Combined filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a combined filter, which comprises a shell, a single-tuned filter circuit box, a high-pass filter circuit box, a circuit switch, a sealing cover, a control button and a power cavity, the power cavity is arranged in the sealing cover, the control button is arranged on the sealing cover, the sealing cover is mounted at the top of the shell in an inserting manner, and the circuit switch is arranged on the power cavity. The single-tuned filter circuit box and the high-pass filter circuit box are both installed in the shell in an inserted mode, the circuit switch is arranged between the single-tuned filter circuit box and the high-pass filter circuit box, and the circuit switch is electrically connected with the single-tuned filter circuit box and the high-pass filter circuit box. The two racks are installed in the power cavity in a sliding mode, gears are installed on the two sides of the two racks in an engaged mode, and limiting rods are fixedly installed at the tops of the four gears; a worker can conveniently overhaul the single-tuned filter circuit box and the high-pass filter circuit box, the operation is simple, and tools are not needed.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, and in particular relates to a combined filter. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. A filter can effectively filter out a specific frequency point or frequencies other than that frequency point in a power line to obtain a power signal of a specific frequency, or eliminate a power signal after a specific frequency.

[0003] For example, Chinese patent CN219458673U discloses a combined passive filter. This combined passive filter includes a housing, with a mounting base fixedly installed on the side wall of the housing. A single-tuned filter circuit box is fixedly installed on the inner wall of the housing. The output terminal of the single-tuned filter circuit box is electrically connected to a high-pass filter circuit box via a circuit switch. A connector is fixedly installed on the top of the housing. To prevent wear or detachment of the copper wires when they come into contact with the connector during circuit connection, this combined passive filter incorporates an anti-slip component. This component, along with a rotating rod that rotates downwards with the insulating bolt, causes a spiral spring to clamp the connecting rods together. This clamps the copper wires of the wires onto the positioning plate on both sides, greatly enhancing the positioning effect of the copper wires and ensuring the stability of the circuit connection.

[0004] The aforementioned patent has the following problems:

[0005] This patent has some drawbacks in its use, such as the need for tools to fix the single-tuned filter circuit box and high-pass filter circuit box inside the housing. Without these tools, it is inconvenient to repair them. Therefore, we propose a combined filter. Utility Model Content

[0006] The purpose of this invention is to provide a combined filter to solve the problems mentioned in the background art.

[0007] In view of this, the present invention provides a combined filter, including a housing, a single-tuned filter circuit box, a high-pass filter circuit box, a circuit switch, a sealing cover, and a control button, and further including:

[0008] The power chamber is located inside a sealed cover. The control button is located on the sealed cover. The sealed cover is inserted into the top of the housing. The single-tuned filter circuit box and the high-pass filter circuit box are both inserted into the housing. The circuit switch is located between the single-tuned filter circuit box and the high-pass filter circuit box, and the circuit switch is electrically connected to both the single-tuned filter circuit box and the high-pass filter circuit box.

[0009] Two racks are slidably installed in the power chamber. Gears are meshed on both sides of the two racks. Limiting rods are fixedly installed on the top of the four gears. One end of each of the four limiting rods passes through the power chamber and extends into the housing. The four limiting rods are inserted into the housing.

[0010] A drive assembly, located within the sealing cover, is used to drive the two racks to slide.

[0011] In this technical solution, the control button is first turned on, and then the circuit switch is kept open. At the same time, the external circuit can filter the circuit through the combination of the single-tuned filter circuit box and the high-pass filter circuit box, so as to ensure that the circuit can operate stably.

[0012] When the single-tuned filter circuit box and the high-pass filter circuit box need to be repaired, the drive assembly can drive the two racks to slide, and the two racks can drive the two gears meshing with them to rotate. The four gears can drive the four limit rods to rotate. After all four limit rods have entered the power chamber, the sealing cover can be removed upwards. Then the single-tuned filter circuit box and the high-pass filter circuit box will be exposed to the outside, which is convenient for the staff to repair the single-tuned filter circuit box and the high-pass filter circuit box. The operation is simple and does not require the use of tools.

[0013] In the above technical solution, the driving component further includes:

[0014] A sliding bar is slidably installed inside the power chamber. Several guide posts are fixedly installed on one side of the sliding bar, and a tension spring is fixedly installed at one end of each of the guide posts. Two sliding grooves are opened at the bottom of the sliding bar, and a sliding post is slidably installed in each of the two sliding grooves. A sliding rod is fixedly installed at the bottom end of each of the two sliding posts, and the two sliding rods are respectively fixedly connected to two racks.

[0015] In this technical solution, the sliding bar is first pulled to slide, which in turn drives several guide posts to slide. These guide posts then pull several tension springs to extend. The sliding bar, through two sliding grooves, drives two sliding posts to slide. These two sliding posts then drive two sliding rods to slide. These two sliding rods then pull two racks to slide. These racks then drive two gears meshing with them to rotate. These four gears then drive four limit rods to rotate. Once all four limit rods have entered the power chamber, the sealing cover can be removed upwards. Subsequently, the single-tuned filter circuit box and the high-pass filter circuit box will be exposed to the outside, facilitating maintenance by personnel. The operation is simple and requires no tools.

[0016] In the above technical solution, furthermore, one end of each of the tension springs is welded to the inner wall of the power cavity.

[0017] In this technical solution, it is ensured that all tension springs can be used stably.

[0018] In the above technical solution, a fixing plate is further fixedly installed on the sliding bar.

[0019] In this technical solution, the fixed plate facilitates the movement of the sliding bar by the staff.

[0020] In the above technical solution, furthermore, the four gears and the four limiting rods are rotatably connected to the power cavity, and the several guide columns, the two fixed plates, and the fixed plate are slidably connected to the power cavity.

[0021] In this technical solution, it is ensured that all four gears and four limit rods can rotate within the power cavity, and that several guide columns, two guide plates, and a fixed plate can slide within the power cavity.

[0022] In the above technical solution, furthermore, four limiting plates are fixedly installed inside the housing and at the bottom of the sealing cover, and the eight limiting plates are in close contact with the single-tuned filter circuit box and the high-pass filter circuit box respectively.

[0023] In this technical solution, the positions of the single-tuned filter circuit box and the high-pass filter circuit box can be limited by the eight limiting plates, ensuring that the single-tuned filter circuit box and the high-pass filter circuit box will not be displaced during use.

[0024] In the above technical solution, the diameter of the sliding column is adapted to the size of the sliding groove.

[0025] In this technical solution, it is ensured that the sliding column can slide stably within the sliding groove.

[0026] In the above technical solution, further, the guide posts are distributed at equal intervals on the sliding bar.

[0027] In this technical solution, it is ensured that the slider can slide stably.

[0028] The beneficial effects of this utility model are:

[0029] When the single-tuned filter circuit box and the high-pass filter circuit box need to be repaired, the drive component can drive two racks to slide, and the two racks can drive the two gears meshing with them to rotate. The four gears can drive the four limit rods to rotate. After all four limit rods have entered the power chamber, the sealing cover can be removed upwards, and then the single-tuned filter circuit box and the high-pass filter circuit box will be exposed to the outside, which is convenient for the staff to repair the single-tuned filter circuit box and the high-pass filter circuit box. The operation is simple and does not require the use of tools. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the partial explosion structure of this utility model;

[0032] Figure 3 This is one of the schematic diagrams of the shell structure of this utility model;

[0033] Figure 4 This is the second schematic diagram of the cross-sectional structure of the shell of this utility model;

[0034] Figure 5 This is a schematic diagram of the sealing cover area structure of this utility model;

[0035] Figure 6 This is one of the schematic diagrams of the cross-sectional structure of the sealing cap of this utility model;

[0036] Figure 7 This is the second schematic diagram of the cross-sectional structure of the sealing cap of this utility model;

[0037] Figure 8 This is the third schematic diagram of the cross-sectional structure of the sealing cap of this utility model;

[0038] Figure 9 This is a schematic diagram of the cross-sectional structure of the sliding bar of this utility model.

[0039] The markings in the diagram are as follows:

[0040] 1. Housing; 2. Single-tuned filter circuit box; 3. High-pass filter circuit box; 4. Circuit switch; 5. Sealing cover; 6. Control button; 7. Power chamber; 8. Rack; 9. Gear; 10. Limiting rod; 11. Sliding bar; 12. Guide post; 13. Tension spring; 14. Sliding groove; 15. Sliding column; 16. Sliding rod; 17. Fixing plate; 18. Limiting plate. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1 - Figure 9 This application will be described in further detail.

[0042] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0043] Example 1: This example provides a combined filter, including a housing 1, a single-tuned filter circuit box 2, a high-pass filter circuit box 3, a circuit switch 4, a sealing cover 5, and a control button 6, and also includes:

[0044] The power chamber 7 is located inside the sealing cover 5. The control button 6 is located on the sealing cover 5. The sealing cover 5 is inserted into the top of the housing 1. The single-tuned filter circuit box 2 and the high-pass filter circuit box 3 are both inserted into the housing 1. The circuit switch 4 is located between the single-tuned filter circuit box 2 and the high-pass filter circuit box 3, and the circuit switch 4 is electrically connected to both the single-tuned filter circuit box 2 and the high-pass filter circuit box 3.

[0045] Two racks 8 are slidably installed in the power cavity 7. Gears 9 are meshed on both sides of the two racks 8. Limiting rods 10 are fixedly installed on the top of the four gears 9. One end of each of the four limiting rods 10 passes through the power cavity 7 and extends into the housing 1. The four limiting rods 10 are inserted into the housing 1.

[0046] The drive assembly is located inside the sealing cover 5 and is used to drive the two racks 8 to slide.

[0047] First, the control button 6 is turned on, then the circuit switch 4 is kept open. At the same time, the external circuit can filter the circuit through the combination of the single-tuned filter circuit box 2 and the high-pass filter circuit box 3, so as to ensure that the circuit can operate stably.

[0048] When the single-tuned filter circuit box 2 and the high-pass filter circuit box 3 need to be repaired, the drive assembly can drive the two racks 8 to slide, and the two racks 8 respectively drive the two gears 9 meshing with them to rotate. The four gears 9 respectively drive the four limit rods 10 to rotate. After the four limit rods 10 have entered the power chamber 7, the sealing cover 5 can be removed upwards. Then the single-tuned filter circuit box 2 and the high-pass filter circuit box 3 will be exposed to the outside, which is convenient for the staff to repair the single-tuned filter circuit box 2 and the high-pass filter circuit box 3. The operation is simple and does not require the use of tools.

[0049] In this embodiment, the driving component includes:

[0050] A sliding bar 11 is slidably installed in the power chamber 7. Several guide posts 12 are fixedly installed on one side of the sliding bar 11. A tension spring 13 is fixedly installed at one end of each guide post 12. Two sliding grooves 14 are opened at the bottom of the sliding bar 11. A sliding post 15 is slidably installed in each of the two sliding grooves 14. A sliding rod 16 is fixedly installed at the bottom end of each of the two sliding posts 15. The two sliding rods 16 are fixedly connected to two racks 8 respectively.

[0051] First, the sliding bar 11 is pulled to slide, which drives several guide posts 12 to slide. The guide posts 12 pull several tension springs 13 to extend. The sliding bar 11 drives two sliding posts 15 to slide through two sliding grooves 14. The two sliding posts 15 drive two sliding rods 16 to slide. The two sliding rods 16 pull two racks 8 to slide. The two racks 8 drive two gears 9 that mesh with them to rotate. The four gears 9 drive four limit rods 10 to rotate. When all four limit rods 10 have entered the power chamber 7, the sealing cover 5 can be removed upwards. Then, the single-tuned filter circuit box 2 and the high-pass filter circuit box 3 will be exposed to the outside, making it convenient for staff to inspect the single-tuned filter circuit box 2 and the high-pass filter circuit box 3. The operation is simple and does not require tools.

[0052] Example 2: This example provides a combined filter, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0053] In this embodiment, one end of each of the tension springs 13 is welded to the inner wall of the power chamber 7.

[0054] This ensures that all tension springs 13 can be used stably.

[0055] Example 3: This example provides a combined filter, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0056] In this embodiment, a fixing plate 17 is fixedly installed on the sliding bar 11.

[0057] The fixed plate 17 facilitates the movement of the sliding bar 11 by the staff.

[0058] Example 4: This example provides a combined filter, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0059] In this embodiment, the four gears 9 and the four limiting rods 10 are rotatably connected to the power cavity 7, and the several guide pillars 12, two and the fixing plate 17 are slidably connected to the power cavity 7.

[0060] Specifically, it ensures that all four gears 9 and four limit rods 10 can rotate within the power chamber 7, and that several guide pillars 12, two guide rods, and two fixing plates 17 can slide within the power chamber 7.

[0061] Example 5: This example provides a combined filter, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0062] In this embodiment, four limiting plates 18 are fixedly installed inside the housing 1 and at the bottom of the sealing cover 5. The eight limiting plates 18 are in close contact with the single-tuned filter circuit box 2 and the high-pass filter circuit box 3, respectively.

[0063] The eight limiting plates 18 can limit the positions of the single-tuned filter circuit box 2 and the high-pass filter circuit box 3, ensuring that the single-tuned filter circuit box 2 and the high-pass filter circuit box 3 will not be displaced during use.

[0064] Example 6: This example provides a combined filter, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0065] In this embodiment, the diameter of the sliding column 15 is adapted to the size of the sliding groove 14.

[0066] This ensures that the sliding column 15 can slide stably within the sliding groove 14.

[0067] Example 7: This example provides a combined filter, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0068] In this embodiment, a number of guide posts 12 are distributed at equal intervals on the sliding bar 11.

[0069] Among these measures, it is ensured that the slider 11 can slide stably.

[0070] Working principle: First, turn on the control button 6, then keep the circuit switch 4 open. At the same time, the external circuit can filter the circuit through the combined action of the single-tuned filter circuit box 2 and the high-pass filter circuit box 3, so as to ensure that the circuit can operate stably.

[0071] When it is necessary to repair the single-tuned filter circuit box 2 and the high-pass filter circuit box 3, first pull the fixed plate 17 to slide. The fixed plate 17 drives the sliding bar 11 to slide. The sliding bar 11 drives several guide posts 12 to slide. The guide posts 12 pull several tension springs 13 to extend. The sliding bar 11 drives two sliding posts 15 to slide through two sliding grooves 14. The two sliding posts 15 drive two sliding rods 16 to slide. The two sliding rods 16 pull two racks 8 to slide. The two racks 8 drive two gears 9 that mesh with them to rotate. The four gears 9 drive four limit rods 10 to rotate. When all four limit rods 10 have entered the power chamber 7, the sealing cover 5 can be removed upwards. Then the single-tuned filter circuit box 2 and the high-pass filter circuit box 3 will be exposed to the outside, making it convenient for staff to repair the single-tuned filter circuit box 2 and the high-pass filter circuit box 3. The operation is simple and does not require the use of tools.

[0072] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A combined filter, comprising a housing (1), a single-tuned filter circuit box (2), a high-pass filter circuit box (3), a circuit switch (4), a sealing cover (5), and a control button (6), characterized in that, Also includes: The power chamber (7) is located inside the sealing cover (5). The control button (6) is located on the sealing cover (5). The sealing cover (5) is inserted into the top of the housing (1). The single-tuned filter circuit box (2) and the high-pass filter circuit box (3) are both inserted into the housing (1). The circuit switch (4) is located between the single-tuned filter circuit box (2) and the high-pass filter circuit box (3). The circuit switch (4) is electrically connected to the single-tuned filter circuit box (2) and the high-pass filter circuit box (3). Two racks (8) are slidably installed in the power cavity (7). Gears (9) are meshed on both sides of the two racks (8). Limiting rods (10) are fixedly installed on the top of the four gears (9). One end of the four limiting rods (10) passes through the power cavity (7) and extends into the housing (1). The four limiting rods (10) are inserted into the housing (1). A drive assembly located inside the sealing cover (5) and used to drive the two racks (8) to slide.

2. A combined filter according to claim 1, characterized in that, The driving component includes: A sliding bar (11) is slidably installed in the power cavity (7). Several guide posts (12) are fixedly installed on one side of the sliding bar (11). A tension spring (13) is fixedly installed at one end of each of the guide posts (12). Two sliding grooves (14) are opened at the bottom of the sliding bar (11). A sliding post (15) is slidably installed in each of the two sliding grooves (14). A sliding rod (16) is fixedly installed at the bottom end of each of the two sliding posts (15). The two sliding rods (16) are fixedly connected to two racks (8) respectively.

3. A combined filter according to claim 2, characterized in that, One end of each of the tension springs (13) is welded to the inner wall of the power chamber (7).

4. A combined filter according to claim 2, characterized in that, A fixing plate (17) is fixedly installed on the sliding bar (11).

5. A combined filter according to claim 4, characterized in that, The four gears (9) and the four limiting rods (10) are rotatably connected to the power cavity (7), and the guide pillars (12), the two and the fixing plate (17) are slidably connected to the power cavity (7).

6. A combined filter according to claim 1, characterized in that, Four limiting plates (18) are fixedly installed inside the housing (1) and at the bottom of the sealing cover (5). The eight limiting plates (18) are in close contact with the single-tuned filter circuit box (2) and the high-pass filter circuit box (3), respectively.

7. A combined filter according to claim 2, characterized in that, The diameter of the sliding column (15) is adapted to the size of the sliding groove (14).

8. A combined filter according to claim 2, characterized in that, Several of the guide posts (12) are distributed at equal intervals on the sliding bar (11).

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