Filtering device for small molecule water

Abstract

The utility model belongs to the technical field of filtering devices for small molecule water preparation, and particularly relates to a filtering device for small molecule water, which comprises a base and two filtering frames, the base is connected with the filtering frames through a sliding mechanism arranged on the base, the number of the filtering frames is two, and each filtering frame is provided with a jacking mechanism, a sealing mechanism and a cover buckling mechanism. The sealing mechanism is connected with a jacking mechanism used for pushing and jacking, the jacking mechanism corresponds to a cover buckling mechanism used for jacking the filter element, and an internal thread ring matched with the cover buckling mechanism is arranged on the upper side of the filter frame. According to the utility model, the plugging connection between the cover buckling mechanism and the sealing mechanism is removed through the jacking mechanism, so that the filter frame with saturated filtration can be replaced, and then the connection plugging pipe is plugged and communicated with inlet water through the reverse adjustment of the jacking mechanism, so that the filter frame with a replaced filter element can be conveniently replaced; therefore, the replacement time of the filter element is saved, the continuous production of small molecule water is ensured, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of filter device for small molecule water preparation, and specifically relates to a filter device for small molecule water. BACKGROUND

[0002] Small molecule water only refers to water with small molecular groups, and the molecular aggregation state is different from that of ordinary water. Small molecule water does not refer to the size change of single water molecules, but refers to the difference in the aggregation state of water molecules. In nature, water molecules often exist in the form of clusters, and these clusters are formed by several to dozens of water molecules connected with each other through hydrogen bonds. Small molecule water refers to those clusters with small size, usually containing only a small number of water molecules.

[0003] Small molecule water production mainly includes filtering, small molecule and activated carbon filtering and other parts. The core is small molecule, and small molecule is converted into a liquid rich in small molecule water by special physical treatment method.

[0004] In terms of working principle, the small molecule water maker utilizes high-frequency oscillation technology in physical effect to decompose ordinary tap water into small molecular cluster water. Such water has higher activity and is more beneficial to human body absorption and utilization.

[0005] Problems of the prior art:

[0006] The existing filter device needs to be filtered for a long time when used for continuous production of small molecule water. After filtering tap water for a period of time to produce small molecule water, the filtration efficiency of the filter device is reduced due to the accumulation of impurities. The replacement of the filter element in the filter device needs to disassemble multiple screws, then take out the filter element, and then install new filter element. The disassembly and replacement time is not only long, but also complicated, thereby affecting the production of small molecule water. Utility model content

[0007] The utility model aims at providing a filter device for small molecule water, which can solve the above technical problems.

[0008] The technical scheme adopted by the utility model is as follows:

[0009] The utility model provides a kind of small molecule water filter device, including base and filter frame, the sliding mechanism being connected with filter frame by being set on base, the filter frame is set to two, and all are provided with top tight mechanism, sealing mechanism and buckle cover mechanism, the sealing mechanism is connected with the top tight mechanism for pushing top tight, the top tight mechanism corresponds with the buckle cover mechanism for top tight filter core, the upper side of filter frame is provided with the internal thread ring matched with buckle cover mechanism, the buckle cover mechanism is matched with the water inlet pipe being set on stable plate, the stable plate is fixed on base, the positioning plate is fixed on base, the positioning plate upper surface is matched with sealing mechanism by being set with the circular hole being communicated with inside,

[0010] The sliding mechanism includes two side support plates and a sleeve sliding plate, two slide rail columns are sleeved on the sleeve sliding plate, and the two slide rail columns are fixed between the two side support plates.

[0011] The water inlet valve on the water inlet pipe is closed, and then the threaded rod on the top tight mechanism is rotated. The threaded rod drives the sliding push-pull plate and the connecting plate to move closer, thereby driving the two sets of movable plates and the horizontally corresponding counter-plates to move closer to each other. At the same time, the lower counter-plate releases the push-pull plate on the sealing mechanism, so that the spring pushes the push-pull plate to drive the sliding insertion pipe to move upwards. In this way, the sliding insertion pipe can be separated from the circular hole on the positioning plate.

[0012] At the same time, the upper counter-plate also descends to drive the push plate to release the push plate on the buckle cover mechanism, so as to facilitate the push plate to drive the connection insertion pipe to descend and release the insertion with the water inlet pipe. In this way, the sleeve sliding plate can drive the two filter frames to slide, so that the saturated filter frame and the filter core are displaced, and the filter frame with the installed filter core is moved to correspond to the water inlet pipe and the positioning plate. Then, the threaded rod is rotated in reverse, so that the push plate on the push plate and the outer cover ring on the connection insertion pipe move upwards and are inserted with the water inlet pipe. At the same time, the bottom surface of the water inlet pipe is pressed against the O-shaped sealing ring on the pressure sealing disc to form a seal. At the same time, the lower counter-plate drives the push-pull plate and the push-pull plate to move downwards, and the spring is extruded. At the same time, the sliding insertion pipe is driven to move downwards and is inserted with the circular hole on the positioning plate. In this way, the replacement filter frame can be used.

[0013] Then, the buckle cover mechanism on the saturated filter frame is rotated, so that the external thread on the buckle cover mechanism extrudes the cover and rotates along the internal thread ring to separate the threaded connection. In this way, the filter core in the filter frame can be removed through the internal thread ring, so that a new filter core can be replaced. Then, the buckle cover mechanism is installed, so that the filter frame is in standby state.

[0014] As preferred, the top-tightening mechanism comprises a plurality of movable plates, the plurality of movable plates are divided into groups of two and each group is fixedly connected with a connecting plate, the filter frame is peripherally sleeved with a sliding push-pull plate and an outer sleeve frame, one side of the sliding push-pull plate is fixedly connected with one group of movable plates, the other side of the sliding push-pull plate is sleeved on the other group of movable plates, the side surface of the filter frame is provided with a threaded rod, the threaded rod is threadedly matched with the sliding push-pull plate, one side of the threaded rod is rotationally matched with one connecting plate, the other side of the threaded rod is rotationally matched with a fixed plate, and the fixed plate is fixedly arranged on the side surface of one connecting plate.

[0015] As preferred, each group of movable plates is movably provided with two symmetrically distributed reverse push plates, the upper reverse push plate is hingedly connected with the outer sleeve frame, and the lower reverse push plate is hingedly connected with the push-pull driving plate.

[0016] As preferred, the sealing mechanism comprises an inner fixed cover and a sliding plug-in pipe, the inner fixed cover is fixedly arranged on the inner bottom surface of the filter frame, the inner fixed cover is provided with a plug-in hole matched with the filter core, the inner bottom surface of the inner fixed cover is fixedly provided with an inner sealing ring, and the inner hole of the inner sealing ring is peripherally provided with a protruding part made of rubber.

[0017] As preferred, the sliding plug-in pipe is sleeved on the bottom plate of the filter frame, the upper side of the sliding plug-in pipe is sleeved in the inner sealing ring, the inner fixed cover is provided with a downward pressing sealing disc, the downward pressing sealing disc is correspondingly arranged above and below the protruding part, the sliding plug-in pipe is matched with the circular hole arranged on the positioning plate, the sliding plug-in pipe is fixedly provided with a push-pull disc, the outer peripheral surface of the push-pull disc is fixedly connected with two symmetrically distributed push-pull driving plates, the sliding plug-in pipe is sleeved with a spring, the upper side of the spring is fixedly connected with the push-pull disc, and the lower side of the spring is fixedly connected with a sleeving plate.

[0018] As preferred, the buckle cover mechanism comprises an outer threaded extrusion cover and an outer cover ring, the outer threaded extrusion cover is threadedly matched with the inner screw thread arranged on the inner threaded ring, the outer threaded extrusion cover is provided with a circular ring groove, the outer cover ring is sleeved in the circular ring groove, an extrusion sealing ring is arranged between the circular ring groove and the outer cover ring, the extrusion sealing ring is arranged on the inner contraction peripheral surface of the circular ring groove, the inner contraction peripheral surface of the circular ring groove is sleeved with an inner buckling ring, and the inner buckling ring is matched with the extrusion sealing ring.

[0019] As preferred, the outer threaded extrusion cover is provided with a through hole intercommunicating with the outer cover ring, the outer peripheral surface of the outer cover ring is symmetrically provided with two push plates on the upper side, the outer peripheral opposite side surface of the filter frame is provided with two push plates, the two push plates are correspondingly arranged above and below the two push plates, respectively, the outer cover ring is provided with a connecting plug-in pipe penetrating therethrough, the outer peripheral surface of the connecting plug-in pipe is fixedly provided with a pressure-pressing sealing disc, the connecting plug-in pipe is plug-in matched with the water inlet pipe, and the pressure-pressing sealing disc is provided with an O-shaped sealing ring for pressure-pressing sealing.

[0020] The beneficial effects are:

[0021] 1、The utility model discloses a filter frame is replaced through the rotation of the threaded rod on the jacking mechanism, and the reverse push plate is driven to remove the pressing on the sliding plug-in pipe of the sealing mechanism, and the upper push on the outer cover ring column of the buckle cover mechanism is also removed, so that the sleeve sliding plate is pushed to slide, and the filter frame of the saturated filter is replaced, then the reverse adjustment of the jacking mechanism is carried out, so that the sliding plug-in pipe on the sealing mechanism is inserted and matched with the positioning plate, and the outer cover ring column of the buckle cover mechanism is lifted up, so that the connecting plug-in pipe is inserted and communicated with the water inlet, so that the filter frame of the filter element is replaced, the replacement time of the filter element is saved, the continuous production of the small molecule water is ensured, and the efficiency is improved.

[0022] 2、The utility model discloses the cooperation of the buckle cover mechanism and the internal thread ring, and the external thread extrusion cover on the buckle cover mechanism can be conveniently removed through the rotation operation, so that the filter element after filtering is conveniently replaced, so that the new filter element and filter frame are in the standby state, and are convenient for replacing and using on the downside. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the front view structural schematic diagram of the utility model;

[0024] Figure 2 It is the cross section structure schematic diagram of the filter frame in the utility model;

[0025] Figure 3 It is the structure schematic diagram of the jacking mechanism in the utility model;

[0026] Figure 4 It is the structure schematic diagram of the sealing mechanism in the utility model;

[0027] Figure 5 It is the structure schematic diagram of the buckle cover mechanism in the utility model;

[0028] Figure 6 It is the bottom view structural schematic diagram of the buckle cover mechanism in the utility model.

[0029] In the drawings, the component list represented by each sign is as follows:

[0030] 1, base; 2, side support plate; 3, filter frame; 31, support plate; 4, tightening mechanism; 41, movable plate; 42, connecting plate; 43, reverse push plate; 44, sleeve frame; 45, push plate; 46, sliding push-pull plate; 47, fixed plate; 48, threaded rod; 49, push-pull drive plate; 5, sealing mechanism; 51, inner fixed cover; 52, inner sealing ring; 53, protruding part; 54, push-pull disc; 55, sliding insertion pipe; 56, spring; 57, lower pressing sealing disc; 6, inner threaded ring; 7, cover mechanism; 71, outer threaded extrusion cover; 72, circular ring groove; 73, outer cover ring; 74, push plate; 75, connecting insertion pipe; 76, pressing sealing disc; 77, inner buckling ring; 78, extrusion sealing ring; 8, stabilizing plate; 9, water inlet pipe; 10, sliding rail column; 11, positioning plate; 12, sleeve sliding plate. DETAILED DESCRIPTION

[0031] In order to make the purpose and advantages of the utility model more clear and apparent, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope specifically requested by the utility model.

[0032] As Figures 1-6 shown, a small molecule water filter device, including base 1 and filter frame 3, base 1 is connected with filter frame 3 through the sliding mechanism arranged on it, filter frame 3 is arranged as two, and is provided with tightening mechanism 4, sealing mechanism 5 and cover mechanism 7, sealing mechanism 5 is connected with the tightening mechanism 4 for pushing and tightening, the tightening mechanism 4 corresponds to the cover mechanism 7 for tightening filter core, the upper side of filter frame 3 is provided with inner threaded ring 6 matched with cover mechanism 7, cover mechanism 7 is matched with water inlet pipe 9 arranged on stabilizing plate 8, stabilizing plate 8 is fixedly arranged on base 1, positioning plate 11 is fixedly arranged on base 1, the upper surface of positioning plate 11 is matched with sealing mechanism 5 through the circular hole opened and communicated with the inside, water outlet pipe is arranged through the upper and lower sides of filter frame 3;

[0033] The sliding mechanism includes two side support plates 2 and a sleeve sliding plate 12, two sliding rail columns 10 are sleeved on the sleeve sliding plate 12, and the two sliding rail columns 10 are fixedly arranged between the two side support plates 2, the bottom surface of the filter frame 3 is fixedly provided with two support plates 31, and the two support plates 31 are fixedly connected with the sleeve sliding plate 12.

[0034] As an optional implementation, the clamping mechanism 4 comprises a plurality of movable plates 41, the plurality of movable plates 41 are divided into two groups each and are fixedly connected with the connecting plates 42, the outer periphery of the filter frame 3 is sleeved with a sliding push-pull plate 46 and a sleeve frame 44, the sliding push-pull plate 46 is shaped as an n-shaped, one side of the sliding push-pull plate 46 is fixedly connected with one group of movable plates 41, the other side of the sliding push-pull plate 46 is sleeved on the other group of movable plates 41, the side surface of the filter frame 3 is provided with a threaded rod 48, the threaded rod 48 is threadedly connected with the sliding push-pull plate 46, one side of the threaded rod 48 is rotationally connected with one connecting plate 42, the other side of the threaded rod 48 is rotationally connected with a fixed plate 47, the fixed plate 47 is fixedly arranged on the side surface of one connecting plate 42, in this way, the rotation of the threaded rod 48 can drive the sliding push-pull plate 46 to move, and simultaneously drive the two groups of movable plates 41 to move close to or away from each other, thereby facilitating the adjustment of clamping and unclamping.

[0035] Referring to the accompanying drawings Figure 3 Each group of movable plates 41 is movably provided with two symmetrically distributed reverse push plates 43, the upper reverse push plate 43 is hingedly connected with the sleeve frame 44, and the lower reverse push plate 43 is hingedly connected with a push-pull driving plate 49, in this way, the up-and-down pushing of the reverse push plate 43 can drive the sealing mechanism 5 and the cover clamping mechanism 7 to slide and adjust accordingly, thereby facilitating the clamping and fixing of the sealing mechanism 5 and the cover clamping mechanism 7 by the reverse push plate 43.

[0036] Referring to the accompanying drawings Figure 4 The sealing mechanism 5 comprises an inner fixed cover 51 and a sliding plug-in pipe 55, the lower end of the sliding plug-in pipe 55 is closed, the inner fixed cover 51 is fixedly arranged on the inner bottom surface of the filter frame 3, the inner fixed cover 51 is provided with a plug-in hole matched with the filter element, the inner bottom surface of the inner fixed cover 51 is fixedly provided with an inner sealing ring 52, the inner hole of the inner sealing ring 52 is peripherally provided with a protruding portion 53 made of rubber, in this way, when the sliding plug-in pipe 55 slides downward, the lower sealing disc 57 is driven to be in extrusion contact with the protruding portion 53 made of rubber, thereby improving the sealing effect after the sliding plug-in pipe 55 slides and adjusts with the filter frame 3.

[0037] Further, the sliding plug pipe 55 is sleeved on the bottom plate of the filter frame 3, the upper side of the sliding plug pipe 55 is sleeved in the inner sealing ring 52, the lower pressing sealing disc 57 is arranged in the inner fixed cover 51, the lower pressing sealing disc 57 corresponds to the convex part 53 up and down, the sliding plug pipe 55 matches the circular hole arranged on the positioning plate 11, the push-pull disc 54 is fixedly arranged on the sliding plug pipe 55, the outer circumferential surface of the push-pull disc 54 is fixedly connected with the two symmetrically distributed push-pull driving plates 49, the spring 56 is sleeved on the sliding plug pipe 55, the upper side of the spring 56 is fixedly connected with the push-pull disc 54, the lower side of the spring 56 is fixedly connected with the sleeving sliding plate 12, in this way, the sliding plug pipe 55 is driven to move upward and is disconnected with the positioning plate 11 by the elastic pushing of the spring 56 when the pressing mechanism 4 is disconnected, so that the sleeving sliding plate 12 is conveniently pushed to slide and the filter frame 3 is replaced.

[0038] Referring to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 The buckle cover mechanism 7 comprises an outer threaded extrusion cover 71 and an outer cover ring 73, the outer threaded extrusion cover 71 is threadedly connected with the inner thread arranged on the inner threaded ring 6, the outer threaded extrusion cover 71 is provided with a circular groove 72, the outer cover ring 73 is sleeved in the circular groove 72, the extrusion sealing ring 78 is arranged between the circular groove 72 and the outer cover ring 73, the extrusion sealing ring 78 is arranged on the inner shrink circumferential surface of the circular groove 72, the inner shrink circumferential surface of the circular groove 72 is sleeved with the inner buckle ring 77, the inner buckle ring 77 matches the extrusion sealing ring 78, in this way, when the outer cover ring 73 slides upward, the inner buckle ring 77 is driven to move upward and contacts with the extrusion sealing ring 78 to form a seal, so that the outer cover ring 73 and the inner shrink circumferential surface of the circular groove 72 are in a sealed state, and the sealing effect after sliding adjustment is improved.

[0039] Further, the outer threaded extrusion cover 71 is provided with a through hole communicating with the outer cover ring 73, the outer circumferential surface of the outer cover ring 73 is symmetrically provided with two push plates 74, the outer circumferential surface of the filter frame 3 is provided with two push plates 45, the two push plates 45 correspond to the two push plates 74 up and down, the push plate 74 is arranged in an L shape and corresponds to the push plate 45 in a staggered manner, the outer cover ring 73 is provided with a connecting plug pipe 75, the outer circumferential surface of the connecting plug pipe 75 is fixedly provided with a pressing sealing disc 76, the connecting plug pipe 75 is plug-connected with the water inlet pipe 9, the pressing sealing disc 76 is provided with an O-shaped sealing ring for pressing sealing, in this way, when the connecting plug pipe 75 is plug-connected with the water inlet pipe 9, the pressing sealing disc 76 is driven to move upward and contacts with the bottom surface of the water inlet pipe 9, so that the O-shaped sealing ring forms a seal between the connecting plug pipe 75 and the water inlet pipe 9, and water leakage is avoided.

[0040] With the above structure, the valve on the water inlet pipe 9 is closed, and then the threaded rod 48 on the clamping mechanism 4 is rotated, the threaded rod 48 drives the sliding push-pull plate 46 and the connecting plate 42 to move close, thereby driving the two sets of movable plates 41 to drive the horizontally corresponding counter-pushing plates 43 to move close to each other, and the lower counter-pushing plate 43 releases the clamping of the push-pull plate 54 of the sealing mechanism 5, so that the spring 56 pushes the push-pull plate 54 to drive the sliding plug-in pipe 55 to move up, so that the sliding plug-in pipe 55 is separated from the round hole of the positioning plate 11;

[0041] At the same time, the upper counter-pushing plate 43 also descends to drive the push plate 45 to release the upward pushing of the push plate 74 of the buckle cover mechanism 7, so as to facilitate the push plate 74 to drive the connection plug-in pipe 75 to descend and release the plug-in of the water inlet pipe 9, so as to push the sleeve sliding plate 12 to drive the two filter frames 3 to slide, so that the filter frame 3 saturated with filtering and the filter core are displaced, and the filter frame 3 with the installed filter core is idle and moves to correspond to the water inlet pipe 9 and the positioning plate 11, and then the threaded rod 48 is reversely rotated, so that the push plate 45 pushes the push plate 74 and the outer cover ring 73 to move up and plug-in with the water inlet pipe 9, and the bottom surface of the water inlet pipe 9 is pressed on the O-shaped sealing ring on the pressing sealing disc 76 to form a seal, and the lower counter-pushing plate 43 drives the push-pull plate 49 and the push-pull plate 54 to move down and press the spring 56, and drives the sliding plug-in pipe 55 to move down and plug-in with the round hole of the positioning plate 11, so as to use the replaced filter frame 3;

[0042] Then, the buckle cover mechanism 7 on the filter frame 3 saturated with filtering is rotated, the outer thread pressing cover 71 on the buckle cover mechanism 7 is separated from the threaded connection by rotating along the inner thread ring 6, so that the filter core in the filter frame 3 is taken out through the inner thread ring 6, so that a new filter core is replaced, and the buckle cover mechanism 7 is installed, so that the filter frame 3 is in standby state.

[0043] The above is only the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A small molecule water filter device, characterized by: The utility model provides a filter frame, including base (1) and filter frame (3), base (1) is connected with filter frame (3) through the sliding mechanism of setting, filter frame (3) is set to two, and all are provided with the mechanism (4) of tightening, sealing mechanism (5) and buckle cover mechanism (7), sealing mechanism (5) is connected with the mechanism (4) of tightening for pushing and tightening, the buckle cover mechanism (7) of mechanism (4) is corresponded for the tightening filter core, the upside of filter frame (3) is provided with the internal thread ring (6) of matching with buckle cover mechanism (7), buckle cover mechanism (7) is matched with the water inlet pipe (9) of setting on the firm plate (8), firm plate (8) is fixed on base (1), and the positioning plate (11) is fixed on base (1), and the upper surface of positioning plate (11) is matched with sealing mechanism (5) through the circular hole of setting and internal intercommunication, The sliding mechanism includes two side support plates (2) and a sleeve sliding plate (12), two slide rail columns (10) are sleeved on the sleeve sliding plate (12), and the two slide rail columns (10) are fixed between the two side support plates (2). Two support plates (31) are fixedly connected to the bottom surface of the filter frame (3).

2. The small molecule water filter device of claim 1, wherein: The tightening mechanism (4) includes a plurality of movable plates (41), each group of the plurality of movable plates (41) is fixedly connected to a connecting plate (42), a sliding push-pull plate (46) and an outer sleeve frame (44) are sleeved on the outer periphery of the filter frame (3), one side of the sliding push-pull plate (46) is fixedly connected to one group of movable plates (41), the other side of the sliding push-pull plate (46) is sleeved on the other group of movable plates (41), a threaded rod (48) is arranged on the side surface of the filter frame (3), the threaded rod (48) is threadedly connected to the sliding push-pull plate (46), one side of the threaded rod (48) is rotatably connected to one connecting plate (42), and the other side of the threaded rod (48) is rotatably connected to a fixed plate (47).

3. The small molecule water filter device of claim 2, wherein: Each group of the movable plates (41) movably comprises two symmetrically distributed reverse push plates (43), the upper reverse push plate (43) is hingedly connected to the outer sleeve frame (44), and the lower reverse push plate (43) is hingedly connected to a push-pull driving plate (49).

4. The small molecule water filter device of claim 1, wherein: The sealing mechanism (5) comprises an inner fixed cover (51) and a sliding plug-in pipe (55), the inner fixed cover (51) is fixedly arranged on the inner bottom surface of the filter frame (3), the inner fixed cover (51) is provided with a plug-in hole matched with a filter core, an inner sealing ring (52) is fixedly arranged on the inner bottom surface of the inner fixed cover (51), and a convex portion (53) made of rubber is arranged on the inner hole periphery of the inner sealing ring (52).

5. The small molecule water filter device of claim 4, wherein: The sliding plug pipe (55) is sleeved on the bottom plate of the filter frame (3), the upper side of the sliding plug pipe (55) is sleeved in the inner sealing ring (52), the inner fixed cover (51) is provided with a downward pressing sealing disc (57), the downward pressing sealing disc (57) corresponds to the convex part (53) up and down, the sliding plug pipe (55) matches the circular hole provided on the positioning plate (11), the sliding plug pipe (55) is fixedly provided with a push-pull disc (54), the outer circumferential surface of the push-pull disc (54) is fixedly connected with two symmetrically distributed push-pull driving plates (49), the sliding plug pipe (55) is sleeved with a spring (56), the upper side of the spring (56) is fixedly connected with the push-pull disc (54), and the lower side of the spring (56) is fixedly connected with the sleeve sliding plate (12).

6. The small molecule water filter device of claim 1, wherein: The buckle cover mechanism (7) comprises an outer thread extrusion cover (71) and an outer cover ring (73), the outer thread extrusion cover (71) is threadedly matched with the inner screw thread provided on the inner thread ring (6), the outer thread extrusion cover (71) is provided with a circular groove (72), the outer cover ring (73) is sleeved in the circular groove (72), the extrusion sealing ring (78) is arranged between the circular groove (72) and the outer cover ring (73), the extrusion sealing ring (78) is arranged on the inner shrink circumferential surface of the circular groove (72), the inner shrink circumferential surface of the circular groove (72) is sleeved with an inner buckle ring (77), and the inner buckle ring (77) matches the extrusion sealing ring (78).

7. A small molecule water filter device according to claim 6, wherein: The outer thread extrusion cover (71) is provided with a through hole intercommunicating with the outer cover ring (73), the outer circumferential surface of the outer cover ring (73) is symmetrically provided with two push plates (74), the outer circumferential opposite side surface of the filter frame (3) is provided with two push plates (45), the two push plates (45) correspond to the two push plates (74) up and down respectively, the outer cover ring (73) is provided with a connecting plug pipe (75) penetrating through, the outer circumferential surface of the connecting plug pipe (75) is fixedly provided with a pressure sealing disc (76), the connecting plug pipe (75) is plug-connected and matched with the water inlet pipe (9), and the pressure sealing disc (76) is provided with an O-shaped sealing ring for pressure sealing.

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