Fast-assembly flange type membrane shell

Abstract

The utility model discloses a quick-assembly flange type membrane shell, which comprises a membrane shell body and a plurality of end covers, connecting flanges are arranged at two ends of the membrane shell body, the end covers are arranged on two end surfaces of the membrane shell body, positioning columns are arranged on the inner side surfaces of the end covers, which directly face fixing holes of the connecting flanges, one ends of the positioning columns penetrate through the fixing holes, and the other ends of the positioning columns penetrate through the connecting flanges. The middle of the membrane shell body is sleeved with a plurality of adjusting rings, the ends, away from the positioning columns, of the pull ropes are all installed on the adjusting rings, and driving mechanisms for driving the adjusting rings to synchronously get close inwards or move outwards are installed between the adjusting rings. The end cover assembling and disassembling device is simple in structure, the driving mechanism can automatically drive the adjusting rings to synchronously draw close or move outwards so as to complete assembling and disassembling of the end cover, bolts do not need to be placed or used, and the assembling and disassembling efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membrane shells, in particular to a quick-install flange type membrane shell. Background Art

[0002] Reverse osmosis membrane shell, also known as membrane pressure vessel, is a supporting product for reverse osmosis, sodium filtration, ultrafiltration and other devices. Reverse osmosis membrane shells are divided into two types according to the material: stainless steel reverse osmosis membrane shell and fiberglass reverse osmosis membrane shell.

[0003] At present, the end covers on both sides of the reverse osmosis membrane shell are generally fixed to each other through connecting flanges. However, the current fixing method is relatively cumbersome and requires the use of a large number of bolts. After the bolts are unscrewed, the screws are likely to fall off or be lost. Subsequently, the bolts need to be aligned with the fixing holes on the connecting flange to be fixed. There is no place to put the disassembled end covers, resulting in reduced overall installation efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a quick-install flange type membrane shell, which can automatically complete installation and disassembly, and the end cover is always in a connected state, so as to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical solutions: a quick-install flange type membrane shell, comprising a membrane shell body and a plurality of end covers, both ends of the membrane shell body are installed with connecting flanges, the end covers are arranged on the two end surfaces of the membrane shell body, and the inner side surfaces of the end covers are installed with positioning columns at the fixing holes facing the connecting flanges, one end of the positioning columns passes through the fixing holes and is installed with a pull rope, the middle sleeve of the membrane shell body is provided with a plurality of adjustment rings, the ends of the pull ropes away from the positioning columns are installed on the adjustment rings, and a driving mechanism is installed between the adjustment rings to drive the adjustment rings to move inward or outward synchronously.

[0006] As an optimal technical solution, the driving mechanism includes a dual-axis motor, multiple screws and multiple fixed seats. The outer ring surface of the adjusting ring is protruded to form an adjustment part, and the adjusting part is provided with a screw hole. The dual-axis motor is installed on the outer wall surface of the membrane shell body. The screws are threadedly connected to the screw holes. One end of the screw is fixedly connected to the rotating shafts at both ends of the dual-axis motor through a coupling. The fixed seats are arranged close to the connecting flange, and sealed bearings are embedded on the fixed seats. The other end of the screw is installed in the inner ring of the sealed bearing. One end of the fixed seat is bent and installed on the outer wall surface of the membrane shell body.

[0007] As an optimal technical solution, the inner ring surface of the adjustment ring is arranged in contact with the outer wall surface of the membrane shell body, and multiple positioning grooves are provided on the inner ring surface of the adjustment ring. The outer ring surface of the membrane shell body is axially installed with positioning plates facing the positioning grooves, and the positioning plates are slidably set in the positioning grooves.

[0008] As a preferred technical solution, the pull ropes are all made of steel wires, and a rubber layer is installed on the outside of the pull ropes.

[0009] As a preferred technical solution, the diameter of the positioning column matches the inner diameter of the fixing hole on the connecting flange.

[0010] As a preferred technical solution, a nut is welded on the screw rod on one side.

[0011] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and the driving mechanism can automatically drive the adjusting ring to move together or outwards; after moving inwards, the positioning column can be inserted into the fixing hole of the connecting flange and tightly pressed against the end face of the end cover and the membrane shell body; after moving outwards, the end cover can be directly removed from the connecting flange and screwed onto the membrane shell body by a pull rope, without the need for placement and the use of bolts, which greatly increases the efficiency of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model after the membrane shell body is removed.

[0015] Among them, 1. Membrane shell body; 2. Connecting flange; 3. End cover; 4. Positioning column; 5. Positioning plate; 6. Adjustment ring; 7. Adjustment part; 8. Fixed seat; 9. Nut; 10. Dual-axis motor; 11. Screw; 12. Pull rope; 13. Positioning groove. DETAILED DESCRIPTION

[0016] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0017] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0018] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0019] like Figure 1 and Figure 2 As shown, a quick-install flange type membrane shell of the utility model includes a membrane shell body 1 and multiple end covers 3. Connecting flanges 2 are installed at both ends of the membrane shell body 1. The end covers 3 are arranged on the two end surfaces of the membrane shell body 1. Positioning columns 4 are installed on the inner side surfaces of the end covers 3 facing the fixing holes of the connecting flanges 2. One end of the positioning columns 4 passes through the fixing holes and is installed with a pull rope 12. The middle sleeve of the membrane shell body 1 is provided with multiple adjustment rings 6. The ends of the pull ropes 12 away from the positioning columns 4 are installed on the adjustment rings 6. A driving mechanism is installed between the adjustment rings 6 to drive the adjustment rings 6 to move inward or outward synchronously.

[0020] In this embodiment, the driving mechanism includes a dual-axis motor 10, multiple screw rods 11 and multiple fixed seats 8. The outer ring surface of the adjusting ring 6 is protruded to form an adjusting part 7, and the adjusting part 7 is provided with a screw rod 11 hole. The dual-axis motor 10 is installed on the outer wall surface of the membrane shell body 1, and the screw rods 11 are threadedly connected to the screw rod 11 holes. One end of the screw rod 11 is fixedly connected to the rotating shaft at both ends of the dual-axis motor 10 through a coupling. The fixed seats 8 are all arranged close to the connecting flange 2, and sealed bearings are embedded on the fixed seats 8. The other end of the screw rod 11 is installed in the inner ring of the sealed bearing. One end of the fixed seat 8 is bent and installed on the outer wall surface of the membrane shell body 1.

[0021] In this embodiment, the inner ring surface of the adjustment ring 6 is arranged in contact with the outer wall surface of the membrane shell body 1, and a plurality of positioning grooves 13 are provided on the inner ring surface of the adjustment ring 6. The outer ring surface of the membrane shell body 1 is axially installed with a positioning plate 5 opposite to the positioning groove 13. The positioning plate 5 is slidably set in the positioning groove 13. The adjustment ring can be positioned by the positioning groove and the positioning plate, so that the adjustment ring can only move along the axial direction of the positioning plate to ensure the stability of the movement.

[0022] In this embodiment, the pull ropes 12 are all made of steel wires, and a rubber layer is installed on the outside of the pull ropes 12.

[0023] In this embodiment, the diameter of the positioning column 4 matches the inner diameter of the fixing hole on the connecting flange 2. After the positioning column is inserted into the fixing hole of the connecting flange, the stability of the end cover can be ensured and radial movement can be avoided.

[0024] In this embodiment, a nut 9 is welded to the screw rod 11 on one side. In the event that the dual-axis motor is damaged or malfunctions, a wrench can be put on the outside of the nut, and the screw rod can be driven to rotate by turning the wrench.

[0025] When disassembling, the dual-axis motor can be started, and the start of the dual-axis motor drives the screw rod. The rotation of the screw rod can drive the adjustment ring to move outward along the positioning plate synchronously. After the inward pulling force of the adjustment ring is lost, the end cover can be directly pulled outward until the positioning column is removed from the fixing hole of the connecting flange. The end cover can be hung under the membrane shell body by bending the pull rope, and there is no need to place the end cover separately. After pulling the pull rope outward, the internal filter membrane can be taken out along the opened opening of the membrane shell body.

[0026] On the contrary, when installing, lift the end cover and pull the pull rope to insert the positioning column on the end cover into the corresponding fixing hole. After pre-positioning, the dual-axis motor can be started in the reverse direction. The reverse rotating screw can drive the adjusting ring to move inward, and the pull rope can be pulled again to further pull the positioning column and the end cover, so that the end cover can be firmly pressed and sealed with the membrane shell body, which greatly facilitates installation and disassembly, and does not require the use of redundant parts such as bolts, making operation convenient.

[0027] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A quick-install flange type membrane housing, characterized in that: The invention comprises a membrane shell body (1) and a plurality of end covers (3), wherein both ends of the membrane shell body (1) are provided with connecting flanges (2), and the end covers (3) are arranged on both end surfaces of the membrane shell body (1), and positioning columns (4) are installed on the inner side surfaces of the end covers (3) facing the fixing holes of the connecting flanges (2), one end of the positioning columns (4) passes through the fixing holes and is provided with a pull rope (12), and a plurality of adjustment rings (6) are provided in the middle sleeve of the membrane shell body (1), and the ends of the pull ropes (12) away from the positioning columns (4) are provided on the adjustment rings (6), and a driving mechanism for driving the adjustment rings (6) to synchronously move inward or outward is installed between the adjustment rings (6).

2. The quick-install flange type membrane housing according to claim 1, characterized in that: The driving mechanism comprises a dual-axis motor (10), a plurality of screw rods (11) and a plurality of fixing seats (8). The outer ring surface of the adjusting ring (6) is protruded to form an adjusting portion (7), and the adjusting portion (7) is provided with a screw rod (11) hole. The dual-axis motor (10) is installed on the outer wall surface of the membrane shell body (1). The screw rods (11) are threadedly connected to the screw rod (11) holes. One end of the screw rod (11) is fixedly connected to the rotating shafts at both ends of the dual-axis motor (10) through a coupling. The fixing seats (8) are arranged close to the connecting flange (2). A sealed bearing is embedded on the fixing seats (8). The other end of the screw rod (11) is installed in the inner ring of the sealed bearing. One end of the fixing seat (8) is bent and installed on the outer wall surface of the membrane shell body (1).

3. The quick-install flange type membrane housing according to claim 1, characterized in that: The inner ring surface of the adjusting ring (6) is in contact with the outer wall surface of the membrane shell body (1), and a plurality of positioning grooves (13) are provided on the inner ring surface of the adjusting ring (6). Positioning plates (5) are axially installed on the outer ring surface of the membrane shell body (1) facing the positioning grooves (13), and the positioning plates (5) are slidably arranged in the positioning grooves (13).

4. The quick-install flange type membrane housing according to claim 1, characterized in that: The pull ropes (12) are all made of steel wires, and the outsides of the pull ropes (12) are all provided with rubber layers.

5. The quick-install flange type membrane housing according to claim 1, characterized in that: The diameter of the positioning column (4) matches the inner diameter of the fixing hole on the connecting flange (2).

6. The quick-install flange type membrane housing according to claim 2, characterized in that: A nut (9) is welded on the screw rod (11) on one side.

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