Fixing structure for three-phase alternating current input filter

Abstract

The utility model discloses a fixing structure used for a three-phase AC input filter, and relates to the technical field of filters, the fixing structure comprises a fixing mechanism, the fixing mechanism comprises a pedestal, the top of the pedestal is provided with a fixing frame, two sides of the top of the pedestal are provided with fixing shells, the two fixing shells are internally provided with screw rods, and the screw rods are provided with screw rods; first bearing seats are arranged at the opposite ends of the two lead screws correspondingly, adjusting plates are arranged outside the two lead screws correspondingly, and sliding blocks are arranged on the four sides of the two adjusting plates correspondingly. According to the utility model, after the two screw rods are respectively rotated clockwise, the adjusting plates corresponding to the screw rods can move towards the direction of the first bearing seat in the fixed shell, and then the connecting rods and the extrusion blocks can synchronously move towards the direction of the filter body, so that the two extrusion blocks can clamp and fix the two sides of the filter body; and a worker does not need to use various mounting tools for mounting and fixing, and the time and energy of the worker in the mounting process are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a fixing structure for a three-phase AC input filter. Background Technique

[0002] A three-phase AC input filter is an electronic device used to filter and smooth the noise and interference in a three-phase AC power supply. Its main function is to eliminate high-frequency noise in the power line and reduce voltage and current fluctuations, thus ensuring the stable operation of the power system.

[0003] However, in the prior art, when traditional three-phase AC input filters are in use, they need to be fixed. The fixing methods of some filters may be unstable, resulting in the filters being prone to loosening or falling off during use, which may pose potential safety hazards. Moreover, the fixing methods of three-phase AC input filters may involve multiple steps and the use of tools, making the installation process cumbersome and time-consuming, which may increase the workload and time cost of installers. Therefore, we provide a fixing structure for a three-phase AC input filter. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing structure for a three-phase AC input filter to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing structure for a three-phase AC input filter, comprising: a fixing mechanism, the fixing mechanism includes a base, a fixing frame is arranged on the top of the base, fixing shells are arranged on both sides of the top of the base, screw rods are arranged inside both fixing shells, bearing seats I are arranged at the opposite ends of both screw rods, adjusting plates are arranged on the outer parts of both screw rods, sliders are arranged on the four sides of both adjusting plates, chutes adapted to the sliders are opened on the four sides of the inner walls of both fixing shells, two connecting rods are arranged on the side of both adjusting plates close to the bearing seats I, extrusion blocks are arranged on the side of both fixing shells close to the connecting rods, and an auxiliary mechanism is arranged on the top of the fixing frame.

[0006] As a further preferred solution of this technical solution, the auxiliary mechanism includes an adjusting bolt, the bottom end of the adjusting bolt passes through a threaded groove opened on the top of the fixing frame and is fixedly connected to the inner surface of a bearing seat II, and the outer part of the adjusting bolt is threadedly connected to the threaded groove opened on the top of the fixing frame.

[0007] As a further preferred solution of this technical solution, the bottom of the bearing seat II is fixedly connected to the top of a pressing plate, and telescopic rods are fixedly connected to both sides of the top of the pressing plate, and the top ends of both telescopic rods are fixedly connected to the top of the inner wall of the fixing frame.

[0008] As a further preference of the present technical solution, a filter body is provided on the top of the base, the bottom of the fixing frame is fixedly connected to the top of the base, and fixing shells are fixedly connected to both sides of the top of the base.

[0009] As a further preference of the present technical solution, one end of the screw rod passes through a card slot opened on the side of the fixing shell away from the connecting rod and is fixedly connected to the inner surface of the first bearing seat, and the outside of the first bearing seat is fixedly connected to one side of the inner wall of the fixing shell close to the extrusion block.

[0010] As a further preference of the present technical solution, the outside of the screw rod is threadedly connected to the inner wall of the threaded groove opened on the adjusting plate, sliders are fixedly connected to all four sides of the adjusting plate, and the outside of the sliders is slidably connected to the inner wall of the sliding groove.

[0011] As a further preference of the present technical solution, one end of the connecting rod is fixedly connected to the side of the adjusting plate close to the first bearing seat, and the other end of the connecting rod passes through a card slot opened on the side of the fixing shell close to the first bearing seat and is fixedly connected to the side of the extrusion block close to the fixing shell.

[0012] The present utility model provides a fixing structure for a three-phase AC input filter, having the following

[0013] Beneficial effects:

[0014] (1) After respectively rotating the two screw rods clockwise in the present utility model, the corresponding adjusting plates will move in the fixing shell towards the direction of the first bearing seat, and further the connecting rod and the extrusion block will synchronously move towards the direction of the filter body. Therefore, the two extrusion blocks will clamp and fix both sides of the filter body, avoiding the need for workers to use a variety of installation tools for installation and fixation, and saving the time and energy of workers during the installation process.

[0015] (2) By clockwise rotating the adjusting bolt in the present utility model, the pressing plate will descend. The provided telescopic rod can ensure that the pressing plate will not rotate or shift when descending. Therefore, when the pressing plate descends to a height close to the top of the filter body, it will press the filter body, further ensuring the fixing effect of the filter body and preventing the filter body from shaking or slipping during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a fixing structure for a three-phase AC input filter of the present utility model.

[0017] Figure 2 It is a schematic diagram of the side structure of the fixing mechanism of a fixing structure for a three-phase AC input filter of the present utility model.

[0018] Figure 3This is a schematic side sectional view of the fixing structure of a three-phase AC input filter for the utility model.

[0019] Figure 4 This is a schematic side sectional view of the auxiliary mechanism and the fixing frame of a fixing structure for a three-phase AC input filter of the utility model.

[0020] In the figure: 1. Fixing mechanism; 11. Base; 12. Fixing frame; 13. Fixing shell; 14. Lead screw; 15. Bearing seat one; 16. Adjusting plate; 17. Slide block; 18. Slide groove; 19. Connecting rod; 110. Extrusion block;

[0021] 2. Auxiliary mechanism; 21. Adjusting bolt; 22. Bearing seat two; 23. Pressure plate; 24. Expansion rod;

[0022] 31. Filter body. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0024] The present utility model provides the following technical solutions: As Figures 1 - 4As shown in the figure, in this embodiment, a fixing structure for a three-phase AC input filter includes: a fixing mechanism 1. The fixing mechanism 1 includes a base 11. A fixing frame 12 is arranged on the top of the base 11. Fixing shells 13 are arranged on both sides of the top of the base 11. A filter body 31 is arranged on the top of the base 11. The bottom of the fixing frame 12 is fixedly connected to the top of the base 11. Fixing shells 13 are fixedly connected to both sides of the top of the base 11. Lead screws 14 are arranged inside both fixing shells 13. One ends of the two lead screws 14 facing each other are provided with bearing seats 15. Adjusting plates 16 are arranged outside the two lead screws 14. Sliders 17 are arranged on the four sides of the two adjusting plates 16. Slide grooves 18 adapted to the sliders 17 are provided on the four sides of the inner walls of the two fixing shells 13. Two connecting rods 19 are arranged on one side of the two adjusting plates 16 close to the bearing seats 15. Pressing blocks 110 are arranged on one side of the two fixing shells 13 close to the connecting rods 19. One end of the lead screw 14 passes through a clamping groove opened on the side of the fixing shell 13 far from the connecting rod 19 and is fixedly connected to the inner surface of the bearing seat 15. The outside of the bearing seat 15 is fixedly connected to the side of the inner wall of the fixing shell 13 close to the pressing block 110. The outside of the lead screw 14 is threadedly connected to the inner wall of the threaded groove opened on the adjusting plate 16. Sliders 17 are fixedly connected to the four sides of the adjusting plate 16. The outside of the slider 17 is slidably connected to the inner wall of the slide groove 18. One end of the connecting rod 19 is fixedly connected to the side of the adjusting plate 16 close to the bearing seat 15. The other end of the connecting rod 19 passes through a clamping groove opened on the side of the fixing shell 13 close to the bearing seat 15 and is fixedly connected to the side of the pressing block 110 close to the fixing shell 13. An auxiliary mechanism 2 is arranged on the top of the fixing frame 12.

[0025] In this embodiment, the three-phase AC input filter mentioned here is an active filter. Due to its built-in power supply, it can drive the load without an additional power supply. It can selectively pass or block signals of specific frequencies. When the staff needs to fix the filter body 31, the filter body 31 can be placed on the base 11. By respectively rotating the two lead screws 14 clockwise, after the lead screws 14 rotate, the adjusting plates 16 will move towards the bearing seats 15 in the fixing shells 13, and the sliders 17 will slide in the slide grooves 18 to ensure the stable effect when the adjusting plates 16 move. When the adjusting blocks move, the connecting rods 19 and the pressing blocks 110 will move synchronously towards the filter body 31. Therefore, the two pressing blocks 110 will clamp and fix both sides of the filter body 31, avoiding the staff from using various installation tools for installation and saving the time and energy of the staff during the installation process.

[0026] As Figure 1 and Figure 4As shown in the figure, the auxiliary mechanism 2 includes an adjusting bolt 21. The bottom end of the adjusting bolt 21 passes through a threaded groove formed in the top of the fixing bracket 12 and is fixedly connected to the inner surface of the second bearing seat 22. The outer part of the adjusting bolt 21 is threadedly connected to the threaded groove formed in the top of the fixing bracket 12. The bottom of the second bearing seat 22 is fixedly connected to the top of the pressing plate 23. Both sides of the top of the pressing plate 23 are fixedly connected with telescopic rods 24, and the top ends of the two telescopic rods 24 are fixedly connected to the top of the inner wall of the fixing bracket 12.

[0027] In this embodiment, in order to further ensure the fixing effect of the filter body 31, the staff can rotate the adjusting bolt 21 clockwise. Then, as the adjusting bolt 21 rotates, the pressing plate 23 will descend, and the telescopic rod 24 will extend as the pressing plate 23 descends. The existence of the telescopic rod 24 can ensure that the pressing plate 23 will not rotate or shift when it descends. Therefore, when the pressing plate 23 descends to a height close to the top of the filter body 31, it will press the filter body 31, further ensuring the fixing effect of the filter body 31 and preventing the filter body 31 from shaking or slipping during use.

[0028] The present utility model provides a fixing structure for a three-phase AC input filter, and the specific working principle is as follows:

[0029] When the staff needs to fix the filter body 31, the filter body 31 can be placed on the base 11. To achieve fixation, it can be completed by respectively rotating the two lead screws 14 clockwise. As the lead screws 14 rotate, the adjusting plate 16 will move towards the direction of the first bearing seat 15 within the fixing housing 13. At the same time, the slider 17 will also slide within the chute 18. When the adjusting block starts to move, the connecting rod 19 and the extrusion block 110 will move synchronously towards the direction of the filter body 31. This means that the two extrusion blocks 110 will clamp and fix both sides of the filter body 31. To ensure the best fixing effect of the filter body 31, the adjusting bolt 21 can be rotated clockwise. As the adjusting bolt 21 rotates, the pressing plate 23 will gradually descend. At the same time, the telescopic rod 24 will also gradually extend as the pressing plate 23 descends. When the pressing plate 23 descends to a height close to the top of the filter body 31, it will exert pressure on the filter body 31, and the role of this pressure is to further ensure the fixing effect of the filter body 31.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing structure for a three-phase AC input filter, characterized in that: include: A fixing mechanism (1), the fixing mechanism (1) comprising a base (11), a fixing frame (12) being arranged on the top of the base (11), fixing shells (13) being arranged on both sides of the top of the base (11), screw rods (14) being arranged inside the two fixing shells (13), bearing seats (15) being arranged at opposite ends of the two screw rods (14), adjusting plates (16) being arranged outside the two screw rods (14), sliders (17) being arranged on four sides of the two adjusting plates (16), sliding grooves (18) matching the sliders (17) being arranged on four sides of the inner walls of the two fixing shells (13), two connecting rods (19) being arranged on one side of the two adjusting plates (16) close to the bearing seats (15), extrusion blocks (110) being arranged on one side of the two fixing shells (13) close to the connecting rods (19), and an auxiliary mechanism (2) being arranged on the top of the fixing frame (12).

2. The fixing structure for a three-phase AC input filter according to claim 1, characterized in that: The auxiliary mechanism (2) comprises an adjusting bolt (21), the bottom end of the adjusting bolt (21) passes through a threaded groove opened at the top of the fixing frame (12) and is fixedly connected to the inner surface of the second bearing seat (22), and the outer portion of the adjusting bolt (21) is threadedly connected to the threaded groove opened at the top of the fixing frame (12).

3. The fixing structure for a three-phase AC input filter according to claim 2, characterized in that: The bottom of the second bearing seat (22) is fixedly connected to the top of the pressure plate (23), and telescopic rods (24) are fixedly connected to both sides of the top of the pressure plate (23), and the top ends of the two telescopic rods (24) are fixedly connected to the top of the inner wall of the fixing frame (12).

4. The fixing structure for a three-phase AC input filter according to claim 1, characterized in that: A filter body (31) is arranged on the top of the base (11), the bottom of the fixing frame (12) is fixedly connected to the top of the base (11), and both sides of the top of the base (11) are fixedly connected to fixing shells (13).

5. The fixing structure for a three-phase AC input filter according to claim 1, characterized in that: One end of the screw rod (14) passes through a slot provided on a side of the fixed shell (13) away from the connecting rod (19) and is fixedly connected to the inner surface of the bearing seat (15), and the outside of the bearing seat (15) is fixedly connected to a side of the inner wall of the fixed shell (13) close to the extrusion block (110).

6. The fixing structure for a three-phase AC input filter according to claim 1, characterized in that: The outside of the screw rod (14) is threadedly connected to the inner wall of the threaded groove provided on the adjustment plate (16); four sides of the adjustment plate (16) are fixedly connected with sliders (17); the outside of the slider (17) is slidably connected to the inner wall of the slide groove (18).

7. The fixing structure for a three-phase AC input filter according to claim 1, characterized in that: One end of the connecting rod (19) is fixedly connected to a side of the adjustment plate (16) close to the bearing seat (15), and the other end of the connecting rod (19) passes through a slot provided on a side of the fixed shell (13) close to the bearing seat (15) and is fixedly connected to a side of the extrusion block (110) close to the fixed shell (13).

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