the first limiting plate 4 through the limiting hole 6, and the clamping block 3 can move along the first limiting plate 4 through the limiting hole 6. A plug-in block 7 is provided on the end face of the clamping block 3 close to the shell 1. A plug-in groove 8 matched with the plug-in block 7 is provided on the fixing block 5. The fixing block 5 is installed between the clamping block 3 and the shell 1 through the plug-in groove 8 and the plug-in block 7, so as to fix the distance between the clamping block 3 and the mounting block 2.

[0032] In the above technical solution, the tester is suspended and installed on the hanging plate by means of the mounting block and the first limit plate, and the plug-in slot on the fixing block is inserted into the plug-in block, thereby moving the clamping block toward the mounting block, thereby clamping and fixing the hanging plate between the clamping block and the mounting block, thereby completing the suspension and fixation of the tester.

[0033] As a preferred embodiment of the above technical solution, it further includes a top column 9, which is installed on the top of the fixing block 5. The provision of the top column can facilitate the insertion or removal of the fixing block.

[0034] As a preferred embodiment of the above technical solution, it also includes a second limit plate 10, two of which are symmetrically arranged on both sides of the first limit plate 4 and installed between the mounting block 2 and the housing 1, and the second limit plate passes through the clamping block, and the clamping block can move along the second limit plate. Both the first limit plate and the second limit plate play a role of limit guide.

[0035] As a preferred embodiment of the above technical solution, the detection structure includes a detection element 11, a counting circuit 12, a display element 13 and a power supply 14, the detection element 11 is connected to the counting circuit 12, the counting circuit 12 is connected to the display element 13, and the power supply 14 is electrically connected to the detection element 11, the counting circuit 12 and the display element 13.

[0036] In actual use, the photosensitive diode of the tester is aligned with the safety circuit indicator light of the IFU. Each time the safety circuit is established, the tester will count once and display the counting result on the digital tube in real time. The maintenance personnel can find the fault point by comparing the counts on each digital tube of the tester, thus completing the processing of the safety circuit fault.

[0037] As a preferred embodiment of the above technical solution, the detection element 11 is a photodiode.

[0038] As a preferred embodiment of the above technical solution, the counting circuit 12 uses a PIC microcontroller for counting.

[0039] As a preferred embodiment of the above technical solution, the display element 13 is a digital tube.

[0040] As a preferred embodiment of the above technical solution, the power source 14 is a button battery.

[0041] As a preferred embodiment of the above technical solution, it also includes a battery switch 15, which is connected to the power supply 14 and is used to control the power supply to be turned on or off.

[0042] As a preferred embodiment of the above technical solution, it also includes a count reset button 16 , and the count reset button 16 is connected to the counting circuit 12 .

[0043] The working principle of the utility model is as follows:

[0044] In actual use, the photosensitive diode of the tester is aligned with the safety circuit indicator light of the IFU. Each time the safety circuit is established, the tester will count once and display the counting result on the digital tube in real time. The maintenance personnel can find the fault point by comparing the counts on each digital tube of the tester, thus completing the processing of the safety circuit fault.

[0045] The tester is small and portable and can be directly installed on the IFU without affecting the traffic organization and passenger service. When dealing with IFU failures, it can directly save 6-8 manpower and save about 20 hours of troubleshooting time each time. It reduces the number of events that affect traffic. Due to the reduction in handling time, the probability of affecting traffic is reduced, and about 7 train delays are reduced each year.

[0046] IFU safety circuit failures cannot monitor specific alarm points and are difficult to troubleshoot. By monitoring and counting the flashing of the IFU "lock" light and comparing the counts of different door bodies, the faulty IFU can be found, thus improving fault handling efficiency.

[0047] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A safety circuit flash tester, characterized in that: It comprises a housing (1), a detection structure and a clamping and fixing structure, wherein the detection structure is installed in the housing (1) and is used for safety circuit fault detection, and the clamping and fixing structure is installed on the housing (1) and is used for fixing the housing (1); The clamping and fixing structure comprises a mounting block (2), a clamping block (3), a first limiting plate (4) and a fixing block (5); the top of the mounting block (2) is connected to the rear end edge of the top of the shell (1) through the first limiting plate (4); the clamping block (3) is arranged between the mounting block (2) and the shell (1); a limiting hole (6) is provided on the clamping block (3); the clamping block (3) is sleeved on the first limiting plate (4) through the limiting hole (6); and the clamping block (3) can move along the first limiting plate (4) through the limiting hole (6); a plug-in block (7) is provided on the end surface of the clamping block (3) close to the shell (1); a plug-in slot (8) matched with the plug-in block (7) is provided on the fixing block (5); the fixing block (5) is installed between the clamping block (3) and the shell (1) through the plug-in slot (8) and the plug-in block (7) so as to fix the distance between the clamping block (3) and the mounting block (2).

2. A safety circuit flash tester according to claim 1, characterized in that: It also includes a top column (9), which is installed on the top of the fixed block (5).

3. A safety circuit flash tester according to claim 1, characterized in that: It also includes a second limiting plate (10), wherein two of the second limiting plates (10) are symmetrically arranged on both sides of the first limiting plate (4) and are installed between the installation block (2) and the shell (1).

4. A safety circuit flash tester according to claim 1, characterized in that: The detection structure comprises a detection element (11), a counting circuit (12), a display element (13) and a power supply (14); the detection element (11) is connected to the counting circuit (12), the counting circuit (12) is connected to the display element (13), and the power supply (14) is electrically connected to the detection element (11), the counting circuit (12) and the display element (13).

5. A safety circuit flash tester according to claim 4, characterized in that: The detection element (11) is a photosensitive diode.

6. A safety circuit flash tester according to claim 4, characterized in that: The counting circuit (12) uses a PIC single chip microcomputer to perform counting.

7. A safety circuit flash tester according to claim 4, characterized in that: The display element (13) is a digital tube.

8. A safety circuit flash tester according to claim 4, characterized in that: The power source (14) is a button battery.

9. A safety circuit flash tester according to claim 4, characterized in that: It also includes a battery switch (15), which is connected to the power source (14) and is used to control the power source to be turned on or off.

10. A safety circuit flash tester according to claim 4, characterized in that: It also includes a count reset button (16), and the count reset button (16) is connected to the counting circuit (12).

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