A filter debris removal device

By combining components such as a feeder, air nozzle assembly, and pneumatic vibrator, efficient cleaning of debris inside the filter cavity is achieved, solving the problems of low cleaning efficiency and high cost in existing technologies, and meeting the intermodulation index requirements of the filter.

CN224673383UActive Publication Date: 2026-08-25NANNING GUOREN RADIO FREQUENCY COMM CO LTD +2
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Patent Information

Application Number
CN202521743760.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-15
Publication Date
2026-08-25
Estimated Expiration
2035-08-15

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficiently cleaning debris inside filter cavities, which affects the intermodulation performance of the filter. Furthermore, conventional cleaning methods are inefficient, costly, or cumbersome.

Method used

The system employs components such as a suction device, air nozzle assembly, swing assembly, and pneumatic vibrator to clean debris from the filter cavity through independent blowing, suction, and vibration methods. Combined with motor control and cylinder fastening, it achieves efficient cleaning.

Benefits of technology

It improves the cleaning efficiency of the filter cavity, ensures the cleaning effect, meets the strict intermodulation index requirements, and reduces the complexity and cost of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a filter chip removing device for removing chips of the tuning cavity of filter, including suction material ware, scrap frame, swing assembly, motor and air nozzle group, the central pivot of motor makes to and fro motion of left and right swing, swing assembly includes swing support and swing disc connected to swing support, swing disc is provided with the accommodation cavity, and air nozzle group sets up in accommodation cavity, filter sets up to the top of accommodation cavity, every air nozzle of air nozzle group blows independently, every air nozzle of air nozzle group is provided with the baffle plate, and the baffle plate is used for preventing the chip from falling into the air nozzle, and the motor is connected to swing disc through the central pivot, the utility model can promote the cleaning efficiency of the tuning cavity of filter, and can also guarantee the cleaning effect.
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Description

Technical Field

[0001] This utility model relates to the field of chip removal, and in particular to a chip removal device for filters. Background Technology

[0002] Filters typically employ a threaded rod that engages with a threaded hole on a cover plate, extending into the filter cavity. Frequency tuning is achieved by rotating the threaded rod within the threaded hole. With the development of radio frequency communication technology, base stations operate at higher frequencies, placing more stringent requirements on the intermodulation performance of filters. The primary factor influencing the filter's intermodulation performance is debris that falls into the filter cavity during the threaded rod tuning process. Therefore, it is necessary to clean the debris from the filter cavity to meet the stringent intermodulation performance requirements.

[0003] Conventional chip removal methods involve manually blowing air into the cavity using an air gun. However, this method suffers from scattered airflow and insufficient air pressure, resulting in incomplete removal of debris. Other methods, while effective, are costly or cumbersome: dry ice cleaning, which achieves some cleaning effect, is expensive and noisy; or cleaning by removing the filter cover, which is also tedious, time-consuming, and inefficient, unsuitable for large-scale operations. Therefore, a chip removal solution is needed that not only improves the cleaning efficiency of the filter cavity but also ensures effective cleaning. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical problems and provide a chip removal device for efficiently cleaning cavity debris of a filter.

[0005] This utility model provides a filter chip removal device for removing chips from the tuning chamber of a filter. It includes a feeder, a chip frame, a swing assembly, a motor, and an air nozzle assembly. The motor's central shaft performs a reciprocating swing motion. The swing assembly includes a swing bracket and a swing disk connected to the swing bracket. The swing disk has a receiving cavity, and the air nozzle assembly is disposed within the receiving cavity. The filter is positioned at the top of the receiving cavity. Each air nozzle in the air nozzle assembly blows air independently. A baffle is provided above each air nozzle to prevent chips from falling into the nozzle. The motor is connected to the swing disk via a central shaft.

[0006] Furthermore, it also includes a first cylinder and a pneumatic vibrator, the first cylinder being connected to the air nozzle; the first cylinder being used to fasten the air nozzle and control the extension and retraction of the air nozzle; the pneumatic vibrator contacting the filter and vibrating to shake off debris from the filter.

[0007] Furthermore, it also includes a limiting block and a second cylinder. The limiting block is disposed around the filter to restrict the movement of the filter; the second cylinder is used to fasten the filter.

[0008] Furthermore, the filter is provided with several through holes, and each through hole is provided in a one-to-one correspondence with the air nozzle of the air nozzle assembly.

[0009] Furthermore, each nozzle in the nozzle assembly is equipped with a corresponding solenoid valve; the solenoid valve is used to control the energization and de-energization of the nozzle to start and stop blowing air.

[0010] Furthermore, it also includes a frame and a support plate disposed on the frame, the support plate dividing the inner cavity of the frame into a first cavity and a second cavity, the feeder and the debris frame being disposed in the first cavity, and the swing assembly, the motor and the air nozzle assembly being disposed in the second cavity.

[0011] Furthermore, it also includes a controller and a touch screen, the touch screen being connected to the controller, the controller being connected to a motor, and the motor controlling the rotation angle, rotation speed, and rotation mode of the oscillating disk.

[0012] Furthermore, the suction device is provided with an air suction pipe and a suction chamber; the suction chamber is provided with a positive pressure hole and a negative pressure hole; the negative pressure hole has a vacuum suction force; one end of the air suction pipe is connected to the negative pressure hole, and the other end is connected to the receiving cavity of the swing disk.

[0013] Furthermore, the planar dimensions of the oscillating disk are larger than the planar dimensions of the filter.

[0014] Compared with the prior art, the filter chip removal device of this utility model can improve the cleaning efficiency of the filter tuning cavity and ensure the cleaning effect. Attached Figure Description

[0015] Figure 1 A perspective view of the filter chip removal device provided in an embodiment of this utility model;

[0016] Figure 2 yes Figure 1 The diagram shows a three-dimensional representation of the filter chip removal device removing part of the housing.

[0017] Figure 3 yes Figure 1 The diagram shows the filter chip removal device with part of the housing removed, revealing the oscillating disk, and the filter placed on the oscillating disk.

[0018] Figure 4 yes Figure 1 The diagram shown is a three-dimensional representation of the filter chip removal device after all the housing has been removed.

[0019] Figure 5 yes Figure 4 The diagram shown is a schematic image from another angle after the filter chip removal device has removed all the casing.

[0020] Figure 6 yes Figure 3 The filter chip removal device shown removes all the housing, revealing the filter in its operational state.

[0021] Figure 7 This is a schematic diagram showing the connection status of the swing bracket, swing disk, air nozzle assembly, and filter of the filter chip removal device shown in this embodiment of the utility model.

[0022] Figure 8 This is a schematic diagram showing the state of the air nozzle assembly and the first cylinder of the filter chip removal device of this utility model placed in the cavity of the swing disk;

[0023] Figure 9 This is a schematic diagram showing the connection status of the nozzle and the first cylinder of the nozzle assembly of the filter chip removal device of this utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The filter chip removal device 100 provided by this utility model is used to remove chips from the tuning cavity of the filter 500. The filter chip removal device 100 includes a feeder 1, a chip box 2, a swing assembly 3, a motor 5, and an air nozzle assembly 6. The feeder 1 is connected to the chip box 2; the motor 5 is connected to the swing assembly 3.

[0026] The swing assembly 3 includes a swing bracket 31 and a swing disk 32 connected to the swing bracket 31. The swing disk 32 has a receiving cavity for housing the air nozzle assembly 6. Specifically, a motor 5 is mounted on the swing bracket 31, and the central shaft of the motor 5 is connected to the swing disk 32, controlling the swing disk 32 to perform a reciprocating motion of left and right swinging. It should be noted that the motor 5 in this embodiment is a stepper motor, which is controlled to achieve the reciprocating motion of its shaft swinging left and right. Preferably, the central shaft of the motor 5 is connected to the central region of the swing disk 32, which allows for more accurate control of the left and right swing angles of each region of the swing disk 32.

[0027] Preferably, each nozzle 61 of the nozzle assembly 6 can blow air independently; thus, it is possible to selectively open or close one or more nozzles 61 for independent blowing; the blowing duration of each nozzle 61 can also be set independently; or sequential blowing or inhalation can be achieved for each nozzle 61 of the nozzle assembly 6. Understandably, it is also possible for each nozzle 61 of the nozzle assembly 6 to blow air simultaneously or asynchronously. Simultaneously, a baffle 6A is provided above each blowing nozzle 61 to prevent debris from falling into the nozzle 61 that is not extending to blow air. Preferably, the nozzles 61 of the nozzle assembly 6 are made of aluminum alloy to ensure that the nozzles 61 are pressure-resistant, do not deform, and are durable. The air blown by the nozzle assembly 6 comes from the air storage tank 7. Each nozzle 61 in the nozzle assembly 6 is correspondingly equipped with a solenoid valve 8. The solenoid valve 8 controls the energization and de-energization of the nozzle 61 to start and stop blowing air. Specifically, the nozzles 61 of the nozzle assembly 6 are connected to the solenoid valve 8 through a blowing pipe.

[0028] Please see Figure 2 , Figure 7 , Figure 8 and Figure 9 In this embodiment, each nozzle 61 of the nozzle assembly 6 is correspondingly provided with a first cylinder 4. The first cylinder 4 is used to support and fasten the nozzle 61 to fix it into the receiving cavity of the swing disk 32. Preferably, the first cylinder 4 is a miniature single-rod cylinder; each miniature single-rod cylinder is connected to a nozzle 61. When the miniature single-rod cylinder moves, the nozzle 61 can retract. For example, when the nozzle 61 is blowing air, the first cylinder 4 controls the nozzle 61 to extend out of the receiving cavity of the swing disk 32, so that the nozzle 61 extends into the air inlet of the filter 500; when the nozzle 61 is not blowing air, the first cylinder 4 controls the nozzle 61 to retract back into the receiving cavity of the swing disk 32. Specifically, the filter 500 is provided with a number of holes so that the nozzles 61 of the nozzle assembly 6 are arranged in accordance with the holes.

[0029] The suction device 1 is equipped with an air suction pipe and a suction chamber. The suction chamber is equipped with a positive pressure hole and a negative pressure hole. The positive pressure hole is connected to a positive pressure, which causes the negative pressure hole to generate a vacuum suction force. One end of the air suction pipe is connected to the negative pressure hole; the other end is connected to the receiving cavity of the swing disk 32. The side of the filter 500 to be de-dusted faces the receiving cavity and is placed directly above the receiving cavity; the air nozzles 61 of the air nozzle assembly 6 blow air into the area of ​​the filter 500 to be de-dusted, and the blown debris falls into the receiving cavity of the swing disk 32; the debris in the receiving cavity is sucked away by the air suction pipe connected to the negative pressure hole; then the suction device 11 transfers the debris sucked away from the receiving cavity into the debris frame 2. Preferably, the planar dimension of the swing disk 32 is larger than the planar dimension of the filter 500; so that the air nozzles 61 of the air nozzle assembly 6 can be distributed to correspond to each vent of the filter 500; and the dust and debris cleaning at each position of the tuning cavity of the filter is more thorough.

[0030] Please see Figure 2 , Figure 3 and Figure 4 Furthermore, the filter chip removal device 100 also includes a pneumatic vibrator 9, which contacts the filter 500 and is used to shake off dust and debris from the tuning chamber of the filter 500; the pneumatic vibrator 9 is fixed by screws. Understandably, the pneumatic vibrator 9 contacts the outer wall of the filter's tuning chamber, enabling it to more effectively shake off dust and debris from the chamber. The gas supplied to the pneumatic vibrator 9 comes from an external air supply; for example, it is supplied to each pneumatic vibrator 9 of the filter chip removal device 100 through a unified workshop air supply. Preferably, the maximum vibration frequency of the pneumatic vibrator 9 is 50Hz, which effectively shakes off debris and ensures the stability of the pneumatic vibrator 9.

[0031] Furthermore, a locking assembly for fixing the filter 500 is also provided at the top of the receiving cavity of the swing disk 32. This locking assembly includes a limiting block 30 and a second cylinder 40. The limiting block 30 is disposed around the filter 500, i.e., at the front, back, left, and right sides of the filter 500, to restrict the movement of the filter 500. Preferably, the reserved distance between the limiting block 30 and the filter 500 is about 1 mm; thus, not only is the movement of the filter 500 restricted, but the filter 500 can also be easily installed and removed. The second cylinder 40 is used to press the filter 500. Thus, when the motor 5 drives the swing disk 32 to perform a reciprocating left-right swinging motion, the limiting block 30 prevents the filter 500 from shaking in the swing disk 32; and the second cylinder 40 presses the filter 500 to prevent the filter 500 from separating from the swing disk 32.

[0032] Specifically, the filter has several through holes (not shown in the figure), each corresponding to a nozzle 61 of the nozzle group 6. These through holes are the air inlets of the filter 500. That is, each nozzle 61 can blow air into the tuning chamber of the filter 500 through a corresponding through hole. It can be understood that the through holes of the filter 500 are located on the cover at one end of its tuning chamber; that is, the cover of the filter 500 is attached to the nozzle 61 and the swing disk 32.

[0033] Please see Figure 1 and Figure 2 In this embodiment, the filter chip removal device 100 further includes a frame 11 and a support plate 13 disposed on the frame 11. The frame 11 is divided into a first cavity and a second cavity by the support plate 13. The suction device 1 and the chip frame 2 are disposed in the first cavity, while the swing assembly 3, the motor 5, and the air nozzle assembly 6 are disposed in the second cavity. Both the blowing pipe and the suction pipe pass through the support plate 13 between the first cavity and the second cavity. The frame 1 can reduce the noise of the air nozzle assembly 6 blowing air into the tuning cavity of the filter 500.

[0034] Furthermore, the filter chip removal device 100 also includes a controller and a touch screen 20. The touch screen 20 is connected to the controller, which in turn is connected to the motor 5. Commands to touch the touch screen 20 are sent to the controller, which then controls the motor 5 to move accordingly. The controller can control the rotation angle, speed, mode, and duration of the oscillating disk 32 via the motor 5. For example, the controller can control the motor 5 to instruct it to drive the oscillating disk 32 to perform a back-and-forth reciprocating motion with a rotation angle ranging from 0 to 180 degrees.

[0035] The above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, such as combining different features in various embodiments, and these all fall within the protection scope of the present invention.

Claims

1. A filter chip removal device for removing chips from the tuning cavity of a filter (500), characterized in that, The device includes a feeder (1), a debris box (2), a swing assembly (3), a motor (5), and a nozzle assembly (6). The central shaft of the motor (5) performs a reciprocating motion of swinging left and right. The swing assembly (3) includes a swing bracket (31) and a swing disk (32) connected to the swing bracket. The swing disk (32) is provided with a receiving cavity, and the nozzle assembly (6) is disposed in the receiving cavity. The filter (500) is disposed at the top of the receiving cavity. Each nozzle (61) of the nozzle assembly (6) blows air independently. A baffle (6A) is provided above each nozzle (61) of the nozzle assembly (6) to prevent debris from falling into the nozzle (61). The motor (5) is connected to the swing disk (32) via a central shaft.

2. The filter chip removal device according to claim 1, characterized in that, It also includes a first cylinder (4), which is connected to the nozzle (61); the first cylinder (4) is used to fasten the nozzle (61) and control the extension and retraction of the nozzle (61).

3. The filter chip removal device according to claim 1, characterized in that, It also includes a pneumatic vibrator (9) that contacts the filter (500) and vibrates to dislodge debris from the filter (500).

4. The filter chip removal device according to claim 1, characterized in that, It also includes a limiting block (30) and a second cylinder (40), the limiting block (30) being disposed around the filter (500) to restrict the movement of the filter (500); the second cylinder (40) being used to fasten the filter (500).

5. The filter chip removal device according to claim 1, characterized in that, The filter is provided with several through holes, and the through holes are provided one-to-one with the air nozzles (61) of the air nozzle group (6).

6. The filter chip removal device according to claim 1, characterized in that, Each nozzle (61) in the nozzle group is provided with a corresponding solenoid valve (8); the solenoid valve (8) is used to control the energization and de-energization of the nozzle (61) to start blowing air and stop blowing air.

7. The filter chip removal device according to claim 1, characterized in that, It also includes a frame (11) and a support plate (13) disposed on the frame. The support plate (13) divides the inner cavity of the frame (11) into a first cavity and a second cavity. The feeder (1) and the debris box (2) are disposed in the first cavity, and the swing assembly (3), the motor (5) and the air nozzle assembly (6) are disposed in the second cavity.

8. The filter chip removal device according to claim 1, characterized in that, It also includes a controller and a touch screen (20), the touch screen (20) is connected to the controller, the controller is connected to the motor (5), and the motor (5) controls the rotation angle, rotation speed and rotation mode of the swing disk (32).

9. The filter chip removal device according to claim 1, characterized in that, The suction device (1) is provided with a suction pipe and a suction chamber; the suction chamber is provided with a positive pressure hole and a negative pressure hole; the negative pressure hole has a vacuum suction force; one end of the suction pipe is connected to the negative pressure hole, and the other end is connected to the receiving cavity of the swing disk (32).

10. The filter chip removal device according to claim 1, characterized in that, The planar dimensions of the oscillating disk (32) are larger than the planar dimensions of the filter (500).