A filter cavity and a filter

Abstract

The present invention relates to the field of filter technology, and mainly meets the working requirements of the filter cavity by cooperating with a first auxiliary component and a second auxiliary component with a filter cavity body and a cavity inlay; the supporting frame box and a movable rod, a supporting sleeve and a supporting foot in the first auxiliary component can be used as supporting feet of the filter on the one hand, and the connection between the supporting frame box and the first cooling channel and the second cooling channel can help the heat dissipation inside the filter cavity; the external threaded connecting pipe in the second auxiliary component and the supporting auxiliary seat can be used to provide a positioning effect for the cavity inlay after it is placed in the filter cavity body, and has a stabilizing function, thereby ensuring the stability of the filter operation; it has an excellent auxiliary function for the heat discharge from the filter cavity body and the cavity inlay; the present invention can better meet the actual use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a filter cavity and a filter. Background Art

[0002] As a frequency selection device, filters are widely used in the communication field, especially in the field of radio frequency communication. In the base station where the communication system completes signal transmission and reception, filters are used to select communication signals and filter out clutter or interference signals outside the communication signal frequency. The filter cavity, as an important component of the cavity filter, plays an important role that cannot be ignored.

[0003] The existing patent document with announcement number CN215497023U discloses a filter cavity structure, which includes an upper cover plate, a filter cavity and a lower cover plate. The upper cover plate and the lower cover plate are screwed to the top and bottom of the filter cavity by screws. Mounting feet are provided at the four corners of the bottom end of the lower cover plate. The bottom of the lower cover plate is provided with a stepped mounting groove, the mounting groove is connected with the inside of the filter cavity, and a sealing component matching therewith is provided in the mounting groove. Partitions are arranged on both sides of the inside of the filter cavity along its height direction, a cavity is formed between the partition plate and the side wall of the filter cavity, a resonant cavity is formed between the partition plates, a mounting plate is provided at the bottom of the resonant cavity, a filter mesh cavity is provided on the surface of the mounting plate, a plurality of resonant columns are arranged on both sides of the filter mesh cavity, the mounting groove is connected with the filter mesh cavity, and an adjustment structure for driving the sealing component to cooperate with the mounting groove is provided in the cavity.

[0004] The filter cavity in the above-mentioned scheme and the prior art is provided with many components, some of which are divided into two parts, a cavity inlay and a cavity main body. The cavity inlay is embedded in the cavity main body to facilitate the installation of components and the overall assembly of the filter. However, the problem it brings is that, although the side walls of the filter cavity are provided with heat dissipation slots, they cannot reach the cavity inlay, which has a great impact on its heat dissipation effect; and the cavity inlay and the filter cavity are only embedded in each other, and its stability in use needs to be further improved, otherwise it will also have a certain negative impact on the use of components therein; further improvement and optimization are needed.

[0005] To this end, the present invention proposes a filter cavity and a filter for solving the above-mentioned problem. Summary of the invention

[0006] The object of the present invention is to provide a filter cavity and a filter to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a filter cavity, comprising a filter cavity body, a cavity inlay, a first auxiliary component, and a second auxiliary component;

[0008] The side wall of the filter cavity body is symmetrically provided with connecting through grooves, and the inner side wall of the filter cavity body is provided with a first cooling channel, and the bottom end of the filter cavity body is equidistantly penetrated with a first mounting hole;

[0009] The side wall of the cavity inlay is symmetrically provided with a docking slot, the docking slot is provided with a connecting thread groove, the outer side wall of the cavity inlay is provided with a second cooling channel, the second cooling channel is equidistantly provided with auxiliary through holes, and the bottom end of the cavity inlay is equidistantly provided with a second mounting hole;

[0010] The first auxiliary component is connected to the filter cavity body, the cavity inlay is placed in the filter cavity body, and the cavity inlay is positioned by the second auxiliary component.

[0011] Preferably, the second mounting hole and the first mounting hole have corresponding positions and the same number of groups; the second cooling channel and the first cooling channel have corresponding positions and the same number of groups, and the first cooling channel is connected to the connecting groove; the second cooling channel is connected to the docking slot; the connecting groove and the docking slot have corresponding positions and the same number of groups, and the auxiliary through hole in the second cooling channel is penetrated in the cavity inlay.

[0012] Preferably, the first auxiliary component includes a supporting frame box, a docking slot, a movable rod, a supporting sleeve, an adjusting and positioning slot, a positioning screw, a supporting foot, a cover plate, a vent, a mounting screw, a knob, and a first drying cotton sheet; a movable rod is fixedly provided at a bottom position at one end of the supporting frame box, and a docking slot is symmetrically provided at the other side of the supporting frame box, the movable rod is plugged into the supporting sleeve, a supporting foot is fixedly provided at the bottom end of the supporting sleeve, an adjusting and positioning slot is equidistantly provided on one side of the movable rod, the positioning screw is threadedly provided in the supporting sleeve, and one end of the positioning screw is adapted to be snapped in the adjusting and positioning slot, a cover plate is provided at one end of the supporting frame box, vents are equidistantly provided on the cover plate, and a mounting screw is threadedly provided through the cover plate, a knob is fixedly provided at one end of the mounting screw, and a first drying cotton sheet is fixedly provided in the supporting frame box.

[0013] Preferably, the notch of the docking through groove is arranged in a circular shape, and the docking through groove and the second cooling channel are arranged at corresponding positions and have the same number of groups.

[0014] Preferably, the mounting screws correspond to the setting positions of the connecting thread grooves in the docking slots, have the same setting groups, and are threadedly connected to the connecting thread grooves in a matching manner; the supporting frame box corresponds to the setting positions of the connecting through grooves and the docking slots, and one end of the supporting frame box passes through the connecting through grooves and is plugged into the docking slots in a matching manner.

[0015] Preferably, the first drying cotton sheets are arranged in two rows at equal distances in the support frame box, respectively arranged on two sides of the support frame box, and the first drying cotton sheets on the two sides are arranged alternately.

[0016] Preferably, the second auxiliary component includes an externally threaded connecting tube, a connecting screw head, a first auxiliary hole groove, a second drying cotton sheet, a second auxiliary hole groove, a third auxiliary hole groove, a cylindrical thread cavity, a supporting auxiliary seat, an annular thread groove, an auxiliary through groove, a thread regulating strip, and an auxiliary top ring; a connecting screw head is fixedly provided at one end of the externally threaded connecting tube, a cavity is provided in the connecting screw head, and the cavity is connected to the externally threaded connecting tube, the first auxiliary hole grooves are equidistantly provided on the side wall of the externally threaded connecting tube, the second drying cotton sheet is provided on the inner side wall of the externally threaded connecting tube, and the side wall of the connecting screw head is provided Second auxiliary hole grooves are arranged at equal intervals, and the second auxiliary hole grooves are connected to the cavity in the connecting screw head. Third auxiliary hole grooves are arranged at equal intervals on the end of the connecting screw head, and the third auxiliary hole grooves are connected to the cavity in the connecting screw head. The external threaded connecting pipe is threadedly connected to the cylindrical threaded cavity. The cylindrical threaded cavity is arranged in a supporting auxiliary seat, and an annular thread groove is arranged in the supporting auxiliary seat. The annular thread groove is threadedly connected to the threaded regulating strip. An auxiliary top ring is fixed at one end of the threaded regulating strip, and auxiliary through grooves are arranged at equal intervals in the supporting auxiliary seat.

[0017] Preferably, the second drying cotton sheets are arranged in two rows at equal distances on the inner side wall of the externally threaded connecting tube and are arranged in a staggered manner.

[0018] Preferably, the support auxiliary seat is arranged in a truncated cone shape, and the support auxiliary seat corresponds to the setting position of the external threaded connecting tube and is arranged in the same number of groups; the setting position of the external threaded connecting tube corresponds to the first mounting hole at the bottom end of the filter cavity body and the second mounting hole at the bottom end of the cavity inlay and is arranged in the same number of groups; the auxiliary through groove is connected to the annular thread groove, and the auxiliary through groove is also connected to the cylindrical thread cavity.

[0019] A filter includes a filter cavity.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The filter cavity designed by the present invention mainly meets the working requirements of the filter cavity by cooperating with the first auxiliary component and the second auxiliary component with the filter cavity body and the cavity inlay; the supporting frame box and the movable rod, the supporting sleeve and the supporting foot in the first auxiliary component can be used as the supporting foot of the filter on the one hand, and the connection between the supporting frame box and the first cooling channel and the second cooling channel helps the heat dissipation inside the filter cavity; the external threaded connecting pipe in the second auxiliary component and the supporting auxiliary seat can provide a positioning function for the cavity inlay after it is placed in the filter cavity body, and has a stabilizing function, thereby ensuring the stability of the filter operation; the external threaded connecting pipe and the connecting screw head are connected to the outside world, and the second auxiliary component is used in cooperation with the first auxiliary component, which has a circulating heat dissipation effect on the inside of the filter cavity, and has an excellent auxiliary function for the heat discharge from the filter cavity body and the cavity inlay; the present invention can better meet the actual use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A top view of the connection of the filter cavity structure of the present invention;

[0023] Figure 2 The left side schematic diagram of the filter cavity structure connection of the present invention;

[0024] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the local structural connection of the filter cavity body;

[0025] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the local structural connection of the inlay in the middle cavity;

[0026] Figure 5 The right side schematic diagram of the filter cavity structure connection of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the local structural connection;

[0028] Figure 7 This is a bottom view of the connection of the filter cavity structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the local structural connection;

[0030] Fig. 9 This is a schematic diagram of the structural connection of the first auxiliary component of the present invention;

[0031] Fig.10 For the present invention Fig. 9A magnified schematic diagram of the local structural connection;

[0032] Fig.11 This is a schematic diagram of the structural connection of the second auxiliary component of the present invention;

[0033] Fig.12 For the present invention Fig.11 A magnified schematic diagram of the local structural connection;

[0034] Fig.13 A partial cross-sectional view of the structure connection of the second auxiliary component of the present invention;

[0035] Fig.14 For the present invention Fig.13 Enlarged schematic diagram of local structural connection.

[0036] In the figure: filter cavity body 1, connecting through groove 101, first cooling channel 102, first mounting hole 103, cavity inlay 2, docking slot 201, connecting thread groove 202, second cooling channel 203, auxiliary through hole 204, second mounting hole 205, support frame box 301, docking through groove 302, movable rod 303, support sleeve 304, regulating positioning groove 305, positioning screw 306, support base 307, cover plate 308, vent 309, mounting screw 310, knob 311, first drying cotton sheet 312, external thread connecting pipe 401, connecting screw head 402, first auxiliary hole groove 403, second drying cotton sheet 404, second auxiliary hole groove 405, third auxiliary hole groove 406, cylindrical threaded cavity 407, support auxiliary seat 408, annular thread groove 409, auxiliary through groove 410, thread regulating strip 411, auxiliary top ring 412. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 14A filter cavity comprises a filter cavity body 1, a cavity inlay 2, a first auxiliary component and a second auxiliary component; the side wall of the filter cavity body 1 is symmetrically provided with connecting through grooves 101, and the inner side wall of the filter cavity body 1 is provided with a first cooling channel 102, and the bottom end of the filter cavity body 1 is equidistantly penetrated with a first mounting hole 103; the side wall of the cavity inlay 2 is symmetrically provided with a docking slot 201, and a connecting threaded groove 202 is provided in the docking slot 201, and a second cooling channel 203 is provided on the outer side wall of the cavity inlay 2, and auxiliary through holes 204 are equidistantly provided in the second cooling channel 203, and a second mounting hole 205 is equidistantly provided at the bottom end of the cavity inlay 2; in this scheme, the first auxiliary component is connected to the filter cavity body 1, the cavity inlay 2 is placed in the filter cavity body 1, and the cavity inlay 2 is positioned by the second auxiliary component; a filter comprises a filter cavity.

[0039] The second mounting hole 205 here corresponds to the first mounting hole 103 in setting position and has the same number of setting groups; the second cooling channel 203 corresponds to the first cooling channel 102 in setting position and has the same number of setting groups, and the first cooling channel 102 is connected to the connecting groove 101; the second cooling channel 203 is connected to the docking slot 201; the connecting groove 101 corresponds to the docking slot 201 in setting position and has the same number of setting groups, and the auxiliary through hole 204 in the second cooling channel 203 is set through the cavity inlay 2.

[0040] The present invention mainly meets the working requirements of the filter cavity by using the first auxiliary component and the second auxiliary component in conjunction with the filter cavity body 1 and the cavity inlay 2; the supporting frame box 301 and the movable rod 303, the supporting sleeve 304 and the supporting foot 307 in the first auxiliary component can be used as the supporting foot of the filter on the one hand, and the connection between the supporting frame box 301 and the first cooling channel 102 and the second cooling channel 203 is helpful for the heat dissipation inside the filter cavity; the external threaded connecting pipe 401 and the supporting auxiliary seat 408 in the second auxiliary component provide a positioning function for the cavity inlay 2 after it is placed in the filter cavity body 1, and have a stabilizing function, thereby ensuring the stability of the filter operation; the external threaded connecting pipe 401 and the connecting screw head 402 are connected to the outside world, which has an excellent auxiliary function for the heat discharge inside the filter cavity body 1 and the cavity inlay 2.

[0041] Example 2: Based on Example 1, please refer to Figure 6-Figure 7 and Figure 9-10The first auxiliary component here includes a support frame box 301, a docking slot 302, a movable rod 303, a support sleeve 304, an adjustment and positioning slot 305, a positioning screw 306, a support foot 307, a cover plate 308, a vent 309, a mounting screw 310, a knob 311, and a first drying cotton sheet 312; the movable rod 303 is fixedly arranged at the bottom side of one end of the support frame box 301, and the docking slot 302 is symmetrically arranged at the side position of the other side of the support frame box 301, and the movable rod 303 is inserted into the support sleeve 304, and the bottom end of the support sleeve 304 A supporting foot 307 is fixedly provided, and regulating positioning grooves 305 are equidistantly provided on one side of the movable rod 303. A positioning screw 306 is threadedly connected in the supporting sleeve 304, and one end of the positioning screw 306 is adapted to be snapped into the regulating positioning groove 305. A cover plate 308 is provided at one end of the supporting frame box 301, and vent holes 309 are equidistantly provided on the cover plate 308. A mounting screw 310 is threadedly connected through the cover plate 308, and a knob 311 is fixedly provided at one end of the mounting screw 310. A first drying cotton sheet 312 is fixedly provided in the supporting frame box 301.

[0042] In this embodiment, the notch of the docking slot 302 is set to be circular, and the docking slot 302 corresponds to the setting position of the second cooling channel 203 and is set in the same number of groups; the mounting screw 310 corresponds to the setting position of the connecting thread groove 202 in the docking slot 201 and is set in the same number of groups, and the mounting screw 310 is threadedly connected to the connecting thread groove 202; the support frame box 301 corresponds to the setting position of the connecting slot 101 and the docking slot 201, and one end of the support frame box 301 passes through the connecting slot 101 and is plugged in with the docking slot 201; wherein the support frame box 301 and the movable rod 303, the support sleeve 304, and the support base foot 307 in the first auxiliary component are used in coordination, on the one hand, it can be used as a support foot of the filter, and secondly, through the connection between the support frame box 301 and the first cooling channel 102 and the second cooling channel 203, it helps the heat dissipation work inside the filter cavity.

[0043] The movable rod 303 is movably inserted in the supporting sleeve 304, and is positioned by the clamping connection between the positioning screw 306 and the regulating positioning groove 305 on the movable rod 303, which has better working flexibility; a first drying cotton sheet 312 is arranged in the supporting frame box 301, and the first drying cotton sheets 312 are arranged in two rows at equal distances in the supporting frame box 301, respectively arranged on both sides of the supporting frame box 301, and the first drying cotton sheets 312 on both sides are staggered; to avoid that when the external gas enters the filter cavity for cooling auxiliary work, the humid gas enters the filter cavity and affects its normal operation; and the staggered arrangement is based on the moisture-proof gas to ensure the normal circulation of the gas or the normal discharge of the heat as much as possible.

[0044] Example 3: Based on Example 2, please refer to Figure 5 , Figure 8 and Figure 11-Figure 14 The second auxiliary component here includes an external threaded connecting tube 401, a connecting screw head 402, a first auxiliary hole groove 403, a second drying cotton sheet 404, a second auxiliary hole groove 405, a third auxiliary hole groove 406, a cylindrical thread cavity 407, a supporting auxiliary seat 408, an annular thread groove 409, an auxiliary through groove 410, a thread regulating strip 411, and an auxiliary top ring 412; one end of the external threaded connecting tube 401 is fixedly provided with a connecting screw head 402, and a cavity is provided in the connecting screw head 402 , and the cavity is connected to the external threaded connecting tube 401, the side wall of the external threaded connecting tube 401 is equidistantly provided with first auxiliary holes 403, the inner side wall of the external threaded connecting tube 401 is provided with a second drying cotton sheet 404, the side wall of the connecting screw head 402 is equidistantly provided with second auxiliary holes 405, the second auxiliary holes 405 are connected to the cavity in the connecting screw head 402, the end of the connecting screw head 402 is equidistantly provided with third auxiliary holes 406, the third auxiliary holes 406 It is connected with the cavity in the connecting screw head 402, the external threaded connecting tube 401 is threadedly connected with the cylindrical threaded cavity 407, the cylindrical threaded cavity 407 is arranged in the supporting auxiliary seat 408, and an annular thread groove 409 is arranged in the supporting auxiliary seat 408, the annular thread groove 409 is threadedly connected with the threaded regulating strip 411, one end of the threaded regulating strip 411 is fixedly provided with an auxiliary top ring 412, and auxiliary through grooves 410 are equidistantly arranged in the supporting auxiliary seat 408; the supporting auxiliary seat 408 here is set in a truncated cone shape, and the supporting auxiliary seat 408 and the external threaded connecting tube 401 are set in the same position and the number of groups; the external threaded connecting tube 401 and the first mounting hole 103 at the bottom end of the filter cavity main body 1 and the second mounting hole 205 at the bottom end of the cavity inlay 2 are set in the same position and the number of groups; the auxiliary through groove 410 is connected with the annular thread groove 409, and the auxiliary through groove 410 is also connected with the cylindrical threaded cavity 407.

[0045] In this embodiment, the external threaded connecting tube 401 in the second auxiliary component is used in conjunction with the supporting auxiliary seat 408, the threaded regulating strip 411, and the auxiliary top ring 412. After the cavity inlay 2 is placed in the filter cavity body 1, a positioning function is provided for the cavity inlay 2, and a stabilizing function is provided, thereby ensuring the stability of the filter operation; and the supporting auxiliary seat 408 also has a supporting function for the filter, and assists the supporting work of the supporting sleeve 304; the external threaded connecting tube 401 provides a position positioning for the cavity inlay 2, and at the same time, its connecting screw head 402 is arranged in the inner cavity of the cavity inlay 2, and the heat in the cavity inlay 2 can be discharged in time through the first auxiliary hole groove 403, the second auxiliary hole groove 405 and the third auxiliary hole groove 406. Moreover, the purpose of setting the auxiliary through hole 204 in the second cooling channel 203 is the same.

[0046] Here, the second drying cotton sheets 404 in the externally threaded connecting tube 401 are staggered, and its purpose is to avoid humid gas from entering the filter cavity and causing negative effects when the external environment is relatively humid; the externally threaded connecting tube 401 arranged in this process is connected with the outside world, and the cavity embedded body 2 is connected with the second cooling channel 203 through the auxiliary through hole 204, and the second cooling channel 203 is connected with the support frame box 301 through the docking groove 302, and the support frame box 301 is connected with the outside world. Therefore, the second auxiliary component also has a certain coordination effect with the first auxiliary component, and has a gas circulation effect, which can speed up the gas circulation speed, has a circulating heat dissipation effect on the inside of the filter cavity, and improves the heat discharge efficiency; it has excellent auxiliary functions for the heat discharge of the filter cavity main body and the inside of the cavity embedded body.

[0047] 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 filter cavity, characterized in that: It comprises a filter cavity body (1), a cavity inlay (2), a first auxiliary component and a second auxiliary component; The side wall of the filter cavity body (1) is symmetrically provided with connecting through grooves (101), the inner side wall of the filter cavity body (1) is provided with a first cooling channel (102), and the bottom end of the filter cavity body (1) is equidistantly penetrated with first mounting holes (103); A docking slot (201) is symmetrically arranged on the side wall of the cavity inlay (2), a connecting thread groove (202) is arranged in the docking slot (201), a second cooling channel (203) is arranged on the outer wall of the cavity inlay (2), auxiliary through holes (204) are equidistantly arranged in the second cooling channel (203), and a second mounting hole (205) is equidistantly arranged at the bottom end of the cavity inlay (2); The first auxiliary component is connected to the filter cavity body (1), the cavity inlay (2) is placed in the filter cavity body (1), and the cavity inlay (2) is positioned by the second auxiliary component; The first auxiliary component comprises a support frame (301), a docking slot (302), a movable rod (303), a support sleeve (304), an adjustment and positioning slot (305), a positioning screw (306), a support foot (307), a cover plate (308), a vent (309), a mounting screw (310), a knob (311), and a first drying cotton sheet (312); the movable rod (303) is fixedly disposed at the bottom side of one end of the support frame (301), the docking slot (302) is symmetrically disposed at the other side of the support frame (301), the movable rod (303) is inserted into the support sleeve (304), and the bottom end of the support sleeve (304) is fixedly disposed. A support foot (307) is provided, a regulating and positioning groove (305) is equidistantly provided on one side of the movable rod (303), the positioning screw (306) is threadedly connected and arranged in the support sleeve (304), and one end of the positioning screw (306) is adapted to be clamped with the regulating and positioning groove (305), a cover plate (308) is provided at one end of the support frame box (301), vent holes (309) are equidistantly arranged on the cover plate (308), and a mounting screw (310) is threadedly connected and arranged through the cover plate (308), a knob (311) is fixedly provided at one end of the mounting screw (310), and a first drying cotton sheet (312) is fixedly provided in the support frame box (301); The second auxiliary component comprises an externally threaded connecting tube (401), a connecting screw head (402), a first auxiliary hole groove (403), a second drying cotton sheet (404), a second auxiliary hole groove (405), a third auxiliary hole groove (406), a cylindrical thread cavity (407), a supporting auxiliary seat (408), an annular thread groove (409), an auxiliary through groove (410), a thread regulating strip (411), and an auxiliary top ring (412); a connecting screw head (402) is fixedly provided at one end of the externally threaded connecting tube (401), a cavity is provided in the connecting screw head (402), and the cavity is connected to the externally threaded connecting tube (401); the first auxiliary hole grooves (403) are equidistantly provided on the side wall of the externally threaded connecting tube (401); the second drying cotton sheet (404) is provided on the inner side wall of the externally threaded connecting tube (401); the connecting screw head (402) The side wall of the connecting screw head (402) is equidistantly provided with second auxiliary hole grooves (405), the second auxiliary hole grooves (405) are connected to the cavity in the connecting screw head (402), the end of the connecting screw head (402) is equidistantly provided with third auxiliary hole grooves (406), the third auxiliary hole grooves (406) are connected to the cavity in the connecting screw head (402), the external threaded connecting pipe (401) is threadedly connected to the cylindrical threaded cavity (407), the cylindrical threaded cavity (407) is arranged in the supporting auxiliary seat (408), the supporting auxiliary seat (408) is provided with an annular thread groove (409), the annular thread groove (409) is threadedly connected to the threaded regulating strip (411), one end of the threaded regulating strip (411) is fixedly provided with an auxiliary top ring (412), and the supporting auxiliary seat (408) is equidistantly provided with auxiliary through grooves (410).

2. A filter cavity according to claim 1, characterized in that: The second mounting holes (205) and the first mounting holes (103) are arranged at positions corresponding to each other and are arranged in the same number of groups; the second cooling channels (203) and the first cooling channels (102) are arranged at positions corresponding to each other and are arranged in the same number of groups, the first cooling channels (102) are arranged in communication with the connecting through groove (101); the second cooling channels (203) are arranged in communication with the docking slot (201); the connecting through groove (101) and the docking slot (201) are arranged in positions corresponding to each other and are arranged in the same number of groups, and the auxiliary through holes (204) in the second cooling channels (203) are arranged to penetrate the cavity inlay (2).

3. A filter cavity according to claim 1, characterized in that: The notch of the docking through groove (302) is arranged in a circular shape, and the docking through groove (302) and the second cooling flow channel (203) are arranged at corresponding positions and have the same number of groups.

4. A filter cavity according to claim 1, characterized in that: The mounting screws (310) and the connecting thread grooves (202) in the docking slot (201) are arranged at positions corresponding to each other, are arranged in the same number of groups, and are threadedly connected to the connecting thread grooves (202) in a matching manner; the supporting frame box (301) and the connecting through grooves (101) and the docking slot (201) are arranged at positions corresponding to each other, and one end of the supporting frame box (301) passes through the connecting through groove (101) and is plugged into the docking slot (201) in a matching manner.

5. The filter cavity according to claim 1, characterized in that: The first drying cotton sheets (312) are arranged in two rows at equal distances in the support frame box (301), respectively arranged on two sides of the support frame box (301), and the first drying cotton sheets (312) on the two sides are arranged in a staggered manner.

6. A filter cavity according to claim 1, characterized in that: The second drying cotton sheets (404) are arranged in two rows at equal distances on the inner side wall of the external threaded connecting tube (401) and are arranged in a staggered manner.

7. A filter cavity according to claim 1, characterized in that: The auxiliary support seat (408) is arranged in a truncated cone shape, and the auxiliary support seat (408) and the external threaded connection pipe (401) are arranged in corresponding positions and in the same number of groups; the external threaded connection pipe (401) and the first mounting hole (103) at the bottom end of the filter cavity body (1) and the second mounting hole (205) at the bottom end of the cavity inlay (2) are arranged in corresponding positions and in the same number of groups; the auxiliary through groove (410) is arranged in communication with the annular thread groove (409), and the auxiliary through groove (410) is also arranged in communication with the cylindrical thread cavity (407).

8. A filter, characterized in that: A filter cavity comprising any one of claims 1 to 7.

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