Filter membrane structure of an ultrafiltration device

Abstract

The utility model relates to a filter membrane structure of ultrafiltration equipment belongs to the technical field of ultrafiltration equipment, it includes: casing and the filter core structure of setting in the casing, the upper locating piece and lower locating piece are located oppositely in the casing, the filter core structure includes connecting upper end, filter membrane and connecting lower end, and connecting upper end and connecting lower end are arranged at the upper and lower ends of filter membrane respectively, and connecting upper end is jointed on the upper locating piece, and connecting lower end is jointed on the lower locating piece. The filter membrane structure adopts the joint mode in the filter membrane installation process, and just needs to open one end of the casing to realize the installation and dismounting of filter membrane, simplifies the installation mode, and it is convenient operation, saves the trouble and saves the strength.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration equipment technology, and specifically to a filter membrane structure for an ultrafiltration equipment. Background Technology

[0002] Currently, the main installation method for ultrafiltration membranes is a two-end installation structure, primarily for ultrafiltration equipment where the inlet and outlet are located at opposite ends. The installation process involves fixing the membrane end to the housing with bolts. However, this requires opening both ends of the housing, causing inconvenience during replacement, especially when the operating space is limited after the housing is installed, making membrane removal even more difficult.

[0003] Therefore, it is necessary to design a filter membrane structure for ultrafiltration equipment to overcome the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a filter membrane structure for an ultrafiltration device. The filter membrane is installed using a snap-fit ​​method, which allows for installation and removal of the filter membrane simply by opening one end of the housing. This simplifies the installation process, makes the operation convenient, and saves time and effort.

[0005] The present invention provides a filter membrane structure for an ultrafiltration device, comprising: a housing and a filter element structure disposed within the housing. An upper positioning member and a lower positioning member are disposed opposite each other within the housing. The filter element structure includes an upper connecting end, a filter membrane, and a lower connecting end. The upper connecting end and the lower connecting end are respectively disposed at the upper and lower ends of the filter membrane. The upper connecting end is engaged with the upper positioning member, and the lower connecting end is engaged with the lower positioning member.

[0006] Preferably, the lower positioning member includes a mounting part and a locking part. The mounting part, which is disposed in the housing, is used to support and place the lower end head, and the locking part is used to lock the lower end head onto the mounting part.

[0007] Preferably, the mounting part includes a mounting ring and a limiting ring disposed on the mounting ring. The mounting ring is mounted on the outer wall of the lower connecting end, and the limiting ring supports and abuts against the bottom of the lower connecting end. The mounting ring or the limiting ring is fixed to the inner wall of the housing. The locking part includes a bottom ring and an L-shaped limiting member. The bottom ring is rotatably mounted on the bottom of the mounting part. One end of the L-shaped limiting member extends downward through the mounting ring and is fixed on the bottom ring. The outer wall of the lower connecting end is provided with a positioning protrusion. The positioning protrusion is provided with a locking groove for the other end of the horizontally positioned L-shaped limiting member to be inserted.

[0008] Preferably, the inner wall of the housing is provided with a slide rail for the positioning protrusion to slide up and down.

[0009] Preferably, the bottom ring is connected to a drive shaft extending in the vertical direction via a connecting rib. The drive shaft is located in the center of the filter membrane. Both the upper and lower ends of the connection are provided with through holes to allow the upper and lower ends of the drive shaft to pass through respectively. The lower end of the drive shaft is engaged with the connecting rib.

[0010] Preferably, the upper end of the drive shaft is detachably mounted on the connecting upper end via an actuator.

[0011] Preferably, the actuator includes a handle and an insert, the insert being snapped onto the top of the drive shaft, and the handle being fixed to the insert and detachably mounted on the upper end of the connector.

[0012] Preferably, the upper positioning member includes a detachably connected lower connecting part and a sealing ring, which are detachably disposed on the upper connecting end.

[0013] Preferably, the upper positioning element is detachably installed inside the housing.

[0014] Preferably, the housing includes an end shell, a disassembly shell, and a main body shell, with both the upper and lower ends of the main body shell connected to the end shell via the disassembly shell.

[0015] The present invention has the following advantages and beneficial effects: the filter membrane structure adopts a snap-fit ​​method during the filter membrane installation process, and the filter membrane can be installed and disassembled simply by opening one end of the housing, which simplifies the installation method, facilitates operation, and saves time and effort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the filter membrane structure of an ultrafiltration device according to a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the filter membrane according to a preferred embodiment of the present invention; Figure 3 for Figure 2 Enlarged diagram of A in the middle; Figure 4 This is a schematic diagram of the internal structure of the filter membrane according to a preferred embodiment of the present invention; Figure 5 for Figure 4 Enlarged diagram of B in the middle; Figure 6 for Figure 4 Enlarged diagram of C in the middle; Explanation of icon numbers: 1. Housing; 10. End housing; 11. Disassembly housing; 12. Main housing; 13. Slide rail; 2. Lower connecting end; 20. Positioning protrusion; 3. Filter membrane; 4. Upper connecting end; 5. Lower positioning component; 50. Mounting part; 500. Mounting ring; 501. Limiting ring; 51. Locking part; 510. Bottom ring; 511. L-shaped limiting component; 512. Connecting rib; 6. Upper positioning component; 60. Lower connecting part; 61. Sealing ring; 7. Drive shaft; 8. Actuator; 80. Handle disc; 81. Insertion component. Detailed Implementation

[0017] To better understand this utility model, the following embodiments are further illustrations of this utility model, but the content of this utility model is not limited to the following embodiments.

[0018] like Figures 1 to 6 As shown, an ultrafiltration device has a filter membrane 3 structure, including a housing 1 and a filter element structure disposed therein, wherein the filter element structure is composed of a lower end 2, a filter membrane 3, and an upper end 4 connecting the filter membrane 3.

[0019] Based on the housing 1 and the filter element structure, in order to facilitate the installation of the filter element structure from one side, the filter element structure and its installation structure have been improved as follows: The housing 1 is provided with a lower positioning member 5 and an upper positioning member 6, the lower end 2 is snapped onto the lower positioning member 5, and the upper end 4 is snapped onto the upper positioning member 6.

[0020] The lower positioning member 5 consists of a mounting part 50 and a locking part 51. The mounting part 50 is used to support and place the lower end 2, and the locking part 51 is used to lock the filter membrane 3 placed on the mounting part 50 to the lower end 2.

[0021] Reference Figures 2 to 5 The mounting part 50 consists of a mounting ring 500 fixed to the inner wall of the housing 1 and a limiting ring 501 disposed thereon. The connecting lower end 2 has a disc-shaped structure, and the outer diameter of the connecting lower end 2 is larger than the inner diameter of the limiting ring 501. The bottom of the connecting lower end 2 is placed on the limiting ring 501, and its periphery is limited by the mounting ring 500.

[0022] When the filter element structure is placed into the housing 1, it is placed from top to bottom. That is, the lower end 2 slides down from the top of the housing 1 first, further ensuring that it falls stably on the top of the limiting ring 501, and that its circumference is limited by the mounting part 50. To ensure that the lower end 2 falls stably and accurately on the top of the limiting ring 501 and that its circumference is limited by the mounting ring 500, a positioning protrusion 20 is provided on the outer wall of the lower end 2, protruding from the outer wall of the lower end 2. The height of the lower end 2 is greater than the height of the mounting ring 500, and the protruding part is the thickness of the positioning protrusion 20. A slide rail 13 is provided on the inner wall of the housing 1, and the positioning protrusion 20 is slidably mounted on the slide rail 13. The positioning protrusion 20 is provided with a groove corresponding to the slide rail 13. When the lower end 2 slides down along the inner wall of the housing 1, the slide groove slides along the length of the slide rail 13 to ensure that the lower end 2 moves down accurately, while avoiding deflection of the lower end 2 during its downward movement, which would prevent the lower positioning part 5 from being properly aligned.

[0023] After the lower connector 2 is accurately placed on the mounting part 50, the lower connector 2 is then locked by the locking part 51 to prevent it from moving upward along the slide rail 13. The locking part 51 consists of a bottom ring 510 and an L-shaped limiting member 511 thereon. The structure of the bottom ring 510 and the L-shaped limiting member 511 is configured as follows: Reference Figure 5 The bottom ring 510 has a ring-shaped structure, rotates at the bottom of the mounting part 50, and fits against the bottom of the mounting part 50. At the same time, it rotates at the bottom of the mounting part 50 through irregular protrusions such as T-shapes to prevent the bottom ring 510 from detaching from the mounting part 50.

[0024] Meanwhile, the L-shaped limiting member 511 consists of a vertical end and a horizontal end, with the bottom of the vertical end fixed to the top of the bottom ring 510 and rotating with the bottom ring 510. The mounting part 50 is provided with an arc-shaped sliding opening for the rotation of the vertical end, so the vertical end of the L-shaped limiting member 511 passes through the mounting part 50. In addition, the positioning protrusion 20 is provided with a locking groove corresponding to the horizontal end of the L-shaped limiting member 511. As the bottom ring 510 rotates, the horizontal end of the L-shaped limiting member 511 is inserted into the locking groove, so the positioning protrusion 20 is limited in the vertical direction by the horizontal end of the L-shaped limiting member 511. At this time, the bottom of the connecting lower end 2 is limited by the limiting ring 501, the periphery of the connecting lower end 2 is limited by the mounting ring 500, and the top of the connecting lower end 2 is limited by the horizontal end of the L-shaped limiting member 511, so that the connecting lower end 2 is locked on the lower positioning member 5.

[0025] Reference Figure 4 and 6The upper positioning member 6 is composed of a lower connecting part 60 and a sealing ring 61, which are connected by assembly. The lower connecting part 60 and the sealing ring 61 form a C-shaped positioning structure. The shape of the lower connecting part 60 is similar to that of the mounting part 50. The bottom and periphery of the upper end 4 are limited by the lower connecting part 60. The top of the upper end 4 is limited by the sealing ring 61, thus positioning the upper end 4 within the C-shaped positioning structure of the upper positioning member 6.

[0026] To ensure the stability of the upper positioning component 6 and the upper connecting end 4, the upper positioning component 6 and the upper connecting end 4 can be locked with locking bolts. The locking bolts pass through the sealing ring 61, the upper connecting end 4, and the lower connecting part 60 in sequence. The upper positioning component 6 can also be installed on the inner wall of the housing 1 by threads or bolts. The above disassembly method facilitates the disassembly of the upper positioning component 6. In use, the upper positioning component 6 is removed first, and then the lower connecting end 2 is installed. That is, the lower connecting end 2 slides along the slide rail 13 to the mounting part 50 under the action of gravity, and then the upper positioning component 6 and the upper connecting end 4 are installed. Finally, the lower connecting end 2 is positioned by the locking part 51.

[0027] The outer diameter of the upper end 4 is larger than the outer diameter of the lower end 2 of the filter membrane 3, and the outer diameter of the lower end 2 is smaller than the inner diameter of the upper positioning member 6, so that it can pass through the center of the lower connecting part 60 and facilitate the movement of the lower connecting part 60 between the upper end 4 and the lower end 2.

[0028] There are also other implementation methods where the outer diameter of the upper end 4 is less than or equal to the outer diameter of the lower end 2. In this case, the upper positioning member 6 does not adopt the structure of the lower connecting part 60 and the sealing ring 61, but adopts the structure of the left and right half rings. When the two half rings are joined together, they are fixed by bolts. This makes it easy to position the upper positioning member 6 on the outer wall of the upper end 4, and then install the upper positioning member 6 on the inner wall of the housing 1. Finally, the lower end 2 is positioned by the locking part 51.

[0029] Reference Figure 5 Based on the structure of connecting the upper end head 4 and the upper positioning part 6, the center of the bottom ring 510 is connected to the drive shaft 7 through the connecting rib 512. The center of the connecting lower end head 2 and the connecting upper end head 4 is provided with through holes corresponding to the drive shaft 7. During installation, the drive shaft 7 passes through the connecting lower end head 2 and the connecting upper end head 4 in sequence, and the top of the drive shaft 7 is flush with the connecting upper end head 4; the bottom ring 510 is rotated by driving the drive shaft 7.

[0030] The upper connector 4 is equipped with an actuator 8, which consists of a handle disc 80 and an insert 81. The insert 81 is inserted into the top of the drive shaft 7, and the drive shaft 7 rotates with the insert 81. The insert 81 has a rod-shaped or block-shaped structure and is not cylindrical, causing the insert 81 to drive the drive shaft 7 to rotate. The handle disc 80 is fixed to the top of the upper connector 4 by multiple positioning bolts. After the horizontal end of the L-shaped limit member 511 is positioned against the lower connector 2, the positioning bolts fix the handle disc 80 and the upper connector 4, ensuring that the horizontal end of the L-shaped limit member 511 is locked against the lower connector 2.

[0031] Reference Figure 1 The housing 1 consists of an end shell 10, a disassembly shell 11, and a main body shell 12. The end shell 10 or the disassembly shell 11 can be removed, and the lower end 2, the filter membrane 3, and the upper end 4 can be placed sequentially from top to bottom.

[0032] During the installation of the filter membrane 3, a snap-fit ​​method is adopted. When snapping the bottom, it is not necessary to open the bottom end shell 10. The drive shaft 7 is rotated by the actuator 8 to complete the snap-fit ​​positioning of the lower end. The above operation can be completed by opening the top end shell 10. That is, only one end shell 10 needs to be opened to realize the installation and removal of the filter membrane 3, making installation and replacement faster and more convenient.

[0033] The above description is merely a preferred embodiment of the present utility model, and should not be construed as limiting the scope of the present utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present utility model, and these improvements and modifications are also considered to be within the scope of protection of the present utility model.

Claims

1. A filter membrane structure for an ultrafiltration device, characterized in that, include: The housing and the filter element structure disposed within the housing are provided with an upper positioning member and a lower positioning member arranged opposite each other inside the housing. The filter element structure includes an upper connecting end, a filter membrane and a lower connecting end. The upper connecting end and the lower connecting end are respectively disposed at the upper and lower ends of the filter membrane. The upper connecting end is snapped onto the upper positioning member and the lower connecting end is snapped onto the lower positioning member.

2. The filter membrane structure of the ultrafiltration device as described in claim 1, characterized in that: The lower positioning member includes a mounting part and a locking part. The mounting part, which is located inside the housing, is used to support and place the lower end head, and the locking part is used to lock the lower end head onto the mounting part.

3. The filter membrane structure of the ultrafiltration device as described in claim 2, characterized in that: The mounting part includes a mounting ring and a limiting ring disposed on the mounting ring. The mounting ring is mounted on the outer wall of the lower end of the connection, and the limiting ring supports and abuts against the bottom of the lower end of the connection. The mounting ring or the limiting ring is fixed to the inner wall of the housing. The locking part includes a bottom ring and an L-shaped limiting member. The bottom ring is rotatably mounted on the bottom of the mounting part. One end of the L-shaped limiting member extends downward through the mounting ring and is fixed on the bottom ring. The outer wall of the lower end of the connection is provided with a positioning protrusion. The positioning protrusion is provided with a locking groove that allows the other end of the horizontally positioned L-shaped limiting member to be inserted.

4. The filter membrane structure of the ultrafiltration device as described in claim 3, characterized in that: The inner wall of the housing is provided with a slide rail that allows the positioning protrusion to slide up and down.

5. The filter membrane structure of the ultrafiltration device as described in claim 3, characterized in that: The bottom ring is connected to a drive shaft extending vertically via a connecting rib. The drive shaft is located in the center of the filter membrane. Both the upper and lower ends of the connection are provided with through holes to allow the upper and lower ends of the drive shaft to pass through. The lower end of the drive shaft is engaged with the connecting rib.

6. The filter membrane structure of the ultrafiltration device as described in claim 5, characterized in that: The upper end of the drive shaft is detachably mounted on the connecting upper end head via an actuator.

7. The filter membrane structure of the ultrafiltration device as described in claim 6, characterized in that: The actuator includes a handle and an insert. The insert is snapped onto the top of the drive shaft, and the handle is fixed to the insert and detachably mounted on the upper end of the connector.

8. The filter membrane structure of the ultrafiltration device as described in claim 1, characterized in that: The upper positioning component includes a detachably connected lower connecting part and a sealing ring, which are detachably mounted on the upper end of the connection.

9. The filter membrane structure of the ultrafiltration device as described in claim 1, characterized in that: The upper positioning component is detachably installed inside the housing.

10. The filter membrane structure of the ultrafiltration device as described in claim 1, characterized in that: The housing includes an end shell, a disassembly shell, and a main body shell. Both the upper and lower ends of the main body shell are connected to the end shells through the disassembly shells.

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