Electrical test fixture
By designing components such as an insulating backplate, wiring troughs, and wire clamping mechanisms, the problems of chaotic structure and messy wiring in electrical testing equipment were solved, achieving stable fixation of electrical equipment and safe power interface, and simplifying the debugging process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING VOCATIONAL UNIV OF IND TECH
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-23
Smart Images

Figure CN224399991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixing device technology, specifically to an electrical testing fixing device. Background Technology
[0002] In teaching experiments, for experiments involving combinations or network systems of multiple electrical devices, electrical testing and fixing devices are more convenient. They are specialized tools or equipment used to fix, support, and position electrical equipment or test specimens in electrical tests.
[0003] Existing technologies involve installing communication testing equipment, such as video surveillance systems, using fixed boards. This requires vertically fixing cameras and then adding functions according to system or design needs, such as using sensors to improve the system's detection capabilities. Most current practices involve placing the equipment on a table for experiments or installing it on a rack, which results in a messy structure, complicated debugging, and a lack of necessary safety protection for the circuitry, making it an unstandardized operation. Utility Model Content
[0004] Purpose of the utility model: In view of the shortcomings mentioned in the background art, the present utility model provides an electrical testing and fixing device.
[0005] Technical solution: An electrical testing and fixing device includes a base and a fixing frame. The fixing frame supports a fixing plate for electrical equipment assembly and testing. The fixing plate has evenly distributed mounting holes for fixing the electrical equipment.
[0006] The fixing plate is also provided with an electrical control board for installing the control circuit. An insulating back plate is provided between the electrical control board and the fixing plate, and the electrical control board is provided with adjustable components to fix the control circuit, including the insulating back plate. The insulating back plate is provided with an adjusting crossbar in a rectangular shape. An adjusting vertical bar is set on the adjusting crossbar by a slider. The slider can be fixed by a fastening bolt, which locks the adjusting crossbar and the adjusting vertical bar. The adjusting crossbar and / or the adjusting vertical bar are provided with clamping blocks for fixing the components, including the circuit board.
[0007] Furthermore, the side of the fixing plate includes a wiring groove, which includes a cable clamping mechanism for fixing cables and a cable management groove, which is located behind or on the side of the wiring groove.
[0008] The fixing frame includes a height adjustment mechanism to control the height of the fixing plate;
[0009] The base is equipped with a mounting seat, which fixes the electric telescopic cylinder. The support tube is sleeved on the outside of the electric telescopic cylinder. The telescopic shaft of the electric telescopic cylinder is connected to the first fixed tube, and the first fixed tube is fixedly connected to the fixed plate. Thus, the electric telescopic cylinder can control the lifting and lowering of the fixed plate.
[0010] Furthermore, a wire clamping mechanism mounting plate is provided on the back of the wire clamping mechanism. The wire clamping mechanism mounting plate is fixedly connected to the fixing plate by bolts. Wire clamping seats are installed at equal intervals at the front end of the wire clamping mechanism mounting plate. An elastic T-shaped block is provided at the center of the wire clamping seat. Wire clamping plates are symmetrically installed at the upper and lower ends of the front side of the T-shaped block. The wire clamping plates have a V-shaped structure. The distance between the center of the wire clamping plate and the wire clamping mechanism mounting plate is less than the distance between the two ends of the wire clamping plate and the wire clamping mechanism mounting plate.
[0011] Furthermore, the base is internally configured with an electrical control box, which can supply power to the electrical equipment required for the test when connected to a power source. The electrical control box has an insulated outer shell and includes a built-in power adapter to provide different power interfaces.
[0012] Furthermore, the base includes a counterweight to improve the stability of the device.
[0013] Compared with existing technologies, the advantages of this invention are as follows: Firstly, by using a fixing plate to install the electrical equipment required for the experiment, this invention improves the clarity of the system layout, facilitating testing and debugging. Secondly, for experiments involving PCB boards or control modules, the electrical control board provides insulation and isolation. This control board is directly clamped via an adjustment component, which is simple and convenient. Thirdly, this invention also incorporates wiring channels around the fixing plate, optimizing the problem of messy wiring. Fourthly, existing experiments suffer from the inconvenience of directly connecting an external power supply; this invention uses a base to house the power supply, which is both safe and convenient. Finally, regarding height, this invention adopts a height-adjustable design, meeting the requirements and functional deployment of a large portion of electrical experiments. Attached Figure Description
[0014] Figure 1 This is the front view of the present invention;
[0015] Figure 2 This is a rear view of the present invention;
[0016] Figure 3 This is a diagram showing the connection relationship between the support tube and the first fixed tube in this utility model;
[0017] Figure 4 This is a schematic diagram of the main view structure of the adjusting and fixing mechanism in this utility model;
[0018] Figure 5 This is a schematic diagram of the wire clamping mechanism in this utility model.
[0019] In the diagram: 1. Base; 2. Counterweight; 3. Fixing frame; 4. Electrical control box; 5. Fixing plate; 6. Wiring trough; 7. Wire clamping mechanism; 8. Electrical control board; 9. Clamping plate; 10. Support tube; 11. First fixing tube; 12. Second fixing tube; 13. Reinforcing tube; 14. Angle bracket; 15. Supporting inclined tube; 16. Cable management trough; 17. Mounting seat; 18. Electric telescopic cylinder; 19. Insulating back plate; 20. Transverse slide groove; 21. Longitudinal slide plate; 22. Slider; 23. Slide rod; 24. Sliding sleeve; 25. Clamping block; 26. Bolt hole; 40. Wire clamping mechanism mounting plate; 41. Wire clamping seat; 42. T-block; 43. Wire clamping plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Figure 1 This invention demonstrates an electrical testing fixture, comprising a base 1. The stability of the base 1 can be improved by adding counterweights 2. An electrical control box 4 is installed inside the base 1, which encloses the power supply components. The device can be connected to a power source through the electrical control box 4, and a power interface is provided for experimental needs, including providing different power supplies and voltage interfaces through a power adapter.
[0022] A mounting bracket 3 is installed on the upper end of the base 1. The mounting bracket 3 is height-adjustable. A mounting plate 5 is installed on the front side of the upper end of the mounting bracket 3 via a clamping plate 9. Figure 2 As shown, mounting holes are evenly distributed on the fixing plate 5. These holes are used to fix related test equipment, including cameras, with screws. The fixing plate 5 also has an electrical control board 8, which is mainly used to fix control modules, including integrated circuits such as PCB boards and microcontroller control boards, during the experiment. The electrical control board 8 uses an insulating backplate 19 for insulation protection to prevent contact with the fixing plate 5 (usually a metal plate) and to avoid instability or other safety issues caused by contact during the experiment. The electrical control circuit in the proportional power test involves high voltage. To improve the neatness of the wiring, a wiring groove 6 is provided on the side of the fixing plate 5, and a wire clamping mechanism 7 is provided in conjunction with the wiring groove 6. The wire clamping mechanism 7, as shown... Figure 5 As shown.
[0023] Combination Figure 2Further describing the back of the device, for the wiring channel 6, the wiring can pass through the through hole in the fixing plate 5 to the rear, or it can be routed from the side. Combined with... Figure 5 As shown, a wire clamping mechanism mounting plate 40 is provided at the rear end of the wire clamping mechanism 7. The wire clamping mechanism mounting plate 40 is fixedly connected to the fixing plate 5 by bolts. Wire clamping seats 41 are installed at equal intervals at the front end of the wire clamping mechanism mounting plate 40. A T-shaped block 42 is provided at the center of the wire clamping seat 41. The T-shaped block 42 includes a flexible metal or plastic part. Wire clamping plates 43 are symmetrically installed at the upper and lower ends of the front side of the T-shaped block 42. The wire clamping plates 43 have a V-shaped structure. The distance between the center of the wire clamping plate 43 and the wire clamping mechanism mounting plate 40 is less than the distance between the two ends of the wire clamping plate 43 and the wire clamping mechanism mounting plate 40.
[0024] Combination Figure 3 Let's introduce the mounting frame 3 of this device, namely the telescopic structure. Figure 3 The set shown is fixed to the base 1 by the mounting bracket 17. The interior of the mounting bracket 17 can accommodate the electric telescopic cylinder 18. The electric telescopic cylinder 18 can also be pneumatic. It drives the first fixed tube 11 connected to it through the telescopic rod. The first fixed tube 11 is sleeved inside the support tube 10. The top of the first fixed tube 11 is connected to the fixed plate 5. Considering stability, the support tube 10 can extend upward and the side slot can restrict the fixed plate 5 to play a supporting role. The first fixed tube 11 is fixed upward, and the fixed plate 5 is lifted upward on the slot.
[0025] Furthermore, in combination Figure 4 The electrical control board 8 has two transverse sliding grooves 20 for the movement of the slider 22. A longitudinal sliding plate 21 is fixed to the slider 22. A sliding rod 23 is mounted on the longitudinal sliding plate 21. Similarly, a sliding sleeve 24 is fitted onto the sliding rod 23. A clamping block 25 is mounted on the sliding sleeve 24. The clamping block 25 is used to clamp and fix the control board, including the circuit board. Therefore, it is made of a soft material, including plastic. The part in contact with the control board is insulated, and clamping can be achieved through grooves. The clamping block 25, slider 22, and other components can be fixed using bolt holes 26.
Claims
1. An electrical testing fixture, comprising a base (1) and a mounting frame (3), wherein the mounting frame (3) supports a mounting plate (5) for electrical equipment assembly testing, characterized in that, The fixing plate (5) has evenly distributed mounting holes, which are used to fix electrical equipment; The fixed plate (5) is also provided with an electrical control board (8) for installing the control circuit. An insulating back plate (19) is provided between the electrical control board (8) and the fixed plate (5). The electrical control board (8) is provided with an adjustable component to fix the control circuit. The insulating back plate (19) is provided with a transverse slide groove (20). A longitudinal slide plate (21) is provided on the transverse slide groove (20) through a slider (22). A slide rod (23) is provided on the longitudinal slide plate (21). A clamping block is provided on the slide rod (23). The clamping block is used to fix the components including the circuit board.
2. The electrical testing and fixing device according to claim 1, characterized in that, The fixing plate (5) has a wiring groove (6) on its side. The wiring groove (6) has a wire clamping mechanism (7) for fixing cables and a cable management groove (16). The cable management groove (16) is located behind or on the side of the wiring groove (6).
3. The electrical testing and fixing device according to claim 1, characterized in that, The fixing frame (3) includes a height adjustment mechanism to control the height of the fixing plate (5); The base (1) is provided with a mounting seat (17), which fixes the electric telescopic cylinder (18). The support tube (10) is sleeved on the outside of the electric telescopic cylinder (18). The telescopic shaft of the electric telescopic cylinder (18) is connected to the first fixed tube (11). The first fixed tube (11) is fixedly connected to the fixed plate (5), so that the electric telescopic cylinder (18) can control the lifting and lowering of the fixed plate (5).
4. The electrical testing and fixing device according to claim 2, characterized in that: The wire clamping mechanism (7) is provided with a wire clamping mechanism mounting plate (40) on its back. The wire clamping mechanism mounting plate (40) is fixedly connected to the fixing plate (5) by bolts. The wire clamping base (41) is installed at equal intervals at the front end of the wire clamping mechanism mounting plate (40). An elastic T-shaped block (42) is provided at the center of the wire clamping base (41). Wire clamping plates (43) are symmetrically installed at the upper and lower ends of the front side of the T-shaped block (42). The wire clamping plate (43) has a V-shaped structure. The distance between the center of the wire clamping plate (43) and the wire clamping mechanism mounting plate (40) is less than the distance between the two ends of the wire clamping plate (40) and the wire clamping mechanism mounting plate (40).
5. The electrical testing and fixing device according to claim 1, characterized in that: The base (1) is equipped with an electrical control box (4) inside. The electrical control box (4) can supply power to the electrical equipment required for the test when connected to a power source. The electrical control box (4) is an insulated shell and includes a built-in power adapter to provide different power interfaces.
6. The electrical testing and fixing device according to claim 1, characterized in that: The base (1) includes a counterweight (2) to improve the stability of the device.