Dielectric filter convenient to disassemble and assemble

Abstract

The invention relates to the technical field of filters, and provides a dielectric filter convenient to disassemble and assemble, which comprises a filter shell, a quick assembly component, a dielectric module, a connecting part and a sealing cover, and is characterized in that the filter shell is mounted on the surface of a substrate, a fixed seat on the surface of the substrate is provided with a threaded hole, and two sides of the filter shell are respectively provided with a first insertion hole and a second insertion hole; the fast assembly assembly comprises an adjusting part, a fastening part and a limiting part, a driven gear in the fastening part is fixedly connected with the rotating pipe, a movable rod is fixedly connected with a screw rod, the movable rod is movably arranged in the rotating pipe in a sleeved mode, the adjusting part is in transmission connection with the driven gear, and the screw rod is in threaded connection with the interior of the threaded hole. The limiting part comprises a bent rod, a limiting rod and a reset spring, a fixing block on the surface of the sealing cover is provided with a limiting hole, the fixing block is connected with the first insertion hole in an inserted mode, the limiting rod is connected into the limiting hole in an inserted mode, and the filter shell and the sealing cover are convenient to disassemble and assemble.

Description

Technical Field

[0001] The invention relates to the technical field of filters, and in particular to a dielectric filter which is easy to assemble and disassemble. Background Art

[0002] Dielectric filters are formed by coupling between dielectric resonators. Dielectric resonator filters have high Q value, low insertion loss, small size and light weight, and are widely used in wireless base stations, satellite communications, navigation systems, electronic countermeasures and other systems.

[0003] Patent No. CN110379622B discloses a dielectric filter used on a 5G base station, including a base station mounting plate, a filter housing and a dielectric body. The dielectric body is installed on the filter housing, and the filter housing is arranged on the base station mounting plate. A pair of mounting tooth plates are symmetrically welded on the upper end of the base station mounting plate, and a guide plate is symmetrically welded on the side of the mounting tooth plate, so that the mounting groove at the lower end of the filter housing can be plugged into the mounting tooth plate, and the guide plate can slide along the guide groove, so that the filter housing can be accurately docked with the base station mounting plate, and then the fixed tooth plate in the fixing mechanism is clamped with the mounting tooth plate, so as to preliminarily fix the filter housing, and then the locking bolt is screwed into the threaded hole to firmly clamp the fixed tooth plate and the mounting tooth plate, and the dielectric filter is firmly fixed to the base station mounting plate through the set fixing mechanism.

[0004] The above-disclosed dielectric filter also has the following defects: when the installation space is small, the operating space for the staff is limited, which means that when there are more fastening components or more operating directions, it is more difficult to disassemble and assemble the dielectric filter in a narrow space. On the other hand, in the above dielectric filter, the fixing structure of the filter housing and the structure of the cover plate are separate, and it is impossible to use the same fastening structure or the same operating direction or number of operations to complete the disassembly and assembly of the fixing structure and the cover plate at the same time or in sequence. Summary of the invention

[0005] The purpose of the present invention is to provide a dielectric filter which is easy to assemble and disassemble, aiming to solve the problems existing in the use of the existing dielectric filter.

[0006] To achieve the above object, the present invention provides the following technical solution: a dielectric filter that is easy to disassemble and assemble, comprising a filter housing, a dielectric module, a connecting portion and a sealing cover, wherein the dielectric module is embedded in the filter housing, the connecting portion and the sealing cover are both connected to the filter housing, the filter housing is mounted on a substrate surface, a fixing seat is fixedly connected to the substrate surface, a threaded hole is provided on the fixing seat surface, a first plug hole and a second plug hole are respectively provided on both sides of the filter housing, the fixing seat is plugged and connected in the second plug hole, and further comprising: A quick-installation component located inside the filter housing. The quick-installation component includes an adjustment part, a fastening part, and a limiting part. The fastening part includes a rotating tube, a driven gear, a movable rod, and a screw. The driven gear is fixedly connected to the rotating tube. The movable rod is fixedly connected to the screw. The movable rod is movably sleeved inside the rotating tube. The adjustment part is in transmission connection with the driven gear. The screw is threadedly connected inside a threaded hole. The limiting part includes a bent rod, a limiting rod, and a return spring. The bent rod is fixedly connected to the limiting rod. A return spring is arranged between the bent rod and the filter housing. One end of the screw背离 the movable rod contacts the bent rod. A fixed block arranged on the surface of the sealing cover. The fixed block is inserted and connected with a first insertion hole. A limiting hole is arranged on the surface of the fixed block. The limiting rod is inserted and connected inside the limiting hole.

[0007] As a further solution of the present invention, it further includes a heat dissipation component located inside the filter housing. The heat dissipation component includes a transmission part and a heat dissipation part. The transmission part includes a cross bar, a C-shaped opening, a movable frame, and an inclined guide rail. The movable frame is fixedly connected to the cross bar. C-shaped openings are arranged at both ends of the cross bar. A plurality of inclined guide rails are arranged on the surface of the movable frame. The heat dissipation part is slidably connected with the inclined guide rail.

[0008] As a further solution of the present invention, the limiting part further includes a transmission rod. The bent rod is fixedly connected to the transmission rod. The return spring is connected between the transmission rod and the filter housing. The transmission rod is inserted and connected inside the C-shaped opening.

[0009] As a further solution of the present invention, the heat dissipation part includes a movable pin, a heat conduction rod, and heat dissipation fins. The movable pin is movably connected inside the inclined guide rail. The heat conduction rod is fixedly connected to the movable pin. The heat dissipation fins are fixedly connected to one end of the heat conduction rod.

[0010] As a further solution of the present invention, a first linear guide rail is arranged on the surface of the filter housing. A heat dissipation fin is inlaid inside the filter housing. A second linear guide rail is arranged on the surface of the heat dissipation fin. The heat dissipation fin is slidably connected inside the first linear guide rail. The other end of the heat conduction rod is slidably connected inside the second linear guide rail.

[0011] As a further solution of the present invention, a first accommodation cavity, a second accommodation cavity, and a third accommodation cavity that communicate with each other are arranged inside the filter housing. The adjustment part and the fastening part are both connected inside the first accommodation cavity. The limiting part is located inside the second accommodation cavity. The transmission part is located inside the third accommodation cavity. The first linear guide rail communicates with the third accommodation cavity. The first insertion hole and the second insertion hole communicate with the first accommodation cavity and the second accommodation cavity respectively.

[0012] As a further solution of the present invention, the adjustment part includes a knob, an adjustment rod and a driving gear, the knob and the driving gear are both fixedly connected to the adjustment rod, and the driven gear is transmission-connected to the driving gear.

[0013] As a further solution of the present invention, the fastening part also includes limiting ribs and limiting plates. The surface of the movable rod and the inner wall of the rotating tube are respectively provided with limiting ribs and limiting grooves. The limiting ribs are slidably connected to the limiting grooves, and the limiting plates are fixedly connected between the movable rod and the screw.

[0014] As a further solution of the present invention, the bending rod and the limiting rod are both L-shaped rods, and the transmission rod is a straight rod.

[0015] As a further solution of the present invention, a rotating shaft is fixedly connected to one side of the sealing cover, the rotating shaft is rotatably connected to the filter housing, and an opening is provided on the surface of the sealing cover.

[0016] The beneficial effect of the present invention is that the present application utilizes the structural coordination among the adjusting part, the fastening part and the limiting part to simultaneously control the screw rod and the limiting rod to be inserted into or disengaged from the threaded hole and the limiting hole respectively, thereby being able to simultaneously disassemble and assemble the filter housing and the sealing cover, and having the characteristic of convenient disassembly and assembly of the filter housing and the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention.

[0018] Figure 2 It is an exploded view of the present invention.

[0019] Figure 3 It is a three-dimensional diagram of a filter housing according to an embodiment of the present invention.

[0020] Figure 4 It is a three-dimensional diagram of a quick-install assembly according to an embodiment of the present invention.

[0021] Figure 5 It is a three-dimensional diagram of a sealing cover according to an embodiment of the present invention.

[0022] Figure 6 Schematic diagram of the disassembly of the heat dissipation component according to an embodiment of the present invention.

[0023] Figure 7 It is a three-dimensional diagram of a heat dissipation assembly according to an embodiment of the present invention.

[0024] Figure 8 3D is a three-dimensional diagram of a substrate according to an embodiment of the present invention.

[0025] Fig. 9 It is an assembly diagram of the quick-install component and the heat dissipation component according to an embodiment of the present invention.

[0026] Fig.10This is a partial cross-sectional view after the present invention is assembled with the substrate.

[0027] Fig.11 This is a partial cross-sectional view of the present invention.

[0028] Reference numerals: 1 - filter housing, 11 - connecting portion, 12 - first accommodating cavity, 13 - first insertion hole, 14 - first linear guide rail, 15 - heat sink, 151 - second linear guide rail, 16 - second accommodating cavity, 17 - third accommodating cavity, 18 - second insertion hole, 2 - dielectric module, 3 - quick installation assembly, 31 - adjusting portion, 311 - knob, 312 - adjusting rod, 313 - driving gear, 32 - fastening portion, 321 - rotating tube, 322 - driven gear, 323 - movable rod, 3231 - limiting rib, 3232 - limiting piece, 324 - screw rod, 33 - limiting portion, 331 - bent rod, 332 - limiting rod, 333 - return spring, 334 - transmission rod, 4 - sealing cover, 41 - rotating shaft, 42 - fixing block, 421 - limiting hole, 43 - opening, 5 - heat dissipation assembly, 51 - transmission portion, 511 - cross bar, 512 - U-shaped opening, 513 - moving frame, 514 - inclined guide rail, 52 - heat dissipation portion, 521 - movable pin, 522 - heat conducting rod, 523 - heat dissipation fins, 6 - substrate, 61 - fixing seat, 62 - threaded hole. Detailed implementation manners

[0029] TTo make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0031] Please refer to Figures 1 to 10 , in an embodiment of the present invention, a dielectric filter that is easy to disassemble and assemble includes a filter housing 1, a dielectric module 2, a connecting portion 11 and a sealing cover 4. The dielectric module 2 is embedded in the filter housing 1. The connecting portion 11 and the sealing cover 4 are both connected to the filter housing 1. The filter housing 1 is installed on the surface of a substrate 6. A fixing seat 61 is fixedly connected to the surface of the substrate 6. Threaded holes 62 are provided on the surface of the fixing seat 61. First insertion holes 13 and second insertion holes 18 are respectively provided on both sides of the filter housing 1. The fixing seat 61 is inserted and connected in the second insertion hole 18. Further included are: The quick-install assembly 3 is located in the filter housing 1, and the quick-install assembly 3 includes an adjusting portion 31, a fastening portion 32 and a limiting portion 33. The fastening portion 32 includes a rotating tube 321, a driven gear 322, a movable rod 323 and a screw 324. The driven gear 322 is fixedly connected to the rotating tube 321, and the movable rod 323 is fixedly connected to the screw 324. The movable rod 323 is movably sleeved in the rotating tube 321. The adjusting portion 31 is transmission-connected to the driven gear 322, and the screw 324 is threadedly connected in the threaded hole 62. The limiting part 33 includes a bent rod 331, a limiting rod 332 and a return spring 333. The bent rod 331 is fixedly connected to the limiting rod 332. The return spring 333 is arranged between the bent rod 331 and the filter housing 1. The end of the screw rod 324 away from the movable rod 323 is in contact with the bent rod 331. A fixing block 42 is arranged on the surface of the sealing cover 4 , the fixing block 42 is plugged and connected with the first plug hole 13 , a limiting hole 421 is arranged on the surface of the fixing block 42 , and the limiting rod 332 is plugged and connected in the limiting hole 421 .

[0032] See also Figure 4 Furthermore, the adjusting portion 31 includes a knob 311 , an adjusting rod 312 and a driving gear 313 , the knob 311 and the driving gear 313 are both fixedly connected to the adjusting rod 312 , and the driven gear 322 is transmission-connected to the driving gear 313 .

[0033] See also Figure 4 Furthermore, the fastening portion 32 also includes a limiting rib 3231 and a limiting plate 3232. The surface of the movable rod 323 and the inner wall of the rotating tube 321 are respectively provided with a limiting rib 3231 and a limiting groove. The limiting rib 3231 is slidably connected to the limiting groove, and the limiting plate 3232 is fixedly connected between the movable rod 323 and the screw 324.

[0034] See also Figure 4 Furthermore, the bending rod 331 and the limiting rod 332 are both L-shaped rods.

[0035] In the embodiment of the present invention, the limiting piece 3232 is used to limit the axial stroke of the screw rod 324 . In the initial state, one end of the movable rod 323 is exposed outside the first accommodating cavity 12 or the filter housing 1 .

[0036] See also Figures 6 to 9, in an embodiment of the present invention, it further includes a heat dissipation component 5 located inside the filter housing 1. The heat dissipation component 5 includes a transmission part 51 and a heat dissipation part 52. The transmission part 51 includes a cross bar 511, a C-shaped opening 512, a moving frame 513, and an inclined guide rail 514. The moving frame 513 is fixedly connected to the cross bar 511. C-shaped openings 512 are provided at both ends of the cross bar 511. A plurality of inclined guide rails 514 are provided on the surface of the moving frame 513. The heat dissipation part 52 is slidably connected to the inclined guide rail 514.

[0037] Please refer to Figure 4 and Fig. 9 , further, the limiting part 33 further includes a transmission rod 334. The bent rod 331 is fixedly connected to the transmission rod 334. The return spring 333 is connected between the transmission rod 334 and the filter housing 1. The transmission rod 334 is inserted and connected into the C-shaped opening 512.

[0038] Please refer to Figure 5 and Figure 6 , further, the heat dissipation part 52 includes a movable pin 521, a heat conducting rod 522, and heat dissipation fins 523. The movable pin 521 is movably connected inside the inclined guide rail 514. The heat conducting rod 522 is fixedly connected to the movable pin 521. The heat dissipation fins 523 are fixedly connected to one end of the heat conducting rod 522.

[0039] Please refer to Figures 3 to 11 , further, a first linear guide rail 14 is provided on the surface of the filter housing 1. A heat sink 15 is embedded inside the filter housing 1. A second linear guide rail 151 is provided on the surface of the heat sink 15. The heat dissipation fins 523 are slidably connected inside the first linear guide rail 14. The other end of the heat conducting rod 522 is slidably connected inside the second linear guide rail 151.

[0040] Please refer to Figures 3 to 11 , further, a first accommodation cavity 12, a second accommodation cavity 16, and a third accommodation cavity 17 that communicate with each other are provided inside the filter housing 1. The adjustment part 31 and the fastening part 32 are both connected inside the first accommodation cavity 12. The limiting part 33 is located inside the second accommodation cavity 16. The transmission part 51 is located inside the third accommodation cavity. The first linear guide rail 14 communicates with the third accommodation cavity 17. The first insertion hole 13 and the second insertion hole 18 communicate with the first accommodation cavity 12 and the second accommodation cavity 16 respectively.

[0041] In an embodiment of the present invention, the transmission rod 334 is a straight rod. One side of the sealing cover 4 is fixedly connected with a rotating shaft 41. The rotating shaft 41 is rotatably connected to the filter housing 1. An opening 43 is provided on the surface of the sealing cover 4 for avoiding the heat dissipation fins 523.

[0042] Working principle: First, insert the fixed seat 61 into the second insertion hole 18. Since one end of the movable rod 323 is exposed outside the first accommodation cavity 12 or the filter housing 1, while rotating the adjusting rod 312, the driving gear 313, the driven gear 322, the movable rod 323 and the screw 324 by using the knob 311, press the movable rod 323 at the same time to thread the screw 324 into the threaded hole 62. As the knob 311 continues to rotate, the end of the screw 324 passing through the threaded hole 62 presses the bent rod 331 against the elastic force of the return spring 333. On the one hand, the moving bent rod 331 can insert the limiting rod 332 into the limiting hole 421 on the surface of the fixed block 42, thus realizing the function of fixing the filter housing 1 and the sealing cover 4 at the same time; When only the sealing cover 4 needs to be opened for repairing the internal electronic components, only need to reverse the knob 311 to control the reverse movement of the screw 324, so that the screw 324 moves into the threaded hole 62. The elastic force of the spring can drive the limiting rod 332 to disengage from the limiting hole 421. At this time, the user can open the sealing cover 4 alone. When the screw 324 reversely disengages from the threaded hole 62 by continuing to reverse the knob 311, the fixing of the filter housing 1 and the sealing cover 4 can be released at the same time, which has the characteristics of being convenient for disassembly and assembly.

[0043] On the one hand, the moving bent rod 331 can drive the moving frame 513 to move through the transmission rod 334 and the U-shaped opening 512. The moving moving frame 513 is slidably connected with the movable pin 521 through the inclined guide rail 514 to control a plurality of heat conducting rods 522 to move away from each other in the first linear guide rail 14 and the second linear guide rail 151. On the one hand, it can expand the gap between the heat conducting rods 522 and the heat dissipation fins 523, and on the other hand, it can expand the distribution area of the heat conducting rods 522 on the surface of the heat sink 15, thereby improving the heat dissipation efficiency of the heat sink 15 to the heat conducting rods 522 and the heat dissipation fins 523.

[0044] To sum up, by using the structural cooperation among the adjusting part 31, the fastening part 32 and the limiting part 33 in this application, the screw 324 and the limiting rod 332 can be controlled to insert into or disengage from the threaded hole 62 and the limiting hole 421 respectively, so that the filter housing 1 and the sealing cover 4 can be disassembled and assembled at the same time, which has the characteristics of being convenient for disassembling and assembling the filter housing 1 and the sealing cover 4.

[0045] In this application, with the structural design of the cooperation among the transmission rod 334, the cross bar 511, the U-shaped opening 512, the moving frame 513 and the heat dissipation part 52, while controlling the movement of the screw rod 324, the gap between the heat conduction rod 522 and the heat dissipation fins 523 can also be adjusted. After the filter housing 1 and the sealing cover 4 are installed, the gap between the heat conduction rod 522 and the heat dissipation fins 523 can be enlarged. Thus, on the premise of relative sealing, on the one hand, the ventilation and heat dissipation around the heat dissipation fins 523 can be ensured, and on the other hand, the uniformity of heat dissipation or heat conduction can be improved. After the limiting rod 332 disengages from the limiting hole 421, the gap between the heat dissipation fins 523 can automatically shrink. Since a large amount of heat can directly dissipate from the opening of the filter housing 1 after the sealing cover 4 is opened, the relatively concentrated heat dissipation fins 523 are convenient for the staff to repair or disassemble the internal electronic components, and have the characteristics of being easy to adjust and easy to dissipate heat.

[0046] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and its equivalents.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dielectric filter that is easy to disassemble and assemble, comprising a filter housing (1), a dielectric module (2), a connecting portion (11) and a sealing cover (4), wherein the dielectric module (2) is embedded in the filter housing (1), the connecting portion (11) and the sealing cover (4) are both connected to the filter housing (1), the filter housing (1) is mounted on the surface of a substrate (6), a fixing seat (61) is fixedly connected to the surface of the substrate (6), a threaded hole (62) is provided on the surface of the fixing seat (61), a first plug hole (13) and a second plug hole (18) are respectively provided on both sides of the filter housing (1), the fixing seat (61) is plugged and connected in the second plug hole (18), and is characterized in that: It further includes: A quick - installation component (3) located inside the filter housing (1). The quick - installation component (3) includes an adjustment part (31), a fastening part (32), and a limiting part (33). The fastening part (32) includes a rotating tube (321), a driven gear (322), a movable rod (323), and a screw rod (324). The driven gear (322) is fixedly connected to the rotating tube (321). The movable rod (323) is fixedly connected to the screw rod (324). The movable rod (323) is movably sleeved inside the rotating tube (321). The adjustment part (31) is in transmission connection with the driven gear (322). The screw rod (324) is threadedly connected inside the threaded hole (62). The limiting part (33) includes a bent rod (331), a limiting rod (332), and a return spring (333). The bent rod (331) is fixedly connected to the limiting rod (332). A return spring (333) is arranged between the bent rod (331) and the filter housing (1). One end of the screw rod (324)背离活动杆(323)的一端与弯杆(331)接触; A fixing block (42) arranged on the surface of the sealing cover (4). The fixing block (42) is in plug - in connection with the first plug - in hole (13). A limiting hole (421) is arranged on the surface of the fixing block (42). The limiting rod (332) is in plug - in connection inside the limiting hole (421).

2. A dielectric filter that is easy to assemble and disassemble according to claim 1, characterized in that: It further includes a heat - dissipation component (5) located inside the filter housing (1). The heat - dissipation component (5) includes a transmission part (51) and a heat - dissipation part (52). The transmission part (51) includes a cross - bar (511), a U - shaped opening (512), a movable frame (513), and an inclined guide rail (514). The movable frame (513) is fixedly connected to the cross - bar (511). U - shaped openings (512) are arranged at both ends of the cross - bar (511). A number of inclined guide rails (514) are arranged on the surface of the movable frame (513). The heat - dissipation part (52) is slidably connected to the inclined guide rails (514).

3. A dielectric filter that is easy to assemble and disassemble according to claim 2, characterized in that: The limiting part (33) further includes a transmission rod (334). The bent rod (331) is fixedly connected to the transmission rod (334). The return spring (333) is connected between the transmission rod (334) and the filter housing (1). The transmission rod (334) is in plug - in connection inside the U - shaped opening (512).

4. A dielectric filter that is easy to assemble and disassemble according to claim 3, characterized in that: The heat - dissipation part (52) includes a movable pin (521), a heat - conducting rod (522), and heat - dissipation fins (523). The movable pin (521) is movably connected inside the inclined guide rail (514). The heat - conducting rod (522) is fixedly connected to the movable pin (521). The heat - dissipation fins (523) are fixedly connected to one end of the heat - conducting rod (522).

5. The dielectric filter that is easy to assemble and disassemble according to claim 4, characterized in that: A first linear guide rail (14) is arranged on the surface of the filter housing (1). A heat - dissipation fin (15) is inlaid inside the filter housing (1). A second linear guide rail (151) is arranged on the surface of the heat - dissipation fin (15). The heat - dissipation fins (523) are slidably connected inside the first linear guide rail (14). The other end of the heat - conducting rod (522) is slidably connected inside the second linear guide rail (151).

6. The dielectric filter that is easy to assemble and disassemble according to claim 5, characterized in that: The filter housing (1) is provided with a first accommodating chamber (12), a second accommodating chamber (16) and a third accommodating chamber (17) which are interconnected; the adjusting portion (31) and the fastening portion (32) are both connected to the first accommodating chamber (12); the limiting portion (33) is located in the second accommodating chamber (16); the transmission portion (51) is located in the third accommodating chamber; the first linear guide rail (14) is connected to the third accommodating chamber (17); and the first plug hole (13) and the second plug hole (18) are respectively connected to the first accommodating chamber (12) and the second accommodating chamber (16).

7. The dielectric filter that is easy to assemble and disassemble according to claim 6, characterized in that: The adjusting portion (31) comprises a knob (311), an adjusting rod (312) and a driving gear (313); the knob (311) and the driving gear (313) are both fixedly connected to the adjusting rod (312); and the driven gear (322) is drivingly connected to the driving gear (313).

8. The dielectric filter that is easy to assemble and disassemble according to claim 7, characterized in that: The fastening portion (32) further comprises a limiting rib (3231) and a limiting plate (3232); the surface of the movable rod (323) and the inner wall of the rotating tube (321) are respectively provided with the limiting rib (3231) and the limiting groove; the limiting rib (3231) is slidably connected to the limiting groove; and the limiting plate (3232) is fixedly connected between the movable rod (323) and the screw rod (324).

9. The dielectric filter that is easy to assemble and disassemble according to claim 3, characterized in that: The bent rod (331) and the limiting rod (332) are both L-shaped rods, and the transmission rod (334) is a straight rod.

10. The dielectric filter that is easy to assemble and disassemble according to claim 1, characterized in that: A rotating shaft (41) is fixedly connected to one side of the sealing cover (4), the rotating shaft (41) is rotatably connected to the filter housing (1), and an opening (43) is provided on the surface of the sealing cover (4).

Images