Load test box

Abstract

The utility model discloses a load test box which comprises a box body, the box body is provided with an input end and three slots, the three slots are respectively provided with a detection meter, a timer and an output end, a limiting assembly is arranged below the slots, and the limiting assembly is used for locking the detection meter, the timer and the output end in the slots; according to the utility model, the load test box, the detection meter, the timer and the output end are all limited in the slot through the limiting assembly, so that when a single module breaks down, the damaged module can be singly dismounted and replaced, the operation is simple, and the maintenance is rapid and convenient.

Description

Technical Field

[0001] This utility model relates to load testing technology, specifically a load testing box. Background Technology

[0002] Load test boxes are mainly used to test the load capacity and performance of electrical equipment.

[0003] However, in existing test boxes, modules such as test instruments, output terminals, and timers are often directly integrated on the circuit board inside the test box. When a single module fails, personnel often need to disassemble the entire test box to repair it, which is a rather cumbersome process. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a load test box that can disassemble and assemble individual modules, is simple to operate, and allows for quick and convenient maintenance.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a load test box, including a box body, wherein the box body is provided with an input terminal and three slots, the three slots are respectively provided with a test meter, a timer and an output terminal, and a limiting component is provided below the slots, the limiting component being used to lock the test meter, the timer and the output terminal in the slots.

[0006] Preferably, the bottom of the detection meter, timer, and output terminal are all provided with card slots.

[0007] Preferably, the limiting component includes a limiting groove located below the slot. A fixed shaft is provided in the limiting groove. The fixed shaft is horizontally positioned and passes through the middle of the locking pin. A torsion spring is sleeved on the fixed shaft. The torsion spring is used to drive the pin to rotate so that the top of the pin is locked in the slot. A push rod passes through the front side wall of the limiting groove, and the end of the push rod abuts against the pin.

[0008] Preferably, the output terminal is provided with an output switch and a socket, and the output switch controls the power-on state of the socket.

[0009] Preferably, the detection table is a multi-functional table.

[0010] Preferably, the timer is a time relay.

[0011] Preferably, the front end of the detection meter, timer, and output terminal is provided with a groove.

[0012] Preferably, the housing is provided with a circuit board connected to the input terminal, the circuit board is provided with a terminal slot, and the end of the detector, timer and output terminal are all provided with wiring terminals that cooperate with the terminal slot.

[0013] In summary, this utility model achieves the following technical effects:

[0014] The load test box of this utility model has the test meter, timer and output terminal all limited in the slot by the limit component, so that when a single module fails, the damaged module can be disassembled and replaced individually. The operation is simple and the maintenance is quick and convenient. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the load test box of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the load test box of this utility model;

[0017] Instruction manual diagram markings: 1. Box body; 3. Input terminal; 4. Power switch; 5. Multifunction meter; 6. Timer; 7. Output terminal; 8. Output switch; 9. Socket; 10. Push rod; 11. Locking pin; 12. Wiring terminal. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] Example 1:

[0025] like Figure 1 As shown in Figure 2, a load test box includes a box body 1. The box body 1 is provided with an input terminal 3 and three slots. The three slots are respectively provided with a test meter, a timer 6 and an output terminal 7. A limiting component is provided below the slots. The limiting component is used to lock the test meter, the timer 6 and the output terminal 7 in the slots.

[0026] Input terminal 3 is connected to the power supply and to the circuit board via power switch 4. The circuit board is connected to the test meter, timer 6 and output terminal 7. Power switch 4 controls the circuit on / off of the entire test box. The test meter detects various data of the electrical equipment load. Timer 6 controls the electrical equipment load time. Output terminal 7 is connected to the electrical equipment to supply power.

[0027] In this embodiment, the load test box, the test meter, the timer 6, and the output terminal 7 are all limited in the slot by the limiting component, so that when a single module fails, the damaged module can be disassembled and replaced individually. The operation is simple and the maintenance is quick and convenient.

[0028] The bottom of the detection meter, timer 6, and output terminal 7 are all provided with slots; the limiting component includes a limiting groove, which is located below the slot. A fixed shaft is provided in the limiting groove. The fixed shaft is horizontally arranged and passes through the middle of the locking pin 11. A torsion spring is sleeved on the fixed shaft. The torsion spring is used to drive the pin to rotate so that the top of the pin is locked in the slot. A push rod 10 passes through the front side wall of the limiting groove, and the end of the push rod 10 abuts against the pin.

[0029] During disassembly, the worker only needs to push the push rod 10 inward, causing the bottom end of the pin to rotate, so that the top end of the pin disengages from the slot. At this time, the worker can remove the gauge, timer 6, or output terminal 7. During installation, the worker only needs to push the new gauge, timer 6, or output terminal 7 into the slot. After the gauge, timer 6, or output terminal 7 is in place, it is connected to the circuit board through the terminal 12. At the same time, the pin is pushed by the torsion spring and locked in the end of the slot, locking the gauge, timer 6, or output terminal 7. If necessary, a tightening bolt can be added to the front side wall of the limiting slot. The tightening bolt abuts the top of the pin to prevent the pin from rotating, thereby achieving the locking function and preventing the gauge, timer 6, or output terminal 7 from disengaging from the slot.

[0030] The output terminal 7 is equipped with an output switch 8 and a socket 9, and the output switch 8 controls the power supply status of the socket 9.

[0031] The measuring instrument is a multi-function meter 5. Also known as a multi-function power meter, the multi-function meter 5 can measure all commonly used electrical parameters in a three-phase power grid system with high precision: three-phase voltage, three-phase current, active power, reactive power, power factor, grid frequency, active energy, and reactive energy. It also features a communication interface and energy pulse output function.

[0032] The timer 6 is a time relay. A time relay is a type of relay whose output circuit only produces a jump change (or contact actuation) after a specified precise time has elapsed after an input signal is applied (or removed). It is an electrical component used in circuits with lower voltage or lower current to connect or disconnect circuits with higher voltage or higher current. In many control systems, time relays are needed to achieve time-delay control. A time relay is an automatic control electrical device that uses electromagnetic or mechanical principles to delay the closing or opening of contacts. Its characteristic is that there is a delay between the signal received by the coil and the contact actuation. Time relays are generally used for motor starting process control, where the process is a function of time.

[0033] The front end of the detection gauge, timer 6 and output terminal 7 is provided with a groove; the groove is provided so that when disassembling the detection gauge, timer 6 and output terminal 7, the worker's hand or tool can be inserted to facilitate the application of force and improve the disassembly efficiency.

[0034] The housing 1 contains a circuit board connected to the input terminal 3. The circuit board has a terminal slot. The end of the detector, timer 6 and output terminal 7 are all provided with wiring terminals 12 that cooperate with the terminal slot.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A load test box, characterized in that, The device includes a housing with an input terminal and three slots. The three slots respectively house a meter, a timer, and an output terminal. A limiting component is located below each slot to lock the meter, timer, and output terminal within the slot. Each meter, timer, and output terminal has a retaining groove at its bottom. The limiting component includes a limiting groove located below the slot. A fixed shaft is horizontally positioned within the limiting groove and passes through the center of a locking pin. A torsion spring is fitted onto the fixed shaft to rotate the pin, causing its top to engage in the retaining groove. A push rod passes through the front sidewall of the limiting groove, with its end abutting against the pin.

2. The load test box according to claim 1, characterized in that, The output terminal is equipped with an output switch and a socket, and the output switch controls the power-on state of the socket.

3. A load test box according to claim 1, characterized in that, The test table is a multi-functional table.

4. A load test box according to claim 1, characterized in that, The timer is a time relay.

5. A load test box according to claim 1, characterized in that, The front end of the detection meter, timer, and output terminal is provided with a groove.

6. A load test box according to claim 1, characterized in that, The box contains a circuit board connected to the input terminal. The circuit board has a terminal slot, and the end of the detector, timer, and output terminal are all provided with wiring terminals that cooperate with the terminal slot.

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