One-piece injection molded air filter element seamless outer frame

Abstract

The utility model belongs to air filter element technical field discloses integrated injection molding air filter element seamless outer frame, including main frame, vice frame body, a plurality of installation slot that set up on main frame, two first sliding slot that set up on main frame and a plurality of rear limit board that are located main frame rear side, main frame, a plurality of installation slots, two first sliding slots and a plurality of rear limit board are integrally formed by polyurethane foaming material through the mode of pouring into forming mould, vice frame body is detachably connected with main frame through mounting assembly, the utility model discloses the design of adjustable height of movable plate, cooperation vice frame body on a plurality of plug-in slots and elastic plug-in rod locking structure, can freely adjust the filter material containing cavity height that constitutes by lower limit board and upper limit board, makes user not need to replace outer frame main body, through simple operation can adapt to different height filter material, has promoted the scope of application, effectively reduced the replacement cost when using different filter material.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and more specifically, to a seamless outer frame of an integrally injection-molded air filter. Background Technology

[0002] As the core component of the filtration system, the air filter element's outer frame structure's sealing performance and reliability directly affect the equipment's operating efficiency. The one-piece injection molding seamless outer frame technology is gradually replacing the traditional split metal frame due to its significant performance advantages. This technology achieves one-time molding of the frame in a mold using materials such as polyurethane.

[0003] However, existing one-piece injection molded frames cannot be adapted to multiple filter media models due to their rigid fixed structure. Since all slots and limit plate dimensions are fixed during the injection molding stage, the height of the filter media installation cavity is strictly limited. When users need to replace filter media of different heights, they are often forced to replace the entire filter element frame because the frame cannot be adjusted, resulting in a waste of resources.

[0004] In light of this, we propose a seamless frame for an integrated injection-molded air filter element. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a seamless outer frame for an integrated injection-molded air filter element, thereby solving the problem mentioned in the background art that the traditional seamless outer frame for integrated injection-molded air filter elements has poor adaptability to different types of filter media.

[0007] 2. Technical Solution

[0008] The seamless outer frame of the one-piece injection molded air filter includes a main frame, a secondary frame, multiple mounting slots on the main frame, two first sliding grooves on the main frame, and multiple rear limiting plates located at the rear of the main frame. The main frame, mounting slots, first sliding grooves, and rear limiting plates are integrally molded from polyurethane foam material by injection molding. The secondary frame is detachably connected to the main frame via mounting components. A movable plate is slidably connected to the secondary frame, and the secondary frame is provided with an adjustment component for adjusting the height of the movable plate to accommodate more types of filter media.

[0009] Preferably, the mounting assembly includes two first sliders fixedly connected to both sides of the sub-frame and a mounting block elastically connected to the sub-frame. The size of the first slider is adapted to the size of the first groove, and the size of the mounting block is adapted to the size of the mounting groove.

[0010] Preferably, the end face of the mounting block is inclined, and the mounting block is elastically connected to the sub-frame via a first spring.

[0011] Preferably, the adjustment assembly includes a second slider fixedly connected to both sides of the movable plate and a second slide groove adapted to the second slider on the sub-frame. Both sides of the movable plate are elastically connected with insert rods, and the sub-frame has a plurality of slots adapted to the size of the insert rods.

[0012] Preferably, an adjusting rod is fixedly connected to the insert rod, and the adjusting rod is elastically connected to the movable plate through a second spring. The movable plate has a movable groove for the adjusting rod to move, and the movable groove is used to allow the adjusting rod to drive the insert rod out of the slot to adjust the height of the movable plate.

[0013] Preferably, a baffle is fixedly connected to the bottom of the movable plate, and the baffle is used to block the space formed between the sub-frame and the bottom of the movable plate when the movable plate rises.

[0014] Preferably, an upper limit plate for limiting the filter material is fixedly connected to the top of the sub-frame, and a lower limit plate for limiting the filter material is fixedly connected to the movable plate.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model features an adjustable height movable plate design, combined with multiple slots and a spring-loaded locking structure on the sub-frame. This allows for free adjustment of the height of the filter media receiving cavity, which consists of a lower limit plate and an upper limit plate. This eliminates the need for users to replace the outer frame body; they can easily adapt to filter media of different heights through simple operation. This improves the applicability of the frame and effectively reduces the replacement cost when using different filter media.

[0018] 2. The follow-up baffle structure of this utility model forms a closed-loop seal with the overlapping interlocking interface between the main and auxiliary frames. When the movable plate moves up and down, the baffle moves synchronously and always covers the gap generated by the adjustment, ensuring that the filter chamber is isolated from the external environment.

[0019] 3. The adjusting rod and spring preload buckle of this utility model make the operation of adjusting the height of the movable plate more convenient. In addition, the sub-frame and the main frame are also conveniently disassembled and assembled through the inclined mounting block, which also avoids physical damage to the sealing surface caused by repeated disassembly and assembly, and greatly improves the efficiency of replacing filter media and maintenance. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a diagram showing the state of the present invention when the filter media is installed with a shorter length.

[0022] Figure 3 This is an exploded view of the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the sub-frame of this utility model;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a diagram showing the connection relationship of the movable plates of the sub-frame of this utility model;

[0026] Figure 7 This is a cross-sectional view of the movable plate of this utility model.

[0027] The following are the labels in the diagram: 1. Main frame, 11. Rear limit plate, 12. Mounting slot, 2. Sub-frame, 21. Upper limit plate, 22. Lower limit plate, 23. Movable plate, 24. Baffle, 3. Mounting assembly, 31. First slider, 32. First slide groove, 33. Mounting block, 34. First spring, 4. Adjustment assembly, 42. Second slider, 43. Second slide groove, 44. Insert rod, 45. Slot, 46. Second spring, 47. Adjustment rod, 48. Movable slot. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-7 This utility model provides a technical solution:

[0032] The seamless outer frame of the one-piece injection-molded air filter includes a main frame 1, a secondary frame 2, multiple mounting slots 12 on the main frame 1, two first sliding grooves 32 on the main frame 1, and multiple rear limiting plates 11 located at the rear of the main frame 1. The main frame 1, the multiple mounting slots 12, the two first sliding grooves 32, and the multiple rear limiting plates 11 are integrally molded from polyurethane foam material by injection molding. The secondary frame 2 is detachably connected to the main frame 1 via mounting components 3. A movable plate 23 is slidably connected to the secondary frame 2. An adjustment component 4 is provided on the secondary frame 2 to adjust the height of the movable plate 23 so that the frame can adapt to more types of filter media. This design achieves seamless integral molding of the main frame 1 and all its functional structures through injection molding, eliminating the risk of leakage caused by seams in traditional frames made of four side panels. In addition, the material's own elasticity forms a uniform wrapping force on the filter media, which can also prevent the filter media edges from being damaged by rigid compression, further improving airtightness and protecting the filter media.

[0033] Secondly, the mounting assembly 3 includes two first sliders 31 fixedly connected to both sides of the sub-frame 2 and a mounting block 33 elastically connected to the sub-frame 2. The size of the first slider 31 is adapted to the size of the first slide groove 32, and the size of the mounting block 33 is adapted to the size of the mounting groove 12. With this configuration, the physical guidance of the slide groove and the elastic locking of the mounting groove 12 ensure axial alignment when the sub-frame 2 is pushed in along the slide groove, while the mounting block 33 automatically engages with the mounting groove 12 under the action of the spring to complete further fixation. This allows the main and sub-frames 2 to achieve precise assembly without the need for tool assistance, greatly reducing the probability of seal failure caused by assembly deviation.

[0034] Furthermore, the end face of the mounting block 33 is set at an angle. The mounting block 33 is elastically connected to the sub-frame 2 through the first spring 34. With this setting, when the sub-frame 2 is inserted into the main frame 1, the angled surface of the mounting block 33 is squeezed inward until it is fully inserted into the mounting groove 12, and then it is pushed back and locked by the spring. When disassembling, the two can be separated by pushing the mounting block 33 from the mounting groove 12. This setting not only improves the smoothness of installation, but also makes the two have a certain degree of vibration resistance stability after connection.

[0035] Specifically, the adjustment component 4 includes a second slider 42 fixedly connected to both sides of the movable plate 23 and a second slide groove 43 adapted to the second slider 42 and opened on the sub-frame 2. Both sides of the movable plate 23 are elastically connected to the insert rod 44. The sub-frame 2 is provided with multiple slots 45 adapted to the size of the insert rod 44. In this way, the sliding cooperation between the second slider 42 and the second slide groove 43 provides a vertical moving track for the movable plate 23. The combination of the elastic insert rod 44 and the multiple slots 45 realizes self-locking fixation after height adjustment. The user can freely select the slot 45 position according to the height of the filter material, so that the movable plate 23 is stably suspended at the target height, ensuring that filter materials of different specifications can be effectively compressed and sealed.

[0036] In addition, an adjusting rod 47 is fixedly connected to the insertion rod 44. The adjusting rod 47 is elastically connected to the movable plate 23 through a second spring 46. The movable plate 23 has a movable groove 48 for the adjustment rod 47 to move. The movable groove 48 is used to allow the adjusting rod 47 to drive the insertion rod 44 to disengage from the slot 45 to adjust the height of the movable plate 23. With this configuration, the insertion rod 44 can be directly pulled away by pulling the adjusting rod 47, and the movable plate 23 can be freely slid after being unlocked, which significantly improves the convenience and safety of adjustment.

[0037] Furthermore, a baffle 24 is fixedly connected to the bottom of the movable plate 23. The baffle 24 is used to cover the space formed between the sub-frame 2 and the bottom of the movable plate 23 when the movable plate 23 rises. With this setting, the problem of sealing gaps caused by height adjustment can be solved by the dynamic shielding function of the baffle 24. When the movable plate 23 moves up, the baffle 24 always covers the exposed area between its bottom and the sub-frame 2. This follow-up sealing allows the movable plate 23 to maintain the integrity of the airflow passage in any adjustment position.

[0038] In addition, an upper limit plate 21 for limiting the filter material is fixedly connected to the top of the sub-frame 2, and a lower limit plate 22 for limiting the filter material is fixedly connected to the movable plate 23. With this arrangement, the upper and lower limit plates 22 work together to effectively bind the filter material. Specifically, the upper limit plate 21 fixes the top position of the filter material, while the lower limit plate 22 moves synchronously with the movable plate 23. The two form an adjustable clamping space in the vertical direction, which effectively prevents edge leakage caused by filter material displacement.

[0039] Working principle:

[0040] When assembling the filter media into the frame, the filter media is first placed in the accommodating space between the sub-frame 2 and the movable plate 23. If the filter media height is not suitable, the adjusting rods 47 on both sides of the movable plate 23 are pulled to drive the insertion rod 44 out of the slot 45 on the sub-frame 2. After unlocking, the movable plate 23 is slid to the position matching the height of the filter media, and the adjusting rods 47 are released so that the insertion rod 44 springs into the corresponding slot 45 and is fixed. At this time, the baffle 24 at the bottom of the movable plate 23 moves up and covers the gap between it and the bottom of the sub-frame 2. Then, the sub-frame 2 after the filter media is assembled is pressed into the main frame 1. During this process, the first sliders 31 on both sides of the sub-frame 2 slide into the first sliding groove 32 of the main frame 1 to guide the position. Then, the inclined surface of the mounting block 33 is squeezed and contracted until it is completely fitted. The mounting block 33 also moves to the mounting groove 12, and is pushed by the first spring 34 into the mounting groove 12 of the main frame 1 to complete the locking.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrally molded air filter cartridge seamless outer housing characterized by: Including main frame (1), auxiliary frame (2), a plurality of installation groove (12) set in the main frame (1), two first sliding groove (32) set in the main frame (1) and a plurality of rear limiting plate (11) located in the rear side of the main frame (1), the main frame (1), a plurality of installation groove (12), two first sliding groove (32) and a plurality of rear limiting plate (11) are integrally formed by pouring into the forming mold by polyurethane foaming material, the auxiliary frame (2) is detachably connected with the main frame (1) through the mounting assembly (3), the movable plate (23) is slidably connected on the auxiliary frame (2), the adjusting assembly (4) for adjusting the height of the movable plate (23) to adapt to more types of filter material is arranged on the auxiliary frame (2).

2. The integrally molded air cleaner cartridge seamless outer shell of claim 1 wherein: The mounting assembly (3) includes two first sliding blocks (31) fixedly connected on both sides of the auxiliary frame (2) and a mounting block (33) elastically connected on the auxiliary frame (2), the size of the first sliding block (31) is matched with the size of the first sliding groove (32), and the size of the mounting block (33) is matched with the size of the installation groove (12).

3. The integrally molded air cleaner cartridge seamless outer shell of claim 2 wherein: The end surface of the mounting block (33) is obliquely arranged, and the mounting block (33) is elastically connected with the auxiliary frame (2) through the first spring (34).

4. The integrally molded air cleaner cartridge seamless outer shell of claim 1 wherein: The adjusting assembly (4) includes second sliding blocks (42) fixedly connected on both sides of the movable plate (23) and a second sliding groove (43) set in the auxiliary frame (2) and matched with the second sliding block (42), and the movable plate (23) is elastically connected with a plug rod (44) on both sides, and a plurality of plug grooves (45) matched with the size of the plug rod (44) are formed in the auxiliary frame (2).

5. The integrally molded air cleaner cartridge seamless outer shell of claim 4 wherein: The plug rod (44) is fixedly connected with an adjusting rod (47), the adjusting rod (47) is elastically connected with the movable plate (23) through the second spring (46), the movable plate (23) is provided with a movable groove (48) for the movement of the adjusting rod (47), and the movable groove (48) is used for driving the plug rod (44) to be separated from the plug groove (45) to adjust the height of the movable plate (23).

6. The integrally molded air cleaner cartridge seamless outer shell of claim 5 wherein: The bottom of the movable plate (23) is fixedly connected with a baffle (24), and the baffle (24) is used for shielding the space formed between the auxiliary frame (2) and the bottom of the movable plate (23) when the movable plate (23) rises.

7. The integrally molded air cleaner cartridge seamless outer shell of claim 1 wherein: The top of the auxiliary frame (2) is fixedly connected with an upper limiting plate (21) for limiting filter material, and the movable plate (23) is fixedly connected with a lower limiting plate (22) for limiting filter material.

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