Folding filter element

Abstract

The utility model relates to the technical field of filter elements, in particular to a folding filter element, which is characterized in that a first filter cartridge and a second filter cartridge are arranged on a lower fixing plate, a filter membrane is arranged between the first filter cartridge and the second filter cartridge, an upper fixing plate is arranged on the lower fixing plate through a fixing device and is in contact with the first filter cartridge and the second filter cartridge, and a water inlet is arranged on the upper fixing plate. The threaded cover penetrates through the lower fixing plate in a threaded mode, the threaded rod penetrates through the threaded cover in a threaded mode and extends into the first filter cylinder, the driving block is installed on the threaded rod through a connecting assembly, the driving block is provided with a brush, and the threaded rod drives the driving block to rotate and move downwards through threaded fit of the threaded cover and connection fit of the connecting assembly. Meanwhile, the brush can clean impurities on the inner wall of the first filter cylinder, so that the cleaning effect on the impurities in the first filter cylinder is realized, and the influence on the filtering efficiency of the filter membrane due to accumulation of the impurities is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a folded filter element. Background Art

[0002] The folded filter element has the advantages of low pressure difference, high flux, good filtration accuracy and low economic cost, and is widely used in the food and beverage processing, pharmaceutical production, and gas treatment industries.

[0003] The existing patent CN 208626793 U folded filter element is convenient to use. The positioning hoop is polygonal. The two ends of the filter membrane are respectively connected with symmetric positioning hoops, which can increase the filtration area. First, the filter membrane filters, and then the filter element main body filters. Double filtration has a better filtration effect. The filter element main body is a corrugated stainless steel filter element main body, which has a good filtration effect and can protect the inner filter membrane. The filter membrane is a one-way membrane. Even if the folded filter element is placed in a liquid, the liquid will not flow back into the folded filter element.

[0004] However, in the process of using the folded filter element of the existing patent, the waste liquid first enters the filter membrane after passing through the water inlet and the water inlet pipe, and the impurities in the waste liquid will also accumulate in the filter membrane. And this device is not convenient for treating the impurities in the filter membrane, resulting in the accumulated impurities affecting the flow rate of the waste liquid, and further affecting the filtration efficiency of the filter membrane. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a folded filter element, which solves the problem that in the aforementioned device, the waste liquid first enters the filter membrane after passing through the water inlet and the water inlet pipe, and the impurities in the waste liquid will also accumulate in the filter membrane. And this device is not convenient for treating the impurities in the filter membrane, resulting in the accumulated impurities affecting the flow rate of the waste liquid, and further affecting the filtration efficiency of the filter membrane.

[0006] To achieve the above purpose, the utility model provides a folded filter element, which includes an upper fixing plate, a lower fixing plate and a fixing device. The lower fixing plate is provided with a first filter cylinder and a second filter cylinder. A filter membrane is arranged between the first filter cylinder and the second filter cylinder. The upper fixing plate is installed on the lower fixing plate through the fixing device and is in contact with the first filter cylinder and the second filter cylinder. At the same time, a water inlet is arranged on the upper fixing plate. The folded filter element further includes an impurity removing device. The impurity removing device includes a driving block, a screw rod, a threaded cover and a connecting component. The threaded cover is threadedly penetrated through the lower fixing plate. The screw rod is threadedly penetrated through the threaded cover and extends into the first filter cylinder. The driving block is installed on the screw rod through the connecting component. A brush is arranged on the driving block.

[0007] Among them, the connection component includes a connecting rod and a connecting plate. The connecting rod is fixedly installed on the driving block; the connecting plate is fixedly installed on the connecting rod and is fixedly connected to the screw rod.

[0008] Among them, a through hole is further provided on the driving block, and the through hole penetrates the driving block.

[0009] Among them, a rotating block is further provided on the screw rod. The rotating block is fixedly installed on the screw rod and is located at one end of the screw rod away from the connecting plate.

[0010] Among them, the fixing device includes a fixing rod and a nut. The fixing rod is fixedly installed on the lower fixing plate, and at the same time, the fixing rod penetrates the upper fixing plate; the nut is threadedly connected to one end of the fixing rod close to the upper fixing plate.

[0011] For a folding filter element of the present utility model, during use, wastewater is injected into the first filter cylinder through the water inlet. After passing through the first filter cylinder, the wastewater enters the filter membrane. Through the filtration of the filter membrane, the wastewater flows out after passing through the second filter cylinder. When it is necessary to clean the impurities in the first filter cylinder, rotate the rotating block to drive the screw rod to rotate. The screw rod moves downward along the first filter cylinder through the threaded cooperation with the spiral cover. The rotation and movement of the screw rod, through the connection and cooperation of the connecting rod and the connecting plate, cause the driving block to move downward and rotate at the same time. At this time, the brush on the driving block brushes off the impurities on the inner wall of the first filter cylinder, and the impurities then enter the threaded cover. When the driving block moves to the bottom of the first filter cylinder, rotate the threaded cover in the reverse direction to separate the threaded cover from the lower fixing plate, and then the impurities in the threaded cover can be cleaned out, thus achieving the cleaning effect of the impurities in the first filter cylinder and avoiding the influence of the filtration efficiency of the filter membrane due to the accumulation of impurities. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of a folding filter element according to the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the impurity removal device according to the first embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the overall structure of a folding filter element according to the second embodiment of the present utility model.

[0016] In the figure: 101 - upper fixing plate, 102 - lower fixing plate, 103 - first filter cartridge, 104 - second filter cartridge, 105 - filter membrane, 106 - water inlet, 107 - driving block, 108 - screw rod, 109 - threaded cap, 110 - brush, 111 - connecting rod, 112 - connecting plate, 113 - through hole, 114 - rotating block, 201 - fixing rod, 202 - nut. Detailed implementation manners

[0017] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0018] The first embodiment of the present application is as follows:

[0019] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic diagram of the overall structure of a folded filter element according to the first embodiment of the present utility model, Figure 2 and which is a schematic diagram of the structure of the impurity removal device according to the first embodiment of the present utility model.

[0020] The present utility model provides a folded filter element: including an upper fixing plate 101, a lower fixing plate 102 and a fixing device, and further including an impurity removal device. The impurity removal device includes a driving block 107, a screw rod 108, a threaded cap 109 and a connecting component. The connecting component includes a connecting rod 111 and a connecting plate 112. A through hole 113 is further provided on the driving block 107, and a rotating block 114 is further provided on the screw rod 108. Through the foregoing solution, the problem in the foregoing device that the waste liquid first enters the filter membrane after passing through the water inlet and the water inlet pipe, and the impurities in the waste liquid will also accumulate in the filter membrane, and the device is not convenient for treating the impurities in the filter membrane, resulting in the accumulated impurities affecting the flow rate of the waste liquid and further affecting the filtering efficiency of the filter membrane is solved. It can be understood that this solution can also be used to solve the problem of fixing the upper fixing plate.

[0021] In this embodiment, driven by the screw rod 108, the driving block 107 drives the brush 110 to clean the impurities on the inner wall of the first filter cartridge 103, thereby achieving the cleaning effect of the impurities in the first filter cartridge 103 and avoiding the influence of the accumulated impurities on the filtering efficiency of the filter membrane 105.

[0022] Among them, the threaded cap 109 is threaded through the lower fixed plate 102, the screw rod 108 is threaded through the threaded cap 109 and extends into the first filter cartridge 103. The driving block 107 is installed on the screw rod 108 through the connecting assembly. A brush 110 is provided on the driving block 107. The first filter cartridge 103 is located inside the second filter cartridge 104. Multiple groups of filter holes are provided on both the first filter cartridge 103 and the second filter cartridge 104, and both are cylindrical structures. The filter membrane 105 is a polypropylene filter membrane 105, and the filter membrane 105 is also polygonal. The driving block 107 is in a disc-shaped structure, and multiple groups of the brushes 110 are embedded on its outer periphery. The inside of the threaded cap 109 is provided with a threaded hole, and its outside is provided with threads with reverse helix directions. The threaded cap 109 is a cap structure with an upward opening. During use, the screw rod 108 is rotated. The screw rod 108 drives the driving block 107 to rotate and move downward through the threaded fit with the threaded cap 109 and the connection fit through the connecting assembly. At the same time, the brush 110 can clean the impurities on the inner wall of the first filter cartridge 103, thereby achieving the cleaning effect of the impurities in the first filter cartridge 103 and avoiding the influence of the filter efficiency of the filter membrane 105 due to the accumulation of impurities.

[0023] Secondly, the connecting rod 111 is fixedly installed on the driving block 107; the connecting plate 112 is fixedly installed on the connecting rod 111 and is fixedly connected to the screw rod 108. The number of the connecting rods 111 is three groups, and they are annularly distributed between the driving block 107 and the connecting plate 112. The connecting plate 112 is in a disc-shaped structure. Through the cooperation of the connecting rod 111 and the connecting plate 112, the connection effect between the driving block 107 and the screw rod 108 is achieved.

[0024] Thirdly, the through hole 113 penetrates through the driving block 107, and the aperture of the through hole 113 is the same as the aperture of the water inlet 106. Through the setting of the through hole 113, it is convenient for the waste water to flow.

[0025] Finally, the rotating block 114 is fixedly installed on the screw rod 108 and is located at one end of the screw rod 108 away from the connecting plate 112. The rotating block 114 is polygonal. Through the setting of the rotating block 114, it is more convenient to rotate the screw rod 108.

[0026] In this embodiment, when in use, wastewater is injected into the first filter cartridge 103 through the water inlet 106. After passing through the first filter cartridge 103, the wastewater enters the filter membrane 105. Through the filtration of the filter membrane 105, the wastewater flows out after passing through the second filter cartridge 104. When it is necessary to clean the impurities in the first filter cartridge 103, rotate the rotating block 114 to drive the screw 108 to rotate. The screw 108 moves downward along the first filter cartridge 103 through the threaded cooperation with the screw cap. The rotation and movement of the screw 108, through the connection and cooperation of the connecting rod 111 and the connecting plate 112, cause the driving block 107 to move downward and rotate simultaneously. At this time, the brush 110 on the driving block 107 brushes off the impurities on the inner wall of the first filter cartridge 103, and the impurities then enter the threaded cap 109. When the driving block 107 moves to the bottom of the first filter cartridge 103, reverse-rotate the threaded cap 109 to separate the threaded cap 109 from the lower fixing plate 102, and then the impurities in the threaded cap 109 can be cleaned out, thus achieving the cleaning effect of the impurities in the first filter cartridge 103 and avoiding the influence of the filtration efficiency of the filter membrane 105 due to the accumulation of impurities.

[0027] The second embodiment of this application is as follows:

[0028] Please refer to Figure 3 , in which Figure 3 is the overall structural schematic diagram of a folded filter element according to the second embodiment of the present utility model. On the basis of the first embodiment, the folded filter element of this embodiment further includes a fixing device, and the fixing device includes a fixing rod 201 and a nut 202.

[0029] In this embodiment, through the cooperation of the fixing rod 201 and the nut 202, the fixing effect on the upper fixing plate 101 is achieved.

[0030] Among them, the fixing rod 201 is fixedly installed on the lower fixing plate 102, and at the same time, the fixing rod 201 penetrates through the upper fixing plate 101; the nut 202 is threadedly connected to one end of the fixing rod 201 close to the upper fixing plate 101. The number of the fixing rods 201 is four groups and is annularly distributed on the lower fixing plate 102. The upper end of the fixing rod 201 is slightly thinner than the lower end in diameter, and the upper end of the fixing rod 201 is provided with threads. The upper fixing plate 101 is stuck at the diameter change of the fixing rod 201. When in use, the upper fixing plate 101 is stuck on the fixing rod 201, and then the four groups of nuts 202 are tightened respectively, and the upper fixing plate 101 can be fixed on the lower fixing plate 102. When disassembling, loosen the nuts 202, thus achieving the fixing effect on the upper fixing plate 101.

[0031] In this embodiment, during use, the upper fixing plate 101 is clamped on the fixing rod 201, and then the four groups of nuts 202 are tightened respectively, so that the upper fixing plate 101 can be fixed on the lower fixing plate 102. When disassembling, just loosen the nuts 202, thus achieving the fixing effect of the upper fixing plate 101.

[0032] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A folded filter element, comprising an upper fixing plate, a lower fixing plate and a fixing device, wherein the lower fixing plate is provided with a first filter cartridge and a second filter cartridge, a filter membrane is provided between the first filter cartridge and the second filter cartridge, the upper fixing plate is mounted on the lower fixing plate through the fixing device and contacts the first filter cartridge and the second filter cartridge, and a water inlet is provided on the upper fixing plate, characterized in that: Also includes a debris removal device; The impurity removal device includes a driving block, a screw, a threaded cover and a connecting assembly. The thread of the threaded cover passes through the lower fixed plate, the thread of the screw passes through the threaded cover and extends into the first filter cartridge. The driving block is installed on the screw through the connecting assembly, and a brush is provided on the driving block.

2. The pleated filter element according to claim 1, characterized in that: The connecting assembly includes a connecting rod and a connecting plate. The connecting rod is fixedly mounted on the driving block. The connecting plate is fixedly mounted on the connecting rod and is fixedly connected to the screw rod.

3. The pleated filter element according to claim 1, characterized in that: The driving block is also provided with a through hole, and the through hole passes through the driving block.

4. The pleated filter element according to claim 2, characterized in that: The screw rod is also provided with a rotating block, which is fixedly mounted on the screw rod and located at an end of the screw rod away from the connecting plate.

5. The pleated filter element according to claim 1, characterized in that: The fixing device comprises a fixing rod and a nut. The fixing rod is fixedly mounted on the lower fixing plate and penetrates the upper fixing plate. The nut is threadedly connected to one end of the fixing rod close to the upper fixing plate.

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