A load tester that facilitates the replacement of resistance wires

Abstract

This utility model discloses a load tester for easy replacement of resistance wires, including a base plate. The top of the base plate has a component control chamber and a resistor assembly chamber. The component control chamber houses control instruments. The resistor assembly chamber has a mounting base, and a connecting frame is mounted on the top of the mounting base. Multiple sets of resistance wires are arranged between the connecting frames. Multiple sets of first rotating wheels are movably mounted on both sides of the mounting base, and multiple sets of connecting plates are fixedly mounted on the front end of the mounting base. This utility model compensates for height differences through the engaging mechanism of the movable rod and the connecting block, as well as the secure connection of the nut and the second bolt. Users can easily and stably move the mounting base and its connecting frames when replacing resistance wires. This design not only simplifies the operation steps for replacing resistance wires but also greatly improves the convenience and efficiency of operation.

Description

Technical Field

[0001] This utility model relates to the field of load tester technology, specifically a load tester that facilitates the replacement of resistance wires. Background Technology

[0002] In telecommunications, power, aviation, banking, and large industrial and mining enterprises, high-power UPS, inverters, and diesel generator sets are commonly used. To ensure the safe operation of these power supplies, reliable testing methods are needed to monitor the circuit load. A load tester is precisely such a crucial tool for evaluating the performance and stability of power equipment under different load conditions.

[0003] In existing load tester designs, such as the load tester described in application number 20221766163.7, although it includes key components such as a base plate, casters, a combination frame, a resistor assembly chamber, and a resistor mounting base, and realizes the installation of resistance wires and the configuration of cooling fans, it still has some limitations in actual use, especially in terms of resistance wire replacement.

[0004] Specifically, in existing technologies, resistor mounting bases are typically fixedly connected to a frame on a base plate, forming a resistor assembly chamber. The resistance wire is then mounted on the inner wall of the resistor mounting base. However, due to the height difference between the mounting base and the base plate—a stepped structure—the rotating wheel does not easily contact the ground when moving the mounting base to replace the resistance wire, thus increasing the difficulty of replacing the resistance wire. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In view of this, the purpose of this utility model is to provide a load tester that facilitates the replacement of resistance wires, thereby solving the problems mentioned in the background.

[0007] (II) Technical Solution

[0008] A load tester for easy replacement of resistance wires includes a base plate. The top of the base plate has a component control chamber and a resistor assembly chamber. The component control chamber contains control instruments. The resistor assembly chamber has a mounting base, and a connecting frame is mounted on the top of the mounting base. Multiple sets of resistance wires are arranged between the connecting frames. Multiple sets of first rotating wheels are movably mounted on both sides of the mounting base, and multiple sets of connecting plates are fixedly mounted on the front end of the mounting base. A movable rod is movably mounted between the multiple sets of connecting plates, and a second rotating wheel is movably mounted at the bottom end of the movable rod.

[0009] Preferably, a fixing plate is fixedly installed at one end of the mounting base, and the fixing plate is fixedly connected to the base plate by multiple sets of first bolts.

[0010] Preferably, a connecting block is fixedly installed on one side of both the mounting base and the connecting bracket, and a slot is provided at one end of the connecting block, with a screw hole provided in the slot.

[0011] Preferably, the outer surface of the movable rod is provided with a screw hole, and it is connected to the movable rod by a nut and a second bolt.

[0012] Preferably, grooves are provided on both sides of the connecting frame.

[0013] Preferably, a limiting plate is installed on the top outer surface of the base plate.

[0014] Preferably, the inner wall of the groove is wrapped with rubber.

[0015] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0016] 1. This utility model compensates for height differences through the engaging mechanism of the movable rod and the connecting block, as well as the secure connection of the nut and the second bolt. This allows users to easily and stably move the mounting base and its connecting bracket when replacing the resistance wire. This design not only simplifies the operation of replacing the resistance wire but also greatly improves the convenience and efficiency of the operation. Users do not need to spend excessive time and effort disassembling and reinstalling complex fixing structures; they can simply loosen the bolts, rotate the movable rod, and engage it to move the mounting base. This not only saves time but also reduces the difficulty of operation, enabling users to complete the replacement of the resistance wire more quickly and accurately.

[0017] 2. This utility model further enhances the stability and safety of the resistance wire replacement process through auxiliary devices such as the first rotating wheel and the limiting plate. The rotating wheel reduces friction between the mounting base and the base plate, making the movement smoother and more stable, avoiding increased resistance or damage to the tester structure due to excessive friction. Simultaneously, the limiting plate ensures that the mounting base remains on the correct track during movement, preventing deviation or unexpected situations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0023] In the diagram: 1. Base plate; 2. Component control room; 3. Control instrument; 4. Resistor assembly room; 5. Mounting base; 6. Connecting frame; 7. Resistance wire; 8. Groove; 911. Fixing plate; 912. First bolt; 811. First rotating wheel; 812. Limiting plate; 711. Connecting plate; 712. Movable rod; 713. Second rotating wheel; 714. Connecting block; 715. Second bolt. Detailed Implementation

[0024] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0025] Please see Figure 1-5 One embodiment provided by this utility model:

[0026] A load tester for easy replacement of resistance wires includes a base plate 1. The top of the base plate 1 is provided with a component control chamber 2 and a resistor assembly chamber 4. The component control chamber 2 is provided with a control instrument 3. The resistor assembly chamber 4 is provided with a mounting base 5, and a connecting frame 6 is installed on the top of the mounting base 5. Multiple sets of resistance wires 7 are arranged between the connecting frames 6. Multiple sets of first rotating wheels 811 are movably installed on both sides of the mounting base 5. Multiple sets of connecting plates 711 are fixedly installed on the front end of the mounting base 5. A movable rod 712 is movably installed between the multiple sets of connecting plates 711, and a second rotating wheel 713 is movably installed at the bottom end of the movable rod 712.

[0027] Furthermore, a fixing plate 911 is fixedly installed at one end of the mounting base 5, and the fixing plate 911 is fixedly connected to the base plate 1 by multiple sets of first bolts 912. The fixed connection ensures the stability and safety of the tester during operation.

[0028] Furthermore, a connecting block 714 is fixedly installed on one side of both the mounting base 5 and the connecting bracket 6, and a slot is provided at one end of the connecting block 714. A screw hole is provided in the slot. The design of the slot and the screw hole allows the user to securely lock the movable rod 712 in the required position with a nut and a second bolt 715, thereby improving the structural stability and ease of operation of the tester.

[0029] Furthermore, the outer surface of the movable rod 712 is provided with a screw hole, and it is connected to the movable rod 712 by a nut and a second bolt 715. The screw hole design on the outer surface of the movable rod 712 allows users to connect it to the connecting block 714 by using a nut and a second bolt 715, which can ensure the stability and safety of the movable rod 712 during the operation of the testing instrument.

[0030] Furthermore, pull grooves 8 are provided on both sides of the connecting frame 6. The pull grooves 8 make it easier for users to grab and pull the connecting frame 6, thereby simplifying the process of replacing the resistance wire.

[0031] Furthermore, a limiting plate 812 is installed on the top outer surface of the base plate 1. The limiting plate 812 is installed on the top outer surface of the base plate 1 to limit the position of the mounting base 5 and the connecting frame 6 during movement, so as to prevent them from deviating from the track or causing accidents.

[0032] Furthermore, the inner wall of the pull groove 8 is wrapped with rubber. The advantage of the rubber is that it increases the friction between the user's hand and the pull groove 8, making it easier and less likely to slip when the user pulls the connecting bracket 6.

[0033] Working Principle: First, loosen the multiple sets of first bolts 912, which securely connect the fixing plate 911 to the base plate 1. Loosening these bolts releases the connection between the fixing plate 911 and the base plate 1, allowing the mounting base 5 to move relative to the base plate 1. Next, rotate the movable rod 712 to engage with the connecting block 714 at one end of the mounting base 5. The connecting block 714 has a slot and screw holes, and the outer surface of the movable rod 712 also has screw holes. The movable rod 712 is securely connected to the connecting block 714 by the cooperation of the nut and the second bolt 715. In this way, the movable rod 712 acts as a bridge, connecting the two sides of the mounting base 5 and providing an additional support point. After completing the above steps, the connecting frame 6 can be moved by pulling the pull groove 8. The design of the pull groove 8 makes it easier for the user to grasp and pull the connecting frame 6. Because the height of the movable rod 712 compensates for the step height difference between the base plate 1 and the mounting base 5, the connecting bracket 6 can slide smoothly out of the resistor assembly chamber 4 without any obstruction. Throughout the movement, the first rotating wheel 811 plays a crucial supporting role. These rotating wheels reduce friction between the mounting base 5 and the base plate 1, allowing the mounting base 5 to move more smoothly. Simultaneously, the limiting plate 812 ensures that the mounting base 5 will not deviate from its track or experience any accidents during movement. Once the connecting bracket 6 is completely removed from the resistor assembly chamber 4, the user can easily access and replace the resistance wire 7. After replacement, the connecting bracket 6 and the mounting base 5 are reinstalled back into the resistor assembly chamber 4 following the reverse steps, and all bolts and nuts are tightened.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A load tester for easy replacement of resistance wires, comprising a base plate (1), wherein a component control chamber (2) and a resistor assembly chamber (4) are provided at the top of the base plate (1), and a control instrument (3) is provided inside the component control chamber (2), characterized in that: The resistor assembly chamber (4) is provided with a mounting base (5), and a connecting frame (6) is installed on the top of the mounting base (5). Multiple sets of resistance wires (7) are arranged between the connecting frames (6). Multiple sets of first rotating wheels (811) are movably installed on both sides of the mounting base (5), and multiple sets of connecting plates (711) are fixedly installed at the front end of the mounting base (5). Movable rods (712) are movably installed between the multiple sets of connecting plates (711), and second rotating wheels (713) are movably installed at the bottom end of the movable rods (712).

2. The load tester of claim 1, wherein: A fixing plate (911) is fixedly installed at one end of the mounting base (5), and the fixing plate (911) is fixedly connected to the base plate (1) by multiple sets of first bolts (912).

3. The load tester of claim 1, wherein: A connecting block (714) is fixedly installed on one side of both the mounting base (5) and the connecting bracket (6), and a slot is provided at one end of the connecting block (714), and a screw hole is provided in the slot.

4. The load tester of claim 1, wherein: The outer surface of the movable rod (712) is provided with a screw hole, and it is connected to the movable rod (712) by a nut and a second bolt (715).

5. The load tester of claim 1, wherein: The connecting frame (6) has grooves (8) on both sides.

6. The load tester of claim 1, wherein: A limiting plate (812) is installed on the top outer surface of the base plate (1).

7. The load tester of claim 5, wherein: The inner wall of the groove (8) is wrapped with rubber.

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