Cavity filter and communication equipment

Abstract

The utility model relates to the technical field of communication equipment, in particular to a cavity filter and communication equipment, which comprises a cavity filter main body, one end of the cavity filter main body is fixedly connected with an input end, and the other end of the cavity filter main body is fixedly connected with an output end. The two ends of the cavity filter body are symmetrically and fixedly connected with two sets of auxiliary connecting assemblies, one end of the input end and one end of the output end are each fixedly connected with a set of connecting wires, and one ends of the connecting wires are slidably connected with locking sliding pipes in an inserted mode. According to the cavity filter and the communication equipment provided by the utility model, the input end and the output end at the two ends of the cavity filter main body are fixedly connected with the auxiliary connecting assembly, and the auxiliary connecting assembly is inserted and fixed with the locking sliding pipe on the connecting line; therefore, besides threaded connection between the connecting line and the output end and between the connecting line and the input end, auxiliary fixed connection is added, the connection firmness of the connecting line is improved, and signal transmission interruption caused by loosening of the connecting line in the using process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication equipment technical field, concretely is a cavity filter and communication equipment. BACKGROUND

[0002] A cavity filter is often used in communication equipment, which is a high-frequency filter based on the principle of metal cavity resonance. It realizes signal screening of a specific frequency band through multiple reflections and resonances of electromagnetic waves in a closed cavity. The core is composed of multiple coupled metal cavities. The center frequency, bandwidth and out-of-band suppression performance are precisely controlled by adjusting the cavity size, shape and internal tuning structure. It has advantages such as high Q value, low insertion loss and large power capacity.

[0003] The existing patent CN215527909U discloses a cavity filter. The purpose is to provide a cavity filter that can effectively prevent debris from entering the interior of the filter, has a simple structure, is convenient for directly modifying existing filters, and has strong practicality. The technical scheme adopted is: a cavity filter includes a cover plate and a plurality of tuning screws arranged on the cover plate. The cover plate is provided with a protection assembly for shielding the tuning screws. The protection assembly includes a mounting plate arranged on the cover plate. The mounting plate is provided with a plurality of through holes corresponding to the tuning screws. The tuning screws are arranged in the through holes. The tuning screws are provided with elastic protective covers. The lower end of the protective cover is connected to the edge of the through hole.

[0004] The above-mentioned scheme and the cavity filter used in the communication equipment of the prior art usually include a cavity filter main body, an input end and an output end. The input end and the output end are connected to the connecting lines through threaded connections, respectively, for signal input and output. However, during use, the device may be loosened due to vibration and human error, causing the signal transmission to be insensitive. Therefore, there is a need to improve and optimize the structure of the input end and the output end that lack firm connection. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a cavity filter and communication equipment to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cavity filter includes a cavity filter main body. One end of the cavity filter main body is fixedly connected to an input end head. The other end of the cavity filter main body is fixedly connected to an output end head. Two groups of auxiliary connection assemblies are symmetrically fixedly connected to the two ends of the cavity filter main body. One group of the auxiliary connection assemblies is fixedly connected to the middle of the input end head. The other group of the auxiliary connection assemblies is fixedly connected to the middle of the output end head. One end of the input end head and the output end head is respectively fixedly connected to a group of connecting lines. One end of the connecting lines is slidably inserted into a locking sliding tube.

[0007] Preferably, one end of the connecting line is fixedly connected with a rotating clamping block, one end of the rotating clamping block is rotatably clamped with a threaded cap, and the threaded cap is threadedly connected with the input end head or the output end head.

[0008] Preferably, two groups of limiting clamping blocks are symmetrically fixedly connected at one end of the connecting line, and one group of the limiting clamping blocks is provided with a first positioning groove.

[0009] Preferably, the locking sliding pipe is provided with a clamping groove at one end, is symmetrically provided with two groups of limiting insertion grooves in the middle, is provided with a second positioning groove at one end, and is provided with a third positioning groove at one end of the locking insertion groove and a fourth positioning groove at the other end.

[0010] Preferably, the auxiliary connecting assembly comprises a connecting block, the connecting block is provided with a locking insertion groove at one end, the connecting block is rotatably connected with a rotating clamping disc in the middle, the locking insertion groove is provided with a third positioning groove at one end and a fourth positioning groove at the other end, and the connecting block is symmetrically provided with a pin slot at two ends.

[0011] Preferably, a locking pin is inserted into the pin slot, the locking pin is fixedly connected with a spring at one end, the spring is fixedly connected to the inner wall of the pin slot at one end, and the locking pin is fixedly connected with a handle at one end.

[0012] Preferably, the rotating clamping disc is fixedly connected with a clamping head at one end, and is provided with two groups of locking holes at one end.

[0013] A kind of communication equipment, comprising a cavity filter.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The cavity filter and the communication equipment mainly fix auxiliary connecting assembly on the input end head and the output end head of the cavity filter main body, and fix the locking sliding pipe on the connecting line through the auxiliary connecting assembly, so that the connecting line is fixedly connected with the output end and the input end in addition to threaded connection, the connecting firmness of the connecting line is increased, and the signal transmission interruption caused by the loosening of the connecting line in use is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a kind of cavity filter and the structural schematic view of communication equipment;

[0017] Figure 2 It is Figure 1 It is the enlarged schematic view of A part in the middle;

[0018] Figure 3 It is a kind of cavity filter and the partial structure sectional view of communication equipment;

[0019] Figure 4 For Figure 3 Enlarged view of middle B part;

[0020] Figure 5 For Figure 3 Enlarged view of middle C part.

[0021] In the figure: cavity filter body 1, input end head 2, output end head 3, connecting block 401, locking slot 402, rotating clamping disc 403, third positioning groove 404, fourth positioning groove 405, pin groove 406, locking pin 407, spring 408, handle 409, clamping head 410, locking hole 411, connecting line 5, locking sliding pipe 6, rotating clamping block 7, threaded cover 8, limiting clamping block 9, first positioning groove 10, clamping groove 11, limiting slot 12, second positioning groove 13. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme of the utility model to carry out clearly, completely describe, and the advantage is more clear and distinct, the following combining with the figure to the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0023] Please refer to Figures 1-5 The utility model provides the following two preferred scheme embodiments:

[0024] Embodiment one: a cavity filter includes cavity filter body 1, one end of cavity filter body 1 is fixedly connected with input end head 2, the other end of cavity filter body 1 is fixedly connected with output end head 3, two groups of auxiliary connecting assemblies are fixedly connected to the both ends of cavity filter body 1, one group of auxiliary connecting assemblies is fixedly connected to the middle of input end head 2, another group of auxiliary connecting assemblies is fixedly connected to the middle of output end head 3, one end of input end head 2 and output end head 3 is fixedly connected with a group of connecting lines 5, one end of connecting line 5 is slidably inserted with locking sliding pipe 6.

[0025] A kind of communication equipment, including a kind of cavity filter.

[0026] When using, one end of cavity filter body is fixedly connected with input end head 2, the other end is fixedly connected with output end head 3, and one group of auxiliary connecting assemblies is fixedly connected to the both ends respectively, the pre-connection of connecting line 5 is completed by the threaded connection of input end head 2 or output end head 3 through connecting line 5, and firm connection is realized by the insertion locking between locking sliding pipe 6 and auxiliary connecting assembly.

[0027] The embodiment two is based on the embodiment one, one end of the connecting line 5 is fixedly connected with a rotating clamping block 7, one end of the rotating clamping block 7 is rotatably clamped with a threaded cover 8, the threaded cover 8 is threadedly connected with the input end head 2 or the output end head 3; one end of the connecting line 5 is fixedly connected with two groups of limiting clamping blocks 9, one group of the limiting clamping blocks 9 is provided with a first positioning groove 10; one end of the locking sliding pipe 6 is provided with a clamping groove 11, the middle part of the locking sliding pipe 6 is symmetrically provided with two groups of limiting insertion grooves 12, one end of the locking sliding pipe 6 is provided with a second positioning groove 13; the auxiliary connecting assembly comprises a connecting block 401, one end of the connecting block 401 is provided with a locking insertion groove 402, the middle part of the connecting block 401 is rotatably connected with a rotating clamping disc 403, one end of the locking insertion groove 402 is provided with a third positioning groove 404, the other end of the locking insertion groove 402 is provided with a fourth positioning groove 405, both ends of the connecting block 401 are symmetrically provided with pin grooves 406; the pin grooves 406 are inserted with locking pins 407, one end of the locking pin 407 is fixedly connected with a spring 408, one end of the spring 408 is fixedly connected with the inner wall of the pin groove 406, one end of the locking pin 407 is fixedly connected with a handle 409; one end of the rotating clamping disc 403 is fixedly connected with a clamping head 410, one end of the rotating clamping disc 403 is provided with two groups of locking holes 411.

[0028] When in use, before the connecting line 5 is inserted, the first positioning groove 10 is aligned with the third positioning groove 404, the threaded cover 8 is screwed to connect the end head of the connecting line 5 with the input end head 2 or the output end head 3, the second positioning groove 13 on the locking sliding pipe 6 is aligned with the fourth positioning groove 405 and is slid into the locking insertion groove 402, at this time, the limiting clamping block 9 is inserted into the limiting insertion groove 12 and is rotatably locked, the rotating clamping disc 403 is rotated to make the clamping head 410 clamped in the clamping groove 11, at this time, the locking pin 407 is pressed into the locking hole 411 under the action of the spring 408 and is locked, and the firm connection of the connecting line 5 is completed, when disassembling, the handle 409 is simultaneously pulled to make it separated from the locking hole 411, the rotating clamping disc 403 is rotated to make the clamping head 410 separated from the clamping groove 11, at this time, the connecting line 5 can be pulled out by pulling out the locking sliding pipe 6 and unscrewing the threaded cover 8.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cavity filter, comprising a cavity filter body (1), one end of the cavity filter body (1) is fixedly connected with an input end head (2), the other end of the cavity filter body (1) is fixedly connected with an output end head (3), characterized in that: Two groups of auxiliary connecting assemblies are symmetrically and fixedly connected at both ends of the cavity filter body (1), one group of the auxiliary connecting assemblies is fixedly connected at the middle part of the input end head (2), the other group of the auxiliary connecting assemblies is fixedly connected at the middle part of the output end head (3), one end of the input end head (2) and the output end head (3) is fixedly connected with a group of connecting lines (5), one end of the connecting line (5) is slidably inserted with a locking sliding tube (6).

2. The cavity filter of claim 1, wherein: One end of the connecting line (5) is fixedly connected with a rotating clamping block (7), one end of the rotating clamping block (7) is rotatably clamped with a threaded cover (8), the threaded cover (8) is threadedly connected with the input end head (2) or the output end head (3).

3. The cavity filter of claim 1, wherein: One end of the connecting line (5) is symmetrically and fixedly connected with two groups of limiting clamping blocks (9), one group of the limiting clamping blocks (9) is provided with a first positioning groove (10).

4. The cavity filter of claim 1, wherein: One end of the locking sliding tube (6) is provided with a clamping groove (11), the middle part of the locking sliding tube (6) is symmetrically provided with two groups of limiting insertion grooves (12), one end of the locking sliding tube (6) is provided with a second positioning groove (13).

5. The cavity filter of claim 1, wherein: The auxiliary connecting assembly comprises a connecting block (401), one end of the connecting block (401) is provided with a locking insertion groove (402), the middle part of the connecting block (401) is rotatably connected with a rotating clamping disc (403), one end of the locking insertion groove (402) is provided with a third positioning groove (404), the other end of the locking insertion groove (402) is provided with a fourth positioning groove (405), both ends of the connecting block (401) are symmetrically provided with pin grooves (406).

6. A cavity filter according to claim 5, characterized in that: The pin groove (406) is inserted with a locking pin (407), one end of the locking pin (407) is fixedly connected with a spring (408), one end of the spring (408) is fixedly connected with the inner wall of the pin groove (406), one end of the locking pin (407) is fixedly connected with a handle (409).

7. The cavity filter of claim 5, wherein: One end of the rotating clamping disc (403) is fixedly connected with a clamping head (410), one end of the rotating clamping disc (403) is provided with two groups of locking holes (411).

8. A communication device, characterized by: The cavity filter comprises the auxiliary connecting assembly. The cavity filter comprises the auxiliary connecting assembly.

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