Waveguide circulator

Abstract

The utility model discloses a waveguide circulator, and relates to the technical field of waveguide circulators. Comprising a cavity, a connecting base and a straight waveguide, the connecting base is arranged at the top of the cavity, an annular groove is formed in the top of the connecting base, a circular ring frame is movably arranged in the annular groove, the straight waveguide is fixedly arranged at the top of the circular ring frame, clamping grooves are formed in the two sides of the inner wall of the circular ring frame, and clamping blocks are movably arranged in the clamping grooves; the clamping block is in an L shape, a nut seat is fixedly arranged at one end of the clamping block, a screw rod is movably arranged on the inner wall of the nut seat, and one end of the screw rod penetrates through the interior of the connecting seat and extends to the exterior of the connecting seat. By arranging the locking rod, after one end of the locking rod is inserted into the locking groove in the connecting seat, the knob and the screw rod can be locked, so that the clamping block is prevented from accidentally displacing, and the mounting stability between the cavity and the straight waveguide is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of waveguide circulators, in particular to a waveguide circulator. Background Art

[0002] A waveguide circulator is a microwave passive device with three ports. It uses the gyromagnetic effect of ferrite material under the action of an external DC magnetic field to deflect the microwave incident on the circulator at a certain angle and output it from the second port, while there is no output at the third port, thereby realizing the circulation of microwave signals.

[0003] Chinese utility model patent CN215220961U discloses a P-band high-power waveguide circulator, including a straight waveguide, a cavity, a connecting seat and a circular ring frame, a locking mechanism is provided on the inner side of the connecting seat, the locking mechanism includes an internal threaded tube, and the internal threaded tube is movably connected to the connecting seat, a reset spring is provided inside the internal threaded tube, and a first screw is provided on the front side of the internal threaded tube. The utility model rotates the internal threaded tube by moving the first screw backward, the rotating internal threaded tube drives the second screw forward, the second screw drives the second slider forward, the backward first slider and the forward second slider drive two L-shaped blocks to be embedded in the connecting seat, the circular ring frame at the bottom of the cavity is inserted into the connecting seat, the reset spring pushes the first screw and the second screw to move toward the two ends of the internal threaded tube, so that the two L-shaped blocks are stuck in the circular ring frame, and the assembly of the straight waveguide and the cavity is completed. The assembly and disassembly steps of the waveguide circulator are reduced, which is convenient for maintenance.

[0004] In order to achieve the installation between the straight waveguide and the cavity, the above-mentioned waveguide circulator is installed with an internal threaded tube, a ball bearing, a return spring, a first screw, a second screw, an L-shaped block and a push rod. However, the above-mentioned waveguide circulator does not have the function of locking the screw. Since the push rod at one end of the screw is directly exposed to the external environment, the screw is easily affected by the accidental force of external personnel or objects. If the external force acts on the screw, it will cause the block to be displaced, thereby affecting the stability of the installation between the straight waveguide and the cavity. Utility Model Content

[0005] The utility model provides a waveguide circulator to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waveguide circulator, comprising a cavity, a connection seat and a straight waveguide, the top of the cavity is provided with a connection seat, the top of the connection seat is provided with an annular groove, and a circular frame is movably provided inside the annular groove, the top of the circular frame is fixedly provided with a straight waveguide, both sides of the inner wall of the circular frame are provided with a card slot, and a card block is movably provided inside the card slot, the card block is L-shaped, a nut seat is fixedly provided at one end of the card block, and a screw is movably provided on the inner wall of the nut seat;

[0007] One end of the screw rod passes through the interior of the connecting seat and extends to the outside of the connecting seat, one end of the screw rod is fixedly provided with a knob, one side of the knob is movably provided with a locking rod, one end of the locking rod is movably inserted into a locking groove on one side of the outer wall of the connecting seat, the other end of the locking rod is fixedly provided with a movable plate, one side of the movable plate is fixedly provided with a pull rod, one end of the pull rod is fixedly provided with a pull ring, one side of the connecting seat is fixedly provided with a threaded ring, and a sealing cover is movably provided on the outer side of the threaded ring.

[0008] Furthermore, the connection relationship between the screw and the nut seat is a threaded connection, and threads in opposite directions are symmetrically provided on both sides of the screw.

[0009] Furthermore, a guide block is fixedly provided at the bottom of the nut seat, a guide rod is movably provided on the inner wall of the guide block, and the connection relationship between the guide rod and the guide block is a sliding connection.

[0010] Furthermore, the inner wall of the sealing cover is provided with an internal thread, the outer wall of the threaded ring is provided with an external thread, and the connection relationship between the threaded ring and the sealing cover is a threaded connection.

[0011] Furthermore, a return spring is sleeved on the surface of the pull rod.

[0012] Furthermore, the connection relationship between the clamping block and the circular ring frame is clamping.

[0013] Compared with the prior art, the utility model provides a waveguide circulator, which has the following beneficial effects:

[0014] 1. The waveguide circulator is provided with a locking rod. When one end of the locking rod is inserted into the locking groove on the connecting seat, the knob and the screw can be locked to prevent the block from accidentally moving, thereby enhancing the stability of the installation between the cavity and the straight waveguide.

[0015] 2. The waveguide circulator is provided with a sealing cover and a threaded ring. After the sealing cover is put on the threaded ring, the knob can be placed in an independent and closed space, which not only effectively prevents accidental collision of the knob by outsiders or objects, but also isolates pollutants in the external environment, significantly reducing the risk of erosion of the knob by pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural front view of the utility model;

[0018] Figure 3 This is a schematic diagram of the connecting seat structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the enlarged structure of part A of the utility model.

[0020] In the figure: 1, cavity; 2, connecting seat; 201, ring frame; 202, straight waveguide; 3, clamping block; 301, nut seat; 302, screw; 4, guide block; 401, guide rod; 5, knob; 501, locking rod; 502, moving plate; 503, pull rod; 504, reset spring; 505, pull ring; 6, threaded ring; 601, sealing cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model discloses a waveguide circulator, comprising a cavity 1, a connecting seat 2 and a straight waveguide 202, wherein the top of the cavity 1 is provided with a connecting seat 2, the top of the connecting seat 2 is provided with an annular groove, and a circular frame 201 is movably provided inside the annular groove, the top of the circular frame 201 is fixedly provided with a straight waveguide 202, both sides of the inner wall of the circular frame 201 are provided with a card slot, and a card block 3 is movably provided inside the card slot, the card block 3 is L-shaped, a nut seat 301 is fixedly provided at one end of the card block 3, and a screw 302 is movably provided on the inner wall of the nut seat 301;

[0023] One end of the screw rod 302 passes through the interior of the connecting seat 2 and extends to the outside of the connecting seat 2. A knob 5 is fixedly provided at one end of the screw rod 302. A locking rod 501 is movably provided on one side of the knob 5. One end of the locking rod 501 is movably inserted into a locking groove on one side of the outer wall of the connecting seat 2. A movable plate 502 is fixedly provided at the other end of the locking rod 501. A pull rod 503 is fixedly provided on one side of the movable plate 502. A pull ring 505 is fixedly provided on one end of the pull rod 503. A threaded ring 6 is fixedly provided on one side of the connecting seat 2. A sealing cover 601 is movably provided on the outer side of the threaded ring 6.

[0024] Specifically, the connection relationship between the screw rod 302 and the nut seat 301 is a threaded connection, and threads in opposite directions are symmetrically provided on both sides of the screw rod 302 .

[0025] In this embodiment, a screw rod 302 and a nut seat 301 are provided, and the screw rod 302 is driven to rotate by turning the knob 5. The rotating screw rod 302 drives the blocks 3 on both sides to move toward or away from each other through the nut seat 301. When one end of the block 3 is inserted into the slot on the circular frame 201, the circular frame 201 can be limited, thereby realizing the installation between the cavity 1 and the straight waveguide 202.

[0026] Specifically, a guide block 4 is fixedly provided at the bottom of the nut seat 301 , a guide rod 401 is movably provided on the inner wall of the guide block 4 , and the connection relationship between the guide rod 401 and the guide block 4 is a sliding connection.

[0027] In this embodiment, the guide block 4 is provided to guide the nut seat 301 so that the nut seat 301 can move stably.

[0028] Specifically, the inner wall of the sealing cover 601 is provided with an internal thread, the outer wall of the threaded ring 6 is provided with an external thread, and the connection relationship between the threaded ring 6 and the sealing cover 601 is a threaded connection.

[0029] In this embodiment, by providing internal threads and external threads, the sealing cover 601 can be rotated and displaced on the threaded ring 6 by twisting the sealing cover 601, thereby achieving installation or disassembly between the sealing cover 601 and the threaded ring 6.

[0030] Specifically, a return spring 504 is sleeved on the surface of the pull rod 503 .

[0031] In this embodiment, by providing a return spring 504 , when the pull ring 505 is released, the return spring 504 causes the locking rod 501 to return to its original position.

[0032] Specifically, the connection relationship between the clamping block 3 and the circular frame 201 is clamping.

[0033] In this embodiment, a block 3 is provided and the screw rod 302 is driven to rotate by turning the knob 5. The rotating screw rod 302 drives the blocks 3 on both sides to move toward or away from each other through the nut seat 301. When one end of the block 3 is moved out of the slot on the circular ring frame 201, the limit on the circular ring frame 201 can be released.

[0034] When in use, the circular frame 201 on the straight waveguide 202 is inserted into the annular groove on the connecting seat 2, and then the locking rod 501 is placed in the storage state by pulling the pull ring 505, and then the screw rod 302 is driven to rotate by turning the knob 5, and the rotating screw rod 302 drives the clamping blocks 3 on both sides to move toward or away from each other through the nut seat 301. When one end of the clamping block 3 is inserted into the clamping groove on the circular frame 201, the circular frame 201 can be limited, thereby realizing the installation between the cavity 1 and the straight waveguide 202;

[0035] Then, the pull ring 505 is released. After the pull ring 505 is released, the reset spring 504 restores the locking rod 501 to its original position. When one end of the locking rod 501 is inserted into the locking groove on the connecting seat 2, the knob 5 and the screw rod 302 can be locked, thereby preventing the block 3 from accidentally moving.

[0036] When the cavity 1 and the straight waveguide 202 are disassembled, one end of the locking rod 501 is moved out of the locking groove on the connecting seat 2 by pulling the pull ring 505, thereby releasing the lock of the knob 5 and the screw 302, and then the screw 302 is driven to rotate by turning the knob 5. The rotating screw 302 drives the blocks 3 on both sides to move toward or away from each other through the nut seat 301. When one end of the block 3 is moved out of the groove on the circular ring frame 201, the limit of the circular ring frame 201 can be released, thereby realizing the disassembly of the cavity 1 and the straight waveguide 202.

[0037] To summarize, the waveguide circulator, by providing a locking rod 501, when one end of the locking rod 501 is inserted into the locking groove on the connecting seat 2, can lock the knob 5 and the screw 302, thereby preventing the block 3 from accidentally moving, thereby enhancing the stability of the installation between the cavity 1 and the straight waveguide 202, and by providing a sealing cover 601 and a threaded ring 6, after the sealing cover 601 is put on the threaded ring 6, the knob 5 can be placed in an independent and closed space, which not only effectively prevents accidental collision of the knob 5 by outsiders or objects, but also isolates pollutants in the external environment, significantly reducing the risk of erosion of the knob 5 by pollutants.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waveguide circulator, comprising a cavity (1), a connection seat (2) and a straight waveguide (202), characterized in that: A connecting seat (2) is arranged at the top of the cavity (1), an annular groove is provided at the top of the connecting seat (2), a circular ring frame (201) is movably arranged inside the annular groove, a straight waveguide (202) is fixedly arranged at the top of the circular ring frame (201), a clamping groove is provided on both sides of the inner wall of the circular ring frame (201), a clamping block (3) is movably arranged inside the clamping groove, the clamping block (3) is L-shaped, a nut seat (301) is fixedly arranged at one end of the clamping block (3), and a screw rod (302) is movably arranged on the inner wall of the nut seat (301); One end of the screw rod (302) passes through the interior of the connecting seat (2) and extends to the outside of the connecting seat (2); a knob (5) is fixedly provided at one end of the screw rod (302); a locking rod (501) is movably provided on one side of the knob (5); one end of the locking rod (501) is movably inserted into a locking groove on one side of the outer wall of the connecting seat (2); a movable plate (502) is fixedly provided at the other end of the locking rod (501); a pull rod (503) is fixedly provided on one side of the movable plate (502); a pull ring (505) is fixedly provided on one end of the pull rod (503); a threaded ring (6) is fixedly provided on one side of the connecting seat (2); a sealing cover (601) is movably provided on the outer side of the threaded ring (6).

2. A waveguide circulator according to claim 1, characterized in that: The connection relationship between the screw rod (302) and the nut seat (301) is a threaded connection, and threads in opposite directions are symmetrically provided on both sides of the screw rod (302).

3. A waveguide circulator according to claim 1, characterized in that: A guide block (4) is fixedly provided at the bottom of the nut seat (301), a guide rod (401) is movably provided on the inner wall of the guide block (4), and the connection relationship between the guide rod (401) and the guide block (4) is a sliding connection.

4. A waveguide circulator according to claim 1, characterized in that: The inner wall of the sealing cover (601) is provided with an internal thread, the outer wall of the threaded ring (6) is provided with an external thread, and the connection relationship between the threaded ring (6) and the sealing cover (601) is a threaded connection.

5. A waveguide circulator according to claim 1, characterized in that: A return spring (504) is sleeved on the surface of the pull rod (503).

6. A waveguide circulator according to claim 1, characterized in that: The connection relationship between the clamping block (3) and the circular ring frame (201) is clamping.

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