Waveguide converter for a filter

Abstract

The application discloses a waveguide converter for filter, which comprises a converter main body, a transmitting optical fiber, a receiving optical fiber, a mounting and connecting assembly and a stabilizing assembly, and is characterized in that the transmitting optical fiber and the receiving optical fiber are connected and fixed with the converter main body through the mounting and connecting assembly, that is, a connecting threaded column is inserted into a second mounting hole on a mounting plate, then passes through a first mounting hole on a connecting side plate, so that a stabilizing baffle at one end of the connecting threaded column is tightly attached to the mounting plate, and then an internally-threaded fastening cap is screwed with the connecting threaded column; the overall stability of the converter is realized by cooperation of the stabilizing assembly and the mounting and connecting assembly, which not only has a good effect on the stable connection of the transmitting optical fiber and the receiving optical fiber, but also has a corresponding positive effect on the overall stability of the converter.

Description

Technical Field

[0001] This invention relates to the field of filter technology, specifically to a waveguide converter for filters. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. Filters can effectively filter out specific frequencies or frequencies outside of a power line to obtain a power signal of a specific frequency, or eliminate a power signal after a specific frequency has been selected. Filters, as frequency selection devices, are widely used in the communication field, especially in radio frequency communication. In base stations that complete signal transmission and reception in communication systems, filters are used to select communication signals and filter out noise or interference signals outside the communication signal frequency. A document with publication number CN213934284U discloses an optical waveguide mode converter, which includes a mode conversion waveguide, a substrate, and a cover plate, with the cover plate positioned directly above the substrate. The mode conversion waveguide further includes a small mode waveguide, a mode transition waveguide, and a large mode waveguide. This improves the coupling efficiency between the silicon optical waveguide and the optical fiber. Compared to traditional lens coupling, it can use adhesive bonding to achieve integrated packaging and improve integration. However, this solution uses adhesive bonding to fix the converter and its connection to other modules. In actual use, the overall stability may not meet practical requirements, which inevitably affects the stability of the converter's operation.

[0003] Existing waveguide transducers for filters connect to transmitting and receiving optical fibers at their two ends, respectively. The transducer processes the signal emitted from the transmitting fiber and then transmits it through the receiving fiber. The connection between the transmitting and receiving fibers and the transducer is typically secured with screws. Connecting side plates are provided at both ends of the transducer, or the optical fibers are connected to compatible screw holes. After the optical fibers are inserted into the interfaces at the transducer ends, they are then fixed with appropriate screws. In practical use, the stability of this connection needs further improvement. Furthermore, as described in the above solution, the transducer is bonded with adhesive, which inevitably affects the overall stability of the transducer. This negatively impacts signal transmission and processing.

[0004] To address these issues, this invention proposes a waveguide converter for filters. Summary of the Invention

[0005] The purpose of this invention is to provide a waveguide converter for filters to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waveguide converter for a filter, comprising a converter body, a transmitting optical fiber, a receiving optical fiber, an installation and connection assembly, and a stabilizing assembly;

[0007] The converter body has symmetrically arranged connection ports at both ends, and symmetrically arranged connection side plates at the sides of the connection ports, with a first mounting hole through the connection side plate.

[0008] The transmitting optical fiber is connected to one end of the converter body via a connector, and a mounting plate is fixedly provided on the side of the transmitting optical fiber, and the mounting plate is provided with a second mounting hole.

[0009] The transmitting optical fiber is fixedly connected to one end of the converter body through a mounting connection component and secured by a stabilizing component.

[0010] Preferably, the receiving optical fiber is plugged into the other end of the converter body, and a mounting plate is also fixedly provided on the side of the receiving optical fiber. The second mounting hole on the mounting plate corresponds to the first mounting hole on the connecting side plate in terms of position, number of sets, and hole diameter.

[0011] Preferably, the connecting side plate is symmetrically provided with auxiliary connecting cavities, one end of which is connected to the first mounting hole, and the other end of which is connected to the end connector of the converter body.

[0012] Preferably, the installation connection assembly includes a connecting threaded post, a stabilizing baffle, a rectangular through groove, a mating block, a fastening slot, an internal thread fastening cap, an auxiliary through groove, a rubber clamp, an auxiliary pull head, and an auxiliary protrusion; a stabilizing baffle is fixedly provided at one end of the connecting threaded post, rectangular through grooves are provided at equal intervals on the side wall of the connecting threaded post, and a mating block is fixedly provided at the other end of the connecting threaded post, the mating block is provided with a fastening slot, and the mating block is connected to the stabilizing assembly.

[0013] Preferably, the rectangular through slots are connected to each other.

[0014] Preferably, the connecting threaded post is threadedly connected to the internal threaded fastening cap, and the side wall of the internal threaded fastening cap is provided with auxiliary through grooves at equal intervals. The groove width of the auxiliary through groove is greater than the groove width of the rectangular through groove, and the end diameter of the connecting threaded post is equal to the diameter of the first mounting hole.

[0015] Preferably, an auxiliary pull head is fixedly provided at one end of the rubber clamp, and auxiliary inclined surfaces are symmetrically provided on both sides of the rubber clamp, with auxiliary protrusions fixedly provided at equal intervals on the auxiliary inclined surfaces.

[0016] Preferably, the stabilizing component includes a first connecting rod, an externally threaded mating head, a limiting stop plate, a second connecting rod, an internally threaded pull-out tube, a limiting ring, a mating slot, a positioning threaded hole, and a positioning screw; one end of the first connecting rod is provided with a mating slot, which is adapted to be inserted into the mating block, and the sides of the mating slot are symmetrically provided with positioning threaded holes, which are threadedly connected to the positioning screw; the other end of the first connecting rod is fixedly provided with an externally threaded mating head, and the positioning threaded hole corresponds to the fastening groove on the mating block; the groove shape of the mating slot is set to square, and the end shape of the mating block is also set to square.

[0017] Preferably, a limit stop is fixedly provided at one end of the second connecting rod, and a mating slot is also provided at the end face of the other end of the second connecting rod. An internally threaded pull tube is movably sleeved on the second connecting rod, and a limit ring is provided on the inner side wall of one end of the internally threaded pull tube.

[0018] Preferably, the outer wall of the internal threaded tie pipe fitting is provided with anti-slip convex strips at equal intervals, and the internal threaded tie pipe fitting and the external threaded mating post are positioned correspondingly, have the same number of sets, and are compatible with each other for threaded connection.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention designs a waveguide converter for filters, comprising a converter body, a transmitting optical fiber, a receiving optical fiber, a mounting connection assembly, and a stabilizing assembly. The transmitting and receiving optical fibers are connected and fixed to the converter body via the mounting connection assembly. Specifically, a threaded post is inserted into the second mounting hole on the mounting plate, then passes through the first mounting hole on the connecting side plate, ensuring the stabilizing baffle at one end of the threaded post is tightly against the mounting plate. The internal threaded fastening cap is then screwed tightly onto the threaded post. To further improve the stability of the threaded connection between the threaded post and the internal threaded fastening cap, i.e., to improve the connection stability between the transmitting optical fiber and the converter body, after tightening the internal threaded fastening cap, it is directly inserted into one of the auxiliary through slots on the side of the internal threaded fastening cap until the head of the rubber clamp is inserted into the corresponding rectangular through slot on the side of the threaded post. This invention enhances the overall stability of the converter through the combination of the stabilizing assembly and the mounting connection assembly. This invention achieves the desired effect through combined use and further enhances the stability of the connection between the transmitting and receiving optical fibers. When connecting and installing the transmitting and receiving optical fibers, the internal threaded fastening caps can be tightened first, and then the internal threaded pull fitting and the external threaded mating post can be connected by rotating the internal thread. This creates a pulling force between the first and second connecting rods, which not only benefits the stable connection between the transmitting and receiving optical fibers but also improves the overall stability of the converter. Furthermore, the auxiliary connecting cavity groove in the connecting side plate can also be used in conjunction with the connecting threaded post in the installation connection assembly. That is, the rectangular through groove at the corresponding position on the connecting threaded post communicates with the auxiliary connecting cavity groove, and the rectangular through groove is open to the outside. This provides a certain degree of heat dissipation at the insertion positions of the transmitting and receiving optical fibers and the converter, which also has a positive effect on the stable operation of the waveguide converter. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the converter structure connection on the left side of the present invention;

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the converter structure connection on the right side of the present invention;

[0024] Figure 4 for Figure 3 Enlarged schematic diagram of the structural connection at point B;

[0025] Figure 5 This is a schematic diagram of the main structure connection of the converter of the present invention;

[0026] Figure 6This is a schematic diagram of the connection structure of the mounting and connecting components of the present invention;

[0027] Figure 7 This is a schematic diagram of the left side of the exploded connection of the stable component structure of the present invention;

[0028] Figure 8 for Figure 7 Enlarged schematic diagram of the structural connection at point C;

[0029] Figure 9 for Figure 7 Enlarged schematic diagram of the structural connection at point D;

[0030] Figure 10 The right-hand side diagram shows the connection of the robust component structure of this invention after an explosion.

[0031] Figure 11 for Figure 10 Enlarged schematic diagram of the structural connection at point E in the middle;

[0032] Figure 12 for Figure 10 Enlarged schematic diagram of the structural connection at point F.

[0033] In the diagram: 1. Converter body; 11. Connecting socket; 12. Connecting side plate; 13. First mounting hole; 2. Transmitting optical fiber; 3. Receiving optical fiber; 41. Mounting plate; 42. Second mounting hole; 501. Connecting threaded post; 502. Stabilizing baffle; 503. Rectangular through slot; 504. Docking block; 505. Fastening slot; 506. Internal thread fastening cap; 507. Auxiliary through slot; 508. Rubber clamp; 509. Auxiliary pull head; 510. Auxiliary protrusion; 6. Auxiliary connecting cavity slot; 701. First connecting rod; 702. External threaded docking post head; 703. Limiting baffle; 704. Second connecting rod; 705. Internal threaded pull tube fitting; 706. Limiting ring; 707. Docking slot; 708. Positioning threaded hole; 709. Positioning screw. Detailed Implementation

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1-12 A waveguide converter for a filter includes a converter body 1, a transmitting optical fiber 2, a receiving optical fiber 3, a mounting connection assembly, and a stabilizing assembly.

[0036] The present invention also provides symmetrical connection ports 11 at both ends of the converter body 1, and symmetrical connection side plates 12 are provided on the sides of the connection ports 11, with a first mounting hole 13 through the connection side plate 12; the transmitting optical fiber 2 is connected to the connection port 11 at one end of the converter body 1, and a mounting plate 41 is fixedly provided on the side of the transmitting optical fiber 2, with a second mounting hole 42 provided on the mounting plate 41.

[0037] In this solution, the connection and fixing of the transmitting optical fiber 2 and the converter body 1 is performed by inserting the plug of the transmitting optical fiber 2 into the connection socket 11 at the end of the converter body 1 until the mounting plate 41 on the transmitting optical fiber 2 is tightly attached to the connection side plate 12 at the end of the converter body 1. At the same time, the second mounting hole 42 on the mounting plate 41 is aligned with the first mounting hole 13 on the connection side plate 12. Then, the connection and fixing are performed by the installation connection assembly. Here, one end of the connecting threaded post 501 in the installation connection assembly is fixedly provided with a stabilizing baffle 502, and the side wall of the connecting threaded post 501 is provided with rectangular through grooves 503 at equal intervals. The other end of the connecting threaded post 501 is fixedly provided with a mating block 504, and a fastening clip is provided in the mating block 504. The groove 505, the mating plug 504, and the stabilizing component are connected; the rectangular through grooves 503 are connected to each other; the connecting threaded post 501 and the internal thread fastening cap 506 are threadedly connected, and the side wall of the internal thread fastening cap 506 is provided with auxiliary through grooves 507 at equal intervals. The groove width of the auxiliary through groove 507 is greater than the groove width of the rectangular through groove 503. The end diameter of the connecting threaded post 501 and the hole diameter of the first mounting hole 13 are set to be equal; that is, the connecting threaded post 501 is inserted into the second mounting hole 42 on the mounting plate 41, and then passes through the first mounting hole 13 on the connecting side plate 12, so that the stabilizing baffle 502 at one end of the connecting threaded post 501 is tightly attached to the mounting plate 41, and then the internal thread fastening cap 506 is screwed tightly to the connecting threaded post 501.

[0038] To further improve the threaded connection stability between the threaded post 501 and the internal thread fastening cap 506, i.e., to improve the connection stability between the transmitting optical fiber 2 and the converter body 1, this solution also includes a rubber clamp 508. One end of the rubber clamp 508 is fixedly equipped with an auxiliary pull head 509, and auxiliary inclined surfaces are symmetrically arranged on both sides of the rubber clamp 508. Auxiliary protrusions 510 are fixedly arranged at equal intervals on the auxiliary inclined surfaces. The symmetrically arranged auxiliary inclined surfaces on both sides of the rubber clamp 508 result in a narrower head for the rubber clamp 508. This allows the head of the rubber clamp 508 to be directly pulled from one of the auxiliary surfaces on the side of the internal thread fastening cap 506 after tightening. Insert the through groove 507 until the head of the rubber clamp 508 is inserted into the rectangular through groove 503 at the corresponding position on the side of the connecting threaded post 501. This provides a locking function for the threaded connection between the internal thread fastening cap 506 and the connecting threaded post 501. It should be noted that after tightening the internal thread fastening cap 506, the auxiliary through groove 507 on the internal thread fastening cap 506 may be aligned with, misaligned with, or blocked from the rectangular through groove 503 on the side of the connecting threaded post 501. When inserting the rubber clamp 508, simply find that the auxiliary through groove 507 is aligned with or partially intersected with the rectangular through groove 503.

[0039] When using the rubber chuck 508 to lock the connection between the internal thread fastening cap 506 and the connecting threaded post 501, in order to improve the locking stability of the rubber chuck 508, this solution also provides an auxiliary protrusion 510 on the auxiliary inclined surface on the side of the rubber chuck 508 to provide an anti-slip function; an auxiliary pull head 509 is provided at the tail end of the rubber chuck 508, which makes it easy to pull out the rubber chuck 508 when it is necessary to release the connection between the internal thread fastening cap 506 and the connecting threaded post 501, thus improving the ease of operation.

[0040] In this scheme, the receiving optical fiber 3 is fixedly connected and plugged into the other end of the converter body 1. The side of the receiving optical fiber 3 is also fixedly provided with a mounting plate 41. The second mounting hole 42 on the mounting plate 41 corresponds to the first mounting hole 13 on the connecting side plate 12 in terms of position, number of sets, and hole diameter. The installation of the receiving optical fiber 3 is the same as the installation of the transmitting optical fiber 2.

[0041] After connecting the transmitting optical fiber 2 and the receiving optical fiber 3 to both ends of the converter body 1, a stabilizing component and a mounting connection component can be used together. In short, the transmitting optical fiber 2 and the receiving optical fiber 3 are fixedly connected to the converter body 1 through the mounting connection component and tightened by the stabilizing component. This further improves the stability of the connection between the transmitting optical fiber 2 and the receiving optical fiber 3, and also has a corresponding positive effect on the overall stability of the converter. The first connecting rod 701 in the stabilizing component has a mating slot 707 on one end face. The mating slot 707 is adapted to the mating block 504 for insertion. The mating slot 707 also has symmetrically arranged positioning threaded holes 708 on its side, which are threadedly connected to positioning screws 709. The first connecting rod 701... The other end is fixedly provided with an external threaded mating head 702. The positioning threaded hole 708 and the fastening groove 505 on the mating block 504 are positioned correspondingly. The groove shape of the mating slot 707 is set to square, and the end shape of the mating block 504 is also set to square. One end of the second connecting rod 704 is fixedly provided with a limit stop 703, and the end face of the other end of the second connecting rod 704 is also provided with a mating slot 707. An internal threaded tie tube 705 is movably sleeved on the second connecting rod 704. A limit ring 706 is provided on the inner side wall of one end of the internal threaded tie tube 705. Anti-slip convex strips are fixedly provided at equal intervals on the outer side wall of the internal threaded tie tube 705. The internal threaded tie tube 705 and the external threaded mating head 702 are positioned correspondingly, have the same number of sets, and are threadedly connected to each other.

[0042] During operation, on the one hand, when connecting and installing the transmitting optical fiber 2 and the receiving optical fiber 3, the internal thread fastening cap 506 can be tightened first, and then the internal thread pull fitting 705 and the external thread mating post 702 can be threaded together by rotating the internal thread pull fitting 705, so that the first connecting rod 701 and the second connecting rod 704 form a pull action, which is not only beneficial to the stable connection between the transmitting optical fiber 2 and the receiving optical fiber 3, but also has a corresponding positive effect on the overall stability of the converter.

[0043] To ensure a stable connection between the transmitting fiber 2 and the receiving fiber 3, this solution allows for the following steps: after the connecting threaded post 501 passes through the second mounting hole 42 and the first mounting hole 13, the internal threaded fastening cap 506 is first threaded onto the connecting threaded post 501, but does not need to be tightened. Then, the mating insert 504 at the end of one connecting threaded post 501 is inserted into the mating slot 707 at one end of the first connecting rod 701, and the mating insert 504 at the end of the other connecting threaded post 501 is inserted into the mating slot 707 at one end of the second connecting rod 704. At this point, it is assumed that... The fastening slot 505 on the mating block 504 is aligned with the positioning threaded hole 708 on the side of the mating slot 707, and then fixed by the positioning screw 709. After the connection is fixed, the external threaded mating post 702 at the other end of the first connecting rod 701 does not contact the limiting stop 703 at the end of the second connecting rod 704, and there is still a certain distance between them. At this time, the internal threaded tie tube 705 is directly rotated until the internal threaded tie tube 705 is threadedly connected to the external threaded mating post 702. Finally, the external threaded mating post is tightened. The head 702 provides a pulling force between the first connecting rod 701 and the second connecting rod 704. This pulling force simultaneously tightens the stabilizing baffle 502 at one end of the connecting threaded post 501 against the mounting plate 41, and also tightens the mounting plate 41 against the connecting side plate 12 at the end of the converter body 1. Then, the internal thread fastening cap 506 is rotated until it is tightened. During this process, the pulling force between the first connecting rod 701 and the second connecting rod 704 helps to stabilize the position of the connecting threaded post 501. Finally, the internal thread fastening cap is tightened. When tightening the internal thread fastening cap 506, it is no longer necessary to pinch or press the stabilizing baffle 502 by hand to tighten the internal thread fastening cap 506. Under normal circumstances, it is necessary to use auxiliary tools such as wrenches to fix the stabilizing baffle 502 in order to tighten the internal thread fastening cap 506 better. However, this operation can be performed without the aid of auxiliary tools. After tightening the internal thread fastening cap 506, the rubber chuck 508 can be used to lock it in place. In addition, when rotating or loosening the internal thread tie pipe fitting 705, this solution also provides anti-slip protrusions on the outer wall of the internal thread tie pipe fitting 705 to facilitate the operation of the staff.

[0044] When using the installation and connection components, during the tightening of the internal thread fastening cap 506 and the connecting threaded post 501, the auxiliary through groove 507 provided on the side of the internal thread fastening cap 506 can, on the one hand, cooperate with the rectangular through groove 503 on the side of the connecting threaded post 501, and use the rubber clip 508 to insert and provide a locking action; on the other hand, the auxiliary through groove 507 provided on the side of the internal thread fastening cap 506 can also provide an anti-slip function when loosening or tightening the internal thread fastening cap 506, that is, the auxiliary through groove 507 at this time is equivalent to an anti-slip groove.

[0045] The auxiliary through groove 507 in the internal thread fastening cap 506 and the rectangular through groove 503 in the connecting threaded post 501, in addition to providing a locking function when used with the rubber clamp 508, can also be used with the auxiliary connecting cavity groove 6. That is, the auxiliary connecting cavity groove 6 is symmetrically arranged in the connecting side plate 12. One end of the auxiliary connecting cavity groove 6 is connected to the first mounting hole 13, and the other end of the auxiliary connecting cavity groove 6 is connected to the end connection socket 11 of the converter body 1. After the connecting threaded post 501 passes through the first mounting hole 13 on the connecting side plate 12, the rectangular through groove 503 at the corresponding position on the connecting threaded post 501 is connected to the auxiliary connecting cavity groove 6, and the rectangular through groove 503 is connected to the outside. After the transmitting optical fiber 2 and the receiving optical fiber 3 are connected to the converter body 1, they can also provide a corresponding auxiliary cooling effect for the heat at the connection point when processing information, which can also provide a certain positive help for the stable operation of the converter.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waveguide converter for a filter, characterized in that: Includes converter body (1), transmitting optical fiber (2), receiving optical fiber (3), mounting connection assembly and stabilization assembly; The converter body (1) has symmetrically arranged connection sockets (11) at both ends, and symmetrically arranged connection side plates (12) at the side positions of the connection sockets (11), and a first mounting hole (13) is provided through the connection side plate (12). The transmitting optical fiber (2) is connected to one end of the converter body (1) via a connector (11), and a mounting plate (41) is fixedly provided on the side of the transmitting optical fiber (2), and a second mounting hole (42) is provided on the mounting plate (41). The transmitting optical fiber (2) is fixedly connected to one end of the converter body (1) by a set installation connection component and is fastened by a set stabilizing component; The installation connection assembly includes a connecting threaded post (501), a stabilizing baffle (502), a rectangular through slot (503), a mating block (504), a fastening slot (505), an internal thread fastening cap (506), an auxiliary through slot (507), a rubber clamp (508), an auxiliary pull head (509), and an auxiliary protrusion (510). One end of the connecting threaded post (501) is fixedly provided with a stabilizing baffle (502), and the side wall of the connecting threaded post (501) is provided with rectangular through slots (503) at equal intervals. The other end of the connecting threaded post (501) is fixedly provided with a mating block (504), and the mating block (504) is provided with a fastening slot (505). The mating block (504) is connected to the stabilizing assembly. The rectangular through slots (503) are connected to each other.

2. A waveguide converter for a filter according to claim 1, characterized in that: The receiving optical fiber (3) is plugged into the other end of the converter body (1), and a mounting plate (41) is also fixedly installed on the side of the receiving optical fiber (3). The second mounting hole (42) on the mounting plate (41) corresponds to the first mounting hole (13) on the connecting side plate (12), has the same number of sets, and the hole diameters of the two are equal.

3. A waveguide converter for a filter according to claim 1, characterized in that: The connecting side plate (12) is symmetrically provided with auxiliary connecting cavity grooves (6). One end of the auxiliary connecting cavity groove (6) is connected to the first mounting hole (13), and the other end of the auxiliary connecting cavity groove (6) is connected to the end connection port (11) of the converter body (1).

4. A waveguide converter for a filter according to claim 1, characterized in that: The connecting threaded post (501) is threadedly connected to the internal thread fastening cap (506). The internal thread fastening cap (506) has auxiliary through grooves (507) equidistantly arranged on its side wall. The width of the slot of the auxiliary through groove (507) is greater than the width of the slot of the rectangular through groove (503). The end diameter of the connecting threaded post (501) is equal to the diameter of the first mounting hole (13).

5. A waveguide converter for a filter according to claim 1, characterized in that: An auxiliary pull head (509) is fixedly provided at one end of the rubber clip (508), and auxiliary inclined surfaces are symmetrically provided on both sides of the rubber clip (508), and auxiliary protrusions (510) are fixedly provided at equal intervals on the auxiliary inclined surfaces.

6. A waveguide converter for a filter according to claim 1, characterized in that: The stabilizing assembly includes a first connecting rod (701), an externally threaded mating head (702), a limiting stop plate (703), a second connecting rod (704), an internally threaded tie rod (705), a limiting ring (706), a mating slot (707), a positioning threaded hole (708), and a positioning screw (709); one end of the first connecting rod (701) is provided with a mating slot (707), which is adapted to be inserted into the mating block (504), and the mating slot... (707) has symmetrically arranged positioning threaded holes (708) on its side. The positioning threaded holes (708) are threadedly connected to the positioning screws (709). The other end of the first connecting rod (701) is fixedly provided with an external threaded docking head (702). The positioning threaded holes (708) and the fastening slots (505) on the docking blocks (504) are positioned in a corresponding manner. The slot shape of the docking slot (707) is set to square, and the end shape of the docking blocks (504) is also set to square.

7. A waveguide converter for a filter according to claim 6, characterized in that: One end of the second connecting rod (704) is fixedly provided with a limit stop plate (703), and the end face of the other end of the second connecting rod (704) is also provided with a mating slot (707). An internal threaded tie tube (705) is movably sleeved on the second connecting rod (704), and a limit ring (706) is provided on the inner side wall of one end of the internal threaded tie tube (705).

8. A waveguide converter for a filter according to claim 6, characterized in that: The outer wall of the internal threaded tie pipe fitting (705) is fixedly provided with anti-slip convex strips at equal intervals. The internal threaded tie pipe fitting (705) and the external threaded mating column head (702) are positioned in the same way and have the same number of sets. They are also matched with each other by threaded connection.

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