Anti-burst transparent visible pre-filter

Abstract

The utility model provides an anti-burst transparent visible pre-filter, and relates to the technical field of filtering devices. By arranging the visual assembly to be matched with the visual window, the sealing piece in the visual assembly can ensure that when the transparent piece blocks the visual window, the transparent piece and the visual window are connected in a sealed mode, water leakage is prevented, the transparent piece is fixed to the visual window through the fixing piece, and a user can directly observe the visual window through the observation hole in the fixing piece. According to the pre-filter, the filtering and blocking conditions in the transparent part are observed, visualization of the filtering condition of the pre-filter is achieved, meanwhile, the stability of the metal shell is higher, and the hidden danger that the shell of the pre-filter bursts in the using process is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to an explosion-proof transparent visible pre-filter. Background Art

[0002] The pre-filter is the first coarse filtration device for the water used in the whole house. It can filter out mud, rust, algae and other large particles of impurities in tap water, and play an active and effective protective role for the water pipes, faucets, valve fittings, and terminal water facilities in the whole house. It is generally installed behind the water meter in the water inlet pipe. The existing pre-filter structure is mainly composed of a copper alloy valve body, a shell connected to the copper alloy valve body at the upper end, a drain valve connected to the shell at the lower end, and a filter mesh assembly inside the shell. In order to facilitate the observation of the filtration blockage of the pre-filter and realize the visualization of the filtration part of the pre-filter, transparent plastic is usually directly used as the preparation material of the shell, such as transparent PC or PA. This transparent plastic shell allows users to check the accumulation of stains on the surface of the filter and observe the filtration of the pre-filter at any time.

[0003] Although the existing transparent PC or PA materials can meet the basic performance requirements of pipeline products, the premise is that the PC or PA molding process needs to be strictly controlled, such as mold temperature, material humidity, etc. Once the process control is not strict, such as when the heating temperature is uneven, or the humidity is too high or too low, stress will be generated inside the transparent plastic shell, resulting in poor product performance. The quality difference of these transparent plastic shells cannot be observed with the naked eye, and it is difficult to measure the performance difference in a short time. However, after a period of use and / or under the influence of environmental conditions, the stress in the transparent plastic shell will be released, resulting in the risk of the transparent plastic shell bursting, causing great property losses to users. Therefore, how to ensure the safe and stable use of the pre-filter and realize the visualization of the pre-filtration process is one of the common goals pursued in this field.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The utility model aims to provide an explosion-proof transparent visible pre-filter, which can ensure the safe and stable use of the pre-filter and realize the visualization of the pre-filtering process.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In the first aspect, the utility model provides an explosion-proof transparent visible pre-filter, including a pre-filter body, the pre-filter body including a metal shell, a filter assembly, a water inlet and outlet assembly, a sewage discharge assembly and a visible assembly, the filter assembly is accommodated in the metal shell, the sewage discharge assembly is connected to the filter assembly and is arranged at one end of the metal shell, the water inlet and outlet assembly is arranged at the end of the metal shell away from the sewage discharge assembly, a visible window is opened on the metal shell and passes through the inner and outer surfaces of the metal shell, and the visible assembly is installed on the surface of the visible window.

[0008] The visible component includes a sealing part, a transparent part and a fixing part; the opposite ends of the transparent part are respectively a sealing end and a visual end, the sealing end is provided with a sealing part installation position, the sealing part is accommodated in the sealing part installation position, and the sealing end blocks the visual window on the metal shell, the fixing part is sleeved on the surface of the visual end of the transparent part and is tightly connected to the visual window, and an observation hole penetrating the surface of the visual end is opened on the fixing part.

[0009] Optionally, the sealing end of the transparent part includes a sealing surface and a sealing protrusion, the sealing protrusion protrudes from the sealing surface, there are at least two seals, and at least one sealing installation position is provided on the sealing surface and the sealing protrusion.

[0010] Optionally, the structure of the sealing element includes a sealing gasket and / or a sealing ring.

[0011] Optionally, a sealing gasket installation position is provided on the sealing surface, and the sealing gasket is accommodated in the sealing gasket installation position; a sealing ring installation position is provided on the sealing protrusion, and the sealing ring is accommodated in the sealing ring installation position.

[0012] Optionally, the connection between the fixing member and the viewing window includes any one of direct thread connection or flange and thread matching connection.

[0013] Optionally, when the connection between the fixing piece and the visible window is a direct threaded connection, the visible window is circular, the fixing piece is a nut, and a tightening position is provided on the side of the outer surface of the nut.

[0014] Optionally, when the connection between the fixing part and the visible window is a flange and threaded connection, the fixing part includes a metal pressing plate and a screw, and screw holes are provided on the metal pressing plate and the visible window in a one-to-one correspondence, and the screws and the screw holes are threadedly matched to fix the above-mentioned metal pressing plate to the metal shell.

[0015] Optionally, the shape of the visible window includes any of a circle, a polygon, a sector, or a special shape formed by a combination of two or more shapes. The special shape may be, for example, a teardrop shape, or a shape formed by a combination of multiple shapes, such as a combination of a rectangle and four squares, where the four squares are located at the midpoints of the four sides of the rectangle.

[0016] The beneficial effects of the embodiments of the utility model are:

[0017] The utility model provides an explosion-proof transparent visual pre-filter. By arranging a visual component to cooperate with a visual window, a sealing component in the visual component can ensure that when the transparent component blocks the visual window, the transparent component is sealed and connected to the visual window to prevent water leakage. The fixing component fixes the transparent component on the visual window. The user can directly observe the filtering and clogging conditions inside the transparent component through the observation hole on the fixing component, thereby realizing the visualization of the filtering conditions of the pre-filter. At the same time, the stability of the metal shell is stronger, which greatly reduces the hidden danger of the shell of the pre-filter bursting during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An exploded view of a portion of the structure of the explosion-proof transparent visible pre-filter provided in the first embodiment of the utility model;

[0020] Figure 2 An exploded view of the structure of the visual component provided in the first embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of a transparent member provided in the first embodiment of the utility model;

[0022] Figure 4 An exploded view of a portion of the structure of an explosion-proof transparent visible pre-filter provided in the second embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the structure of an explosion-proof transparent visible pre-filter provided in the second embodiment of the utility model;

[0024] Figure 6 This is a partial structural exploded view of the explosion-proof transparent visible pre-filter provided in the third embodiment of the utility model.

[0025] Icons: 100-pre-filter; 110-metal shell; 111-visible window; 112-limiting part; 120-water inlet and outlet components; 130-sewage discharge component; 140-visible component; 141-transparent part; 1411-sealing surface; 1412-sealing protrusion; 1413-sealing gasket installation position; 1414-sealing ring installation position; 142-fixing part; 1421-observation hole; 143-sealing gasket; 144-sealing ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] First embodiment

[0033] Please refer to Figure 1 The present embodiment provides an explosion-proof transparent visible pre-filter 100, which includes a pre-filter body, the pre-filter body includes a metal shell 110, a filter assembly (not shown), a water inlet and outlet assembly 120, a sewage discharge assembly 130 and a visible assembly 140, the filter assembly is accommodated in the metal shell 110, the sewage discharge assembly 130 is connected to the filter assembly and is arranged at one end of the metal shell 110, the water inlet and outlet assembly 120 is arranged at one end of the metal shell 110 away from the sewage discharge assembly 130, the metal shell 110 is provided with a visible window 111 that penetrates the inner and outer surfaces of the metal shell 110, and the visible assembly 140 is installed on the surface of the visible window 111.

[0034] Among them, the filter component, the water inlet and outlet component 120 and the sewage discharge component 130 can adopt the structure of the existing pre-filter 100. The present invention does not impose any restrictions on this. It only needs to adjust the material of the shell of the existing pre-filter 100 and set a visible window 111 on the surface of the metal shell 110, and install the visual component 140 provided by the embodiment of the present invention on the surface of the visible window 111. Therefore, the pre-filter 100 provided by the present invention has a wide range of applications and has no requirements on the model, filter structure, etc. of the pre-filter 100.

[0035] In addition, the shell of the pre-filter 100 provided in the embodiment of the utility model is a metal shell 110, wherein only the corresponding visible component 140 on the visible window 111 is made of non-metallic material. During use, the metal shell 110 serves as the main force-bearing structure, and its stability is stronger than that of the plastic shell, which significantly reduces the possibility of the metal shell 110 bursting.

[0036] Please refer to Figure 2The visible component 140 includes a sealing member, a transparent member 141 and a fixing member 142; the opposite ends of the transparent member 141 are a blocking end and a visual end respectively, the blocking end is provided with a sealing member installation position, the sealing member is accommodated in the sealing member installation position, and the blocking end blocks the visual window 111 on the metal shell 110, the fixing member 142 is sleeved on the surface of the visual end of the transparent member 141, the fixing member 142 is tightly connected to the visual window 111, and an observation hole 1421 penetrating the surface of the visual end is opened on the fixing member 142.

[0037] The sealing problem between the visual component 140 and the visual window 111 is solved by providing a sealing member, thereby ensuring the normal operation of the pre-filter 100. Since the blocking section of the transparent member 141 blocks the visual window 111, it can be understood that the shape and size of the transparent member 141 match the shape and size of the visual window 111 to ensure complete blocking of the visual window 111. By providing the transparent member 141 and providing the observation hole 1421 on the fixing member 142, the filtering condition of the filtering cavity of the pre-filter 100 inside the transparent member 141 can be directly observed from the observation hole 1421, so as to facilitate timely replacement of the filter element inside the metal housing 110.

[0038] In this embodiment, the visible window 111 is circular, the transparent member 141 is also circular, the fixing member 142 is a nut with an observation hole 1421 in the middle, the fixing member 142 has an internal thread, and the visible window 111 of the metal shell 110 is designed with an external thread. The internal and external threads of the fixing member 142 and the metal shell 110 cooperate to tightly install the transparent member 141 and the sealing member in the visible window 111. In order to facilitate the installation of the fixing member 142, a tightening position is provided on the side of the outer surface of the nut, which can be a hexagon, for example.

[0039] Please refer to Figure 3 In order to ensure the blocking capability of the transparent member 141 to the visible window 111, there are two sealing members, namely a sealing gasket 143 and a sealing ring 144. The blocking end of the transparent member 141 includes a blocking surface 1411 and a blocking protrusion 1412. The blocking protrusion 1412 protrudes longitudinally from the blocking surface 1411, so the blocking surface 1411 is an annular surface. A sealing gasket installation position 1413 is provided on the blocking surface 1411, and the sealing gasket 143 is accommodated on the sealing gasket installation position 1413. A sealing ring installation position 1414 is provided on the blocking protrusion 1412, and the sealing ring 144 is accommodated on the sealing ring installation position 1414.

[0040] Correspondingly, a limiting member 112 is arranged in the visible window 111 of the metal shell 110. The limiting member 112 is an annular surface that protrudes laterally from the visible window 111. When the transparent member 141 is installed into the visible window 111, the blocking surface 1411 of the transparent member 141 contacts the limiting member 112, and the blocking protrusion 1412 extends into the through hole formed by the limiting member 112. The sealing ring 144 blocks the gap between the limiting member 112 and the blocking protrusion 1412, and the sealing gasket 143 blocks the gap between the limiting member 112 and the blocking surface 1411, thereby achieving a double sealing effect.

[0041] The present embodiment provides an explosion-proof transparent visible pre-filter 100, and its installation process and working principle are as follows:

[0042] Accommodate the sealing ring 144 in the sealing ring installation position 1414, accommodate the sealing gasket 143 in the sealing gasket installation position 1413, and then accommodate the transparent part 141 installed with the sealing ring 144 and the sealing gasket 143 in the visible window 111, and the blocking protrusion 1412 extends into the limiting part 112, and the blocking surface 1411 contacts the limiting part 112 and completely blocks the hollow area of ​​the visible window 111, and then screw the fixing part 142 onto the external thread of the visible window 111 and tighten it with a wrench to complete the assembly of the visible component 140.

[0043] The assembled explosion-proof transparent visual pre-filter 100 can be directly installed for water filtration. During use, the use of the filter assembly inside the transparent member 141 can be observed through the observation hole 1421 on the fixing member 142. When the filter assembly is blocked, it can be replaced in time to ensure the water filtration quality and efficiency. At the same time, the metal shell 110 used in this embodiment has a more stable structure and is not prone to explosion.

[0044] Second embodiment

[0045] Please refer to Figure 4 and Figure 5 This embodiment provides an explosion-proof transparent visual pre-filter 100, whose structure is similar to that of the first embodiment, except that the fixing member 142 and the visual window 111 are connected by a flange, as follows:

[0046] In this embodiment, the viewing window 111 is elliptical, and a mounting flange is arranged around the viewing window 111, and four screw holes are arranged on the mounting flange; the transparent member 141 is also elliptical, and the shape of the fixing member 142 is the same as the shape of the mounting flange around the viewing window 111, and it also has four one-to-one corresponding screw holes, and four screws pass through the four screw holes respectively to fix the fixing member 142 on the mounting flange around the viewing window 111, and the observation hole 1421 in the middle of the fixing member 142 is also elliptical.

[0047] In order to ensure the blocking capability of the transparent member 141 to the visible window 111, the sealing members of this embodiment are also two, namely, a sealing gasket 143 and a sealing ring 144. The blocking end of the transparent member 141 includes a blocking surface 1411 and a blocking protrusion 1412. The blocking protrusion 1412 protrudes longitudinally from the blocking surface 1411, so the blocking surface 1411 is an annular surface. A sealing gasket installation position 1413 is provided on the blocking surface 1411, and the sealing gasket 143 is accommodated on the sealing gasket installation position 1413. A sealing ring installation position 1414 is provided on the blocking protrusion 1412, and the sealing ring 144 is accommodated on the sealing ring installation position 1414.

[0048] Correspondingly, a limiting member 112 is arranged in the visible window 111 of the metal shell 110. The limiting member 112 is an annular surface that protrudes laterally from the visible window 111. When the transparent member 141 is installed into the visible window 111, the blocking surface 1411 of the transparent member 141 contacts the limiting member 112, and the blocking protrusion 1412 extends into the through hole formed by the limiting member 112. The sealing ring 144 blocks the gap between the limiting member 112 and the blocking protrusion 1412, and the sealing gasket 143 blocks the gap between the limiting member 112 and the blocking surface 1411, thereby achieving a double sealing effect.

[0049] Third embodiment

[0050] Please refer to Figure 6 This embodiment provides an explosion-proof transparent visual pre-filter 100, whose structure is similar to that of the first embodiment, except that the fixing member 142 and the visual window 111 are connected by a flange, as follows:

[0051] In this embodiment, the viewing window 111 is circular, and a mounting flange is arranged around the viewing window 111, and four screw holes are arranged on the mounting flange; the transparent member 141 is also circular, and the shape of the fixing member 142 is the same as the shape of the mounting flange around the viewing window 111, and it also has four one-to-one corresponding screw holes, and four screws pass through the four screw holes respectively to fix the fixing member 142 on the mounting flange around the viewing window 111, and the observation hole 1421 in the middle of the fixing member 142 is also circular.

[0052] In order to ensure the blocking capability of the transparent member 141 to the visible window 111, the sealing members of this embodiment are also two, namely, a sealing gasket 143 and a sealing ring 144. The blocking end of the transparent member 141 includes a blocking surface 1411 and a blocking protrusion 1412. The blocking protrusion 1412 protrudes longitudinally from the blocking surface 1411, so the blocking surface 1411 is an annular surface. A sealing gasket installation position 1413 is provided on the blocking surface 1411, and the sealing gasket 143 is accommodated on the sealing gasket installation position 1413. A sealing ring installation position 1414 is provided on the blocking protrusion 1412, and the sealing ring 144 is accommodated on the sealing ring installation position 1414.

[0053] Correspondingly, a limiting member 112 is arranged in the visible window 111 of the metal shell 110. The limiting member 112 is an annular surface that protrudes laterally from the visible window 111. When the transparent member 141 is installed into the visible window 111, the blocking surface 1411 of the transparent member 141 contacts the limiting member 112, and the blocking protrusion 1412 extends into the through hole formed by the limiting member 112. The sealing ring 144 blocks the gap between the limiting member 112 and the blocking protrusion 1412, and the sealing gasket 143 blocks the gap between the limiting member 112 and the blocking surface 1411, thereby achieving a double sealing effect.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An explosion-proof transparent visual pre-filter, characterized in that: The pre-filter body comprises a metal shell, a filter assembly, a water inlet and outlet assembly, a sewage discharge assembly and a visual assembly. The filter assembly is accommodated in the metal shell, the sewage discharge assembly is connected to the filter assembly and is arranged at one end of the metal shell, the water inlet and outlet assembly is arranged at one end of the metal shell away from the sewage discharge assembly, the metal shell is provided with a visual window penetrating the inner and outer surfaces of the metal shell, and the visual assembly is installed on the surface of the visual window; The visible component includes a sealing part, a transparent part and a fixing part; the two opposite ends of the transparent part are respectively a blocking end and a visual end, the blocking end is provided with a sealing part installation position, the sealing part is accommodated in the sealing part installation position, and the blocking end blocks the visual window on the metal shell, the fixing part is sleeved on the surface of the visual end of the transparent part and is tightly connected to the visual window, and an observation hole penetrating the surface of the visual end is opened on the fixing part.

2. The explosion-proof transparent visual pre-filter according to claim 1, characterized in that: The blocking end of the transparent member includes a blocking surface and a blocking protrusion, wherein the blocking protrusion protrudes from the blocking surface. There are at least two sealing members, and at least one sealing member installation position is provided on each of the blocking surface and the blocking protrusion.

3. The explosion-proof transparent visual pre-filter according to claim 2, characterized in that: The structure of the sealing element includes a sealing gasket and / or a sealing ring.

4. The explosion-proof transparent visual pre-filter according to claim 3, characterized in that: The sealing surface is provided with a sealing gasket installation position, and the sealing gasket is accommodated in the sealing gasket installation position. The sealing protrusion is provided with a sealing ring installation position, and the sealing ring is accommodated in the sealing ring installation position.

5. The explosion-proof transparent visual pre-filter according to claim 1, characterized in that: The connection mode between the fixing member and the visual window includes any one of direct thread connection or flange and thread matching connection.

6. The explosion-proof transparent visual pre-filter according to claim 5, characterized in that: When the connection mode between the fixing member and the visible window is direct threaded connection, the visible window is circular, the fixing member is a nut, and a tightening position is arranged on the side of the outer surface of the nut.

7. The explosion-proof transparent visual pre-filter according to claim 5, characterized in that: When the connection method between the fixing part and the visible window is a flange and threaded connection, the fixing part includes a metal pressing plate and a screw. The metal pressing plate and the visible window are provided with screw holes in a one-to-one correspondence. The screw and the screw hole thread cooperate to fix the above-mentioned metal pressing plate to the metal shell.

8. The explosion-proof transparent visual pre-filter according to claim 7, characterized in that: The shape of the visible window includes any one of a circle, a polygon, a sector or a special shape formed by a combination of two or more shapes.

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