Shell structure of filter

Abstract

The utility model discloses a shell structure of a filter, which relates to the technical field of filters, and comprises a middle shell, an upper shell and a lower shell, the middle shell is used for supporting internal components of the filter, two sides of the middle shell are fixedly provided with connecting ports, the connecting ports are used for butt joint of the filter and external equipment, and the lower shell is used for connecting the upper shell and the lower shell. Positioning assemblies are fixedly installed at the four corners of the middle shell, the upper shell is installed at the top of the middle shell in a buckled mode, top inserting pieces matched with the positioning assemblies are fixedly installed at the four corners of an inner cavity of the upper shell, and the lower shell is installed at the bottom of the middle shell in a buckled mode. According to the utility model, the problems that the detachable filter in the prior art is poor in sealing effect, dust cannot be effectively prevented from entering the shell, and the maintenance space of the internal components of the filter shell is narrow, so that the internal components of the filter shell are difficult to maintain are solved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a filter housing structure. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. Filters can effectively filter out specific frequencies or frequencies outside of a power supply line to obtain a power signal of a specific frequency, or eliminate a power signal after a specific frequency has been eliminated. Filters are generally protected by a casing during use. Filters with metal casings are mainly used in aviation, aerospace, shipbuilding, weaponry, communications, and industrial fields. They are mainly used to protect core components from external interference and damage, thus protecting the core components and ensuring the long-term stability of product performance.

[0003] In existing technologies, once a filter is damaged, the housing is difficult to remove, so the entire device must be replaced instead of repaired, which greatly increases the cost of using the filter and is not conducive to long-term use. In some cases, the upper and lower housings of the filter are not securely fixed, causing the filter to detach from the housing. Furthermore, dust can easily enter the housing, affecting the normal use of the filter.

[0004] The prior art proposes a Chinese patent with publication number CN219659680U to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: A filter housing includes a wear-resistant insulating shell. An alarm flashing light is fixedly installed on the front of the wear-resistant insulating shell near the top center. An insulating sealing chassis is fixedly installed on the bottom of the wear-resistant insulating shell. An insulating connecting plate is fixedly installed axially symmetrically on the front of the wear-resistant insulating shell near the bottom. A fixing hole is symmetrically opened on the top of the insulating connecting plate near one side. An insulating fixing sleeve is fixedly installed axially symmetrically on one side of the wear-resistant insulating shell near the top. By placing the insulating sealing chassis, the sealing performance of the filter is improved, preventing dust from entering the filter housing inside the housing. However, this also results in a narrow maintenance space for the internal components of the filter housing, which leads to difficulties in maintaining the internal components of the filter housing. Utility Model Content

[0005] The purpose of this utility model is to provide a filter housing structure to solve the problems of poor sealing effect of existing detachable filters, which cannot effectively prevent dust from entering the housing and also result in a small maintenance space for internal components, making maintenance of internal components of the filter housing difficult.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A filter housing structure includes:

[0008] The middle housing is used to support the internal components of the filter. Connection ports are fixedly installed on both sides of the middle housing for docking the filter with external devices. Positioning components are fixedly installed at the four corners of the middle housing.

[0009] The upper housing is snapped onto the top of the middle housing, and top inserts adapted to the positioning assembly are fixedly installed at the four corners of the inner cavity of the upper housing.

[0010] The lower housing is snapped onto the bottom of the middle housing. Bottom inserts that are compatible with the positioning components are fixedly installed at the four corners of the inner cavity of the lower housing. The outer rings of the upper and lower housings are provided with multiple sets of corresponding locking components.

[0011] The above technical solution provides a stable mounting platform for the internal components of the filter, ensuring their stability during operation. It also provides a connection base for the upper and lower housings. The connection port allows the filter to connect to external systems, ensuring smooth entry and exit of signals or media, meeting the filter's functional requirements. The upper and lower housings, together with the middle housing, form a sealed outer shell, protecting the internal components from external environmental influences and ensuring the integrity of the filter's overall structure. Positioning components, top inserts, and bottom inserts enhance assembly convenience and accuracy. Locking components are located on the outer ring of the upper and lower housings, securely fastening them to the top and bottom of the middle housing, ensuring a stable assembly of the filter housing structure.

[0012] A further improvement of this utility model is that the positioning component is set in the vertical tube at the four corners of the inner cavity of the middle shell, and the vertical tube is fixedly connected to the inner wall of the middle shell through a long support plate and a short support plate.

[0013] In the above technical solution, the vertical tube serves as the core component of the positioning assembly, providing insertion positions for the top and bottom inserts. This ensures that the upper and lower housings can be accurately aligned and connected with the middle housing. The long and short support plates provide stable support for the vertical tube, ensuring its fixed position within the middle housing. Furthermore, they provide additional installation space for fixing the internal components of the filter, increasing the installation flexibility and stability of the internal components.

[0014] A further improvement of the present invention is that the top insert includes a first support rod bonded to the top of the inner cavity of the upper housing, and a first insert rod is fixedly installed at the lower end of the first support rod, and the first insert rod can be slidably embedded into the interior of the vertical tube.

[0015] In the above technical solution, the first support rod provides support for the first insertion rod, ensuring that it can be stably inserted into the vertical pipe. The first insertion rod realizes the precise positioning and connection of the upper shell and the middle shell, improving the convenience and accuracy of assembly.

[0016] A further improvement of the present invention is that the bottom insert includes a second support rod bonded to the bottom of the inner cavity of the lower housing, and a second insert rod is fixedly installed at the top of the second support rod, and the second insert rod can be slidably embedded into the interior of the vertical tube.

[0017] The above technical solution provides support for the second insertion rod, ensuring that it can be stably inserted into the vertical pipe. The second insertion rod achieves precise positioning and connection between the lower shell and the middle shell, improving the convenience and accuracy of assembly.

[0018] A further improvement of the present invention is that the locking component includes a first support seat fixedly installed on the outer side of the upper housing and a second support seat fixedly installed on the outer side of the lower housing. A long screw rod is installed through the corresponding first and second support seats, and a fixing nut that abuts against the top surface of the first support seat is threaded onto the long screw rod.

[0019] The above technical solution provides an installation position for the long screw, ensuring that the long screw can stably penetrate the upper and lower shells. The long screw is used to tightly connect the upper and lower shells with the middle shell, improving the stability of the shell structure. The fixing nut is threaded onto the long screw to lock the long screw, further enhancing the stability of the shell structure and facilitating subsequent disassembly and maintenance.

[0020] A further improvement of this utility model is that: the top and bottom outer rings of the middle shell are provided with first slots, and the bottom inner ring of the upper shell and the top inner ring of the lower shell are provided with second slots that are adapted to the first slots.

[0021] The above technical solution includes outer rings on the top and bottom edges of the middle shell, inner rings on the bottom edge of the upper shell, and inner rings on the top edge of the lower shell. These provide accommodating space during snap-fit ​​assembly of the middle shell, upper shell, and lower shell, ensuring a tight fit between the shells.

[0022] A further improvement of this utility model is that: mounting seats are welded to both sides of the lower housing, and mounting holes are opened inside both sets of mounting seats.

[0023] The above technical solution provides a convenient installation method. By using bolts to pass through the mounting holes, the filter can be quickly fixed in the required position, improving the installation efficiency and stability of the filter.

[0024] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0025] 1. This utility model provides a filter housing structure. Through the cooperation of positioning components, top inserts, and bottom inserts, a precise snap-fit ​​connection is achieved between the middle housing, upper housing, and lower housing. This design not only improves the convenience and accuracy of assembly but also reduces possible errors during assembly, ensuring the stable assembly of the filter housing structure. When it is necessary to inspect the inside of the filter, the upper and lower housings can be easily opened without disassembling the entire filter. This design greatly improves the convenience of maintenance, saves time and labor costs, and also reduces the potential damage to the internal components of the filter caused by frequent disassembly.

[0026] 2. This utility model provides a filter housing structure with a locking mechanism. The upper and lower housings are securely fastened to the top and bottom of the middle housing via threaded connections. This design not only enhances the stability of the filter housing structure but also ensures that the housing structure will not loosen due to vibration or external forces during long-term use, thus improving the reliability and service life of the filter. The design of the first and second slots allows the middle, upper, and lower housings to fit tightly together, forming a good sealing effect. This sealing design effectively prevents external dust, moisture, and other impurities from entering the filter, ensuring the normal operation of the filter under various environmental conditions and extending the filter's service life. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a first disassembled schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a second disassembled schematic diagram of the overall structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the middle shell structure of this utility model;

[0031] Figure 4This is a schematic diagram of the lower shell structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the upper shell structure of this utility model;

[0033] Figure 6 This is an assembly diagram of the overall structure of this utility model;

[0034] In the diagram: 1. Middle shell; 2. Connection port; 3. Upper shell; 4. Lower shell; 5. Vertical tube; 6. Long support plate; 7. Short support plate; 8. First support rod; 9. First insertion rod; 10. Second support rod; 11. Second insertion rod; 12. First support base; 13. Second support base; 14. Long screw; 15. Fixing nut; 16. First slot; 17. Second slot; 18. Mounting base; 19. Mounting hole. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to embodiments:

[0036] Example 1

[0037] like Figures 1-6 As shown, this utility model provides a filter housing structure, including a middle housing 1, an upper housing 3, and a lower housing 4. The middle housing 1 is used to support the internal components of the filter. Connection ports 2 are fixedly installed on both sides of the middle housing 1. The connection ports 2 are used for docking the filter with external devices. Positioning components are fixedly installed at the four corners of the middle housing 1. The upper housing 3 is snapped onto the top of the middle housing 1. Top inserts adapted to the positioning components are fixedly installed at the four corners of the inner cavity of the upper housing 3. The lower housing 4 is snapped onto the bottom of the middle housing 1. Bottom inserts adapted to the positioning components are fixedly installed at the four corners of the inner cavity of the lower housing 4. Multiple sets of corresponding locking components are provided on the outer rings of the upper housing 3 and the lower housing 4.

[0038] In actual assembly and use, the internal components of the filter can be directly fixed to the middle housing 1. After all the internal components of the filter are assembled, the lower housing 4 and the upper housing 3 can be securely snapped to the bottom and top of the middle housing 1 by locking components to achieve a seal inside the filter. When maintenance is required inside the filter, the lower housing 4 and the upper housing 3 can be opened for operation, which can effectively improve the convenience of filter maintenance. It is also equipped with positioning components and matching top and bottom inserts, which can provide efficient auxiliary positioning when the middle housing 1, the upper housing 3 and the lower housing 4 are snapped together.

[0039] like Figures 1-6As shown, in this embodiment, preferably, the positioning components are arranged in vertical tubes 5 at the four corners of the inner cavity of the middle housing 1. The vertical tubes 5 are fixedly connected to the inner wall of the middle housing 1 through long support plates 6 and short support plates 7. Correspondingly, the top insert includes a first support rod 8 bonded to the top of the inner cavity of the upper housing 3. A first insert rod 9 is fixedly installed at the bottom end of the first support rod 8. The first insert rod 9 can be slidably embedded into the interior of the vertical tube 5. Correspondingly, the bottom insert includes a second support rod 10 bonded to the bottom of the inner cavity of the lower housing 4. A second insert rod 11 is fixedly installed at the top end of the second support rod 10. The second insert rod 11 can be slidably embedded into the interior of the vertical tube 5.

[0040] When the upper housing 3 is snapped onto the middle housing 1, the first insert 9 at the end of the first support rod 8 can be snapped into the interior of the vertical tube 5 from top to bottom. When the lower housing 4 is snapped onto the middle housing 1, the second insert 11 at the end of the second support rod 10 can be snapped into the interior of the vertical tube 5 from bottom to top. This provides convenience for the connection between the middle housing 1, the upper housing 3 and the lower housing 4, and also helps to improve the support strength after the components are assembled. In addition, there are long support plates 6 and short support plates 7 that support the vertical tube 5. While providing positioning for the vertical tube 5, the long support plates 6 and short support plates 7 also facilitate the installation space for fixing the internal components of the filter.

[0041] like Figures 1-6 As shown, preferably, the locking component includes a first support seat 12 fixedly installed on the outside of the upper housing 3 and a second support seat 13 fixedly installed on the outside of the lower housing 4. A long screw 14 is installed through the corresponding first support seat 12 and second support seat 13. A fixing nut 15 that abuts against the top surface of the first support seat 12 is threaded onto the long screw 14. After the positioning component and the matching top and bottom inserts are used to achieve precise locking between the middle housing 1, the upper housing 3 and the lower housing 4, the long screw 14 is passed through the corresponding set of first support seats 12 and second support seats 13. Then, the long screw 14 is locked with the fixing nut 15. After all sets of long screws 14 are fixed, the filter housing structure can be stably assembled, which is also conducive to subsequent disassembly and maintenance of the components.

[0042] The middle shell 1 has a first slot 16 on the top and bottom outer rings, and the upper shell 3 and the lower shell 4 have a second slot 17 that matches the first slot 16. When the middle shell 1, the upper shell 3 and the lower shell 4 are snapped together, the first slot 16 on the top of the middle shell 1 accommodates the bottom edge of the upper shell 3, and the first slot 16 on the bottom of the middle shell 1 accommodates the top edge of the lower shell 4. The first slot 16 and the second slot 17 facilitate the tightening and sealing of the assembly between the shells.

[0043] Mounting seats 18 are welded on both sides of the lower housing 4. Mounting holes 19 are opened inside the two sets of mounting seats 18. The filter can be easily installed to the position to be used by using bolt components to pass through the mounting holes 19.

[0044] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A filter housing structure, characterized in that, include: The middle housing (1) is used to support the internal components of the filter. Both sides of the middle housing (1) are fixedly installed with connection ports (2), which are used for docking the filter with external devices. Positioning components are fixedly installed at the four corners of the middle housing (1). The upper housing (3) is snapped onto the top of the middle housing (1), and top inserts adapted to the positioning components are fixedly installed at the four corners of the inner cavity of the upper housing (3). The lower housing (4) is snapped onto the bottom of the middle housing (1). Bottom inserts that are compatible with the positioning components are fixedly installed at the four corners of the inner cavity of the lower housing (4). The outer rings of the upper housing (3) and the lower housing (4) are provided with multiple sets of corresponding locking components.

2. The housing structure of a filter according to claim 1, characterized in that: The positioning components are set in the vertical tubes (5) at the four corners of the inner cavity of the middle housing (1). The vertical tubes (5) are fixedly connected to the inner wall of the middle housing (1) through the long support plate (6) and the short support plate (7).

3. The housing structure of a filter according to claim 2, characterized in that: The top insert includes a first support rod (8) bonded to the top of the inner cavity of the upper housing (3), and a first insert rod (9) is fixedly installed at the bottom end of the first support rod (8). The first insert rod (9) can be slidably embedded into the interior of the vertical tube (5).

4. The housing structure of a filter according to claim 2, characterized in that: The bottom insert includes a second support rod (10) bonded to the bottom of the inner cavity of the lower housing (4), and a second insert rod (11) is fixedly installed at the top of the second support rod (10). The second insert rod (11) can be slidably embedded into the interior of the vertical tube (5).

5. The housing structure of a filter according to claim 1, characterized in that: The locking component includes a first support seat (12) fixedly installed on the outside of the upper housing (3) and a second support seat (13) fixedly installed on the outside of the lower housing (4). A long screw (14) is installed through the corresponding first support seat (12) and second support seat (13). A fixing nut (15) that abuts against the top surface of the first support seat (12) is threaded onto the long screw (14).

6. The housing structure of a filter according to claim 1, characterized in that: The top and bottom outer rings of the middle shell (1) are provided with first slots (16), and the bottom inner ring of the upper shell (3) and the top inner ring of the lower shell (4) are provided with second slots (17) that are adapted to the first slots (16).

7. The housing structure of a filter according to claim 1, characterized in that: Mounting seats (18) are welded to both sides of the lower housing (4), and mounting holes (19) are opened inside both sets of mounting seats (18).

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