Cavity filter and filter cover plate

Abstract

The utility model relates to the technical field of cavity filters, in particular to a cavity filter and a filter cover plate, which comprise a filter cavity and a filter cover plate main body, a filter cover plate main body is arranged at the upper end of the filter cavity, and a fixing block is fixedly arranged on the side wall of the filter cavity; a connecting assembly and an auxiliary assembly are arranged on the filter cover plate main body; through the connection assembly and the auxiliary assembly arranged on the filter cover plate main body, and through cooperative use of the fixing pin, the positioning rod, the connection rod, the clamping plate and other structures, the filter cover plate main body and the cavity filter are fixedly mounted, and the filter cover plate main body is simple to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to cavity filter technical field, concretely to a cavity filter and filter cover plate. BACKGROUND

[0002] The Chinese patent file with the prior publication number CN219937342U discloses a cavity filter convenient to install, which proposes that the edges on both sides of the bottom surface of the cavity filter shell are fixedly connected with connecting ears, and a connecting hole is formed in the middle of one side of the two connecting ears.

[0003] The above-mentioned scheme and the cavity filter in the prior art usually include a seat body and a cover plate. Most of the existing cover plates are installed on the seat body through a plurality of screws. The dense number of screws has a great impact on production and manufacturing, mainly in terms of production efficiency. A large amount of time is consumed for disassembling and assembling the screws, so that the manufacturing cost is difficult to reduce. Meanwhile, the production cycle of the filter is increased. From the perspective of the traditional dense screw structure, it is not conducive to production and manufacturing. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a cavity filter and a filter cover plate to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cavity filter, comprising: a filter cavity and a filter cover plate main body; the upper end of the filter cavity is provided with the filter cover plate main body, and the side wall of the filter cavity is fixedly provided with a fixed block;

[0006] The filter cover plate main body is connected with the filter cavity through the connecting assembly and the auxiliary assembly.

[0007] Preferably, the connecting assembly comprises a fixed groove, a fixed hole, and a fixed pin; the fixed groove is fixedly arranged at the upper end face of the filter cavity at equal intervals, the filter cover plate main body is fixedly provided with the fixed hole, the upper and lower ends of the fixed pin are both fixedly provided with external threads, the lower end of the fixed pin is threadedly connected with the fixed groove in a matched manner, and the upper end of the fixed pin is threadedly connected with the cross nut in a matched manner through the fixed hole.

[0008] Preferably, the bottom end of the filter cover plate body is fixedly provided with a sealing gasket.

[0009] Preferably, the auxiliary assembly comprises a positioning slot, a positioning rod and a through hole; the positioning slot is fixedly arranged at the upper end face of the filter cavity in equal intervals, the bottom end of the filter cover plate body is fixedly provided with the positioning rod in equal intervals, the positioning rod is connected to the positioning slot in a matched mode, and the positioning rod is fixedly provided with the through hole.

[0010] Preferably, the filter cavity is fixedly provided with a connecting hole, the connecting rod is connected to the connecting hole in a matched mode, the connecting rod is fixedly provided with the limiting slot, both ends of the connecting rod are provided with external threads, and the connecting rod is fixed to the side wall of the filter cavity through the cross nut.

[0011] Preferably, the side wall of the filter cavity is provided with a clamping plate, the clamping plate is fixedly provided with a fixing hole, the fixing hole is connected to the connecting rod in a matched mode, the fixing hole is fixedly provided with a limiting block, and the limiting block is connected to the limiting slot in a matched mode.

[0012] A cavity filter for a filter cover plate comprises the cavity filter.

[0013] Compared with the prior art, the cavity filter and the filter cover plate have the following beneficial effects:

[0014] The cavity filter and the filter cover plate have the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a whole structure schematic view of the utility model Figure 1 It is an enlarged schematic view of structure A in the utility model;

[0017] Figure 3 It is a structure schematic view of the filter cavity in the utility model;

[0018] Figure 4 It is a structure schematic view of the filter cover plate body in the utility model;

[0019] Figure 5 It is a structure schematic view of the clamping plate in the utility model.

[0020] In the figure: filter cavity 1, filter cover plate body 2, fixed groove 3, fixed hole 4, fixed pin 5, cross nut 6, sealing gasket 7, positioning groove 8, positioning rod 9, through hole 10, connecting hole 11, connecting rod 12, limiting groove 13, clamping plate 14, fixed hole 15, limiting block 16. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme of the utility model to carry out clearly, complete description, 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.

[0022] Please refer to Figures 1 to 5 The utility model provides three technical schemes:

[0023] Embodiment one: a cavity filter, including: filter cavity 1 and filter cover plate body 2, the upper end of filter cavity 1 is provided with filter cover plate body 2, and the side wall of filter cavity 1 is fixedly provided with fixed block, filter cover plate body 2 is connected with filter cavity 1 through the setting of connecting assembly and auxiliary assembly.

[0024] Embodiment two: on the basis of embodiment one, the fixed groove 3 in connecting assembly is equidistantly fixedly arranged on the upper end surface of filter cavity 1, and the fixed hole 4 is fixedly arranged on filter cover plate body 2, and the outer threads are fixedly arranged on the upper and lower ends of fixed pin 5, and the lower end of fixed pin 5 is adaptively connected with fixed groove 3 through threads, and the upper end of fixed pin 5 is adaptively connected with cross nut 6 through threads, and the sealing gasket 7 is fixedly arranged on the bottom end of filter cover plate body 2.

[0025] After the fixed pin 5 is fixedly connected with the fixed groove 3 on the filter cavity 1 through threads, the fixed hole 4 on the filter cover plate body 2 is placed corresponding to the fixed pin 5, then the cross nut 6 at the end of fixed pin 5 is rotated, and the filter cover plate body 2 is fixedly connected with the filter cavity 1.

[0026] Embodiment three: on the basis of embodiment two, the positioning groove 8 in auxiliary assembly is equidistantly fixedly arranged on the upper end surface of filter cavity 1, and the positioning rod 9 is equidistantly fixedly arranged on the bottom end of filter cover plate body 2, and the positioning rod 9 is adaptively connected with the positioning groove 8, and the through hole 10 is fixedly arranged on the positioning rod 9.

[0027] The filter cavity 1 is fixedly provided with a connecting hole 11, and a connecting rod 12 is connected to the connecting hole 11, and the connecting rod 12 is fixedly provided with a limiting groove 13, and both ends of the connecting rod 12 are provided with external threads, and the connecting rod 12 is fixed to the side wall of the filter cavity 1 through the cross nut 6.

[0028] The side wall of the filter cavity 1 is provided with a clamping plate 14, and the clamping plate 14 is fixedly provided with a fixed hole 15, and the fixed hole 15 is connected to the connecting rod 12, and the fixed hole 15 is fixedly provided with a limiting block 16, and the limiting block 16 is connected to the limiting groove 13.

[0029] A cavity filter for a filter cover plate comprises the cavity filter.

[0030] When the filter cover plate body 2 is installed and fixed, the fixed pin 5 is threadedly connected and fixed to the fixed groove 3 on the filter cavity 1, the fixed hole 4 on the filter cover plate body 2 is placed corresponding to the fixed pin 5, the cross nut 6 at the end of the fixed pin 5 is rotated, the filter cover plate body 2 is fixedly connected to the filter cavity 1, the positioning rod 9 at the bottom end of the filter cover plate body 2 is connected to the positioning groove 8 on the filter cavity 1, the connecting rod 12 is inserted into the connecting hole 11 on one side of the filter cavity 1, the connecting rod 12 is connected to the through hole 10 on the positioning rod 9, the clamping plate 14 is clamped to the side wall of the filter cavity 1, the fixed holes 15 on both sides of the clamping plate 14 are connected to the connecting rod 12, the limiting blocks 16 in the fixed holes 15 are connected to the limiting grooves 13 on the connecting rod 12, and the cross nut 6 is rotated to connect the connecting rod 12, so that the clamping plate 14 is fixedly connected to the filter cavity 1 through the cross nut 6.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cavity filter comprising: Filter cavity (1) and filter cover plate body (2); the upper end of the filter cavity (1) is provided with filter cover plate body (2), and the side wall of the filter cavity (1) is fixedly provided with a fixed block; Its characterized in that: the filter cover plate body (2) is provided with a connecting assembly and an auxiliary assembly.

2. The cavity filter of claim 1, wherein: The connecting assembly comprises a fixed groove (3), a first fixed hole (4) and a fixed pin (5); the fixed groove (3) is fixedly arranged at the upper end face of the filter cavity (1) at equal intervals, the first fixed hole (4) is fixedly arranged on the filter cover plate body (2), the upper and lower ends of the fixed pin (5) are fixedly provided with external threads, the lower end of the fixed pin (5) is threadedly connected with the fixed groove (3), and the upper end of the fixed pin (5) penetrates through the first fixed hole (4) and is threadedly connected with the cross nut (6).

3. The cavity filter of claim 2, wherein: The bottom end of the filter cover plate body (2) is fixedly provided with a sealing gasket (7).

4. The cavity filter of claim 1, wherein: The auxiliary assembly comprises a positioning groove (8), a positioning rod (9) and a through hole (10); the positioning groove (8) is fixedly arranged at the upper end face of the filter cavity (1) at equal intervals, the bottom end of the filter cover plate body (2) is fixedly provided with the positioning rod (9) at equal intervals, the positioning rod (9) is connected with the positioning groove (8) in a matched manner, and the through hole (10) is fixedly arranged on the positioning rod (9).

5. The cavity filter of claim 4, wherein: The filter cavity (1) is fixedly provided with a connecting hole (11), the connecting rod (12) is connected in a matched manner in the connecting hole (11), the limiting groove (13) is fixedly arranged on the connecting rod (12), the two ends of the connecting rod (12) are provided with external threads, and the connecting rod (12) is fixed to the side wall of the filter cavity (1) through the cross nut (6).

6. The cavity filter of claim 5, wherein: The side wall of the filter cavity (1) is provided with a clamping plate (14), the second fixed hole (15) is fixedly arranged on the clamping plate (14), the second fixed hole (15) is connected with the connecting rod (12) in a matched manner, the limiting block (16) is fixedly arranged in the second fixed hole (15), and the limiting block (16) is connected with the limiting groove (13) in a matched manner.

7. A cavity filter cover plate, characterized by: The cavity filter cover plate is used for the cavity filter in any one of claims 1-6.

Images