Waveguide-adjustable filter

Abstract

The utility model discloses an adjustable waveguide filter, which relates to the technical field of filters, and comprises a filter unit and an adjusting and limiting assembly, the lower end of the side edge of the filter unit is horizontally provided with a connecting screw rod, the upper end of one side of the filter unit is provided with a protective cover group, and the left side and the right side of the bottom of the filter unit are connected with connecting frame groups; the adjusting and limiting assembly is installed on the top of the filter unit. According to the filter with the adjustable waveguide, by using the adjusting limiting assembly, the waveguide of a filter unit can be adjusted within a certain range, and meanwhile, the structure can be fixed, so that the situation that after adjustment, due to factors such as mistaken touch of a filtering adjusting button, adjustment deviation occurs, and the filtering effect needed by sound operation is achieved is avoided; and the protective cover group can further protect the whole adjusting and limiting assembly to prevent the adjusting and limiting assembly from structural influence and even damage caused by external factors, so that stable operation of the whole device is ensured.

Description

Technical Field

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

[0002] A filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter out a specific frequency point in the power line or frequencies other than the frequency point to obtain a power signal of a specific frequency, or eliminate a power signal after a specific frequency. The filter is a frequency selection device that allows a specific frequency component in the signal to pass through while greatly attenuating other frequency components. The frequency selection function of the filter can be used to filter out interference noise or perform spectrum analysis. In other words, any device or system that can allow a specific frequency component in the signal to pass through while greatly attenuating or suppressing other frequency components is called a filter.

[0003] General filters can eliminate power signals of specific frequencies. When they need to be adjusted within a certain range, they cannot be adjusted on their own structure. Even if there are adjustment components, the adjustment structure is easily affected by external factors, that is, it is easy to make accidental touches, causing the adjustment state to change, and then changing the adjusted filter frequency band.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an adjustable waveguide filter is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a filter with an adjustable waveguide to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter of an adjustable waveguide, comprising a filter unit and an adjustment limit assembly, wherein a connecting screw is horizontally arranged at the lower end of the side of the filter unit, and a protective cover assembly is installed at the upper end of one side of the filter unit, and connecting frame assemblies are connected to the left and right sides of the bottom of the filter unit, and the adjustment limit assembly is installed on the top of the filter unit, and the adjustment limit assembly comprises a filter adjustment button, a connecting rod, a guide tube, an adjustment screw and a limit frame, a connecting rod is horizontally installed in the middle section of the filter adjustment button, and the end of the connecting rod away from the filter adjustment button is vertically connected to the guide tube, and the adjusting screw is vertically installed inside the guide tube, and the limit frame is installed at the bottom of the adjusting screw.

[0007] Furthermore, the filter unit includes a filter device, an adjustment slot, a display screen and a docking pile. The top surface of the filter device is provided with an adjustment slot, and a display screen is arranged above the adjustment slot. The bottom left and right sides of the filter device are provided with docking piles.

[0008] Furthermore, the adjustment groove is arranged in an arc-shaped structure, and the adjustment groove and the filter adjustment knob are located at the same center of a circle, and the docking pile is fixedly arranged symmetrically with the vertical central axis of the filter device as the symmetry axis.

[0009] Furthermore, the protective cover assembly includes an adjusting rod, a damping shaft and a protective cover. The damping shaft is provided at the upper and lower ends of the adjusting rod, and the upper end of the adjusting rod is connected to the protective cover via the damping shaft.

[0010] Furthermore, the damping shaft is vertically symmetrically arranged with the horizontal center axis of the adjusting rod as the symmetry axis, and the damping shaft is bilaterally symmetrically arranged with the vertical center axis of the adjusting rod as the symmetry axis, and the lower end of the adjusting rod is connected to the filter unit through the damping shaft.

[0011] Furthermore, the connecting frame group includes a supporting frame, a docking tenon and a fixing bolt. The top of the supporting frame close to the filter unit is provided with a docking tenon, and the side of the supporting frame away from the filter unit is vertically installed with a fixing bolt.

[0012] Furthermore, the outer surface structure of the butt joint tenon matches the inner surface structure of the butt joint pile, and the butt joint tenon and the fixing bolt are threadedly connected to each other.

[0013] Furthermore, the guide tube is slidably connected to the adjusting groove, and the adjusting screw and the guide tube are threadedly connected to each other.

[0014] The utility model provides a filter with adjustable waveguide, which has the following beneficial effects:

[0015] 1. The utility model sets a filter adjustment knob on the top of the filter unit, and connects a guide tube on one side thereof by a connecting rod, and makes the guide tube slide and be installed in the adjustment groove provided on the surface of the filter device. Therefore, when the filter adjustment knob is axially rotated, the guide tube is driven by the connecting rod to move along the structure of the adjustment groove, and vice versa. Therefore, when the filter adjustment knob is turned to a certain position, the adjustment screw inside the guide tube can be vertically axially screwed, and the limiting frame at the bottom of the adjusting screw is gradually approached and finally abutted against the inner top of the filter device, thereby forming a structural fixation, and then the filter adjustment knob is structurally limited, so as to avoid direct contact of the filter adjustment knob with external factors to the greatest extent, resulting in the occurrence of misadjustment of the filter adjustment knob, thereby affecting the normal operation of the entire filter unit.

[0016] 2. The utility model utilizes a protective cover group arranged on one side of the filter device, wherein the protective cover can be adjusted with the filter device as needed to achieve arbitrary structural activity of opening and closing through the telescopic adjustability of the adjusting rod structure and the structural rotation provided by the damping shafts arranged at the upper and lower ends thereof, so that the protective cover can be placed on the top of the filter device to effectively shield the adjustment limit assembly from the outside, thereby preventing accidents and other factors from affecting the filter adjustment knob, thereby improving the protection of the structural parts.

[0017] 3. The utility model provides a detachable connecting frame group at the bottom of the filter unit, so that on the one hand, a sliding arrangement structure between the docking tenon and the docking pile can be used to realize a structure for quick disassembly and assembly, so as to facilitate the selection of assembly or not according to different use needs, thereby improving the use flexibility between the structures. On the other hand, the structure of the connecting frame group can be used to connect and fix the entire filter unit with external circuit structures and other devices, and can also play a role in structural support and lifting, thereby avoiding direct contact between the bottom of the entire filter unit and the installation position, resulting in heat dissipation effects. In addition, it also avoids uneven surfaces or structural interference at the installation position, which affect the overall setting needs of the filter unit. The use of the above structure can improve the structural stability and use flexibility of the entire device during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a main body structure of an adjustable waveguide filter of the utility model from a top view;

[0019] Figure 2 This is a schematic side view of the main body structure of a filter with an adjustable waveguide according to the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of a connecting frame assembly part of an adjustable waveguide filter of the utility model;

[0021] Figure 4 The utility model is a schematic diagram of a three-dimensional structure of a filter unit and an adjustment and limiting component connected to an adjustable waveguide filter.

[0022] In the figure: 1. filter unit; 101. filter device; 102. adjustment slot; 103. display screen; 104. docking pile; 2. connecting screw; 3. protective cover assembly; 301. adjustment rod; 302. damping shaft; 303. protective cover; 4. connecting frame assembly; 401. support frame; 402. docking tenon; 403. fixing bolt; 5. adjustment limit assembly; 501. filter adjustment knob; 502. connecting rod; 503. guide tube; 504. adjustment screw; 505. limit frame. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figures 1 to 4 As shown, a filter of an adjustable waveguide comprises a filter unit 1 and an adjustment limit assembly 5, a connecting screw 2 is horizontally arranged at the lower end of the side of the filter unit 1, and a protective cover assembly 3 is installed at the upper end of one side of the filter unit 1, and the left and right sides of the bottom of the filter unit 1 are connected with a connecting frame assembly 4, and the adjustment limit assembly 5 is installed on the top of the filter unit 1, and the filter unit 1 comprises a filter device 101, an adjustment slot 102, a display screen 103 and a docking pile 104, an adjustment slot 102 is opened on the top surface of the filter device 101, and a display screen 103 is arranged above the adjustment slot 102, and docking piles 104 are installed on the left and right sides of the bottom of the filter device 101, the adjustment slot 102 is arranged in an arc-shaped structure, and the adjustment slot 102 and the filter adjustment button 501 are at the same center of the circle, and the docking pile 104 is fixedly arranged symmetrically with the vertical central axis of the filter device 101 as the symmetry axis, and the protective cover assembly 3 comprises an adjustment rod 301, a damping shaft 302 and a protective cover assembly 3. The protective cover 303, the upper and lower ends of the adjusting rod 301 are provided with a damping shaft 302, and the upper end of the adjusting rod 301 is connected to the protective cover 303 through the damping shaft 302, the damping shaft 302 is symmetrically arranged up and down with the horizontal central axis of the adjusting rod 301 as the symmetry axis, and the damping shaft 302 is symmetrically arranged left and right with the vertical central axis of the adjusting rod 301 as the symmetry axis, and the lower end of the adjusting rod 301 is connected to the filter unit 1 through the damping shaft 302, and a protective cover group 3 is arranged on one side of the filtering device 101, wherein the protective cover group 3 is arranged on one side of the filtering device 101, wherein the structural telescopic adjustability of the adjusting rod 301 itself and the structural rotation provided by the damping shaft 302 itself arranged at its upper and lower ends, the protective cover 303 can be adjusted with the filtering device 101 as needed to realize the structural activity of arbitrary opening and closing, so that the protective cover 303 can be covered on the top of the filtering device 101, so that the adjustment limit component 5 can be effectively structurally shielded from the outside.

[0025] The connecting frame group 4 includes a support frame 401, a docking tenon 402 and a fixing bolt 403. The top of the support frame 401 close to the filter unit 1 is provided with a docking tenon 402, and the side of the support frame 401 away from the filter unit 1 is vertically installed with a fixing bolt 403. The outer surface structure of the docking tenon 402 matches the inner surface structure of the docking pile 104, and the docking tenon 402 and the fixing bolt 403 are threadedly connected to each other. Through the sliding insertion structure between the docking tenon 402 and the docking pile 104, a structure for quick disassembly and assembly can be achieved, so that assembly or not can be selected according to different usage needs. On the other hand, by using the structure of the connecting frame group 4, the entire filter unit 1 can be connected and fixed to an external line structure and other devices, and it can also play a role of structural support and lifting. In addition, it also avoids uneven surface or structural interference at the installation position.

[0026] The adjustment and limiting assembly 5 includes a filter adjustment button 501, a connecting rod 502, a guide tube 503, an adjustment screw 504 and a limiting frame 505. The middle section of the filter adjustment button 501 is horizontally installed with a connecting rod 502, and the end of the connecting rod 502 away from the filter adjustment button 501 is vertically connected with the guide tube 503, and the inside of the guide tube 503 is vertically installed with an adjustment screw 504, and the bottom of the adjustment screw 504 is installed with a limiting frame 505, the guide tube 503 is slidably connected to the adjustment slot 102, and the adjustment screw 504 and the guide tube 503 are threadedly connected to each other. By arranging and installing the filter adjustment button 501 on the top of the filter unit 1, and at the same time using one side thereof The guide tube 503 is connected with a connecting rod 502, and the guide tube 503 is slidably installed in the adjustment groove 102 opened on the surface of the filter device 101. Therefore, when the filter adjustment knob 501 is axially rotated, the guide tube 503 is driven by the connecting rod 502 to move along the structure of the adjustment groove 102, and vice versa. Therefore, after the filter adjustment knob 501 is turned to a certain position, the adjustment screw 504 inside the guide tube 503 can be vertically axially screwed, and the limiting frame 505 at the bottom of the adjusting screw 504 gradually approaches and finally rests on the internal top of the filter device 101, thereby forming a structural fixation, and then the filter adjustment knob 501 is structurally limited.

[0027] In summary, if Figures 1 to 4 As shown, when the adjustable waveguide filter is used, when it is necessary to adjust the filtering and elimination of the power signal of a certain frequency band, the protective cover 303 connected to the upper end of the adjusting rod 301 is structurally flipped by adjusting the rotation of the damping shaft 302 itself arranged at the upper and lower ends of the adjusting rod 301, so as to open the protective cover group 3 from the top surface of the filter unit 1;

[0028] Then, the adjusting screw 504 inside the guide tube 503 is axially screwed in the vertical direction to screw the adjusting screw 504 into the filter unit 1, thereby increasing the contact distance between the limit frame 505 at the bottom of the adjusting screw 504 and the filter unit 1. At this time, the filter device 101 can be set and adjusted by rotating the filter adjustment knob 501, or the guide tube 503 can be moved along the inside of the adjustment slot 102, and the filter adjustment knob 501 connected thereto can be rotated by the driving of the connecting rod 502, thereby adjusting the waveguide inside the filter device 101 at this time.

[0029] After the adjustment is completed, the adjusting screw 504 inside the guide tube 503 is rotated in the opposite direction, and the limiting frame 505 at the bottom of the adjusting screw 504 is pressed against the top of the inner wall of the filter device 101, so that the entire adjusting limiting assembly 5 and the filter unit 1 are structurally fixed to prevent the filter adjustment knob 501 from being accidentally turned, and then the protective cover assembly 3 is re-covered on the top surface of the filter unit 1;

[0030] Afterwards, as needed, the docking tenon 402 on one side of the support frame 401 is slidably inserted into the docking pile 104 at the bottom of the filter device 101 in the horizontal direction, and the entire device is fixed on the installation table through the fixing bolt 403 at one end of the support frame 401. Finally, it can be connected to the external circuit through the connecting screws 2 set on the left and right sides of the filter unit 1 to complete the structural installation and bring into play.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A filter with an adjustable waveguide, comprising a filter unit (1) and an adjustable limiter assembly (5), characterized in that: A connecting screw (2) is horizontally arranged at the lower end of the side of the filter unit (1), and a protective cover group (3) is installed at the upper end of one side of the filter unit (1), and the left and right sides of the bottom of the filter unit (1) are connected to the connecting frame group (4), and the adjusting limit assembly (5) is installed on the top of the filter unit (1), and the adjusting limit assembly (5) comprises a filter adjustment button (501), a connecting rod (502), a guide tube (503), an adjusting screw (504) and a limit frame (505), the middle section of the filter adjustment button (501) is horizontally installed with the connecting rod (502), and the end of the connecting rod (502) away from the filter adjustment button (501) is vertically connected with the guide tube (503), and the inside of the guide tube (503) is vertically installed with the adjusting screw (504), and the bottom of the adjusting screw (504) is installed with the limit frame (505).

2. The tunable waveguide filter according to claim 1, characterized in that: The filter unit (1) comprises a filter device (101), an adjustment slot (102), a display screen (103) and a docking post (104); the adjustment slot (102) is provided on the top surface of the filter device (101), and a display screen (103) is arranged above the adjustment slot (102); and docking posts (104) are installed on the left and right sides of the bottom of the filter device (101).

3. The tunable waveguide filter according to claim 2, characterized in that: The adjustment groove (102) is arranged in an arc-shaped structure, and the adjustment groove (102) and the filter adjustment knob (501) are both located at the same center of a circle, and the docking pile (104) is fixedly arranged symmetrically with the vertical central axis of the filter device (101) as the symmetry axis.

4. The tunable waveguide filter according to claim 1, characterized in that: The protective cover assembly (3) comprises an adjusting rod (301), a damping shaft (302) and a protective cover (303); the damping shaft (302) is arranged at the upper and lower ends of the adjusting rod (301), and the upper end of the adjusting rod (301) is connected to the protective cover (303) via the damping shaft (302).

5. The tunable waveguide filter according to claim 4, characterized in that: The damping shaft (302) is vertically symmetrically arranged with the horizontal center axis of the adjustment rod (301) as the symmetry axis, and the damping shaft (302) is bilaterally symmetrically arranged with the vertical center axis of the adjustment rod (301) as the symmetry axis, and the lower end of the adjustment rod (301) is connected to the filter unit (1) via the damping shaft (302).

6. The tunable waveguide filter according to claim 2, characterized in that: The connecting frame assembly (4) comprises a supporting frame (401), a butt joint (402) and a fixing bolt (403); the butt joint (402) is arranged on the top of a side of the supporting frame (401) close to the filter unit (1), and the fixing bolt (403) is vertically installed on a side of the supporting frame (401) away from the filter unit (1).

7. The tunable waveguide filter according to claim 6, characterized in that: The outer surface structure of the butt joint tenon (402) matches the inner surface structure of the butt joint pile (104), and the butt joint tenon (402) and the fixing bolt (403) are threadedly connected to each other.

8. The tunable waveguide filter according to claim 2, characterized in that: The guide tube (503) is slidably connected to the adjustment groove (102), and the adjustment screw rod (504) and the guide tube (503) are threadedly connected to each other.

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