On-site rapid tester for current transformer

Abstract

The utility model discloses a current transformer on-site rapid tester comprising a tester main body, two sides of the bottom of the tester main body are symmetrically provided with connecting blocks, one end of each connecting block is provided with an elastic band, and the elastic bands are connected with the tester main body; through the cooperation of the elastic band, the connecting groove and the connecting block, in the using process of the device, the elastic band can be arranged on the arm of a user in a sleeving mode, the device can be conveniently fixed to a certain degree, then in the field testing process, the device can be effectively prevented from falling on the ground, and when the device is placed on a table top for use, the device is not prone to falling off. The tester main body can be assembled at the top of the base, and the position of the base is fixed under the cooperation of a threaded rod, a connecting plate, a pressing plate and a guide pipe, so that the device can be stably placed on a table top, and the situation that the device falls onto the ground due to collision of the device in the use process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of testers, in particular to an on-site rapid tester for a current transformer. Background Art

[0002] The current transformer is an instrument that converts the large current on the primary side into the small current on the secondary side for measurement based on the principle of electromagnetic induction. In some cases, a tester is needed to test some currents to detect whether the electrical appliances are damaged.

[0003] The existing authorization publication number is "CN217007653U", which is a small current transformer tester, including an insulating shell, on the outer surface of which are provided a power generation switch, a current control switch, a current regulating switch, a primary current test meter, a first secondary current test meter, a second secondary current test meter and a third secondary current test meter; on the upper part of the insulating shell are provided a current output terminal group, a first measurement terminal group, a second measurement terminal group and a third measurement terminal group; a power module is installed inside the insulating shell; and the insulating shell includes a power output circuit and a current test circuit. The utility model has the characteristics of simple structure, reasonable compactness, convenient carrying, convenient and flexible use, simple test process and high efficiency, is suitable for current transformers with various ratios, can measure three windings at the same time, reduces the test workload, saves test time, and is suitable for promotion.

[0004] However, during use, these testers need to be held in the hand for use, and some wiring needs to be plugged into the device. However, during the plugging process, these testers are likely to fall to the ground and cause damage to the testers. Utility Model Content

[0005] The utility model aims to provide a current transformer on-site rapid tester to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current transformer on-site rapid tester, including a tester body, connecting blocks are symmetrically provided on both sides of the bottom of the tester body, an elastic band is provided at one end of the connecting block, the elastic band is connected to the tester body, a base is provided at the bottom of the tester body, connecting plates are symmetrically provided on both sides of the base, threaded rods are provided at the connecting plates, guide tubes are symmetrically provided on both sides of the bottom of the base, a pressure plate is slidably connected to the inside of the guide tubes, a plurality of display screens are provided in the middle of the top of the tester body, and a plurality of line connection holes are respectively provided on both sides of the top of the tester body.

[0007] Preferably, a threaded hole is provided on the top of the connecting plate, and the threaded rod is located inside the threaded hole, so as to facilitate the rotation of the threaded rod and limit the position of the threaded rod.

[0008] Preferably, grip grooves are symmetrically provided on both sides of the tester body, which facilitate inserting fingers into the grip grooves for gripping, and handles are symmetrically provided on the tops of both sides of the tester body, which facilitate taking the tester body for use.

[0009] Preferably, a connecting groove is provided at the bottom of the tester body, and the base is located inside the connecting groove, so as to facilitate the connection between the base and the tester body.

[0010] Preferably, a turning handle is provided on the top of the threaded rod to reduce the difficulty of rotating the threaded rod.

[0011] Preferably, a mounting groove is provided at the bottom of the tester body, and the connecting block is located inside the mounting groove to facilitate connection.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the current transformer on-site rapid tester;

[0013] With the cooperation of the elastic band, the connecting groove and the connecting block, during the use of the device, the elastic band can be put on the user's arm to facilitate a certain fixation of the device, and thus during the on-site test, the device can be effectively prevented from falling to the ground. When placed on a desktop for use, the tester body can be assembled on the top of the base, and with the cooperation of the threaded rod, the connecting plate, the pressure plate and the guide tube, the position of the base can be fixed, so that the device can be stably placed on the desktop, and thus during use, the device can be prevented from hitting the device and falling to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a front cross-sectional view of the utility model;

[0016] Figure 3 It is a top view of the utility model.

[0017] In the figure: 1. Tester body; 2. Elastic band; 3. Connection groove; 4. Threaded rod; 5. Connection plate; 6. Pressure plate; 7. Guide tube; 8. Base; 9. Handle; 10. Grip groove; 11. Connection block; 12. Display screen; 13. Line connection hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 3 The utility model provides an embodiment: a current transformer on-site rapid tester, including a tester body 1, grip grooves 10 are symmetrically arranged on both sides of the tester body 1, which are convenient for fingers to be inserted into the grip grooves 10 for holding, grips 9 are symmetrically arranged on the tops of both sides of the tester body 1, which are convenient for taking the tester body 1 for use, connecting blocks 11 are symmetrically arranged on both sides of the bottom of the tester body 1, and a mounting groove is arranged at the bottom of the tester body 1. The connecting block 11 is located inside the mounting groove for convenient connection, and an elastic band 2 is arranged at one end of the connecting block 11, which is connected to the tester body 1, and a base 8 is arranged at the bottom of the tester body 1, and a connecting groove 3 is arranged at the bottom of the tester body 1;

[0020] The base 8 is located inside the connecting groove 3, which is convenient for connecting the base 8 with the tester body 1. Connecting plates 5 are symmetrically provided on both sides of the base 8. A threaded rod 4 is provided at the connecting plate 5. A turning handle is provided on the top of the threaded rod 4 to reduce the difficulty of rotating the threaded rod 4. A threaded hole is provided on the top of the connecting plate 5. The threaded rod 4 is located inside the threaded hole, which is convenient for the rotation of the threaded rod 4 and limits the position of the threaded rod 4. Guide tubes 7 are symmetrically provided on both sides of the bottom of the base 8. A pressure plate 6 is slidably connected inside the guide tubes 7. A plurality of display screens 12 are provided in the middle of the top of the tester body 1, and a plurality of line connection holes 13 are provided on both sides of the top of the tester body 1.

[0021] Working principle: when the device needs to be carried on site for use, first pass the hand through the two sets of elastic bands 2 so that the elastic bands 2 are tied to the user's arm, and during the wiring process, the user's fingers can reach deep into the grip groove 10, thereby improving the grip effect and preventing the tester body 1 from falling. When placed on a desktop for use, first connect the tester body 1 to the top of the base 8, and then move the base 8 to the specified position. At this time, rotate the two sets of threaded rods 4 to move the threaded rods 4 downward. During the downward movement, the threaded rods 4 press the pressure plate 6, so that the two sets of pressure plates 6 are close to each other, and then the two sets of pressure plates 6 are clamped at the connection position to the desktop, thereby fixing the position of the base 8 to ensure the stability of the device during use.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A current transformer on-site rapid tester, comprising a tester body (1), characterized in that: The bottom of the tester body (1) is symmetrically provided with connection blocks (11), one end of the connection block (11) is provided with an elastic band (2), and the elastic band (2) is connected to the tester body (1). The bottom of the tester body (1) is provided with a base (8), and the base (8) is symmetrically provided with connection plates (5) on both sides, and the connection plates (5) are provided with threaded rods (4). The bottom of the base (8) is symmetrically provided with guide tubes (7), and the guide tubes (7) are slidably connected to the inside of the guide tubes (7). A plurality of display screens (12) are provided in the middle of the top of the tester body (1), and a plurality of line connection holes (13) are provided on both sides of the top of the tester body (1).

2. A current transformer on-site rapid tester according to claim 1, characterized in that: A threaded hole is provided on the top of the connecting plate (5), and the threaded rod (4) is located inside the threaded hole.

3. The current transformer on-site rapid tester according to claim 1, characterized in that: Grip grooves (10) are symmetrically provided on both sides of the tester body (1), and grip handles (9) are symmetrically provided on the tops of both sides of the tester body (1).

4. The current transformer on-site rapid tester according to claim 1, characterized in that: A connecting groove (3) is provided at the bottom of the tester body (1), and the base (8) is located inside the connecting groove (3).

5. The current transformer on-site rapid tester according to claim 1, characterized in that: A turning handle is provided on the top of the threaded rod (4).

6. The current transformer on-site rapid tester according to claim 1, characterized in that: The bottom of the tester body (1) is provided with a mounting groove, and the connection block (11) is located inside the mounting groove.

Images