A filter and filtration system

Abstract

The utility model discloses a filter and filter system relates to air filter technical field. The filter includes the shell and filter core, the shell includes detachable connection's upper shell and lower shell, the upper shell is connected with the air inlet pipe and the air outlet pipe, the annular and the installation cylinder of lower end opening are arranged in the upper shell, the installation cylinder is connected with the air outlet pipe, and the lower end of installation cylinder is higher than the connecting position of upper shell and lower shell, the filter core is arranged in the shell and is detachable with the lower end of installation cylinder. The filter is convenient for operator to replace filter core, and the safety hidden danger when operator replaces filter core is solved.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to a filter and filtration system. Background Technology

[0002] An air filter is a device that filters and separates impurities such as water vapor, oil droplets, and dust from compressed air, ensuring the cleanliness of the gas and improving the working efficiency and service life of air source components. Generally, air filters are installed vertically, which results in the removable part of the air filter housing being set too high. When operators replace the filter element, they need to use ladders or other tools, which is inconvenient and poses a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a filter and filtration system that facilitates filter replacement by operators and solves the safety hazards that operators may encounter when replacing filter elements.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A filter, characterized in that it comprises:

[0006] The outer shell includes a detachably connected upper shell and a lower shell. The upper shell is connected to an air inlet pipe and an air outlet pipe. An annular mounting cylinder with an open lower end is provided inside the upper shell. The mounting cylinder is connected to the air outlet pipe, and the lower end of the mounting cylinder is higher than the connection position between the upper shell and the lower shell.

[0007] A filter element is disposed inside the housing and detachably connected to the lower end of the mounting cylinder.

[0008] As an alternative to the above-mentioned filter, the lower end of the mounting cylinder is provided with a connecting structure, and the upper shell is provided with a guiding structure. The filter element is guided and cooperated with the guiding structure so that the filter element is connected to the mounting cylinder through the connecting structure.

[0009] As an alternative to the above-mentioned filter, the guiding structure is a guide groove, and the side wall of the filter element is provided with a slider, which can be slidably disposed in the guide groove.

[0010] As an optional solution for the above-mentioned filter, the connection structure includes a locking groove, the locking groove includes a guide section, and the guide section has the same guiding direction as the guide structure. The side wall of the filter element is provided with a locking block, and the locking block can be slidably disposed on the guide section.

[0011] As an alternative to the above-mentioned filter, the guide stroke of the guide segment intersects with the guide stroke of the guide structure.

[0012] As an alternative to the above-mentioned filter, the locking groove further includes a locking section that extends circumferentially along the mounting cylinder, and one end of the locking section is connected to the guide section.

[0013] As an alternative to the above-mentioned filter, one of the locking section and the locking block is provided with a slot, and the other of the locking section and the locking block is provided with a locking pin. The locking pin can be engaged in the slot to lock the relative angle between the filter element and the mounting cylinder.

[0014] As an optional feature of the above-mentioned filter, both the inlet pipe and the outlet pipe are rotatably connected to a fixed flange.

[0015] As an optional solution for the aforementioned filter, the lower housing is provided with a drain port.

[0016] A filtration system includes a plurality of filters connected in sequence, wherein the filtration accuracy of the filter elements of the plurality of filters gradually decreases along the filtration direction.

[0017] The beneficial effects of this utility model are:

[0018] This invention provides a filter and a filtration system. In this filter, the upper shell of the outer casing is used to connect to an air pipeline. When compressed air enters the outer casing through the inlet pipe, it passes through the filter element. The compressed air filtered by the filter element can then be discharged through the mounting cylinder and the outlet pipe, thus achieving the filtration of the compressed air. Because the lower end of the mounting cylinder is higher than the connection point between the upper and lower shells, the connection point between the upper and lower shells can be set lower, allowing operators to disassemble and assemble the lower shell while standing on the ground, thereby replacing the filter element.

[0019] This filter makes it easy for operators to replace the filter element and eliminates the safety hazards that operators may encounter when replacing the filter element. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a filter provided in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a filter element provided in one embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of a filter provided in one embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the outer casing provided in one embodiment of the present utility model;

[0024] Figure 5 This is a cross-sectional view of the upper shell provided in one embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the upper shell structure provided in one embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the mounting cylinder provided in one embodiment of the present invention.

[0027] In the picture:

[0028] 1. Outer shell; 11. Upper shell; 111. Inlet pipe; 112. Outlet pipe; 113. Fixed flange; 114. Guide groove; 12. Lower shell; 121. Drain port; 13. Mounting cylinder; 131. Locking groove; 1311. Locking section; 1312. Guide section; 132. Locking pin; 133. Sliding ring; 134. Drive rod; 135. Cylinder body; 136. Annular outer edge;

[0029] 2. Filter element; 21. Slider; 22. Locking block; 23. Slot. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0032] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] This embodiment provides a filtration system, which includes a filter, such as... Figures 1-3 As shown, the filter includes a housing 1 and a filter element 2. The housing 1 includes an upper shell 11 and a lower shell 12 that are detachably connected. The upper shell 11 is connected to an air inlet pipe 111 and an air outlet pipe 112. An annular mounting cylinder 13 with an open lower end is provided inside the upper shell 11. The mounting cylinder 13 is connected to the air outlet pipe 112. The filter element 2 is disposed inside the housing 1 and is detachably connected to the lower end of the mounting cylinder 13.

[0036] In this embodiment, the filter is installed in the compressed air pipeline. The upper shell 11 of the outer casing 1 is used to connect to the air pipeline. Compressed air enters the outer casing 1 through the inlet pipe 111, and is filtered by the filter element 2 when it passes through the filter element 2. The filtered compressed air can be discharged through the mounting cylinder 13 and the outlet pipe 112, thereby achieving the filtration of compressed air.

[0037] Preferably, the filtration system includes multiple filters connected in sequence, with the filtration precision of the filter elements 2 gradually decreasing along the filtration direction. The multiple filters are connected in sequence via air pipes, and compressed air passes through them sequentially. The filtration direction is the same as the flow direction of the compressed air. The multiple filters can perform step-by-step filtration of the compressed air, thereby improving the filtration effect.

[0038] The filtration accuracy of filter element 2 refers to the smallest particle size that filter element 2 can effectively intercept. By using multiple filter elements 2 to intercept particles step by step, it is possible to minimize the clogging of filter elements 2, reduce the frequency of filter element 2 replacement, and reduce the workload of operators.

[0039] like Figures 1-3As shown, this embodiment also provides a filter, the lower end of the mounting cylinder 13 of the filter is higher than the connection position of the upper shell 11 and the lower shell 12. Therefore, the connection position of the upper shell 11 and the lower shell 12 can be set lower, so that the operator can reach the connection position of the upper shell 11 and the lower shell 12 while standing on the ground. This makes it convenient for the operator to replace the filter element 2 and solves the safety hazards when the operator replaces the filter element 2.

[0040] In this embodiment, a connecting structure is provided at the lower end of the mounting cylinder 13, and a guiding structure is provided inside the upper shell 11. The filter element 2 is guided and cooperated with the guiding structure so that the filter element 2 is connected to the mounting cylinder 13 through the connecting structure. It can be understood that in this filter, the connecting structure at the lower end of the mounting cylinder 13 is located inside the upper shell 11. The operator needs to move the filter element 2 upward inside the upper shell 11 to connect the filter element 2 with the connecting structure. At this time, the guiding structure can restrict the position and angle of the filter element 2 to ensure that the filter element 2 can be accurately aligned with the connecting structure.

[0041] like Figures 3-6 As shown, preferably, the guiding structure is a guide groove 114, and a slider 21 protrudes from the side wall of the filter element 2. The slider 21 can be slidably disposed in the guide groove 114. During the process of the operator installing the filter element 2 into the upper shell 11, the guide groove 114 can restrict the rotation and radial movement of the filter element 2 through the slider 21, thereby ensuring that the filter element 2 can be aligned with the connection structure at the lower end of the mounting cylinder 13 at the correct position and angle, and ensuring the smooth installation of the filter element 2.

[0042] It is worth noting that, in order to improve applicability, the slider 21 is fixed to the surface of the filter element 2 by a locking sleeve. When the filter element 2 is replaced, the locking sleeve can be removed and re-fitted onto the new filter element 2, so that the filter element 2 does not need to be designed separately and can be selected according to the commonly used specifications on the market, thereby avoiding the cost of redesigning and producing the filter element 2.

[0043] In some embodiments, the guide structure may also be a slide rail, and the side wall of the filter element 2 is provided with two guide blocks spaced apart, and the slide rail is disposed in the guide blocks to guide the filter element 2.

[0044] like Figures 4-7 As shown, the connection structure includes a locking groove 131, which includes a locking section 1311 and a guide section 1312 connected to each other. The locking section 1311 extends circumferentially along the mounting cylinder 13, and the guide section 1312 has the same guiding direction as the guide structure. A locking block 22 is protruding from the side wall of the filter element 2, and the locking block 22 can be slidably disposed on the guide section 1312 and the locking section 1311.

[0045] Understandably, when the operator pushes the filter element 2 into the upper shell 11, the angle of the filter element 2 relative to the upper shell 11 will not change due to the guiding effect of the guide structure. This allows the locking block 22 of the filter element 2 to smoothly enter the guide section 1312. Before the locking block 22 enters the locking groove 131, it is necessary to ensure that the guide structure ends its guiding effect on the filter element 2 so that the filter element 2 can rotate and thus the locking block 22 enters the locking groove 131 to lock the filter element 2.

[0046] In this embodiment, along the axial direction of the mounting cylinder 13, when the locking block 22 of the filter element 2 moves to the position of the locking groove 131, the slider 21 has already slid out of the guide groove 114. That is to say, the top of the guide groove 114 is an open structure to ensure that the slider 21 can slide out of the guide groove 114.

[0047] Preferably, the guide stroke of the guide segment 1312 overlaps with the guide stroke of the guide structure. Specifically, the guide stroke of the guide segment 1312 refers to the stroke of the locking block 22 within the guide segment 1312, and the guide stroke of the guide structure refers to the stroke of the slider 21 within the guide groove 114. In this embodiment, it is necessary to ensure that during the insertion of the filter element 2 into the upper shell 11, at least a portion of the stroke occurs when the locking block 22 is located within the guide segment 1312 and the slider 21 is located within the guide groove 114. For example... Figure 3 As shown, when the locking block 22 just slides into the guide section 1312, the slider 21 has not yet disengaged from the guide groove 114, thus ensuring that the filter element 2 will not rotate relative to the mounting cylinder 13 before the locking block 22 slides to the locking section 1311, so as to ensure that the locking block 22 can smoothly enter the guide section 1312 and avoid increasing the time for replacing the filter element 2 because the operator cannot observe the connection structure of the mounting cylinder 13.

[0048] like Figure 2 and Figure 5 As shown, the locking section 1311 is provided with a slot 23, and the mounting cylinder 13 is provided with a locking pin 132. The locking pin 132 can be inserted into the slot 23 to lock the relative angle between the filter element 2 and the mounting cylinder 13, so as to prevent the filter element 2 from vibrating and rotating when compressed air passes through the filter element 2, and to ensure the stability of the filter element 2 when filtering compressed air.

[0049] Specifically, the mounting cylinder 13 includes a cylinder body 135 and an annular outer edge 136. The outer diameter of the cylinder body 135 is smaller than the outer diameter of the annular outer edge 136 to form a step between the cylinder body 135 and the annular outer edge 136. The locking groove 131 is provided on the inner wall of the annular outer edge 136. After the filter element 2 is inserted into the annular outer edge 136, it can be locked with the locking groove 131. The annular outer edge 136 can prevent the filter element 2 from shaking and improve the stability of the filter element 2 installation. The locking pin 132 passes through the step and can move relative to the annular outer edge 136 to engage or disengage from the locking groove 23.

[0050] To ensure that all compressed air passes through filter element 2, a sealing ring is provided between filter element 2 and mounting cylinder 13.

[0051] Furthermore, the mounting cylinder 13 also includes an elastic element (not shown in the figure), which is configured to drive the locking pin 132 into the locking groove 23. The elastic element can further improve the stability of the locking pin 132 locking the filter element 2, and prevent the locking pin 132 from coming out of the locking groove 23 during the process of filtering compressed air.

[0052] It is worth noting that, in order to further improve the stability of the filter element 2 during the process of installing it into the upper shell 11, the side wall of the filter element 2 is provided with multiple locking blocks 22 and sliders 21. The multiple sliders 21 slide against the inner wall of the upper shell 11, thereby ensuring that the filter element 2 will not rotate or move radially during the process of installing it into the upper shell 11. The multiple locking blocks 22 can evenly distribute the locking force of the mounting cylinder 13 on the filter element 2 in the circumferential direction, and the locking force on each locking block 22 is small, which can avoid damage to the locking block 22 and cause sealing problems between the filter element 2 and the mounting cylinder 13.

[0053] In this embodiment, the mounting cylinder 13 is provided with multiple locking pins 132, each corresponding to a multiple locking block 22. The multiple locking pins 132 are inserted into the corresponding locking block 22's slot 23, which evenly distributes the locking force of the locking pins 132 on the filter element 2 circumferentially. Furthermore, each locking pin 132 provides a relatively small locking force, preventing damage to the locking pins 132 and thus preventing the filter element 2 from rotating.

[0054] Furthermore, multiple locking pins 132 are connected by a sliding ring 133 to ensure that multiple locking pins 132 are simultaneously engaged or disengaged from the slot 23.

[0055] In this embodiment, in order to facilitate the operator to disengage the locking pin 132 from the locking slot 23, thereby disassembling or installing the filter element 2, the sliding ring 133 is connected to the drive rod 134, and the lower end of the drive rod 134 is lower than the connection position between the upper shell 11 and the lower shell 12, so that the operator can drive the sliding ring 133 to move through the drive rod 134.

[0056] like Figure 3 and Figure 4 As shown, a drain port 121 is provided at the bottom of the lower shell 12, and a drain valve is installed at the drain port 121. After the compressed air is filtered by the filter element 2, the water vapor, oil droplets and dust mixed in the gas are filtered out and left behind. The clean compressed air is discharged from the air outlet pipe 112. The water vapor, oil droplets and dust blocked by the filter element 2 will be deposited at the bottom of the lower shell 12. The operator can open the drain valve periodically to discharge the deposited water vapor, oil droplets and dust.

[0057] like Figure 1 and Figure 2 As shown, both the air inlet pipe 111 and the air outlet pipe 112 are rotatably connected to a fixed flange 113. When the filter is installed at a low position, the filter element 2 cannot be removed vertically from the upper shell 11. In this case, the upper shell 11 can be rotated to complete the disassembly and assembly of the filter element 2, making it convenient for operators to replace the filter element 2.

[0058] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A filter, characterized by, include: The outer shell (1) includes a detachably connected upper shell (11) and lower shell (12). The upper shell (11) is connected to an air inlet pipe (111) and an air outlet pipe (112). An annular mounting cylinder (13) with an open lower end is provided inside the upper shell (11). The mounting cylinder (13) is connected to the air outlet pipe (112), and the lower end of the mounting cylinder (13) is higher than the connection position of the upper shell (11) and the lower shell (12). The filter element (2) is disposed inside the housing (1) and detachably connected to the lower end of the mounting cylinder (13).

2. The filter of claim 1, wherein, The lower end of the mounting cylinder (13) is provided with a connecting structure, and the upper shell (11) is provided with a guiding structure. The filter element (2) is guided and cooperated with the guiding structure so that the filter element (2) is connected to the mounting cylinder (13) through the connecting structure.

3. The filter of claim 2, wherein, The guiding structure is a guide groove (114), and the side wall of the filter element (2) is provided with a slider (21), which can be slidably disposed in the guide groove (114).

4. The filter of claim 2, wherein, The connection structure includes a locking groove (131), which includes a locking section (1311) and a guide section (1312) connected to each other. The locking section (1311) extends circumferentially along the mounting cylinder (13), and the guide section (1312) has the same guiding direction as the guide structure. A locking block (22) is protruding from the side wall of the filter element (2), and the locking block (22) is slidably disposed between the guide section (1312) and the locking section (1311).

5. The filter of claim 4, wherein, The guide stroke of the guide segment (1312) intersects with the guide stroke of the guide structure.

6. The filter of claim 4, wherein, The locking section (1311) is provided with a slot (23), and the mounting cylinder (13) is provided with a locking pin (132). The locking pin (132) can be inserted into the slot (23) to lock the relative angle between the filter element (2) and the mounting cylinder (13).

7. The filter of claim 6, wherein, The mounting cylinder (13) also includes an elastic element configured to drive the locking pin (132) into the locking slot (23).

8. The filter of claim 6, wherein, The mounting cylinder (13) is provided with multiple locking pins (132), and the multiple locking pins (132) are connected by a sliding ring (133). The side wall of the filter element (2) is provided with multiple locking blocks (22), and the multiple locking pins (132) correspond one-to-one with the multiple locking blocks (22).

9. The filter of claim 1, wherein, Both the air inlet pipe (111) and the air outlet pipe (112) are rotatably connected to a fixed flange (113).

10. A filtration system characterized by, The filter comprises a plurality of filters according to any one of claims 1 to 9, wherein the plurality of filters are connected in sequence, and the filtration accuracy of the filter element (2) of the plurality of filters gradually decreases along the filtration direction.

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