Single mutual inductor detection tool

Abstract

The utility model relates to the technical field of mutual inductor detection, in particular to a single mutual inductor detection tool which comprises a mounting table, a detection seat arranged on the mounting table and a placement groove formed in the detection seat. The support frame is arranged on the mounting table; the hinge seat is arranged on the front side of the upper end of the support frame; the handle is hinged to the front side of the upper end of the hinge seat; the sliding sleeve is vertically arranged on the front side of the lower end of the hinge seat; the lifting plate is arranged at the lower end of the sliding rod, and the contact pin is arranged at the lower end of the lifting plate. The design is simple in structure, easy to operate, low in cost, small in size and convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of instrument transformer testing technology, specifically to a single instrument transformer testing fixture. Background Technology

[0002] When testing the performance of a current transformer, it is necessary to first limit the current transformer and then connect it to the testing instrument to test its various performance characteristics. In order to achieve automated testing and improve testing efficiency, the existing testing fixtures are very complex, costly, and inconvenient to transport. Utility Model Content

[0003] To solve the above problems, this utility model provides a single transformer testing fixture with a simple structure, manual operation, low cost, and convenient handling and carrying.

[0004] The technical solution adopted by this utility model is to provide a single transformer testing fixture, including a mounting platform, a testing seat set on the mounting platform, and a placement groove set on the testing seat. It also includes a support frame set on the mounting platform, a hinge seat set on the upper front side of the support frame, a handle hinged to the upper front side of the hinge seat, a sliding sleeve vertically set on the lower front side of the hinge seat, a sliding rod slidably inserted into the sliding sleeve, a connecting frame set between the upper end of the sliding rod and the handle, a lifting plate set at the lower end of the sliding rod, and a pin set at the lower end of the lifting plate.

[0005] The handle is L-shaped with its front end bent downwards and hinged to the hinge seat. The upper end of the connecting frame is hinged to the bent position of the front end of the handle, and the lower end is hinged to the upper end of the sliding rod. The sliding rod is vertically inserted into the sliding sleeve. The pin corresponds vertically to the placement slot. The outer end of the handle swings upwards, causing the sliding rod to slide up and down inside the sliding sleeve. The sliding rod causes the lifting plate to move up and down above the detection seat.

[0006] The hinge base includes a base plate fixed to the front side of the support frame and a hinge frame fixed to the front end of the base plate. The hinge frame has a vertically arranged C-shaped structure with its opening facing forward. The upper end of the opening of the hinge frame is hinged to the handle, and the lower end is fixed to the side of the sliding sleeve.

[0007] The connecting frame includes a left side plate and a right side plate arranged opposite to each other. Both the left side plate and the right side plate are C-shaped structures. The openings of the left side plate and the right side plate are opposite to each other to form a clearance opening. The upper end of the opening of the hinge frame is located inside the clearance opening. The upper ends of the left side plate and the right side plate are hinged to the bend of the handle. The lower ends of the left side plate and the right side plate are hinged to the upper end of the sliding rod.

[0008] The support frame is provided with a guide frame on the rear side and a guide rod is vertically arranged between the guide frame and the mounting platform. The lifting plate is provided with a guide hole adapted to the guide rod, and the guide rod is slidably inserted into the guide hole.

[0009] The beneficial effects of this utility model are that it provides a single current transformer testing fixture. During testing, a single current transformer is placed in the placement slot. The handle is manually swung, and the sliding rod is pressed down by the connecting frame, causing the lifting plate to descend until the pin contacts the electrical terminal on the current transformer. After testing, the outer end of the handle is held and pulled back, causing the lifting plate to rise. After the pin disengages from the current transformer, the tested current transformer is manually removed from the placement slot. This design can position the current transformer and quickly connect it to the current transformer via the pin. It also has a simple structure, is easy to operate, low in cost, small in size, and convenient for handling and carrying. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a structural schematic diagram of another aspect of this utility model;

[0012] Figure 3 This is a schematic diagram of the hinged base;

[0013] Figure 4 This is a schematic diagram of the handle's structure;

[0014] Figure 5 This is a structural diagram of the connecting frame;

[0015] Figure 6 This is a reference diagram of the lowering state of the lifting plate of this utility model.

[0016] In the attached diagram, 1 is the mounting platform, 2 is the testing seat, 3 is the placement slot, 4 is the support frame, 5 is the hinge seat, 6 is the handle, 7 is the sliding sleeve, 8 is the sliding rod, 9 is the connecting frame, 10 is the lifting plate, 11 is the pin, 12 is the base plate, 13 is the hinge frame, 14 is the left side plate, 15 is the right side plate, 16 is the guide frame, and 17 is the guide rod. Detailed Implementation

[0017] like Figure 1-6As shown, this utility model provides a single transformer testing fixture, including a mounting platform 1, a testing seat 2 mounted on the mounting platform 1, and a placement groove 3 mounted on the testing seat 2. It also includes a support frame 4 mounted on the mounting platform 1, a hinge seat 5 mounted on the upper front side of the support frame 4, a handle 6 hinged to the upper front side of the hinge seat 5, a sliding sleeve 7 vertically mounted on the lower front side of the hinge seat 5, a sliding rod 8 slidably inserted into the sliding sleeve 7, a connecting bracket 9 between the upper end of the sliding rod 8 and the handle 6, and a connecting bracket 9 mounted on the lower side of the sliding rod 8. The lifting plate 10 at one end and the pin 11 at the lower end of the lifting plate 10; the handle 6 is L-shaped and the front end is bent downward and hinged to the hinge seat 5; the upper end of the connecting frame 9 is hinged to the bent position of the front end of the handle 6 and the lower end is hinged to the upper end of the sliding rod 8; the sliding rod 8 is vertically inserted into the sliding sleeve 7; the pin 11 corresponds vertically to the placement groove 3; the outer end of the handle 6 swings upward to drive the sliding rod 8 to slide up and down in the sliding sleeve 7; the sliding rod 8 drives the lifting plate 10 to move up and down above the detection seat 2.

[0018] The placement slot 3 on the test seat 2 is adapted to the shape of the current transformer. The current transformer is placed and positioned through the placement slot 3. The bent part of the handle 6 is hinged to the upper end of the connecting frame 9. The lower end of the bent end of the handle 6 is hinged to the hinge seat 5, and the hinge position corresponds vertically to the sliding sleeve 7. The lower end of the connecting frame 9 is hinged to the upper end of the sliding rod 8. Through the three hinge points, the handle 6 can swing to drive the sliding rod 8 to rise and fall.

[0019] During testing, a single current transformer is placed in the placement slot 3. The outer end of the handle 6 is manually swung upwards, causing the bent part of the handle 6 to swing downwards in an arc. The connecting bracket 9 presses down the sliding rod 8, which slides downwards within the sliding sleeve 7, lowering the lifting plate 10 until the pin 11 at the lower end of the lifting plate 10 contacts the electrical terminal on the current transformer. The other end of the pin 11 is connected to a corresponding testing instrument via a cable. The testing instrument performs performance testing on the current transformer. After testing, the outer end of the handle 6 is pulled back, causing the lifting plate 10 to rise. Once the pin 11 detaches from the current transformer, the tested current transformer is manually removed from the placement slot 3. This design is simple in structure, easy to operate, low in cost, small in size, and convenient for transportation and carrying.

[0020] like Figure 3 As shown, the hinge seat 5 includes a base plate 12 fixed to the front side of the support frame 4 and a hinge frame 13 fixed to the front end of the base plate 12. The hinge frame 13 has a vertically arranged C-shaped structure with the opening facing forward. The upper end of the opening of the hinge frame 13 is hinged to the handle 6, and the lower end is fixed to the side of the sliding sleeve 7.

[0021] like Figure 5As shown, the connecting frame 9 includes a left side plate 14 and a right side plate 15 arranged opposite to each other. Both the left side plate 14 and the right side plate 15 are C-shaped structures. The openings of the left side plate 14 and the right side plate 15 are opposite to each other to form a clearance opening. The upper end of the opening of the hinge frame 13 is located inside the clearance opening. The upper ends of the left side plate 14 and the right side plate 15 are hinged to the bend of the handle 6. The lower ends of the left side plate 14 and the right side plate 15 are hinged to the upper end of the sliding rod 8.

[0022] The connecting frame 9 consists of two C-shaped left side plates 14 and right side plates 15 arranged opposite each other. The upper ends of the left side plates 14 and right side plates 15 are clamped at the bend of the handle 6, and after holes are made at corresponding positions, they are connected by pins to achieve hinge, which is convenient for disassembly and assembly. The clearance formed between the left side plates 14 and right side plates 15 can avoid the connection position between the lower end of the handle 6 and the upper part of the hinge seat 6. The lower ends of the left side plates 14 and right side plates 15 are clamped at the upper end of the sliding rod 8, and after holes are made at corresponding positions, they are connected by pins to achieve hinge. The upper front side of the hinge seat 6 has two protruding upright plates. The lower end of the handle 6 is inserted between the upright plates, and after holes are made at corresponding positions, it is connected by pins to achieve hinge. The three hinges adopt the same hinge structure, which is convenient for processing and disassembly.

[0023] like Figure 2 As shown, a guide frame 16 is provided on the rear side of the support frame 4, and a guide rod 17 is vertically arranged between the guide frame 16 and the mounting platform 1. The lifting plate 10 is provided with a guide hole that matches the guide rod 17, and the guide rod 17 is slidably inserted into the guide hole.

[0024] The upper end of the guide rod 17 is fixed on the guide frame 16 and the lower end is fixed on the mounting platform 1. The lifting plate 10 is slidably fitted onto the guide rod 17 through the guide hole at the rear end. When the lifting plate 10 is raised or lowered, it can guide and stabilize the lifting plate 10.

Claims

1. A single current transformer testing fixture, comprising a mounting platform (1), a testing seat (2) disposed on the mounting platform (1), and a placement slot (3) disposed on the testing seat (2), characterized in that: It also includes a support frame (4) set on the mounting platform (1), a hinge seat (5) set on the front side of the upper end of the support frame (4), a handle (6) hinged to the front side of the upper end of the hinge seat (5), a sliding sleeve (7) set vertically on the front side of the lower end of the hinge seat (5), a sliding rod (8) slidably inserted into the sliding sleeve (7), a connecting frame (9) set between the upper end of the sliding rod (8) and the handle (6), a lifting plate (10) set at the lower end of the sliding rod (8), and a pin (11) set at the lower end of the lifting plate (10); The handle (6) is L-shaped and its front end is bent downward and hinged to the hinge seat (5). The upper end of the connecting frame (9) is hinged to the bent position of the front end of the handle (6) and the lower end is hinged to the upper end of the sliding rod (8). The sliding rod (8) is vertically inserted into the sliding sleeve (7). The pin (11) corresponds vertically to the placement groove (3). The outer end of the handle (6) swings upward to drive the sliding rod (8) to slide up and down in the sliding sleeve (7). The sliding rod (8) drives the lifting plate (10) to move up and down above the detection seat (2).

2. The single transformer testing fixture according to claim 1, characterized in that: The hinge seat (5) includes a base plate (12) fixed to the front side of the support frame (4) and a hinge frame (13) fixed to the front end of the base plate (12). The hinge frame (13) has a vertically arranged C-shaped structure with the opening facing forward. The upper end of the opening of the hinge frame (13) is hinged to the handle (6), and the lower end is fixed to the side of the sliding sleeve (7).

3. The single transformer testing fixture according to claim 2, characterized in that: The connecting frame (9) includes a left side plate (14) and a right side plate (15) arranged opposite to each other. Both the left side plate (14) and the right side plate (15) are C-shaped structures. The openings of the left side plate (14) and the right side plate (15) are opposite to each other to form a clearance opening. The upper end of the opening of the hinge frame (13) is located inside the clearance opening. The upper ends of the left side plate (14) and the right side plate (15) are hinged to the bend of the handle (6). The lower ends of the left side plate (14) and the right side plate (15) are hinged to the upper end of the sliding rod (8).

4. The single transformer testing fixture according to claim 1, characterized in that: The support frame (4) is provided with a guide frame (16) on the rear side and a guide rod (17) is vertically arranged between the guide frame (16) and the mounting platform (1). The lifting plate (10) is provided with a guide hole that matches the guide rod (17), and the guide rod (17) is slidably inserted into the guide hole.

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