Military power van in-situ guarantee device

Abstract

The utility model provides an in-situ guarantee device for a military power van, and relates to the field of military equipment. Comprising a junction box, the junction box is provided with a digital display resistance tester, a metering plug hole and a guarantee circuit, the guarantee circuit comprises a two-in six-out wiring terminal, a function switch, a maintenance switch and a metering switch, and the input end of the two-in six-out wiring terminal is connected with the positive electrode and the negative electrode of a power supply vehicle meter head respectively; the three output ends of the two-in six-out wiring terminal are respectively connected with the input ends of the function switch, the maintenance switch and the metering switch; the output end of the function switch is connected with a power van original line, the output end of the maintenance switch is connected with the digital display resistance tester, and the output end of the metering switch is connected with the metering plug hole. According to the invention, by innovating an adaptive line, eliminating an off-position guarantee mode and implementing an in-situ guarantee mode, manual operation of frequent disassembly and installation can be avoided, the workload is greatly reduced, and the maintenance time is shortened.

Description

Technical Field

[0001] The utility model relates to the field of military equipment, in particular to an in-situ guarantee device for a military power supply vehicle. Background Art

[0002] As an important equipment to ensure the combat effectiveness of military aircraft, the military aircraft power supply vehicle plays an important role. The technical support work of the military aircraft power supply vehicle consists of two parts: daily technical maintenance and daily maintenance, and annual metrological periodic calibration.

[0003] At present, the problems existing in the technical support work of military aircraft power supply vehicles are: first, the frequent disassembly and installation of voltmeters, ammeters and frequency meters consumes a lot of manpower; second, the frequent disassembly and installation of voltmeters, ammeters and frequency meters are easy to cause damage, and there are safety hazards such as wrong connection and false connection; third, a military power supply vehicle has a total of 7 voltmeters, ammeters and frequency meters, and the disassembly and installation time is about 30 minutes, which seriously restricts the efficiency of the technical support work of the power supply vehicle and affects the good equipment in place rate. Utility Model Content

[0004] The utility model aims to provide an in-situ protection device for a military power supply vehicle, which can implement in-situ protection for the power supply vehicle, avoid frequent manual operations of disassembly and installation, greatly reduce workload, and reduce maintenance time.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A military power supply vehicle on-site protection device comprises a junction box, wherein the junction box is provided with a digital resistance tester, a metering socket and a protection circuit, wherein the protection circuit comprises a two-input and six-output terminal, a function switch, a maintenance switch and a metering switch, wherein the input ends of the two-input and six-output terminal are respectively connected to the positive and negative poles of a meter head of the power supply vehicle, and the three-way output ends of the two-input and six-output terminal are respectively connected to the input ends of the function switch, the maintenance switch and the metering switch; the output end of the function switch is connected to the original circuit of the power supply vehicle, the output end of the maintenance switch is connected to the digital resistance tester, and the output end of the metering switch is connected to the metering socket.

[0007] Furthermore, in the present invention, the two-input and six-output terminal blocks include a control switch 1, a control switch 2 and a control switch 3, and the control switch 1, the control switch 2 and the control switch 3, as well as the function switch, the maintenance switch and the metering switch respectively include two linkage switches; the control switch 1, the control switch 2 and the control switch 3, as well as the function switch, the maintenance switch and the metering switch respectively include a positive input terminal and a negative input terminal, and the positive pole of the power supply vehicle meter head is respectively connected to the positive input terminal of the control switch 1, the positive input terminal of the control switch 2 and the positive input terminal of the control switch 3, and the negative pole of the power supply vehicle meter head is respectively connected to the positive input terminal of the control switch 1, the positive input terminal of the control switch 2 and the positive input terminal of the control switch 3. The negative input terminal of the control switch one, the negative input terminal of the control switch two and the negative input terminal of the control switch three are connected; the control switch one, the control switch two and the control switch three as well as the function switch, the maintenance switch and the metering switch respectively include a positive output terminal and a negative output terminal, the positive output terminal and the negative output terminal of the control switch one are respectively connected to the positive input terminal and the negative input terminal of the function switch, the positive output terminal and the negative output terminal of the control switch two are respectively connected to the positive input terminal and the negative input terminal of the maintenance switch, and the positive output terminal and the negative output terminal of the control switch three are respectively connected to the positive input terminal and the negative input terminal of the metering switch.

[0008] Furthermore, in the utility model, the junction box is also provided with a resistance test button, and the resistance test button is connected between the maintenance switch and the digital resistance tester.

[0009] Furthermore, in the present invention, the digital resistance tester is embedded in the junction box, and the display screen of the digital resistance tester faces the front panel of the junction box.

[0010] Furthermore, in the utility model, the function switch, the maintenance switch and the metering switch are arranged side by side in the junction box and located above the digital resistance tester, and the front panel of the junction box is provided with gear position markings corresponding to the function switch, the maintenance switch and the metering switch respectively.

[0011] Furthermore, in the present utility model, the metering socket and the resistance test button are arranged on the front panel of the junction box and are located on one side of the gear position mark.

[0012] Furthermore, in the present invention, the material of the junction box shell is nylon.

[0013] Furthermore, in the present utility model, the plug hole size of the metering plug hole is 4 mm.

[0014] The utility model has at least the following advantages or beneficial effects:

[0015] The utility model forms a three-way switch circuit by arranging two-input and six-output wiring terminals, a function switch, a maintenance switch and a metering switch. The separate wiring mode of the three-way switch circuit enables it to work independently; by setting the function switch to a normally closed state, it can be used for daily work of the power supply vehicle; the maintenance switch circuit is used for daily technical maintenance, the maintenance switch is connected to a digital resistance tester, by closing the maintenance switch, disconnecting the function switch and the metering switch, the resistance of the power supply vehicle can be tested by the digital resistance tester to determine whether its state is abnormal; the metering switch circuit is used for annual metrological verification, the metering switch is connected to a metering socket, when verification is required, the metering verification equipment is connected through the metering socket, the metering switch is closed, the function switch and the maintenance switch are disconnected, and the technical state of the meter can be accurately determined by the metrological standard. This application, through innovative adaptation lines and elimination of off-site support methods, implements an on-site support mode, which can avoid frequent manual operations of disassembly and installation, greatly reduce workload, reduce maintenance time, and eliminate safety hazards such as power line short circuit and false connection caused by misoperation during operation. It meets the military needs of modern equipment for "fast", "accurate" and "precise" technical support, and can further improve the technical level of equipment technical support. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the front panel of the in-situ support device for a military power supply vehicle provided in an embodiment of the present application;

[0018] Figure 2 This is a circuit diagram of the in-situ support device for a military power supply vehicle provided in an embodiment of the present application.

[0019] Icons: 1-junction box, 2-digital resistance tester, 3-metering socket, 4-power supply vehicle meter head, 5-power supply vehicle original line, 6-two-input and six-output terminal blocks, K1-function switch, K2-maintenance switch, K3-metering switch, K4-resistance test button, K5-control switch one, K6-control switch two, K7-control switch three. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example

[0023] Please refer to Figure 1-Figure 2 , which is a schematic diagram of the structure of the in-situ security device for a military power supply vehicle in an embodiment of the utility model;

[0024] The present embodiment provides an on-site protection device for a military power supply vehicle, comprising a junction box 1, wherein the junction box 1 is provided with a digital resistance tester 2, a metering socket 3 and a protection circuit, wherein the protection circuit comprises a two-input and six-output terminal block 6, a function switch K1, a maintenance switch K2 and a metering switch K3, wherein the input ends of the two-input and six-output terminal block 6 are respectively connected to the positive and negative poles of a meter head 4 of the power supply vehicle, and the three output ends of the two-input and six-output terminal block 6 are respectively connected to the input ends of the function switch K1, the maintenance switch K2 and the metering switch K3; the output end of the function switch K1 is connected to the original line 5 of the power supply vehicle, the output end of the maintenance switch K2 is connected to the digital resistance tester 2, and the output end of the metering switch K3 is connected to the metering socket 3.

[0025] Next, the in-situ support device for the military power supply vehicle of this exemplary embodiment will be further described.

[0026] In some embodiments of the present application, the above-mentioned junction box 1 is provided with a digital resistance tester 2, a metering socket 3 and a protection circuit, the protection circuit includes a two-input and six-output terminal block 6, a function switch K1, a maintenance switch K2 and a metering switch K3, the input ends of the two-input and six-output terminal block 6 are respectively connected to the positive and negative poles of the power supply vehicle meter head 4, and the three output ends of the two-input and six-output terminal block 6 are respectively connected to the input ends of the function switch K1, the maintenance switch K2 and the metering switch K3; the output end of the function switch K1 is connected to the original line 5 of the power supply vehicle, the output end of the maintenance switch K2 is connected to the digital resistance tester 2, the digital resistance tester 2 is used to detect the resistance value, the output end of the metering switch K3 is connected to the metering socket 3, the metering socket 3 is used to connect the metering calibration equipment, and perform regular metering calibration on the power supply vehicle.

[0027] In actual use, the junction box 1 is fixed behind the voltmeter, ammeter, and frequency meter. Specifically, a buckle can be set on the junction box 1, and it can be connected to the voltmeter, ammeter, and frequency meter by the buckle. It can also be connected by other detachable connection methods to facilitate disassembly and assembly when necessary. By using a two-input and six-output terminal 6, the positive and negative ends connected to the voltmeter, ammeter, and frequency meter are divided into three branch lines. Each of the three branch lines uses a two-input and two-output quick wiring terminal, that is, the function switch K1, the maintenance switch K2, and the metering switch K3 are connected respectively. By controlling the closing and opening of the function switch K1, the maintenance switch K2, and the metering switch K3, different functions are implemented.

[0028] As a preferred implementation, the function switch K1 is normally closed, and the maintenance switch K2 and the metering switch K3 are normally open; during routine maintenance, the maintenance switch K2 is closed, and the function switch K1 and the metering switch K3 are open; during metering verification, the metering switch K3 is closed, and the function switch K1 and the maintenance switch K2 are open. When the function switch K1 is closed, it is used for normal operation of the power supply vehicle; when the maintenance switch K2 is closed, it is used for routine technical maintenance and daily maintenance, usually once a week, which can quickly meet routine security needs; when the metering switch K3 is closed, it is used for metering period verification at least once a year, which can accurately determine whether the technical status of the voltmeter, ammeter, and frequency meter is good.

[0029] As a preferred embodiment, the junction box 1 is further provided with a resistance test button K4, which is connected between the maintenance switch K2 and the digital resistance tester 2. The resistance test button K4 is used to control the opening and closing of the digital resistance tester 2, and to turn on or off the resistance test.

[0030] Reference Figure 2The above-mentioned two-input and six-output terminal blocks include a control switch K5, a control switch K6 and a control switch K7. The above-mentioned control switch K5, the control switch K6 and the control switch K7, as well as the function switch K1, the maintenance switch K2, the metering switch K3 and the resistance test button K4 each include two linkage switches; the positive input terminal and the negative input terminal of the two linkage switches of the control switch K5 are respectively connected to the positive and negative poles of the meter head 4 of the power supply vehicle, and the positive output terminal and the negative output terminal thereof are respectively connected to the positive input terminal and the negative input terminal of the two linkage switches of the function switch K1, and the positive output terminal and the negative output terminal of the two linkage switches of the function switch K1 are respectively connected to the positive input terminal and the negative input terminal of the original line of the power supply vehicle; similarly, the positive input terminal and the negative input terminal of the two linkage switches of the control switch K6 are respectively connected to the positive input terminal and the negative input terminal of the original line of the power supply vehicle; They are respectively connected to the positive and negative poles of the power supply vehicle meter head, and their positive output and negative output ends are respectively connected to the positive input and negative input ends of the two linkage switches of the maintenance switch K2, and the positive output and negative output ends of the maintenance switch K2 are respectively connected to the positive input and negative input ends of the resistance test button K4, and the positive output and negative output ends of the resistance test button K4 are respectively connected to the positive input and negative input ends of the digital resistance tester 2; similarly, the positive input and negative input ends of the two linkage switches of the control switch three K7 are respectively connected to the positive and negative poles of the power supply vehicle meter head, and their positive output and negative output ends are respectively connected to the positive input and negative input ends of the two linkage switches of the metering switch K3, and the positive output and negative output ends of the two linkage switches of the metering switch K3 are respectively connected to the positive input and negative input ends of the metering socket 3.

[0031] In a specific embodiment, when the power supply vehicle is in normal use, the above-mentioned function switch K1 is closed, and the maintenance switch K2 and the metering switch K3 are disconnected. When technical maintenance is required, the above-mentioned maintenance switch K2 is kept closed, and the function switch K1 and the metering switch K3 are kept disconnected. The maintenance technician operates and presses the resistance test button K4 for more than 5 seconds. The liquid crystal resistor of the digital resistance tester 2 displays the resistance. When the displayed resistance is greater than 20Ω, it is preliminarily judged that the meter is in an abnormal state, and it should be stopped immediately, and the military metrology technical organization should be contacted in time to determine whether its technical status is good through metrological verification; when the displayed resistance is less than or equal to 20Ω, the meter functions normally and is in good technical status. It should be noted that the internal resistance of the meter head 4 of the power supply vehicle is generally not greater than 5Ω. When it is higher than 20Ω, it is basically determined that the meter head is faulty. When metrological verification is required, connect the metrological verification equipment to the metering socket 3, keep the above-mentioned metering switch K3 closed, and keep the function switch K1 and the maintenance switch K2 open. Use the metrological standards to accurately judge whether the technical status of the meter is good, and paste the corresponding metrological mark. Specifically, if the metrological verification fails, paste a red deactivation mark and stop using it. If the metrological verification passes, paste a green qualified mark, indicating that it can continue to be used, generally within the next year.

[0032] As a preferred embodiment, the digital resistance tester 2 is embedded in the junction box 1, and the display screen of the digital resistance tester 2 faces the front panel of the junction box 1. The function switch K1, maintenance switch K2 and metering switch K3 are arranged side by side in the junction box 1 and are located above the digital resistance tester 2, and the front panel of the junction box 1 is provided with gear marks corresponding to the function switch K1, maintenance switch K2 and metering switch K3, respectively, corresponding to the function gear, maintenance gear and metering gear. The metering socket 3 and resistance test button K4 are provided on the front panel of the junction box 1 and are located on one side of the gear mark. Through the above-mentioned arrangement design, the panel of the junction box 1 can be made neat and beautiful, easy to operate and observe, and convenient for the arrangement of the connecting wires inside the junction box 1.

[0033] In a specific embodiment, the connecting wire adopts 2.5 square soft wire, which is convenient for wiring arrangement. The plug size of the metering socket 3 is 4mm. The two-input and six-output terminal blocks 6 are made of international quick-connect terminals, which are flame-retardant and have firm wiring. The shell material of the junction box 1 is PA66 nylon, with a withstand voltage of 4000V, which is safe and reliable. The digital resistance tester 2 adopts FY51405 digital ohmmeter, powered by DC24V-27V, with a range of 1kΩ, high sensitivity and accurate testing.

[0034] This application aims at the actual technical support work of military power supply vehicles. Without affecting the normal functions, two designs are added. One is to add a maintenance file for routine technical maintenance and daily care, which can quickly complete the routine support needs. The other is to add a metering file, which can accurately judge whether the technical status of the voltage meter, current meter, and frequency meter is good. By innovating the adaptation line, eliminating the "low-end" method of off-site support, and implementing the on-site support mode, frequent manual operations of disassembly and installation can be avoided, which greatly reduces the workload and maintenance time, and eliminates safety hazards such as short circuit and virtual connection of the power line caused by misoperation during operation. It meets the military needs of modern equipment for "fast", "accurate" and "precise" technical support, and can further improve the technical level of equipment technical support.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An in-situ support device for a military power supply vehicle, characterized in that: It includes a junction box, which is provided with a digital resistance tester, a metering socket and a protection circuit. The protection circuit includes a two-input and six-output terminal, a function switch, a maintenance switch and a metering switch. The input ends of the two-input and six-output terminal are respectively connected to the positive and negative poles of the meter head of the power supply vehicle, and the three output ends of the two-input and six-output terminal are respectively connected to the input ends of the function switch, the maintenance switch and the metering switch; the output end of the function switch is connected to the original line of the power supply vehicle, the output end of the maintenance switch is connected to the digital resistance tester, and the output end of the metering switch is connected to the metering socket.

2. The in-situ support device for a military power supply vehicle according to claim 1 is characterized in that: The two-input and six-output terminal blocks include a control switch 1, a control switch 2 and a control switch 3, and the control switch 1, the control switch 2 and the control switch 3, as well as the function switch, the maintenance switch and the metering switch respectively include two linkage switches; the control switch 1, the control switch 2 and the control switch 3, as well as the function switch, the maintenance switch and the metering switch respectively include a positive input terminal and a negative input terminal, and the positive pole of the power supply vehicle meter head is respectively connected to the positive input terminal of the control switch 1, the positive input terminal of the control switch 2 and the positive input terminal of the control switch 3, and the negative pole of the power supply vehicle meter head is respectively connected to the positive input terminal of the control switch 1. The positive output terminal and the negative output terminal of the control switch 1 are connected to the positive input terminal and the negative input terminal of the control switch 2, the negative input terminal of the control switch 2 and the negative input terminal of the control switch 3; the control switch 1, the control switch 2 and the control switch 3 as well as the function switch, the maintenance switch and the metering switch respectively include a positive output terminal and a negative output terminal, the positive output terminal and the negative output terminal of the control switch 1 are respectively connected to the positive input terminal and the negative input terminal of the function switch, the positive output terminal and the negative output terminal of the control switch 2 are respectively connected to the positive input terminal and the negative input terminal of the maintenance switch, and the positive output terminal and the negative output terminal of the control switch 3 are respectively connected to the positive input terminal and the negative input terminal of the metering switch.

3. The in-situ support device for a military power supply vehicle according to claim 1 is characterized in that: The junction box is also provided with a resistance test button, and the resistance test button is connected between the maintenance switch and the digital resistance tester.

4. The in-situ support device for a military power supply vehicle according to claim 3 is characterized in that: The digital resistance tester is embedded in the junction box, and the display screen of the digital resistance tester faces the front panel of the junction box.

5. The in-situ support device for a military power supply vehicle according to claim 4 is characterized in that: The function switch, the maintenance switch and the metering switch are arranged in parallel in the junction box and are located above the digital resistance tester, and the front panel of the junction box is provided with gear marks corresponding to the function switch, the maintenance switch and the metering switch respectively.

6. The in-situ support device for a military power supply vehicle according to claim 5, characterized in that: The metering socket and the resistance test button are arranged on the front panel of the junction box and are located on one side of the gear position mark.

7. The in-situ support device for a military power supply vehicle according to claim 1 is characterized in that: The material of the junction box shell is nylon.

8. The in-situ support device for a military power supply vehicle according to claim 1, characterized in that: The plug hole size of the metering plug hole is 4mm.

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