A cavity filter

Abstract

The utility model relates to the technical field of filters, and in particular to a cavity filter, comprising a filter and a fixed mainboard, wherein movable grooves are provided on both sides of the fixed mainboard, a mounting plate is provided in the movable groove, two groups of mounting holes are provided on the mounting plate, a handle is provided on one side of the mounting plate, a limiting component is provided on the fixed mainboard, the limiting component comprises a movable groove provided on one side of the movable groove, a movable block is provided in the movable groove, a circular through hole is provided on one side of the movable groove, a jack is provided on one side of the movable block, and a fixing piece is provided on one side of the fixed mainboard, so as to facilitate the installation of the cavity filter and reduce the occupied area of ​​the installation, thereby increasing the flexibility of the cavity filter, facilitating the flexible use of the cavity filter, and greatly increasing the practicality of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a cavity filter. Background Art

[0002] The filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter out the frequency point of a specific frequency in the power line or the frequency outside the frequency point to obtain a power signal of a specific frequency.

[0003] When the existing cavity filters available on the market are used, they need to be fixed at the installation position by means of a mounting plate. Fixing by the mounting plate will also increase the occupied area, which is not conducive to the flexible use of the cavity filter. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides the following technical solutions:

[0005] A cavity filter comprises a filter and a fixed mainboard, wherein movable grooves are provided on both sides of the fixed mainboard, a mounting plate is provided in the movable groove, two groups of mounting holes are provided on the mounting plate, a handle is provided on one side of the mounting plate, and a limit assembly is provided on the fixed mainboard.

[0006] As an improvement of the above technical solution, the limiting assembly includes a movable groove opened on one side of the movable groove, a movable block is provided in the movable groove, a circular through hole is opened on one side of the movable groove, a socket is opened on one side of the movable block, and a fixing piece is provided on one side of the fixed mainboard.

[0007] As an improvement of the above technical solution, the fixing member includes an insertion rod arranged in the circular through hole, one end of the insertion rod extends into the insertion hole, the other end of the insertion rod is provided with a connecting plate, and a spring is sleeved on the insertion rod.

[0008] As an improvement of the above technical solution, a guide groove is opened on one side of the movable groove, a guide block is arranged in the guide groove, and one end of the guide block is connected to one side of the mounting plate.

[0009] As an improvement of the above technical solution, a sliding rod is provided on the guide block, and two ends of the sliding rod are connected to two sides of the guide groove.

[0010] As an improvement of the above technical solution, external connectors are provided on both sides of the filter.

[0011] The beneficial effects of the utility model are as follows: when the filter needs to be installed, the limiting effect of the mounting plate is first released by the limiting assembly, and then the mounting plate is pulled out of the movable groove by the handle, and the mounting hole is penetrated by bolts to fix it at the place of use, thereby facilitating the installation of the cavity filter and reducing the occupied area of ​​the installation, thereby increasing the flexibility of the cavity filter and facilitating the flexible use of the cavity filter, thereby greatly increasing the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of a cavity filter;

[0013] Figure 2 A cavity filter Figure 1 A schematic cross-sectional structure diagram of ;

[0014] Figure 3 A cavity filter Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0015] Figure 4 A cavity filter Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0016] Figure numerals: 1. filter; 2. fixed main board; 3. movable slot; 4. mounting plate; 5. mounting hole; 6. handle; 7. guide slot; 8. guide block; 9. slide rod; 10. movable slot; 11. movable block; 12. jack; 13. plug rod; 14. spring; 15. connecting plate; 16. external connector. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0018] See attached Figure 1-4 As shown, in order to solve the above problems, the utility model provides a cavity filter technical solution:

[0019] A cavity filter comprises a filter 1 and a fixed mainboard 2. The fixed mainboard 2 has movable grooves 3 on both sides. A mounting plate 4 is arranged in the movable groove 3. The mounting plate 4 has two groups of mounting holes 5. A handle 6 is arranged on one side of the mounting plate 4. A limit assembly is arranged on the fixed mainboard 2.

[0020] When the filter 1 needs to be installed, first release the limiting effect of the mounting plate 4 through the limiting assembly, then pull the mounting plate 4 out of the movable groove 3 through the handle 6, and fix it at the place of use with the bolts penetrating the mounting hole 5, so as to facilitate the installation of the cavity filter and reduce the occupied area of ​​the installation, thereby increasing the flexibility of the cavity filter and facilitating the flexible use of the cavity filter, thereby greatly increasing the practicality of the equipment.

[0021] Among them, the limiting component includes a movable groove 10 opened on one side of the movable groove 3, a movable block 11 is arranged in the movable groove 10, a circular through hole is opened on one side of the movable groove 10, a socket 12 is opened on one side of the movable block 11, and a fixing piece is arranged on one side of the fixed mainboard 2.

[0022] The movable block 11 is fixed in the movable groove 10 through the fixing piece, and the mounting plate 4 is fixed in the movable groove 3 through the movable block 11, so as to limit the mounting plate 4, thereby achieving a good limiting effect, thereby preventing the mounting plate 4 from sliding out of the movable groove 3, thereby facilitating the operation of the equipment.

[0023] In order to facilitate understanding of the technical solution of the present application, the fixing member is further explained.

[0024] The fixing part includes an insertion rod 13 arranged in a circular through hole, one end of the insertion rod 13 extends into the insertion hole 12, and a connecting plate 15 is provided at the other end of the insertion rod 13. A spring 14 is sleeved on the insertion rod 13, and pressure is generated by the spring 14, and the connecting plate 15 cooperates to transfer the pressure to the insertion rod 13, so that one end of the insertion rod 13 is fixed in the insertion hole 12, thereby fixing the movable block 11 in the movable groove 10, thereby achieving a good limiting effect.

[0025] A guide groove 7 is opened on one side of the movable groove 3, and a guide block 8 is arranged in the guide groove 7. One end of the guide block 8 is connected to one side of the mounting plate 4. The guide groove 7 cooperates with the guide block 8 to facilitate the movement of the mounting plate 4 in the movable groove 3, thereby facilitating the operation of the equipment and increasing the convenience of the equipment.

[0026] A slide bar 9 is provided on the guide block 8, and both ends of the slide bar 9 are connected to both sides of the guide groove 7. The slide bar 9 is provided to facilitate the movement of the guide block 8, thereby facilitating the movement of the mounting plate 4, thereby facilitating the operation of the equipment.

[0027] External connectors 16 are provided on both sides of the filter 1, and the devices are connected via the external connectors 16. The above embodiments are only used to illustrate the technical solution of the utility model, but not to limit it.

Claims

1. A cavity filter, characterized in that: include: A filter (1) and a fixed mainboard (2), wherein movable grooves (3) are provided on both sides of the fixed mainboard (2), a mounting plate (4) is provided in the movable groove (3), two groups of mounting holes (5) are provided on the mounting plate (4), a handle (6) is provided on one side of the mounting plate (4), and a limit assembly is provided on the fixed mainboard (2).

2. A cavity filter according to claim 1, characterized in that: The limit assembly comprises a movable groove (10) provided on one side of the movable groove (3), a movable block (11) being arranged in the movable groove (10), a circular through hole being provided on one side of the movable groove (10), a plug hole (12) being provided on one side of the movable block (11), and a fixing piece being provided on one side of the fixed main board (2).

3. A cavity filter according to claim 2, characterized in that: The fixing member comprises an insertion rod (13) arranged in the circular through hole, one end of the insertion rod (13) extends into the insertion hole (12), the other end of the insertion rod (13) is provided with a connecting plate (15), and a spring (14) is sleeved on the insertion rod (13).

4. A cavity filter according to claim 2, characterized in that: A guide groove (7) is provided on one side of the movable groove (3), a guide block (8) is provided in the guide groove (7), and one end of the guide block (8) is connected to one side of the mounting plate (4).

5. A cavity filter according to claim 4, characterized in that: The guide block (8) is provided with a slide bar (9), and the two ends of the slide bar (9) are connected to the two sides of the guide groove (7).

6. A cavity filter according to claim 1, characterized in that: External connectors (16) are provided on both sides of the filter (1).

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