A fixing structure for a filter membrane of a filter

Abstract

The present invention discloses a fixing structure for a filter membrane of a filter, comprising a filter assembly, including a mounting tube, a seal, and a filter element, wherein the seal is arranged on the mounting tube, and the filter element is located on one side of the seal; and a fixing assembly, which is arranged on the mounting tube and includes a fixing element, a limiting element, a positioning element, an extruding element, and a driving element, wherein the fixing element is located on the surface of the mounting tube, the limiting element is arranged inside the fixing element, and the positioning element is arranged on the surface of the mounting tube. The beneficial effects of the present invention are as follows: the filter membrane body can be fixed by arranging the mounting tube, and the effect of facilitating disassembly can be achieved by arranging the fixing assembly, thereby solving the problem that the existing fixing structure of the filter membrane is basically fixed by bolts, and special tools need to be used for disassembly when replacing the filter membrane, resulting in an inconvenient operation process.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a fixing structure for a filter membrane of a filter. Background Art

[0002] A filter membrane is required inside the filter, and as a consumable, the filtering effect of the filter membrane will decrease after a period of use, and the filter membrane needs to be replaced. The existing filter membrane fixing structure is basically fixed by bolts. When replacing the filter membrane, special tools are required to disassemble it, and the operation process is inconvenient. For this reason, we propose a filter membrane fixing structure for the filter to solve the above problem. On the one hand, it not only facilitates the installation and disassembly process of the filter membrane, but also ensures the stability of the filter membrane during installation. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] The present invention is proposed in view of the above problems and / or problems existing in the existing fixing structure of the filter membrane used in the filter.

[0005] Therefore, the problem to be solved by the present invention is that the existing filter membrane fixing structure is basically fixed by bolts, and special tools need to be used to disassemble the filter membrane when replacing it, which makes the operation process inconvenient.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a fixing structure for a filter membrane of a filter, comprising: a filter assembly including a mounting tube, a seal, and a filter element, wherein the seal is arranged on the mounting tube, and the filter element is located on one side of the seal; and

[0007] A fixing assembly is arranged on the mounting tube, and includes a fixing part, a limiting part, a positioning part, an extrusion part and a driving part. The fixing part is located on the surface of the mounting tube, the limiting part is arranged in the fixing part, the positioning part is arranged on the surface of the mounting tube, the extrusion part is sleeved on the surface of the mounting tube, and the driving part is located on one side of the extrusion part.

[0008] As a preferred solution of the fixing structure of the filter membrane of the filter described in the present invention, the sealing member includes a mounting thread and a sealing ring, the mounting thread is arranged in the mounting tube, and the sealing ring is located in the mounting tube.

[0009] As a preferred solution of the fixing structure of the filter membrane for the filter of the present invention, the filter element includes a fixing frame and a filter membrane body, the fixing frame is arranged on one side of the sealing ring, and the filter membrane body is located in the fixing frame.

[0010] As a preferred solution of the fixing structure of the filter membrane of the filter according to the present invention, the fixing member includes a fixing sleeve, and the fixing sleeve is provided on the surface of the mounting tube and is located on one side of the fixing frame.

[0011] As a preferred solution of the fixing structure of the filter membrane for the filter described in the present invention, the fixing part further includes a limiting strip, the limiting strip is arranged on one side of the fixing sleeve, a first limiting groove is provided at the end of the mounting tube, a second limiting groove is provided on one side of the fixing frame, and the limiting strip is clamped in the first limiting groove and the second limiting groove.

[0012] As a preferred solution of the fixing structure of the filter membrane of the filter described in the present invention, the limiting member includes a first spring, a third limiting groove is provided in the fixing sleeve, and the end of the first spring is arranged on the inner wall of the third limiting groove.

[0013] As a preferred solution of the fixing structure of the filter membrane of the filter described in the present invention, the limiting member further includes a limiting block, which is located at the end of the first spring and is arranged on one side of the mounting tube.

[0014] As a preferred solution of the fixing structure of the filter membrane of the filter described in the present invention, the positioning member includes a spring piece and a positioning slide, the spring piece is arranged on one side of the mounting tube, and the positioning slide is located on the surface of the mounting tube.

[0015] As a preferred solution of the fixing structure of the filter membrane of the filter described in the present invention, the extrusion member includes an extrusion ring and an extrusion block, the extrusion ring is sleeved on the surface of the mounting tube, and the extrusion block is located on one side of the extrusion ring.

[0016] As a preferred solution of the fixing structure of the filter membrane for the filter described in the present invention, the driving member includes a driving ring and a driving handle, the driving ring is sleeved on the surface of the mounting tube, the driving handle is located on one side of the driving ring, and a fourth limiting groove is opened in the driving ring.

[0017] The beneficial effects of the present invention are: the filter membrane body can be fixed by setting the installation tube, and the fixing component can be set to facilitate disassembly, which solves the problem that the existing filter membrane fixing structure is basically fixed by bolts, and special tools are needed to disassemble when replacing the filter membrane, which makes the operation process inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0019] Figure 1 A structural diagram of a fixing structure for a filter membrane.

[0020] Figure 2 This is a structural diagram from another perspective of the fixing structure of the filter membrane used in the filter.

[0021] Figure 3 This is an exploded structural diagram of the fixing structure of the filter membrane used in the filter.

[0022] Figure 4 This is a diagram of the connection structure of a fixing sleeve, a limiting strip and a first spring for fixing the filter membrane of a filter.

[0023] Figure 5 This is a diagram of the connection structure of a fixing sleeve, a limiting strip and a limiting block for fixing the filter membrane of a filter.

[0024] Figure 6 This is a diagram of the connection structure of the drive ring and the drive handle of the fixing structure of the filter membrane of the filter. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0028] Example 1

[0029] Reference Figures 1 to 6, which is the first embodiment of the present invention, provides a fixing structure for a filter membrane of a filter. The fixing structure for a filter membrane of a filter includes a filter assembly 100, including a mounting tube 101, a seal 102, and a filter element 103. The seal 102 is arranged on the mounting tube 101, and the filter element 103 is located on one side of the seal 102.

[0030] The installation tube 101 is provided to fix the filter element 103 , the sealing element 102 is provided to seal the connection between the installation tube 101 and the filter element 103 , and the filter element 103 is provided to filter the fluid medium.

[0031] The fixing assembly 200 is arranged on the mounting tube 101, and includes a fixing part 201, a limiting part 202, a positioning part 203, an extrusion part 204 and a driving part 205. The fixing part 201 is located on the surface of the mounting tube 101, the limiting part 202 is arranged in the fixing part 201, the positioning part 203 is arranged on the surface of the mounting tube 101, the extrusion part 204 is sleeved on the surface of the mounting tube 101, and the driving part 205 is located on one side of the extrusion part 204.

[0032] The fixing member 201 is used to fix the filter element 103 so that the filter element 103 is fixed in the mounting tube 101. The limiting member 202 is used to limit the fixing member 201. The positioning member 203 is used to limit the extrusion member 204 and the driving member 205 at the same time. When the driving member 205 rotates, it can push the extrusion member 204 to extrude the limiting member 202.

[0033] Specifically, the sealing member 102 includes a mounting thread 102 a and a sealing ring 102 b . The mounting thread 102 a is disposed in the mounting tube 101 , and the sealing ring 102 b is located in the mounting tube 101 .

[0034] The mounting thread 102 a facilitates the use of the mounting tube 101 , and the sealing ring 102 b is used to seal the connection between the mounting tube 101 and the filter element 103 .

[0035] Specifically, the filter element 103 includes a fixing frame 103a and a filter membrane body 103b. The fixing frame 103a is arranged on one side of the sealing ring 102b, and the filter membrane body 103b is located in the fixing frame 103a.

[0036] The fixing frame 103a is used to fix the filter membrane body 103b. The fixing frame 103a is limited by clamping the installation tube 101 and the fixing member 201. The filter membrane body 103b is used to filter the fluid medium.

[0037] Specifically, the fixing member 201 includes a fixing sleeve 201 a , which is sleeved on the surface of the mounting tube 101 and located on one side of the fixing frame 103 a .

[0038] The fixing sleeve 201 a is slidably connected to the surface of the installation tube 101 , and limits the fixing frame 103 a so that the fixing frame 103 a is limited in the installation tube 101 .

[0039] Example 2

[0040] Reference Figures 1 to 5 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0041] Specifically, the fixing part 201 also includes a limiting strip 201b, which is arranged on one side of the fixing sleeve 201a. A first limiting groove V is opened at the end of the mounting tube 101, and a second limiting groove U is opened on one side of the fixing frame 103a. The limiting strip 201b is clamped in the first limiting groove V and the second limiting groove U.

[0042] The limiting strip 201b is engaged in the first limiting groove V and the second limiting groove U, so that the fixing frame 103a does not rotate in the installation tube 101, thereby allowing the filter membrane body 103b to work stably.

[0043] Specifically, the limiting member 202 includes a first spring 202a, a third limiting groove X is defined in the fixing sleeve 201a, and an end portion of the first spring 202a is disposed on an inner wall of the third limiting groove X.

[0044] There are two third limiting grooves X, which are symmetrically distributed in the fixing sleeve 201a. There are two first springs 202a, both of which are fixed to the inner wall of the third limiting groove X at their ends.

[0045] Specifically, the limiting member 202 further includes a limiting block 202 b . The limiting block 202 b is located at the end of the first spring 202 a and is disposed on one side of the mounting tube 101 .

[0046] There are two limiting blocks 202b. One side of the limiting block 202b is fixed to the end of the first spring 202a, and slides on the inner wall of the third limiting groove X and is engaged with one side of the mounting tube 101, thereby limiting the fixing sleeve 201a so that the fixing sleeve 201a is fixed to the surface of the mounting tube 101.

[0047] Example 3

[0048] Reference Figures 1 to 3 and Figure 6 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0049] Specifically, the positioning member 203 includes a spring piece 203 a and a positioning slide 203 b . The spring piece 203 a is disposed on one side of the mounting tube 101 , and the positioning slide 203 b is located on the surface of the mounting tube 101 .

[0050] There are multiple spring pieces 203 a , all of which have their ends fixed on one side of the mounting tube 101 . There are two positioning slides 203 b , both of which are circumferentially distributed on the surface of the mounting tube 101 .

[0051] Specifically, the extrusion member 204 includes an extrusion ring 204a and an extrusion block 204b. The extrusion ring 204a is sleeved on the surface of the mounting tube 101, and the extrusion block 204b is located on one side of the extrusion ring 204a.

[0052] One side of the extrusion ring 204a is fixed to the end of the spring piece 203a, and the extrusion block 204b is located on one side of the limiting block 202b. When the extrusion ring 204a moves toward the limiting block 202b, it drives the extrusion block 204b to squeeze the limiting block 202b, so that the limiting block 202b slides into the third limiting groove X, thereby releasing the limit on the fixing sleeve 201a.

[0053] Specifically, the driving member 205 includes a driving ring 205a and a driving handle 205b. The driving ring 205a is sleeved on the surface of the mounting tube 101, and the driving handle 205b is located on one side of the driving ring 205a. A fourth limiting groove Y is defined in the driving ring 205a.

[0054] Rotating the driving handle 205b can drive the driving ring 205a to rotate. When the driving ring 205a rotates, it drives the fourth limiting groove Y to slide on the surface of the positioning slide 203b, so that the driving ring 205a pushes the extrusion ring 204a to move toward the limiting block 202b.

[0055] When in use, when installing the filter membrane body 103b, first place the sealing ring 102b in the installation tube 101, then place the filter membrane body 103b on one side of the sealing ring 102b, align the first limiting groove V and the second limiting groove U, and put the fixing sleeve 201a on the surface of the installation tube 101, so that the limiting strip 201b is aligned with the first limiting groove V and the second limiting groove U, press the fixing sleeve 201a, and under the elastic force of the first spring 202a, the limiting block 202b is engaged with one side of the installation tube 101, thereby limiting the fixing sleeve 201a and fixing the fixing sleeve 201a on the surface of the installation tube 101. When the filter membrane body 103b needs to be disassembled, first rotate the driving handle 205b to drive the driving ring 205a to rotate When the driving ring 205a rotates, it drives the fourth limiting groove Y to slide on the surface of the positioning slide 203b, so that the driving ring 205a pushes the extrusion ring 204a to move toward the limiting block 202b. When the extrusion ring 204a moves toward the limiting block 202b, it drives the extrusion block 204b to squeeze the limiting block 202b, so that the limiting block 202b slides into the third limiting groove X, thereby releasing the limit on the fixing sleeve 201a, pulling the fixing sleeve 201a, and removing the fixing sleeve 201a from the surface of the mounting tube 101. At this time, the filter membrane body 103b can be removed for replacement, which solves the problem that the existing filter membrane fixing structure is basically fixed by bolts, and special tools need to be used for disassembly when replacing the filter membrane, which is inconvenient.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fixing structure for a filter membrane of a filter, characterized in that: include, A filter assembly (100) comprises a mounting tube (101), a sealing element (102), and a filter element (103), wherein the sealing element (102) is arranged on the mounting tube (101), and the filter element (103) is located on one side of the sealing element (102); as well as A fixing assembly (200) is arranged on the mounting tube (101), comprising a fixing member (201), a limiting member (202), a positioning member (203), an extrusion member (204) and a driving member (205), wherein the fixing member (201) is located on the surface of the mounting tube (101), the limiting member (202) is arranged in the fixing member (201), the positioning member (203) is arranged on the surface of the mounting tube (101), the extrusion member (204) is sleeved on the surface of the mounting tube (101), and the driving member (205) is located on one side of the extrusion member (204); The sealing member (102) comprises a mounting thread (102a) and a sealing ring (102b), wherein the mounting thread (102a) is arranged in the mounting tube (101), and the sealing ring (102b) is located in the mounting tube (101); The filter element (103) comprises a fixing frame (103a) and a filter membrane body (103b), wherein the fixing frame (103a) is arranged on one side of the sealing ring (102b), and the filter membrane body (103b) is located inside the fixing frame (103a); The fixing member (201) comprises a fixing sleeve (201a), the fixing sleeve (201a) being sleeved on the surface of the mounting tube (101) and located on one side of the fixing frame (103a); The fixing member (201) further comprises a limiting strip (201b), the limiting strip (201b) being arranged on one side of the fixing sleeve (201a), a first limiting groove (V) being provided at the end of the mounting tube (101), a second limiting groove (U) being provided at one side of the fixing frame (103a), and the limiting strip (201b) being clamped in the first limiting groove (V) and the second limiting groove (U); The extrusion piece (204) comprises an extrusion ring (204a) and an extrusion block (204b); the extrusion ring (204a) is sleeved on the surface of the mounting tube (101); and the extrusion block (204b) is located on one side of the extrusion ring (204a).

2. The fixing structure for the filter membrane of the filter according to claim 1, characterized in that: The limiting member (202) comprises a first spring (202a), a third limiting groove (X) is provided in the fixing sleeve (201a), and an end portion of the first spring (202a) is arranged on an inner wall of the third limiting groove (X).

3. The fixing structure for the filter membrane of the filter according to claim 2, characterized in that: The limiting member (202) further comprises a limiting block (202b), wherein the limiting block (202b) is located at the end of the first spring (202a) and is arranged on one side of the mounting tube (101).

4. The fixing structure for the filter membrane of the filter according to claim 3, characterized in that: The positioning member (203) comprises a spring piece (203a) and a positioning slide (203b), wherein the spring piece (203a) is arranged on one side of the mounting tube (101), and the positioning slide (203b) is located on the surface of the mounting tube (101).

5. The fixing structure for the filter membrane of a filter according to claim 2, characterized in that: The driving member (205) comprises a driving ring (205a) and a driving handle (205b), wherein the driving ring (205a) is sleeved on the surface of the mounting tube (101), and the driving handle (205b) is located on one side of the driving ring (205a), and a fourth limiting groove (Y) is provided in the driving ring (205a).

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