Switchable filter

Abstract

The utility model relates to the field of filters, and discloses a switchable filter which comprises a filter body, an upper cover is arranged at the top end of the filter body, a sealing gasket is arranged at the bottom end of the upper cover, the bottom end of the sealing gasket is attached to the inner wall of the filter body, and a fixing assembly is arranged on the inner wall of the upper side of the upper cover and comprises a threaded rod. The bottom end of the threaded rod is fixedly connected to the inner wall of the upper side of the upper cover, the outer side of the threaded rod is in threaded connection with a limiting column, the bottom end of the limiting column is rotationally connected with a moving block, the bottom end of the moving block is fixedly connected with a guide block, and a guide groove is obliquely formed in the lower side of the guide block. According to the utility model, through the cooperative use of the upper cover, the fixing assembly and the filter, when the filter element needs to be replaced, the limiting column is rotated to drive the moving block to ascend, so that the limiting plate can be driven to slide out of the limiting groove to quickly release the limiting of the upper cover, and the replacement process of the filter element is quick and efficient.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a switchable filter. Background Art

[0002] Switchable filters, such as the double switch filter, are multi-purpose filtration equipment consisting of two stainless steel filters in parallel. By alternating the operation of the two filter units, the filter units can be maintained and cleaned without interrupting the production process, thereby minimizing downtime in production.

[0003] The working principle of the double switching filter is based on the alternating operation of two filter units. When one filter unit is working, the other unit is in standby state. When the filter medium of the working unit becomes saturated or requires maintenance, the system will automatically or manually switch the process to the standby unit to achieve continuous filtration. This switching operation ensures the efficient operation of the system and reduces the frequency of production line shutdowns.

[0004] The double switchable filter currently used has its top portion fixed by multiple sets of bolts during installation to ensure its stability and safety. When the filter element needs to be replaced, these bolts need to be removed one by one so that the top cover of the filter can be opened and the filter element can be replaced. This process is not only time-consuming and labor-intensive, but also increases the difficulty of replacing the filter element. Therefore, a switchable filter is proposed to solve the above problem. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a switchable filter, which aims to improve the problem in the prior art that "when replacing the filter element, the bolts need to be removed one by one to open the filter cover, which is a time-consuming and labor-intensive process and increases the difficulty of replacing the filter element."

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a switchable filter, including a filter, an upper cover is provided at the top of the filter, a sealing gasket is provided at the bottom end of the upper cover, the bottom end of the sealing gasket is attached to the inner wall of the filter, a fixing component is provided on the upper inner wall of the upper cover, the fixing component includes a threaded rod, the bottom end of the threaded rod is fixedly connected to the upper inner wall of the upper cover, the outer side of the threaded rod is threadedly connected to a limiting column, and the bottom end of the limiting column is rotatably connected to a moving block.

[0007] As a further description of the above technical solution:

[0008] The bottom end of the moving block is fixedly connected with a guide block, the lower side of the guide block is inclined with a guide groove, the inner wall of the guide groove is slidably connected with a limit plate, and the outer side of the limit plate is slidably connected to the inner wall of the upper cover.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the filter is provided with a limiting groove near the outer side of the limiting plate, the top end of the limiting plate away from the guide groove is set as an inclined surface, the limiting groove is inclined, and the inclined surface of the outer side of the limiting plate is attached to the inclined surface of the limiting groove.

[0011] As a further description of the above technical solution:

[0012] The guide blocks and the limit plates are provided in three groups, and the three groups of guide blocks and the limit plates are arranged in a circular array with the center line of the moving block as the center.

[0013] As a further description of the above technical solution:

[0014] The size of the limiting groove is larger than that of the limiting plate and its inclined surface.

[0015] As a further description of the above technical solution:

[0016] A limiting assembly is arranged on the left side of the upper cover near the limiting column, and the limiting assembly includes a rotating plate, the bottom end of which is rotatably connected to the inner wall of the top end of the upper cover, the outer side of the rotating plate near the limiting column is arranged in a semi-arc shape, and a fixing cylinder is fixedly connected to the rear side of the semi-arc shape of the rotating plate.

[0017] As a further description of the above technical solution:

[0018] A pull rod is slidably connected through the top end of the fixed cylinder, the pull rod and the fixed cylinder are elastically connected via a compression spring, and a limiting hole is provided near the bottom end of the pull rod on the upper cover.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the pull rod slides on the inner wall of the limiting hole, and the limiting column is provided with a slot near the rotating plate, and the rotating plate slides in a semi-arc shape on the inner wall of the slot.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the coordinated use of the upper cover, the fixing assembly and the filter, when the filter element needs to be replaced, the limit column is rotated to drive the moving block to rise, thereby driving the limit plate to slide out of the limit groove, quickly releasing the limit on the upper cover, making the filter element replacement process quick and efficient.

[0023] 2. In the utility model, through the coordinated use of the upper cover, the limit assembly and the limit column, after the upper cover is closed, the rotating plate is rotated to make the outer periphery of the rotating plate slide into the inner wall of the slot, thereby limiting the limit column, effectively resisting the vibration that may be generated when the filter is working, and ensuring the stability of the limit column. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0025] Figure 2 It is a partial cross-sectional schematic diagram of the three-dimensional structure of the filter in the utility model from the right side;

[0026] Figure 3 This is a schematic diagram of a split three-dimensional structure that is fixedly connected in the utility model;

[0027] Figure 4 It is a partial cross-sectional schematic diagram of the left-side three-dimensional structure of the upper cover of the utility model;

[0028] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0029] Legend:

[0030] 1. Filter; 2. Upper cover; 3. Sealing gasket; 41. Threaded rod; 42. Limiting column; 43. Moving block; 44. Guide block; 45. Guide groove; 46. Limiting plate; 47. Limiting groove; 51. Rotating plate; 52. Fixed cylinder; 53. Pull rod; 54. Compression spring; 55. Limiting hole; 56. Card slot. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3, the utility model provides an embodiment: a switchable filter, including a filter 1, which is a switchable filter 1, a filter element is arranged inside, and is a multi-purpose filtering device formed by two stainless steel filters 1 connected in parallel. The technology is the prior art, so it is not described in detail. A top cover 2 is arranged on the top of the filter 1, which is used to close the filter 1, so as to ensure the stability and safety of the filter 1 when working. A sealing gasket 3 is arranged at the bottom end of the upper cover 2, which is used to improve the sealing between the upper cover 2 and the sealing gasket 3. The bottom end of the sealing gasket 3 is attached to the inner wall of the filter 1, and a fixing component is arranged on the upper inner wall of the upper cover 2. The fixing component includes a threaded rod 41, and the bottom end of the threaded rod 41 is fixedly connected to the upper inner wall of the upper cover 2. The thread on the limit column 42 can drive the limit column 42 to move up and down stably, and at the same time, the limit column 42 can be limited to improve the stability of the upper cover 2.

[0033] Furthermore, the outer side of the threaded rod 41 is threadedly connected to the limiting column 42, and three groups of rotating rods are fixedly connected to the upper side of the limiting column 42, which can facilitate the operator to rotate the limiting column 42 to drive the moving block 43 to move up and down. The bottom end of the limiting column 42 is rotatably connected to the moving block 43, and the moving block 43 is used to drive the three groups of guide blocks 44 to move. The bottom end of the moving block 43 is fixedly connected to the guide block 44, and the guide groove 45 obliquely opened on the upper side thereof pushes the limiting plate 46 to move outward during movement. The lower side of the guide block 44 is obliquely opened with a guide groove 45, which is used to guide the limiting plate 46 to slide on the inner wall of the upper cover 2. The inner wall of the guide groove 45 is slidably connected to the limiting plate 46, which slides into the limiting groove 47 on the inner wall of the filter 1, thereby fixing the upper cover 2, and the outer side of the limiting plate 46 is slidably connected to the inner wall of the upper cover 2.

[0034] Reference Figure 2 and Figure 3 , three groups of guide blocks 44 and limiting plates 46 are provided, and the three groups of guide blocks 44 and limiting plates 46 are arranged in a circular array with the center line of the moving block 43 as the center, which can evenly fix and limit the upper cover 2 from three directions, so that the connection between the upper cover 2 and the filter 1 is more stable and balanced, and can better withstand the pressure and vibration during the working process, ensuring the stability and sealing of the entire filtering device. A limiting groove 47 is provided on the inner wall of the filter 1 near the outer side of the limiting plate 46, which cooperates with the limiting plate 46 to accommodate and fix the limiting plate 46, enhancing the upper In order to improve the stability of the connection between the cover 2 and the filter 1, the top end of the limit plate 46 away from the guide groove 45 is set as an inclined surface, the limit groove 47 is opened at an angle, and the inclined surface on the outside of the limit plate 46 fits on the inclined surface of the limit groove 47. The size of the limit groove 47 is larger than that of the limit plate 46 and its inclined surface. Through the fit between the inclined surface on the limit plate 46 and the inclined surface on the limit groove 47, when the limit plate 46 moves, the upper cover 2 can obtain a downward pressure, so that the upper cover 2 squeezes the sealing gasket 3, thereby improving the sealing performance of the upper cover 2.

[0035] Reference Figure 2 , Figure 4 and Figure 5 A limiting assembly is provided on the left side of the upper cover 2 near the limiting column 42, and the limiting assembly includes a rotating plate 51, the bottom end of the rotating plate 51 is rotatably connected to the inner wall of the top end of the upper cover 2, and the rotating plate 51 is arranged in a semi-arc shape near the outer side of the limiting column 42. By rotating the rotating plate 51, the semi-arc-shaped part thereof cooperates with the card slot 56 of the limiting column 42 to limit the limiting column 42, effectively resisting the vibration that may be generated when the filter 1 is working, and ensuring the stability of the limiting column 42. A fixing cylinder 52 is fixedly connected to the semi-arc rear side of the rotating plate 51, providing installation space for the pull rod 53 and the compression spring 54, and a pull rod 53 is slidably connected to the top of the fixing cylinder 52, and is arranged in a T shape, so that the operator can pull the pull rod 53 conveniently.

[0036] Furthermore, the pull rod 53 and the fixed cylinder 52 are elastically connected by a compression spring 54, which provides elastic restoring force for the pull rod 53 so that it can be stably stuck in the limiting hole 55. The upper cover 2 is provided with a limiting hole 55 near the bottom end of the pull rod 53 for positioning the pull rod 53, thereby limiting the rotating plate 51 so that the rotating plate 51 is stably fixed in the slot 56 on the limiting column 42. The bottom end of the pull rod 53 slides on the inner wall of the limiting hole 55. The limiting column 42 is provided with a slot 56 near the rotating plate 51, which cooperates with the semi-arc part of the rotating plate 51 to accept the limiting of the rotating plate 51, effectively resisting the vibration that may be generated when the filter 1 is working, ensuring the stability of the limiting column 42, and the rotating plate 51 slides semi-arc on the inner wall of the slot 56.

[0037] Working principle: During use, when the filter element in the switchable filter 1 needs to be replaced, first pull the pull rod 53 to squeeze the compression spring 54, thereby driving the pull rod 53 to slide out from the inner wall of the limiting hole 55. At this time, the rotating plate 51 can be driven to rotate, so that its semi-arc-shaped part slides out of the slot 56 on the limiting column 42, thereby releasing the limit on the limiting column 42.

[0038] Then, by rotating the limiting column 42, since the threaded rod 41 is threadedly connected to the limiting column 42, the limiting column 42 will move upward along the threaded rod 41, and the limiting column 42 drives the moving block 43 connected to its bottom end to move upward, and the guide block 44 fixed at the bottom end of the moving block 43 also moves upward.

[0039] Since the guide groove 45 obliquely opened on the lower side of the guide block 44 is slidably connected with the limit plate 46, when the guide block 44 moves upward, it will drive the limit plate 46 to slide inward along the inner wall of the upper cover 2 until the limit plate 46 is separated from the limit groove 47 on the inner wall of the filter 1. At this time, the upper cover 2 can be removed, making the filter element replacement process quick and efficient.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switchable filter, comprising a filter (1), characterized in that: The top of the filter (1) is provided with an upper cover (2), the bottom of the upper cover (2) is provided with a sealing gasket (3), the bottom of the sealing gasket (3) is attached to the inner wall of the filter (1), the upper inner wall of the upper cover (2) is provided with a fixing assembly, the fixing assembly comprises a threaded rod (41), the bottom end of the threaded rod (41) is fixedly connected to the upper inner wall of the upper cover (2), the outer side of the threaded rod (41) is threadedly connected to a limiting column (42), and the bottom end of the limiting column (42) is rotatably connected to a moving block (43).

2. The switchable filter according to claim 1, characterized in that: The bottom end of the moving block (43) is fixedly connected to a guide block (44), the lower side of the guide block (44) is obliquely provided with a guide groove (45), the inner wall of the guide groove (45) is slidably connected to a limit plate (46), and the outer side of the limit plate (46) is slidably connected to the inner wall of the upper cover (2).

3. The switchable filter according to claim 2, characterized in that: The inner wall of the filter (1) is provided with a limiting groove (47) near the outer side of the limiting plate (46); the top end of the limiting plate (46) away from the guide groove (45) is arranged as an inclined surface; the limiting groove (47) is provided with an inclined surface; and the inclined surface of the outer side of the limiting plate (46) is fitted on the inclined surface of the limiting groove (47).

4. The switchable filter according to claim 3, characterized in that: The guide blocks (44) and the limit plates (46) are provided in three groups, and the three groups of guide blocks (44) and the limit plates (46) are arranged in a circular array with the center line of the moving block (43) as the center.

5. The switchable filter according to claim 4, characterized in that: The size of the limiting groove (47) is larger than that of the limiting plate (46) and its inclined surface.

6. The switchable filter according to claim 1, characterized in that: A limit assembly is arranged on the left side of the upper cover (2) near the limit column (42), and the limit assembly comprises a rotating plate (51), the bottom end of the rotating plate (51) is rotatably connected to the inner wall of the top end of the upper cover (2), the outer side of the rotating plate (51) near the limit column (42) is arranged in a semi-arc shape, and the rear side of the semi-arc shape of the rotating plate (51) is fixedly connected to a fixing cylinder (52).

7. The switchable filter according to claim 6, characterized in that: A pull rod (53) is slidably connected through the top end of the fixed cylinder (52), and the pull rod (53) is elastically connected to the fixed cylinder (52) via a compression spring (54). A limiting hole (55) is provided near the bottom end of the pull rod (53) on the upper cover (2).

8. The switchable filter according to claim 7, characterized in that: The bottom end of the pull rod (53) slides on the inner wall of the limiting hole (55), and the limiting column (42) is provided with a slot (56) near the rotating plate (51), and the rotating plate (51) slides in a semi-arc shape on the inner wall of the slot (56).

Images