Debugging and stabilizing device for cavity filter

Abstract

The invention provides a cavity filter debugging and stabilizing device, and relates to the technical field of filters. The cavity filter debugging stabilizing device is used for debugging a cavity filter, the cavity filter is provided with a tuning part which can be deformed under stress, and the cavity filter debugging stabilizing device comprises a placing seat; the multi-point adsorption mechanism is used for adsorbing a plurality of point positions on the upper surface of the tuning part under negative pressure; the lifting mechanism is connected with the multi-point adsorption mechanism; the air suction and exhaust mechanism is used for providing negative pressure adsorption force for the multi-point adsorption mechanism and providing aerodynamic force for the lifting mechanism, and in the process that the air suction and exhaust mechanism provides the negative pressure adsorption force for the multi-point adsorption mechanism, the lifting mechanism is used for ascending or descending under the action of the aerodynamic force provided by the air suction and exhaust mechanism. According to the invention, pressure is dispersed through multi-point adsorption, too large local deformation or damage of the tuning part possibly caused by traditional single-point contact is avoided, the debugging error is reduced, and the stability in the debugging process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a cavity filter debugging and stabilization device. Background Art

[0002] Filters, as frequency selection devices, are widely used in the communications field, particularly in radio frequency communications. In base stations, filters are used to select communication signals and filter out clutter or interference signals outside the communication signal frequency. Prior art filters include a cavity, a resonant rod disposed within the cavity, and a cover plate covering the top opening of the cavity. The cover plate has an elastically deformable tuning portion. By pressing the tuning portion with a tool, the distance between the tuning portion and the resonant rod is adjusted to adjust the resonant frequency.

[0003] Chinese patent application No. 202321316057.3 discloses a filter debugging tool and a filter, which adopts a method of placing a connecting medium on the tuning part and electrically connecting the trigger part to the external circuit. When the filter needs to be debugged, the trigger part is powered by the external circuit. After the trigger part is energized, the connecting medium is triggered, so that the connecting medium becomes sticky, so that the tuning part and the bottom end of the debugging tool can be pasted together, so that the debugging tool can drive the tuning part to deform. However, there are problems such as concentrated force on the viscous medium, which may cause uneven deformation and residual connecting medium may contaminate the surface of the tuning part or the inside of the cavity, affecting the long-term stability of the filter. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a cavity filter debugging and stabilization device.

[0005] The present invention provides a cavity filter debugging and stabilizing device for debugging a cavity filter, wherein the cavity filter has a tuning part that can be deformed under force, and the cavity filter debugging and stabilizing device comprises: a placement seat; a multi-point adsorption mechanism, wherein the multi-point adsorption mechanism is used to negatively adsorb multiple points on the upper surface of the tuning part; a lifting mechanism connected to the multi-point adsorption mechanism; an air intake and exhaust mechanism, which is used to provide negative pressure adsorption force for the multi-point adsorption mechanism and provide aerodynamic force for the lifting mechanism. When the air intake and exhaust mechanism provides negative pressure adsorption force for the multi-point adsorption mechanism, the lifting mechanism is used to perform an ascending or descending movement under the action of the aerodynamic force provided by the air intake and exhaust mechanism.

[0006] Optionally, the multi-point adsorption mechanism includes a lifting plate, a follower suction cup mechanism and a connecting rod. The upper surface of the placement seat is provided with a vertical through hole. The connecting rod is slidably arranged in the vertical through hole. One end of the connecting rod is connected to the lifting plate. Multiple follower suction cup mechanisms are connected to the bottom surface of the lifting plate. The other end of the connecting rod is connected to the lifting mechanism.

[0007] Optionally, the suction and exhaust mechanism is used to provide negative pressure adsorption force to multiple follow-up suction cup mechanisms at the same time.

[0008] Optionally, the follower suction cup mechanism includes a silicone suction cup, which is movably connected to the bottom surface of the lifting plate, and the suction and exhaust mechanism is used to form a negative pressure on the silicone suction cup.

[0009] Optionally, the follower suction cup mechanism also includes a metal tube and a sphere, one end of the metal tube is connected to the silicone suction cup, and the other end of the metal tube is connected to the suction and exhaust mechanism, the sphere is sleeved on the metal tube, and a ball groove is provided on the bottom surface of the lifting plate, and the sphere is arranged in the ball groove.

[0010] Optionally, the lifting mechanism includes a cylinder and a piston, the cylinder is connected to the placement seat, the piston is slidably arranged in the cylinder, the connecting rod is connected to the piston, the piston divides the inner cavity of the cylinder into an upper chamber and a lower chamber, and the suction and exhaust mechanism is used to exhaust to the upper chamber or the lower chamber.

[0011] Optionally, the lifting mechanism further includes a first spring and a second spring, the first spring and the second spring are respectively arranged in the upper chamber and the lower chamber, the two ends of the first spring are respectively connected to the upper surface of the piston and the inner top surface of the cylinder, and the two ends of the second spring are respectively connected to the lower surface of the piston and the inner bottom surface of the cylinder.

[0012] Optionally, the air intake and exhaust mechanism includes an air pump and a third air pipe, the air inlet of the air pump is connected to one end of the third air pipe, the other end of the third air pipe is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the corresponding metal pipe through multiple branch air pipes.

[0013] Optionally, the suction and exhaust mechanism also includes a first air pipe, a second air pipe, a fourth air pipe and a three-way solenoid valve, one end of the first air pipe is connected to the air outlet of the air pump, the other end of the first air pipe is connected to one end of the three-way solenoid valve, the other two ends of the three-way solenoid valve are respectively connected to one end of the second air pipe and the fourth air pipe, and the other ends of the second air pipe and the fourth air pipe are respectively connected to the upper chamber and the lower chamber.

[0014] The beneficial effects of the cavity filter debugging and stabilization device of the present invention are: by placing the cavity filter in the placement seat, the multi-point adsorption mechanism is used to negatively pressure adsorb multiple points on the upper surface of the tuning part through the suction and exhaust mechanism. Under the action of the aerodynamic force provided by the suction and exhaust mechanism, the lifting mechanism is used to perform an upward or downward movement, thereby causing the tuning part to deform upward or downward to achieve bidirectional adjustment of the frequency signal. The pressure is dispersed through multi-point adsorption, thereby avoiding excessive local deformation or damage of the tuning part that may be caused by traditional single-point contact, reducing debugging errors, improving stability during the debugging process, and being adaptable to tuning parts of different shapes or sizes, thereby enhancing the versatility of the device. Negative pressure adsorption does not require chemical adhesives, thereby avoiding the problem of residual connecting medium contaminating the surface of the tuning part or the inside of the cavity, thereby improving the reliability of the product after debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a cavity filter debugging and stabilization device according to an embodiment of the present invention; Figure 2 A cross-sectional view of a cavity filter debugging and stabilization device according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of the intake and exhaust mechanism in the cavity filter debugging and stabilization device according to an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a multi-point adsorption mechanism in a cavity filter debugging and stabilization device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation of a silicone suction cup in a cavity filter debugging and stabilization device according to an embodiment of the present invention; Figure 6 for Figure 3 A magnified view of the structure at point A; Figure 7 Schematic diagram of the cavity filter structure.

[0016] Explanation of the accompanying symbols: 1. Placement seat; 11. Vertical perforation; 2. Multi-point adsorption mechanism; 21. Lifting plate; 22. Follow-up suction cup mechanism; 221. Silicone suction cup; 222. Sphere; 223. Metal tube; 23. Connecting rod; 3. Inhalation and exhaust mechanism; 31. Air pump; 32. First air pipe; 33. Second air pipe; 34. Third air pipe; 35. Fourth air pipe; 4. Lifting mechanism; 41. Cylinder; 42. Piston; 43. First spring; 44. Second spring; 100. Cavity filter; 110. Cavity; 120. Resonance rod; 130. Tuning part; 140. Protective plate; 141. Avoidance hole. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0020] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] An embodiment of the present invention provides a cavity filter debugging and stabilization device for debugging a cavity filter 100, wherein the cavity filter 100 has a tuning part 130 that can be deformed under force, and the cavity filter debugging and stabilization device includes: a placement seat 1; a multi-point adsorption mechanism 2, wherein the multi-point adsorption mechanism 2 is used to negatively adsorb multiple points on the upper surface of the tuning part 130; a lifting mechanism 4, which is connected to the multi-point adsorption mechanism 2; an air intake and exhaust mechanism 3, which is used to provide negative pressure adsorption force for the multi-point adsorption mechanism 2 and provide aerodynamic force for the lifting mechanism 4. When the air intake and exhaust mechanism 3 provides negative pressure adsorption force for the multi-point adsorption mechanism 2, under the action of the aerodynamic force provided by the air intake and exhaust mechanism 3, the lifting mechanism 4 is used to perform an ascending or descending movement.

[0022] Specifically, the placement seat 1 has a placement cavity for placing the cavity filter 100, and the multi-point adsorption mechanism 2 adopts a negative pressure adsorption method. In addition to having a tuning part 130 that can be deformed by force, the cavity filter 100 has a Figure 7 As shown, the cavity filter 100 also includes a cavity 110, a resonant rod 120, a protective plate 140 and an avoidance hole 141. The tuning part 130 is a plate-like structure or a sheet-like structure made of aluminum foil. A protective plate 140 is stacked on the top of the tuning part 130. The tuning part 130 is installed at the opening of the cavity 110 through the protective plate 140. The protective plate 140 is formed with an avoidance hole 141 corresponding to the position of each tuning part 130.

[0023] In this optional embodiment, combined with Figure 1 、 Figure 2 and Figure 3 As shown, by placing the cavity filter 100 in the placement seat 1, the multi-point adsorption mechanism 2 is used to negatively adsorb multiple points on the upper surface of the tuning part 130 through the suction and exhaust mechanism 3. Under the action of the aerodynamic force provided by the suction and exhaust mechanism 3, the lifting mechanism 4 is used to perform an upward or downward movement, thereby causing the tuning part 130 to deform upward or downward to achieve bidirectional adjustment of the frequency signal. The pressure is dispersed through multi-point adsorption, thereby avoiding excessive local deformation or damage of the tuning part 130 that may be caused by traditional single-point contact, reducing debugging errors, improving stability during the debugging process, and being adaptable to tuning parts 130 of different shapes or sizes, thereby enhancing the versatility of the device. Negative pressure adsorption does not require chemical adhesives, thereby avoiding the problem of residual connecting medium contaminating the surface of the tuning part 130 or the inside of the cavity 110, thereby improving the reliability of the product after debugging.

[0024] Optionally, the multi-point adsorption mechanism 2 includes a lifting plate 21, a follower suction cup mechanism 22 and a connecting rod 23. The upper surface of the placement seat 1 is provided with a vertical through hole 11. The connecting rod 23 is slidably arranged in the vertical through hole 11. One end of the connecting rod 23 is connected to the lifting plate 21. Multiple follower suction cup mechanisms 22 are connected to the bottom surface of the lifting plate 21. The other end of the connecting rod 23 is connected to the lifting mechanism 4.

[0025] In this optional embodiment, the connecting rod 23 is driven to rise or fall by the lifting mechanism 4, thereby driving the lifting plate 21 to move. At this time, the follower suction cup mechanism 22 adsorbs the tuning part 130 with negative pressure, thereby causing the tuning part 130 to deform upward or downward, thereby realizing bidirectional adjustment of the frequency signal.

[0026] Furthermore, the suction and exhaust mechanism 3 is used to provide negative pressure adsorption force to multiple follow-up suction cup mechanisms 22 at the same time.

[0027] Optionally, the follower suction cup mechanism 22 includes a silicone suction cup 221 , which is movably connected to the bottom surface of the lifting plate 21 , and the suction and exhaust mechanism 3 is used to form a negative pressure on the silicone suction cup 221 .

[0028] Furthermore, the follower suction cup mechanism 22 also includes a metal tube 223 and a sphere 222. One end of the metal tube 223 is connected to the silicone suction cup 221, and the other end of the metal tube 223 is connected to the suction and exhaust mechanism 3. The sphere 222 is mounted on the metal tube 223. A ball groove is provided on the bottom surface of the lifting plate 21, and the sphere 222 is arranged in the ball groove.

[0029] In this optional embodiment, combined with Figure 5 and Figure 6As shown, since the silicone suction cup 221 itself has a certain elasticity and is combined with the design of the sphere 222, the silicone suction cup 221 can be adjusted in angle within a certain range. When the tuning part 130 is deformed to bulge upward or to sink downward, the silicone suction cup 221 can always maintain a fit with the upper surface of the tuning part 130, thereby improving stability during debugging.

[0030] Optionally, the lifting mechanism 4 includes a cylinder 41 and a piston 42, the cylinder 41 is connected to the placement seat 1, the piston 42 is slidably arranged in the cylinder 41, the connecting rod 23 is connected to the piston 42, and the piston 42 separates the inner cavity of the cylinder 41 to form an upper chamber and a lower chamber, and the exhaust mechanism 3 is used to exhaust to the upper chamber or the lower chamber.

[0031] In this optional embodiment, combined with Figure 3 As shown, when the suction and exhaust mechanism 3 exhausts air to the upper chamber, the piston 42 drives the connecting rod 23 to move downward, thereby driving the lifting plate 21 to move downward. When the suction and exhaust mechanism 3 exhausts air to the lower chamber, the piston 42 drives the connecting rod 23 to move upward, thereby driving the lifting plate 21 to move upward.

[0032] Furthermore, the lifting mechanism 4 also includes a first spring 43 and a second spring 44, which are respectively arranged in the upper chamber and the lower chamber. The two ends of the first spring 43 are respectively connected to the upper surface of the piston 42 and the inner top surface of the cylinder 41, and the two ends of the second spring 44 are respectively connected to the lower surface of the piston 42 and the inner bottom surface of the cylinder 41.

[0033] In this optional embodiment, combined with Figure 3 and Figure 4 As shown, when the piston 42 moves upward, the first spring 43 is compressed, and when the piston 42 moves downward, the second spring 44 is compressed. In this way, when the air pressure balance between the upper chamber and the lower chamber is restored, the first spring 43 and the second spring 44 can be restored from the compressed state to their original state, thereby driving the piston 42 back to the center position in the cylinder 41.

[0034] Optionally, the air intake and exhaust mechanism 3 includes an air pump 31 and a third air pipe 34, the air inlet of the air pump 31 is connected to one end of the third air pipe 34, the other end of the third air pipe 34 is connected to one end of the connecting rod 23, and the other end of the connecting rod 23 is connected to the corresponding metal tube 223 through multiple branch air pipes.

[0035] Furthermore, the air intake and exhaust mechanism 3 also includes a first air pipe 32, a second air pipe 33, a fourth air pipe 35 and a three-way solenoid valve. One end of the first air pipe 32 is connected to the air outlet of the air pump 31, and the other end of the first air pipe 32 is connected to one end of the three-way solenoid valve. The other two ends of the three-way solenoid valve are respectively connected to one end of the second air pipe 33 and the fourth air pipe 35, and the other ends of the second air pipe 33 and the fourth air pipe 35 are respectively connected to the upper chamber and the lower chamber.

[0036] In this optional embodiment, combined with Figure 3 As shown, the air pump 31 can be fixed on the upper surface of the placement seat 1 by bolts, and the air pump 31 is connected to the left and right sets of multi-point adsorption mechanisms 2. Figure 3 For the multi-point adsorption mechanism 2 on the left, at this time, the gas in the silicone suction cup 221 enters the third air pipe 34 through the branch air pipe, the metal pipe 223 and the connecting rod 23 in turn, so that the silicone suction cup 221 generates negative pressure and tightly adsorbs different points on the upper surface of the tuning part 130. At the same time, the three-way solenoid valve is controlled to connect the first air pipe 32 with the fourth air pipe 35, and the air pump 31 discharges the drawn air into the lower chamber through the first air pipe 32 and the fourth air pipe 35 in turn, thereby pushing the piston 42 to move upward, pushing the gas in the upper chamber into the second air pipe 33, and then driving the connecting rod 23 to move upward, so that the tuning part 130 deforms upward, and when the degree of upward deformation of the tuning part 130 is reached, The greater the degree, the greater the self-stress of the tuning part 130 that needs to be gradually overcome. At this time, the distance that the piston 42 drives the connecting rod 23 to move upward is greater, resulting in more gas that needs to be discharged into the lower chamber, and it is necessary to extract more gas from the silicone suction cup 221, so that the negative pressure adsorption force generated by the silicone suction cup 221 is greater, and the upper surface of the tuning part 130 is adsorbed more tightly, so that the greater the degree of upward deformation of the tuning part 130, the greater the force of the silicone suction cup 221 on the upper surface of the tuning part 130. When the tuning part 130 gradually deforms upward, it can always maintain stability with the silicone suction cup 221, providing stability during debugging, and thus improving debugging accuracy; Figure 3 For the multi-point adsorption mechanism 2 on the middle right, the three-way solenoid valve is controlled to discharge the gas into the upper chamber, thereby pushing the piston 42 downward, and then driving the connecting rod 23 downward, causing the tuning part 130 to deform downward, thereby realizing bidirectional adjustment of the frequency signal.

[0037] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A cavity filter debugging and stabilizing device, used for debugging a cavity filter (100), wherein the cavity filter (100) has a tuning portion (130) that can be deformed by force, characterized in that: The cavity filter debugging and stabilization device includes: Placement seat (1); A multi-point adsorption mechanism (2), the multi-point adsorption mechanism (2) is used to negatively adsorb multiple points on the upper surface of the tuning part (130); A lifting mechanism (4) is connected to the multi-point adsorption mechanism (2); The suction and exhaust mechanism (3) is used to provide negative pressure adsorption force for the multi-point adsorption mechanism (2) and to provide aerodynamic force for the lifting mechanism (4). When the suction and exhaust mechanism (3) provides negative pressure adsorption force for the multi-point adsorption mechanism (2), the lifting mechanism (4) is used to perform an ascending or descending movement under the action of the aerodynamic force provided by the suction and exhaust mechanism (3); The multi-point adsorption mechanism (2) comprises a lifting plate (21), a follower suction cup mechanism (22) and a connecting rod (23); a vertical through hole (11) is provided on the upper surface of the placement seat (1); the connecting rod (23) is slidably arranged in the vertical through hole (11); one end of the connecting rod (23) is connected to the lifting plate (21); a plurality of follower suction cup mechanisms (22) are connected to the bottom surface of the lifting plate (21); and the other end of the connecting rod (23) is connected to the lifting mechanism (4); The suction and exhaust mechanism (3) is used to simultaneously provide negative pressure adsorption force for a plurality of follower suction cup mechanisms (22); The lifting mechanism (4) comprises a cylinder (41) and a piston (42). The cylinder (41) is connected to the placement seat (1). The piston (42) is slidably arranged in the cylinder (41). The connecting rod (23) is connected to the piston (42). The piston (42) separates the inner cavity of the cylinder (41) into an upper chamber and a lower chamber. The suction and exhaust mechanism (3) is used to exhaust air to the upper chamber or the lower chamber.

2. The cavity filter debugging and stabilization device according to claim 1, characterized in that: The follow-up suction cup mechanism (22) comprises a silicone suction cup (221) which is movably connected to the bottom surface of the lifting plate (21). The suction and exhaust mechanism (3) is used to form a negative pressure on the silicone suction cup (221).

3. The cavity filter debugging and stabilization device according to claim 2, characterized in that: The follow-up suction cup mechanism (22) further comprises a metal tube (223) and a sphere (222). One end of the metal tube (223) is communicated with the silicone suction cup (221), and the other end of the metal tube (223) is communicated with the suction and exhaust mechanism (3). The sphere (222) is sleeved on the metal tube (223). A ball groove is provided on the bottom surface of the lifting plate (21), and the sphere (222) is arranged in the ball groove.

4. The cavity filter debugging and stabilization device according to claim 3, characterized in that: The lifting mechanism (4) further comprises a first spring (43) and a second spring (44), the first spring (43) and the second spring (44) being respectively arranged in the upper chamber and the lower chamber, the two ends of the first spring (43) being respectively connected to the upper surface of the piston (42) and the inner top surface of the cylinder (41), and the two ends of the second spring (44) being respectively connected to the lower surface of the piston (42) and the inner bottom surface of the cylinder (41).

5. The cavity filter debugging and stabilization device according to claim 4, characterized in that: The air intake and exhaust mechanism (3) comprises an air pump (31) and a third air pipe (34); the air inlet of the air pump (31) is connected to one end of the third air pipe (34); the other end of the third air pipe (34) is connected to one end of a connecting rod (23); and the other end of the connecting rod (23) is connected to a corresponding metal pipe (223) through a plurality of branch air pipes.

6. The cavity filter debugging and stabilization device according to claim 5, characterized in that: The air intake and exhaust mechanism (3) further comprises a first air pipe (32), a second air pipe (33), a fourth air pipe (35) and a three-way electromagnetic valve. One end of the first air pipe (32) is connected to the air outlet of the air pump (31), the other end of the first air pipe (32) is connected to one end of the three-way electromagnetic valve, the other two ends of the three-way electromagnetic valve are respectively connected to one end of the second air pipe (33) and the fourth air pipe (35), and the other ends of the second air pipe (33) and the fourth air pipe (35) are respectively connected to the upper chamber and the lower chamber.

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