Spliced filter cavity with adjustable length

Abstract

The utility model discloses a splicing type filter cavity with adjustable length, which relates to the technical field of tuned filtering, and comprises a first cavity, a second cavity is detachably arranged on the side surface of the first cavity, a plurality of resonance rods are fixedly connected in the first cavity and the second cavity, and the resonance rods are arranged in the first cavity and the second cavity. One side of the first cavity is fixedly connected with a signal input end, the side, away from the signal input end, of the first cavity is fixedly connected with a signal output end, a first top plate is installed on the upper surface of the first cavity, and a second top plate is installed on the upper surface of the second cavity; the side, close to the first top plate, of the second top plate is fixedly connected with a second U-shaped strip. The splicing type filter cavity with the adjustable length solves the problem that in the prior art, the filter cavity is usually produced according to needs, so that the size of the filter cavity is fixed, and the use flexibility of the filter cavity is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of tuning filtering, and particularly relates to a spliced filter cavity with adjustable length. Background Technique

[0002] A filter cavity is a filter housing for installing a filter element, usually made of metal or plastic materials. It is provided with filter element channels inside, which can filter impurities and dirt in the pipeline, thereby protecting the normal operation of equipment and systems, and can be applied to industries such as chemical industry, petrochemical industry, medicine, and environmental protection.

[0003] Existing technologies such as the utility model with the publication number of CN215732130U. This patent discloses a cavity filter, which belongs to the technical field of tuning filtering. It includes a cavity; at least two resonant rods are provided, and the at least two resonant rods are arranged at intervals along a first direction. Each resonant rod includes a plurality of monomeric resonant rods respectively fixed inside the cavity, and the plurality of monomeric resonant rods are arranged in sequence along a second direction, and the second direction is perpendicular to the first direction; a partition board is provided between every two adjacent resonant rods. One end of the partition board abuts against one end inner wall of the cavity, and the other end of the partition board is spaced from the other end inner wall of the cavity. A communication port is opened on the top surface of the partition board, and the monomeric resonant rods of two adjacent resonant rods can be electrically coupled through the communication port. The cavity filter provided by the utility model can generate transmission zeros without setting fly rods, so that the internal structure of the cavity filter is less and the assembly is simple.

[0004] The above-mentioned and existing related technologies often have the following defects: When the filter cavity is in use, it only needs to connect the signal input end and the signal output end respectively to be used. In the existing technology, the filter cavity is often produced according to needs, so that the size of the filter cavity is fixed, resulting in poor flexibility in the use of the filter cavity.

[0005] Therefore, we propose a spliced filter cavity with adjustable length. Content of the Utility Model

[0006] The purpose of the utility model is to provide a spliced filter cavity with adjustable length to solve the problems raised in the above background technique.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spliced filter cavity with adjustable length, comprising a first cavity, a second cavity is detachably mounted on the side of the first cavity, a plurality of resonant rods are fixedly connected inside the first cavity and the second cavity, a signal input end is fixedly connected to one side of the first cavity, a signal output end is fixedly connected to the side of the first cavity away from the signal input end, a first top plate is mounted on the upper surface of the first cavity, a second top plate is mounted on the upper surface of the second cavity, a second "U"-shaped strip is fixedly connected to the side of the second top plate close to the first top plate, a sealing plate is detachably mounted on the side of the second cavity away from the first cavity, and the sealing plate and the side of the second cavity close to the first cavity are both fixedly connected to the first "U"-shaped strip.

[0008] The effects achieved by the above components are: by setting the first cavity and the second cavity, the size of the filter cavity can be conveniently adjusted, by setting the sealing plate, the filter cavity can be closed, and by setting the first "U"-shaped strip and the second "U"-shaped strip, the sealing performance of the connection between the first cavity and the second cavity and the second cavity and the sealing plate can be improved.

[0009] Preferably, a first connection groove is formed on one side of the first cavity and the second cavity close to the sealing plate, and a second connection groove is formed on one side of the first top plate and the second top plate close to the sealing plate.

[0010] The effect achieved by the above components is that by providing the first connecting groove and the second connecting groove, the connection between the first cavity and the second cavity and between the second cavity and the sealing plate can be facilitated.

[0011] Preferably, a first blocking block is fixedly connected to a side of the sealing plate close to the second cavity, and a second blocking block is fixedly connected to a side of the sealing plate close to the first cavity.

[0012] The effect achieved by the above components is that by providing the first blocking block and the second blocking block, the first cavity or the second cavity can be conveniently sealed using a sealing plate, thereby ensuring the performance of the filter cavity as much as possible.

[0013] Preferably, both sides of the first cavity and the second cavity are fixedly connected with fixing columns, and the other ends of the fixing columns are rotatably connected with rotating plates.

[0014] The effect achieved by the above components is: by setting the fixing column, the rotating plate can be connected to the first cavity or the second cavity, and at the same time it can be ensured that the rotating plate can rotate.

[0015] Preferably, a screw is threadedly inserted into the inner wall of the rotating plate, the screw is threadedly inserted into the inner wall of the fixing column, and the inner wall of the rotating plate is slidably connected to a limiting rod.

[0016] The effects achieved by the above components are as follows: By setting the screw rod, the rotation of the rotating plate can be restricted, and by setting the limiting rod, the position of the rotating plate can be restricted.

[0017] Preferably, first limiting blocks are fixedly connected to both sides of the second cavity, and two second limiting blocks are fixedly connected to the side of the sealing plate away from the limiting rod.

[0018] The effects achieved by the above components are as follows: By setting the first limiting block, the second limiting block and the limiting rod, the position of the second cavity or the sealing plate can be fixed, so as to ensure the stable installation of the second cavity or the sealing plate as much as possible.

[0019] Preferably, a pulling plate is fixedly connected to the end of the limiting rod away from the first limiting block, a spring is sleeved on the surface of the limiting rod, and the two ends of the spring are fixedly connected to the pulling plate and the rotating plate respectively.

[0020] The effects achieved by the above components are as follows: By setting the pulling plate, the limiting rod can be conveniently moved, and at the same time, the spring can be conveniently installed. By setting the spring, the position of the limiting rod can be restricted.

[0021] Compared with the prior art, the beneficial effects of the present utility model are:

[0022] 1. In the present utility model, by setting the first connecting groove and the second connecting groove on the first cavity and the second cavity, and the first "U"-shaped strip and the second "U"-shaped strip, the size of the filter cavity can be conveniently spliced and adjusted, so as to improve the flexibility of the filter cavity in use. By setting the sealing plate, the filter cavity can be closed.

[0023] 2. In the present utility model, by setting the fixing column, the rotating plate can be ensured to rotate while being connected to the first cavity and the second cavity. By setting the first limiting block, the second limiting block and the limiting rod, the connection between the first cavity, the second cavity and the sealing plate can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 is an exploded structure diagram of the present utility model;

[0026] Figure 3 is a Figure 1 partial structure diagram of the present utility model;

[0027] Figure 4 is a Figure 2 partial structure diagram of the present utility model;

[0028] Figure 5This is a schematic structural diagram of the sealing plate of the utility model.

[0029] In the figure: 1 - first cavity; 2 - second cavity; 3 - sealing plate; 4 - signal input terminal; 5 - signal output terminal; 6 - resonant rod; 7 - first top plate; 8 - second top plate; 9 - fixing column; 10 - rotating plate; 11 - screw; 12 - first limiting block; 13 - limiting rod; 14 - pulling plate; 15 - spring; 16 - second limiting block; 17 - first connecting groove; 18 - second connecting groove; 19 - first "U"-shaped strip; 20 - second "U"-shaped strip; 21 - first blocking block; 22 - second blocking block. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Please refer to Figures 1-5 , the present utility model provides a technical solution: an adjustable-length spliced filter cavity, including a first cavity 1, a second cavity 2 is detachably installed on the side of the first cavity 1, and a plurality of resonant rods 6 are fixedly connected inside both the first cavity 1 and the second cavity 2. A signal input terminal 4 is fixedly connected to one side of the first cavity 1, a signal output terminal 5 is fixedly connected to the side of the first cavity 1 away from the signal input terminal 4, a first top plate 7 is installed on the upper surface of the first cavity 1, a second top plate 8 is installed on the upper surface of the second cavity 2, a second "U"-shaped strip 20 is fixedly connected to the side of the second top plate 8 close to the first top plate 7, a sealing plate 3 is detachably installed on the side of the second cavity 2 away from the first cavity 1, and a first "U"-shaped strip 19 is fixedly connected to both the sealing plate 3 and the side of the second cavity 2 close to the first cavity 1. By providing the first cavity 1 and the second cavity 2, the size of the filter cavity can be conveniently adjusted. By providing the sealing plate 3, the filter cavity can be closed. By providing the first "U"-shaped strip 19 and the second "U"-shaped strip 20, the sealing performance of the connection between the first cavity 1 and the second cavity 2 and between the second cavity 2 and the sealing plate 3 can be improved.

[0032] Next, the specific settings and functions of its overall structure will be described in detail.

[0033] As Figures 1-5As shown, the first cavity 1 and the second cavity 2 are provided with a first connection groove 17 on one side close to the sealing plate 3, and the first top plate 7 and the second top plate 8 are provided with a second connection groove 18 on one side close to the sealing plate 3. By providing the first connection groove 17 and the second connection groove 18, the connection between the first cavity 1 and the second cavity 2 and the second cavity 2 and the sealing plate 3 can be convenient. The sealing plate 3 is fixedly connected to the side close to the second cavity 2 with a first block 21, and the sealing plate 3 is fixedly connected to the side close to the first cavity 1 with a second block 22. By setting the first block 21 and the second block 22, the sealing plate 3 can be conveniently used to close the first cavity 1 or the second cavity 2, so as to ensure the performance of the filter cavity as much as possible. Both sides of the first cavity 1 and the second cavity 2 are fixedly connected with a fixed column 9, and the other end of the fixed column 9 is rotatably connected with a rotating plate 10. By setting the fixed column 9, the rotating plate 10 can be connected to the first cavity 1 or the second cavity 2, and the rotating plate 10 can be ensured to rotate.

[0034] The inner wall of the rotating plate 10 is threadedly inserted with a screw rod 11, and the screw rod 11 is threadedly inserted in the inner wall of the fixed column 9. The inner wall of the rotating plate 10 is slidably connected with a limit rod 13. By setting the screw rod 11, the rotation of the rotating plate 10 can be limited, and by setting the limit rod 13, the position of the rotating plate 10 can be limited. The first limit blocks 12 are fixedly connected to both sides of the second cavity 2, and the side of the sealing plate 3 away from the limit rod 13 is fixedly connected to two second limit blocks 16. By setting the first limit block 12, the second limit block 16 and the limit rod 13, the position of the second cavity 2 or the sealing plate 3 can be fixed, so as to ensure the stable installation of the second cavity 2 or the sealing plate 3 as much as possible. The end of the limit rod 13 away from the first limit block 12 is fixedly connected with a pull plate 14, and the surface of the limit rod 13 is covered with a spring 15, and the two ends of the spring 15 are fixedly connected to the pull plate 14 and the rotating plate 10 respectively. By providing the pull plate 14 , the limiting rod 13 can be moved conveniently and the spring 15 can be installed conveniently. By providing the spring 15 , the position of the limiting rod 13 can be limited.

[0035] Working principle: When using the filter cavity, first install the filter cavity and then connect the signal input terminal 4 and the signal output terminal 5 to use the filter cavity. By setting the resonance rod 6, the resonance frequency in the cavity can be adjusted. When it is necessary to adjust the size of the filter cavity, first pull the pull plate 14 to drive the limit rod 13 to slide on the inner wall of the rotating plate 10, so that the limit rod 13 moves away from the second limit block 16, rotate the screw rod 11 away from the fixed column 9 to release the restriction on the position of the rotating plate 10, rotate the rotating plate 10 close to the first cavity 1, release the pull plate 14, and under the action of the elastic force of the spring 15, the limit rod 13 moves close to the first cavity 1. Then move the second cavity 2 so that the first "U"-shaped strip 19 and the second "U"-shaped strip 20 on the second cavity 2 move close to the first connection groove 17 and the second connection groove 18 respectively. Pull the pull plate 14 to drive the limit rod 13 to move away from the first cavity 1, rotate the rotating plate 10 close to the second cavity 2, release the pull plate 14, and under the action of the elastic force of the spring 15, the limit rod 13 moves close to the first limit block 12. Rotate the screw rod 11 to make it close to the fixed column 9 to restrict the position of the rotating plate 10, and complete the connection between the first cavity 1 and the second cavity 2 and between the first top plate 7 and the second top plate 8. Then move the sealing plate 3, the first plug 21 and the second plug 22 close to the second cavity 2, rotate the screw rod 11 on the second cavity 2 to make it away from the fixed column 9, pull the pull plate 14 to drive the limit rod 13 to move away from the second cavity 2, rotate the rotating plate 10 close to the sealing plate 3, release the pull plate 14, and under the action of the elastic force of the spring 15, the limit rod 13 moves close to the second limit block 16. Rotate the screw rod 11 to make it close to the fixed column 9 to restrict the position of the rotating plate 10 and complete the adjustment of the size of the filter cavity. By setting the first connection groove 17 and the second connection groove 18 on the first cavity 1 and the second cavity 2 and the first "U"-shaped strip 19 and the second "U"-shaped strip 20, the size of the filter cavity can be conveniently spliced and adjusted, thereby improving the flexibility of the filter cavity. By setting the sealing plate 3, the filter cavity can be closed. By setting the fixed column 9, the rotating plate 10 can be rotated while being connected to the first cavity 1 and the second cavity 2. By setting the first limit block 12, the second limit block 16 and the limit rod 13, the connection between the first cavity 1, the second cavity 2 and the sealing plate 3 can be fixed.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spliced filter cavity with adjustable length, comprising a first cavity (1), characterized in that: The second cavity (2) is detachably installed on the side of the first cavity (1). A plurality of resonance rods (6) are fixedly connected inside both the first cavity (1) and the second cavity (2). A signal input end (4) is fixedly connected to one side of the first cavity (1), and a signal output end (5) is fixedly connected to the side of the first cavity (1) away from the signal input end (4). A first top plate (7) is installed on the upper surface of the first cavity (1), and a second top plate (8) is installed on the upper surface of the second cavity (2). A second "U" - shaped strip (20) is fixedly connected to the side of the second top plate (8) close to the first top plate (7). A sealing plate (3) is detachably installed on the side of the second cavity (2) away from the first cavity (1). A first "U" - shaped strip (19) is fixedly connected to both the sealing plate (3) and the side of the second cavity (2) close to the first cavity (1).

2. The spliced filter cavity with adjustable length according to claim 1, wherein: A first connection groove (17) is provided on the side of both the first cavity (1) and the second cavity (2) close to the sealing plate (3). A second connection groove (18) is provided on the side of both the first top plate (7) and the second top plate (8) close to the sealing plate (3).

3. The spliced filter cavity with adjustable length according to claim 1, characterized in that: A first plug block (21) is fixedly connected to the side of the sealing plate (3) close to the second cavity (2), and a second plug block (22) is fixedly connected to the side of the sealing plate (3) close to the first cavity (1).

4. The spliced filter cavity with adjustable length according to claim 1, characterized in that: Fixing columns (9) are fixedly connected to both sides of the first cavity (1) and the second cavity (2). The other ends of the fixing columns (9) are rotatably connected to rotating plates (10).

5. The spliced filter cavity with adjustable length according to claim 4, wherein: A screw rod (11) is threadedly inserted into the inner wall of the rotating plate (10), and the screw rod (11) is threadedly inserted into the inner wall of the fixing column (9). A limiting rod (13) is slidably connected to the inner wall of the rotating plate (10).

6. The spliced filter cavity with adjustable length according to claim 5, characterized in that: First limiting blocks (12) are fixedly connected to both sides of the second cavity (2). Two second limiting blocks (16) are fixedly connected to the side of the sealing plate (3) away from the limiting rod (13).

7. The spliced filter cavity with adjustable length according to claim 6, characterized in that: One end of the limiting rod (13) away from the first limiting block (12) is fixedly connected to a pulling plate (14). A spring (15) is sleeved on the surface of the limiting rod (13), and both ends of the spring (15) are fixedly connected to the pulling plate (14) and the rotating plate (10) respectively.

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