Plastic pressure filter with filter element

Abstract

A plastic pressure filter with a filter element belongs to the technical field of pressure filtering pipelines and comprises a pipe body, a seal head and a seal bottom plate, the end sockets are fixedly connected with the pipe body through flange fastening assemblies, and each flange fastening assembly comprises at least six fastening units. In order to solve the problems that an existing glass fiber reinforced plastic pressure filter is fragile and integrally heavy, the pressure container made of the plastic material is provided, and due to the fact that the pressure container is made of the plastic material, an end socket structure at the end of the pressure container needs eight fastening units to be pressed in all directions.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pressure filter pipeline, and particularly relates to a plastic pressure filter with a filter core. BACKGROUND

[0002] At present, the pressure containers used by microfiltration membranes on the market are all processed and manufactured from stainless steel or hard plastic. The stainless steel pressure containers have problems of corrosion and leakage at the welding seams after long-time use, and the hard plastic pressure containers are prone to aging, cracking and leakage after long time use.

[0003] In order to solve the above problems, a microfiltration membrane glass fiber reinforced plastic pressure filter with an attractive appearance is designed in the publication CN201157724Y, but in the current high-speed development of new materials and technology, the glass fiber reinforced plastic pressure filter is fragile and heavy. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the problems of fragility and heaviness of the existing glass fiber reinforced plastic pressure filter, and provides a pressure container made of plastic material. The end head structure of the pressure container needs to be redesigned because it is made of plastic material.

[0005] In order to match the pressure filter made of plastic material, the following technical scheme is provided. A plastic pressure filter with a filter core comprises a pipe body, a head and a bottom plate respectively located at two ends of the pipe body, and a flange fastening assembly for fixedly connecting the head and the pipe body. The flange fastening assembly comprises at least six fastening units.

[0006] In an implementable manner, the fastening unit comprises a fastening female unit located at the side edge of the head and a fastening male unit located at the side edge of the pipe body. A screw rod is movably connected to the fastening male unit, and the head is fixed by clamping the screw rod in the fastening female unit.

[0007] In an implementable manner, the fastening male unit comprises a pair of ears integrally formed with the pipe body. A horizontal through hole is formed in the thickness direction of the ear, and the distance between the through hole and the head is more than 15mm.

[0008] In an implementable manner, the screw rod comprises a latch, which is embedded in the through hole,

[0009] A lifting eye nut is sleeved on the latch and rotates between the pair of ears.

[0010] A limiting piece is located at the other end of the lifting eye nut and clamped on the fastening female unit when fixed.

[0011] In an implementable manner, the fastening female unit comprises a fastening base body integrally formed with the end head, and a limiting groove for accommodating the lifting ring nut is formed on the fastening base body;

[0012] The fastening female unit further comprises an engaging groove for limiting the limiting piece on the upper surface of the fastening female unit.

[0013] In an implementable manner, the bottom plate comprises a bottom cover located at the other end of the pipe body, and a base fixed on the bottom cover;

[0014] The bottom cover is semispherical, and at least four protruding feet are integrally formed on the surface of the bottom cover,

[0015] The base has a concave pit matched with the bottom cover, the concave pit further has a recess matched with the protruding feet, and the base further has an outwardly expanding outer edge connected with the concave pit through a reinforcing rib.

[0016] Compared with the prior art, the utility model has the following beneficial effects: in the case of adopting the plastic material, the end head can be fully pressed and sealed, and no cracks or other problems can occur under pressure. The structure of the flange fastening assembly ensures that the screw rod for fixing is connected to the pipe body when the end head is disassembled, because the existing split screw rod is easily damaged or lost under high-frequency disassembly, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] 1 pipe body, 2 end head, 3 bottom plate, 4 fastening unit,

[0018] 31 base, 32 protruding foot, 41 fastening female unit, 42 fastening male unit, 43 screw rod, 411 limiting groove, 412 engaging groove, 421 hanging ear, 422 through hole, 431 insertion piece, 432 lifting ring nut, 433 limiting piece,

[0019] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0020] Figure 2 is a schematic diagram of the explosion structure of the embodiment;

[0021] Figure 3 is Figure 2 an enlarged schematic diagram of the fastening unit at A in the embodiment;

[0022] Figure 4 is Figure 2 an enlarged schematic diagram of the bottom plate at B in the embodiment; DETAILED DESCRIPTION

[0023] As Figures 1 to 4The embodiment shown, a plastic pressure filter with filter core, comprising a tube body 1 and a head 2 and a bottom plate 3 located at both ends of the tube body 1 respectively; the head 2 is fixedly connected with the tube body 1 through a flange fastening assembly, the flange fastening assembly comprises at least 6 fastening units 4. In the prior art, the pressure filter is made of metal or glass and the like, which has strong structural strength, and can be fixed with fewer fastening units 4, while the plastic material used in the embodiment needs to be fixed on the side of the head 2 to prevent local gaps in the head 2 under high pressure, and preferably 8 fastening units 4 are used.

[0024] In the embodiment, the fastening unit 4 comprises a fastening female unit 41 located on the side of the head 2, and a fastening male unit 42 located on the side of the tube body 1, and a screw member 43 is movably connected on the fastening male unit 42, and the fixation of the head 2 is realized by clamping the fastening female unit 41 through the screw member 43.

[0025] In the embodiment, the fastening male unit 42 comprises a pair of ears 421 integrally formed with the tube body 1; a horizontal through hole 422 is formed in the thickness direction of the ear 421, and the distance between the through hole 422 and the head 2 is more than 15mm. In the embodiment, the distance between the through hole 422 and the head 2 is 35mm.

[0026] In the embodiment, the screw member 43 comprises a latch 431 embedded in the through hole 422; and a lifting ring nut 432 sleeved on one end of the latch 431, the lifting ring nut 432 rotates between the pair of ears 421; a limiting piece 433 located at the other end of the lifting ring nut 432, which is clamped on the fastening female unit 41 when fixed.

[0027] And the fastening female unit 41 comprises a fastening base integrally formed with the head 2, and a limiting groove 411 is formed on the fastening base to accommodate the lifting ring nut 432; and a clamping groove 412 is formed on the upper surface of the fastening female unit 41 to limit the limiting piece 433.

[0028] In the embodiment, the fixing method between the head 2 and the tube body 1 is to rotate one of the lifting ring nuts 432 in the ear 421, the lifting ring nut 432 enters the limiting groove 411, then the limiting piece 433 is adjusted to enter the clamping groove 412, and then the tightening of one fastening unit 4 is realized by tightening the lifting ring of the lifting ring nut 432, and then the above operation is sequentially performed on the 8 fastening units 4 along the clockwise direction to realize the fastening of the whole head 2.

[0029] In the embodiment, the bottom sealing plate 3 comprises a bottom sealing plate located at the other end of the pipe body 1 and a base 31 fixed on the bottom sealing plate; wherein the bottom sealing plate is hemispherical, and four evenly distributed protruding feet 32 are integrally formed on the surface of the bottom sealing plate; the base 31 has a concave pit matched with the bottom sealing plate, the concave pit further has a recess matched with the protruding feet 32, and the base 31 further has an outwardly expanding outer edge connected with the concave pit through a reinforcing rib.

[0030] Although the embodiments of the utility model have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

[0031] In the description of the present specification, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the technical scheme of the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present patent application.

[0032] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present patent application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present specification, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present specification can be understood according to the specific circumstances.

[0034] In this specification, unless otherwise expressly specified and limited, a first feature being "on", "above", or "under" a second feature can mean that the first and second features are directly in contact, or that the first and second features are indirectly in contact through an intermediate medium. Also, a first feature being "over", "above", or "on top of" a second feature can mean that the first feature is directly on top of or obliquely on top of the second feature, or that the first feature is merely horizontally higher than the second feature. A first feature being "under", "below", or "underneath" a second feature can mean that the first feature is directly below or obliquely below the second feature, or that the first feature is merely horizontally lower than the second feature.

[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0036] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A plastic pressure filter with filter core, comprising a tube body (1) and a head cover (2) and a bottom plate (3) respectively located at both ends of the tube body (1); characterized in that The head cover (2) and the tube body (1) are fixedly connected through a flange fastening assembly, and the flange fastening assembly comprises at least six fastening units (4).

2. The plastic pressure filter with a filter cartridge according to claim 1, characterized in that The fastening unit (4) comprises a fastening female unit (41) located on the side of the head cover (2), And a fastening male unit (42) located on the side of the tube body (1), the fastening male unit (42) movably connected with a screw rod (43), and the fixation of the head cover (2) is realized by clamping the fastening female unit (41) through the screw rod (43).

3. The plastic pressure filter with a filter cartridge according to claim 2, characterized in that The fastening male unit (42) comprises a pair of hanging ears (421) integrally formed with the tube body (1); a horizontal through hole (422) is formed in the thickness direction of the hanging ear (421), and the distance between the through hole (422) and the head cover (2) is more than 15mm.

4. The plastic pressure filter with a filter cartridge according to claim 3, characterized in that The screw rod (43) comprises a latch (431) embedded in the through hole (422), a lifting eye nut (432) having one end sleeved on the latch (431) and rotating between a pair of hanging ears (421), A limiting sheet (433) located at the other end of the lifting eye nut (432) and clamped on the fastening female unit (41) when fixed.

5. The plastic pressure filter with a filter cartridge according to claim 4, characterized in that The fastening female unit (41) comprises a fastening base integrally formed with the head cover (2), and the fastening base is provided with a limiting groove (411) for accommodating the lifting eye nut (432); Further comprising a clamping groove (412) on the upper surface of the fastening female unit (41) for limiting the limiting sheet (433).

6. The plastic pressure filter with a filter cartridge according to claim 1, characterized in that The bottom plate (3) comprises a bottom cover located at the other end of the tube body (1) and a base (31) fixed on the bottom cover; wherein the bottom cover is semispherical and integrally formed with at least four evenly distributed convex feet (32) on the surface, the base (31) has a pit matched with the bottom cover, the pit further has a recess matched with the convex feet (32), and the pit further has an outwardly expanding outer edge connected between the pit and the recess.

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