Folding membrane filter

Abstract

The utility model relates to the technical field of folding membrane filters, and discloses a folding membrane filter, which comprises a main body assembly, a shell, a base, a folding membrane, a sealing ring and a bottom plate, the base is arranged below the shell, a mounting groove is formed in the base, the folding membrane is positioned in the mounting groove, the sealing ring is arranged on the base, and the bottom plate is arranged on the base. The bottom plate is fixed at the bottom of the shell; the fixing assembly is arranged on the base and comprises a fixing piece. The beneficial effects of the utility model are that through the arrangement of the fixing assembly, when the bottom plate and the housing are locked, an additional acting force can be provided, so that the housing is further close to the bottom plate, thereby improving the sealing performance, and when the sealing performance of the sealing ring is reduced, the fixing assembly can further adjust the fitting degree between the bottom plate and the housing, thereby improving the sealing performance. Therefore, the sealing ring of the filter does not need to be replaced frequently, and the service life of the sealing ring is prolonged to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of folding membrane filter, especially a folding membrane filter. BACKGROUND

[0002] The folding membrane filter is mainly composed of a filter core, a filter shell, a bottom plate, a sealing ring and other components, utilizes the microporous structure of the folding membrane, and when fluid passes through the filter core, solid particles, impurities, microorganisms and the like in the fluid are intercepted on the surface or inside the membrane, and the fluid meeting the requirements is allowed to pass through the membrane, so that the filtration and purification of the fluid are realized. During installation of the folding membrane filter, the filter core is usually first installed on the bottom plate, then the sealing ring is placed on the bottom plate, subsequently the filter shell is placed above the bottom plate, and finally the shell and the bottom plate are locked by using a clamp. During installation, only the clamp is used for locking, and there is no additional force to make the bottom plate and the shell fit more closely, which results in that the sealing property is difficult to be fully guaranteed. Once the sealing property of the sealing ring is reduced due to long-time use, wear or aging, a new sealing ring has to be selected to maintain the sealing effect. SUMMARY

[0003] In view of the above and / or existing problems in the folding membrane filter, the utility model is provided.

[0004] Therefore, the problem to be solved by the utility model is that the folding membrane filter is only installed by using the clamp, lacks the force to make the bottom plate and the shell fit closely, and the sealing property is difficult to be guaranteed.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a folding membrane filter, comprising a main assembly, including a shell, a base, a folding membrane, a sealing ring and a bottom plate, the base is arranged below the shell, the base is provided with an installation groove, the folding membrane is located in the installation groove, the sealing ring is arranged on the base, and the bottom plate is fixed to the bottom of the shell.

[0006] A fixing assembly is arranged on the base and comprises a fixing member, the fixing member comprises a fixing ring, a rotating ring, a sliding block, an arc-shaped side plate, an arc-shaped upper plate and an arc-shaped block, the fixing ring is fixed to the base, the rotating ring is in bearing connection with the fixing ring, the fixing ring is provided with a sliding groove, the sliding block slides in the sliding groove, the arc-shaped side plate is fixed to the sliding block, the arc-shaped upper plate is fixed with the arc-shaped side plate, and the arc-shaped block is fixed to the rotating ring.

[0007] As a preferred scheme of the folding membrane filter, the rotating ring is provided with a rotating groove, and the sliding block can slide in the rotating groove.

[0008] As a preferred scheme of the folding membrane filter, the arc-shaped upper plate is fixed with an extrusion block on the bottom, and the extrusion block is fixed on the arc-shaped side plate.

[0009] As a preferred scheme of the folding membrane filter, a chamfer is formed on the bottom plate, and the extrusion block is attached to the chamfer.

[0010] As a preferred scheme of the folding membrane filter, the fixing assembly further comprises a locking piece arranged on the rotating ring, and the locking piece comprises a handle, a locking block, a first spring, a connecting plate and a pressing block.

[0011] As a preferred scheme of the folding membrane filter, a locking groove is formed on the fixing ring, and the number of the locking grooves is plural, and the locking block is clamped with the locking groove.

[0012] As a preferred scheme of the folding membrane filter, a first guide groove is formed in the locking block, and a first guide column is arranged in the first guide groove.

[0013] As a preferred scheme of the folding membrane filter, a second guide groove is formed in the pressing block, and a second guide column is arranged in the second guide groove.

[0014] As a preferred scheme of the folding membrane filter, a second spring is fixed on one side of the sliding block, and the other end of the second spring is fixed with the inner wall of the sliding groove.

[0015] As a preferred scheme of the folding membrane filter, the main body assembly further comprises an inlet, an outlet and a supporting leg, the inlet is fixed on the base, the outlet is located on the bottom of the base, and the supporting leg is fixed on the base.

[0016] The folding membrane filter has the following beneficial effects: the fixing assembly is arranged to lock the bottom plate and the shell, and provide additional force to make the shell further close to the bottom plate, thereby increasing the sealing performance; when the sealing performance of the sealing ring decreases, the fixing assembly can further adjust the attachment degree between the bottom plate and the shell, so that they are attached more tightly to perform sealing compensation, so that the filter does not need to frequently replace the sealing ring, and the service life of the sealing ring is prolonged to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the connotation of the present application. Among them:

[0018] Figure 1 It is a whole structure diagram of the folded membrane filter.

[0019] Figure 2 It is a folded membrane structure diagram of the folded membrane filter.

[0020] Figure 3 It is a base sectional structure diagram of the folded membrane filter.

[0021] Figure 4 It is a handle sectional structure diagram of the folded membrane filter. Figure 3 It is a local enlarged structure diagram of A in the middle.

[0022] Figure 5 It is a top view structure diagram of the rotating ring of the folded membrane filter.

[0023] Figure 6 It is an arc block structure diagram of the folded membrane filter.

[0024] Figure 7 It is a pressing block structure diagram of the folded membrane filter.

[0025] Figure 8 It is a handle sectional structure diagram of the folded membrane filter. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0027] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0028] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0029] Embodiment 1

[0030] Reference Figures 1-8 For the first embodiment of the utility model, the embodiment provides a folding membrane filter, the folding membrane filter includes main part assembly 100, including shell 101, base 102, folding membrane 103, sealing ring 104 and bottom plate 105, base 102 is set up below shell 101, base 102 is set with installation groove 102-1, folding membrane 103 is located in installation groove 102-1, folding membrane 103 is installed by clamping seat and clamping with base 102, this is prior art, and the present scheme does not make superfluous words, and the person skilled in the art can clearly know the working principle, sealing ring 104 is set on base 102, bottom plate 105 is fixed on the bottom of shell 101, and the corresponding groove of sealing ring 104 is set on base 102 and bottom plate 105.

[0031] Shell 101, base 102, folding membrane 103 and sealing ring 104 jointly constitute a filter, when assembling the filter, folding membrane 103 is installed on base 102 first, then sealing ring 104 is placed on the corresponding groove of base 102, and then shell 101 is placed on base 102, so that sealing ring 104 is also placed on the corresponding groove of bottom plate 105, so that base 102 is aligned with shell 101.

[0032] Fixed assembly 200 is set on base 102 and includes fixing piece 201, the setting of fixing piece 201 is used to realize the stable connection of base 102 and shell 101, and the sealing property between the two is ensured.

[0033] Fixing piece 201 includes fixed ring 201a, rotating ring 201b, sliding block 201c, arc-shaped side plate 201d, arc-shaped upper plate 201e and arc-shaped block 201f, wherein the number of sliding block 201c, arc-shaped side plate 201d, arc-shaped upper plate 201e and arc-shaped block 201f is four groups, so that four positions are fixed to base 102 and bottom plate 105 respectively, so that the stability of the connection of shell 101 and base 102 is ensured.

[0034] Fixed ring 201a is fixed on base 102, rotating ring 201b is bearing connected with fixed ring 201a, sliding groove 201a-1 is formed in fixed ring 201a, sliding block 201c slides in sliding groove 201a-1, arc-shaped side plate 201d is fixed on sliding block 201c, sliding block 201c is used to drive arc-shaped side plate 201d to move, through the cooperation of sliding block 201c and sliding groove 201a-1, arc-shaped side plate 201d can only move in the direction of sliding groove 201a-1, arc-shaped upper plate 201e is fixed with arc-shaped side plate 201d, through the cooperation of arc-shaped upper plate 201e and arc-shaped side plate 201d, base 102 and bottom plate 105 are tightly connected.

[0035] The arc-shaped block 201f is fixed on the rotating ring 201b, and the arc-shaped block 201f can be attached to the arc-shaped side plate 201d. The arc-shaped block 201f is obliquely arranged on the rotating ring 201b, one end of the arc-shaped block 201f is close to the outer ring of the rotating ring 201b, and the other end is close to the rotating ring. When the rotating ring 201b rotates relative to the fixed ring 201a, the rotating ring 201b drives the arc-shaped block 201f to rotate synchronously, the arc-shaped block 201f is attached to the arc-shaped side plate 201d, and the arc-shaped block 201f is attached to the arc-shaped side plate 201d. The inner ring of 201b, thereby applying a pushing force to the arc-shaped side plate 201d, and then making it close to or away from the bottom plate 105.

[0036] In the initial state, the sliding block 201c is located away from the bottom plate 105, the arc-shaped side plate 201d is in contact with the part of the arc-shaped block 201f close to the outer ring of the rotating ring 201b, then rotate the rotating ring 201b clockwise, which drives the arc-shaped block 201f to rotate synchronously, the arc-shaped side plate 201d is extruded by the arc-shaped block 201f, and the arc-shaped side plate 201d moves along the arc-shaped part of the arc-shaped block 201f to the inner ring of the rotating ring 201b, that is, the direction of the bottom plate 105, thereby making the sliding block 201c move to the direction of the sliding groove 201a-1 and the bottom plate 105, and making the arc-shaped upper plate 201e move to the bottom plate 105 at the same time and be located above the bottom plate 105, thereby limiting the movement of the shell 101 and making it not separated from the base 102.

[0037] Embodiment 2

[0038] Reference Figures 1-8 For the second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0039] Specifically, the rotating ring 201b is provided with a rotating groove 201b-1, and the sliding block 201c can slide in the rotating groove 201b-1. The number of the rotating groove 201b-1 is the same as that of the sliding block 201c and one-to-one correspondence.

[0040] Since the rotating ring 201b rotates relative to the fixed ring 201a, when the rotating ring 201b rotates, the sliding block 201c on the fixed ring 201a will not rotate, and the sliding block 201c will slide in the rotating groove 201b-1, thereby not affecting the rotation of the rotating ring 201b.

[0041] Specifically, the arc-shaped upper plate 201e is fixed with an extrusion block 201g at the bottom, and one side of the extrusion block 201g is fixed on the arc-shaped side plate 201d.

[0042] The extrusion block 201g is arc-shaped as a whole, and the cross section is a right triangle. The extrusion block 201g is arranged to extrude the bottom plate 105, so that the bottom plate 105 moves downward, thereby making the shell 101 close to the base 102, and the sealing ring 104 is compressed, thereby improving the sealing performance.

[0043] Specifically, the bottom plate 105 is provided with a chamfer 105-1, and the angle of the inclined surface of the extrusion block 201g is consistent with the angle of the chamfer 105-1. When the rotating ring 201b rotates to drive the arc-shaped side plate 201d and the arc-shaped upper plate 201e to move towards the bottom plate 105, the extrusion block 201g will first contact and extrude the chamfer 105-1 on the bottom plate 105. With the further movement of the arc-shaped side plate 201d, the extrusion block 201g will continue to move towards the bottom plate 105. At this time, under the extrusion of the extrusion block 201g, the bottom plate 105 will move downward, and the sealing ring 104 will be extruded by cooperating with the base 102, so as to improve the sealing performance.

[0044] Specifically, the fixing assembly 200 further comprises a locking piece 202 arranged on the rotating ring 201b. The locking piece 202 is arranged to lock the rotating angle of the rotating ring 201b relative to the fixing ring 201a, so as to ensure that the rotating ring 201b will not rotate again to affect the sealing performance of the shell 101 and the base 102 after the installation of the shell 101 and the base 102.

[0045] The locking piece 202 comprises a handle 202a, a locking block 202b, a first spring 202c, a connecting plate 202d and a pressing block 202e. The handle 202a is fixed on the rotating ring 201b and is used to drive the rotating ring 201b to rotate. The handle 202a is provided with a first moving slot 202a-1. The locking block 202b slides in the first moving slot 202a-1. One end of the first spring 202c is fixed on the locking block 202b, and the other end is fixed on the inner wall of the locking block 202b. The first spring 202c continuously applies a pushing force to the locking block 202b. The connecting plate 202d is fixed on the locking block 202b. The pressing block 202e is fixed on the connecting plate 202d. The connecting plate 202d is used to connect the pressing block 202e and the locking block 202b. The pressing block 202e is used to drive the locking block 202b to move.

[0046] The handle 202a is provided with a second moving slot 202a-2 corresponding to the connecting plate 202d and a third moving slot 202a-3 corresponding to the pressing block 202e. The first moving slot 202a-1 is in communication with the second moving slot 202a-2 and the third moving slot 202a-3.

[0047] Specifically, the fixing ring 201a is provided with a plurality of locking grooves 201a-2 arranged in an arc shape. The locking block 202b can be engaged with the locking grooves 201a-2.

[0048] When the locking block 202b is coaxial with the locking grooves 201a-2, the locking block 202b will be engaged with the locking grooves 201a-2 under the pushing force of the first spring 202c. At this time, the rotating ring 201b cannot rotate relative to the fixing ring 201a.

[0049] In the initial state, the slider 201c is located away from the bottom plate 105, the arc-shaped side plate 201d is in contact with the part of the arc-shaped block 201f close to the outer circle of the rotating ring 201b, at this time, the locking block 202b is engaged with one of the locking grooves 201a-2, the pressing block 202e is moved upward, the connecting plate 202d is driven to move upward synchronously with the locking block 202b, so that the locking block 202b is separated from the locking groove 201a-2, at this time, the locking block 202b does not hinder the rotation of the rotating ring 201b, the handle 202a drives the rotating ring 201b to rotate clockwise, when the rotating ring 201b rotates to the appropriate position, the rotating ring 201b is released, and under the pushing of the first spring 202c, the locking block 202b moves downward again and is engaged with the other locking groove 201a-2, so as to limit the rotation of the rotating ring 201b.

[0050] Embodiment 3

[0051] Referring to Figures 1-8 For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0052] Specifically, the first guide groove 202b-1 is arranged in the locking block 202b, the first guide column 202f is arranged in the first guide groove 202b-1, and the first guide column 202f is fixed to the inner wall of the first moving groove 202a-1.

[0053] Through cooperation of the first guide column 202f and the first guide groove 202b-1, when the locking block 202b moves vertically along the first moving groove 202a-1, the first guide column 202f slides in the first guide groove 202b-1, so as to ensure that the locking block 202b can move vertically.

[0054] Specifically, the second guide groove 202e-1 is arranged in the pressing block 202e, the second guide column 202g is arranged in the second guide groove 202e-1, and the second guide column 202g is fixed to the inner wall of the second moving groove 202a-2.

[0055] When the pressing block 202e moves upward, the connecting plate 202d moves synchronously, the second guide column 202g slides on the second guide groove 202e-1, so as to ensure that the connecting plate 202d can move stably in the second moving groove 202a-2, and cooperate with the first guide column 202f and the first guide groove 202b-1, so as to ensure that the pressing block 202e can stably drive the locking block 202b to move synchronously.

[0056] The third spring 202h is arranged on the outer sleeve of the second guide column 202g, both ends of the third spring 202h are fixed to the inner wall of the second moving groove 202a-2 and the connecting plate 202d respectively, and the third spring 202h is used for driving the pressing block 202e to reset.

[0057] Specifically, the slider 201c is fixed with a second spring 201h on one side, and the other end of the second spring 201h is fixed with the inner wall of the sliding groove 201a-1.

[0058] The second spring 201h continuously pushes the slider 201c, so that the slider 201c can move in the sliding groove 201a-1 away from the bottom plate 105.

[0059] When a new folding film 103 needs to be replaced, the rotating ring 201b is counterclockwise rotated, so that the arc-shaped block 201f is reversely rotated, the arc-shaped block 201f no longer presses the arc-shaped side plate 201d, the slider 201c is reset under the pushing of the second spring 201h, and the arc-shaped side plate 201d and the arc-shaped upper plate 201e are reset, so that the restriction of the shell 101 and the base 102 is released, and the shell 101 and the base 102 can be separated.

[0060] Specifically, the main body assembly 100 further comprises an inlet 106, an outlet 107 and support legs 108, the inlet 106 is fixed on the base 102, the outlet 107 is located at the bottom of the base 102, and the support legs 108 are fixed on the base 102.

[0061] The base 102 is provided with an inlet channel 102-2 and an outlet channel 102-3, the inlet 106 is connected with the inlet channel 102-2, the outlet 107 is connected with the outlet channel 102-3, and the support legs 108 are provided in three groups to provide stable support for the whole filter.

[0062] In use, the folding film 103 is first installed on the base 102, then the sealing ring 104 is placed on the corresponding groove of the base 102, and then the shell 101 is placed on the base 102, so that the sealing ring 104 is also placed on the corresponding groove of the bottom plate 105, the base 102 is aligned with the shell 101, the pressing block 202e is pressed to move upward, the connecting plate 202d and the locking block 202b are synchronously moved upward, so that the locking block 202b is separated from the locking groove 201a-2, and the handle 202a drives the rotating ring 201b to rotate clockwise.

[0063] The rotating ring 201b rotates to drive the arc-shaped side plate 201d and the arc-shaped upper plate 201e to move towards the bottom plate 105, the arc-shaped side plate 201d is extruded by the arc-shaped block 201f, the arc-shaped side plate 201d will move along the arc-shaped part of the arc-shaped block 201f towards the inner circle of the rotating ring 201b, i.e. the bottom plate 105, thereby moving the slider 201c along the sliding groove 201a-1 towards the bottom plate 105, at the same time, the arc-shaped upper plate 201e is synchronously moved towards the bottom plate 105 and located above the bottom plate 105, thereby limiting the movement of the outer shell 101 so as not to separate from the base 102, with the arc-shaped side plate 201d moving towards the bottom plate 105, the extrusion block 201g will first contact the chamfer 105-1 on the bottom plate 105 and extrude it, with the further movement of the arc-shaped side plate 201d, the extrusion block 201g will continue to move towards the bottom plate 105, at this time, under the extrusion of the extrusion block 201g, the bottom plate 105 will move downwards to extrude the sealing ring 104 in cooperation with the base 102, thereby improving the sealing performance.

[0064] After the rotating ring 201b is rotated to the appropriate position, the rotating ring 201b is loosened, and under the pushing of the first spring 202c, the locking block 202b moves downwards again to be engaged with the other locking groove 201a-2, thereby limiting the rotation of the rotating ring 201b.

[0065] When the sealing performance of the sealing ring 104 is reduced, the rotating ring 201b can be further rotated clockwise to make the extrusion block 201g further extrude the bottom plate 105, so as to compress the sealing ring 104 to improve the sealing performance.

[0066] When it is necessary to replace the new folding film 103 or the sealing ring 104, the rotating ring 201b is counterclockwise rotated to make the arc-shaped block 201f rotate reversely, the arc-shaped block 201f no longer extrudes the arc-shaped side plate 201d, under the pushing of the second spring 201h, the slider 201c is reset to further drive the arc-shaped side plate 201d and the arc-shaped upper plate 201e to reset, thereby releasing the limitation of the outer shell 101 and the base 102 so that they can be separated.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application 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 application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A pleated membrane filter characterized by: The utility model relates to a kind of foldable film fixing device, including, Main body assembly (100), including shell (101), pedestal (102), folding film (103), sealing ring (104) and bottom plate (105), the pedestal (102) is set below the shell (101), the pedestal (102) is provided with mounting groove (102-1), the folding film (103) is located in the mounting groove (102-1), the sealing ring (104) is set on the pedestal (102), the bottom plate (105) is fixed on the bottom of the shell (101); Fixed component (200) is set on the pedestal (102), including fixed part (201), the fixed part (201) includes fixed ring (201a), rotating ring (201b), sliding block (201c), arc side plate (201d), arc upper plate (201e) and arc block (201f), the fixed ring (201a) is fixed on the pedestal (102), the rotating ring (201b) is bearing connected with the fixed ring (201a), the fixed ring (201a) is provided with sliding slot (201a-1), the sliding block (201c) is slid in the sliding slot (201a-1), the arc side plate (201d) is fixed on the sliding block (201c), the arc upper plate (201e) is fixed with the arc side plate (201d), the arc block (201f) is fixed on the rotating ring (201b).

2. The pleated membrane filter of claim 1 wherein: The rotating ring (201b) is provided with rotating groove (201b-1), and the sliding block (201c) can slide in the rotating groove (201b-1).

3. The pleated membrane filter of claim 1 or 2, wherein: The arc upper plate (201e) is fixed with extrusion block (201g) at the bottom, and one side of the extrusion block (201g) is fixed on the arc side plate (201d).

4. The pleated membrane filter of claim 3 wherein: The bottom plate (105) is provided with chamfer (105-1), and the extrusion block (201g) can be attached to the chamfer (105-1).

5. The pleated membrane filter of claim 4 wherein: The fixed component (200) further includes locking part (202), which is arranged on the rotating ring (201b) and includes handle (202a), locking block (202b), first spring (202c), connecting plate (202d) and pressing block (202e), the handle (202a) is fixed on the rotating ring (201b), the handle (202a) is provided with first moving slot (202a-1) inside, the locking block (202b) slides in the first moving slot (202a-1), one end of the first spring (202c) is fixed on the locking block (202b), the other end is fixed on the inner wall of the locking block (202b), the connecting plate (202d) is fixed on the locking block (202b), and the pressing block (202e) is fixed on the connecting plate (202d).

6. The pleated membrane filter of claim 5 wherein: The fixed ring (201a) is provided with locking slot (201a-2), the number of the locking slot (201a-2) is multiple, and the locking block (202b) can be engaged with the locking slot (201a-2).

7. The pleated membrane filter of claim 5 or 6, wherein: A first guide slot (202b-1) is formed in the locking block (202b), and a first guide column (202f) is arranged in the first guide slot (202b-1).

8. The pleated membrane filter of claim 7, wherein: A second guide slot (202e-1) is formed in the pressing block (202e), and a second guide column (202g) is arranged in the second guide slot (202e-1).

9. The pleated membrane filter of claim 8 wherein: The sliding block (201c) is fixed with a second spring (201h) on one side, and the other end of the second spring (201h) is fixed with the inner wall of the sliding slot (201a-1).

10. The pleated membrane filter of claim 8 or 9, wherein: The main body assembly (100) further comprises an inlet (106), an outlet (107) and a supporting leg (108), the inlet (106) is fixed on the base (102), the outlet (107) is located at the bottom of the base (102), and the supporting leg (108) is fixed on the base (102).

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