Multi-pipe type water purifier capable of improving sealing performance of filter element

Abstract

The utility model discloses a multi-pipe type water purifier capable of improving the sealing performance of a filter element, which comprises a plurality of upper shell heads and a lower barrel shell, the head ends and the tail ends of the upper shell heads are sequentially communicated and connected, the lower barrel shell is arranged at the bottom ends of the upper shell heads through square flange connecting pieces, and a liquid inlet pipe is fixed on one side in each upper shell head. A circular upper concave cavity concentric with the liquid inlet pipe is formed in the bottom end of the upper shell head, a T-shaped external thread sealing sleeve is fixed in the circular upper concave cavity, a filter element body is installed at the bottom end of the T-shaped external thread sealing sleeve in a threaded mode, and the bottom end of the filter element body abuts against the bottom of the lower barrel shell. Through the structural design of threaded connection and secondary positioning of the long bolt, the impact and shaking of water flow surging on the filter element can be effectively reduced, so that the filter element body is stably fixed in the upper shell head and the lower barrel shell, the influence of the water flow surging on the filter element is reduced, and the stable operation of the water purifier is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to a water purifier with a multi-tube design capable of increasing the sealing performance of a filter element. Background Art

[0002] Multi-tube water purifier is a common household water treatment equipment, and its structure includes a shell, multiple filter units and various auxiliary facilities. The shell is usually made of high-strength plastic or stainless steel to ensure the stability and durability of the equipment. Inside the shell, there are multiple filter units, each of which contains different filter materials for multi-stage filtration. The first is the pre-filter tube, which uses coarse filter mesh or cotton core and other materials to remove large particles of impurities and extend the service life of subsequent filter elements. The second layer of filter tube is usually an activated carbon filter element, which removes odors, residual chlorine, organic compounds, etc. in the water and improves the taste of the water. Next is a more detailed filtration layer, including granular activated carbon, ultrafiltration membrane, etc., to remove tiny particles, bacteria, viruses and other microbial contaminants. However, in the current multi-tube water purifiers, during the water intake and water shut-off process, the filter element in the water purifier shell is easily shaken by the surging impact of the water flow, causing a gap in the connection between the filter element and the shell, and then the unfiltered water is mixed with the filtered water. In this way, impurities, odors and harmful substances that should have been removed may enter the drinking water again, thereby reducing the purification effect of the water purifier. Utility Model Content

[0003] The purpose of the utility model is to provide a water purifier with a multi-tube design that can increase the sealing performance of the filter element. The filter element body is threadedly connected to the liquid inlet pipe of the upper shell head, and the filter element body is secondary positioned by long bolts with internal threaded hollow columns to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water purifier with a multi-tube design that can increase the sealing performance of the filter element, comprising a plurality of upper shell heads that are connected in sequence at the head and tail ends, and a lower cylinder shell installed at the bottom end of the upper shell head through a square flange connector, a liquid inlet pipe is fixed to one side of the interior of the upper shell head, a circular upper concave cavity that is concentric with the liquid inlet pipe is provided at the bottom end of the upper shell head, a T-shaped externally threaded sealing sleeve is fixed inside the circular upper concave cavity, a filter element body is threadedly installed at the bottom end of the T-shaped externally threaded sealing sleeve, the bottom end of the filter element body is abutted against the bottom of the lower cylinder shell, internally threaded hollow columns are fixed on both sides of the top end of the upper shell head, a countersunk hole is provided at the top end of the internally threaded hollow column, and a long bolt is installed inside the countersunk hole, and the bottom end of the long bolt extends to the interior of the lower cylinder shell and cooperates with the top thread of the filter element body.

[0005] Preferably, a water inlet and a water outlet are respectively provided on both sides of the interior of the upper shell head, one end of the water inlet is connected to the top opening of the liquid inlet pipe, and the bottom end of the water outlet is connected to the lower cylinder shell.

[0006] Preferably, the filter element body includes an upper sealing cover threadedly installed at the bottom end of the T-shaped external threaded sealing sleeve, and a filter screen installed at the edge of the bottom end of the upper sealing cover, a lower sealing cover is installed at one end of the filter screen away from the upper sealing cover, and a threaded groove is provided at the top of the upper sealing cover.

[0007] Preferably, threaded holes which are concentric with the internally threaded hollow column are provided on both sides of the top end of the upper sealing cover.

[0008] Preferably, a support plate is fixed to the outer peripheral surface of the upper sealing cover, the outer diameter of the support plate is equal to the inner diameter of the lower cylinder shell, and the top end of the support plate is provided with an arc-shaped hollow portion.

[0009] Preferably, an annular A-shaped skirt is provided at the bottom edge of the T-shaped external thread sealing sleeve, and the lower surface of the A-shaped skirt is in contact with the upper surface of the upper sealing cover.

[0010] Preferably, the upper sealing cover and the lower sealing cover are both made of hard plastic components.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the water purifier with a multi-tube design that can increase the sealing performance of the filter element can effectively reduce the impact and shaking of water flow on the filter element by providing a T-shaped external threaded sealing sleeve and a circular upper concave cavity and other structures that cooperate with each other, and the structural design of threaded connection and secondary positioning with long bolts, so that the filter element body can be firmly fixed inside the upper shell head and the lower cylinder shell, reducing the impact of water flow on the filter element, ensuring the stable operation of the water purifier, and in the process avoiding the generation of gaps at the connection point between the filter element body and the liquid inlet pipe, preventing unfiltered water from directly overflowing from the connection between the liquid inlet pipe and the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the upper shell head of the utility model;

[0015] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the filter element body of the utility model;

[0017] In the figure: 1, upper shell head; 101, circular upper concave cavity; 2, lower cylinder shell; 3, square flange connector; 4, internal thread hollow column; 401, countersunk hole; 402, long bolt; 5, water inlet; 6, liquid inlet pipe; 7, water outlet; 8, filter element body; 801, upper sealing cover; 802, filter screen; 803, lower sealing cover; 804, support plate; 9, T-shaped external thread sealing sleeve; 901, A-type skirt; 10, threaded groove; 11, threaded hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 , the utility model provides an embodiment: a water purifier with a multi-tube design that can increase the sealing performance of the filter element, comprising a plurality of upper shell heads 1 connected in sequence at the head and tail ends, and a lower cylinder shell 2 installed at the bottom end of the upper shell head 1 through a square flange connector 3, a liquid inlet pipe 6 is fixed to one side of the interior of the upper shell head 1, a circular upper concave cavity 101 concentric with the liquid inlet pipe 6 is provided at the bottom end of the upper shell head 1, a T-shaped external thread sealing sleeve 9 is fixed inside the circular upper concave cavity 101, a filter element body 8 is threadedly installed at the bottom end of the T-shaped external thread sealing sleeve 9, the bottom end of the filter element body 8 is abutted against the bottom of the lower cylinder shell 2, both sides of the top end of the upper shell head 1 are fixed with an internal thread hollow column 4, a countersunk hole 401 is provided at the top end of the internal thread hollow column 4, and a long bolt 402 is installed inside the countersunk hole 401, and the bottom end of the long bolt 402 extends to the interior of the lower cylinder shell 2 and cooperates with the top thread of the filter element body 8;

[0020] An inlet 5 and an outlet 7 are respectively arranged on both sides of the interior of the upper shell head 1. One end of the inlet 5 is connected to the top opening of the liquid inlet pipe 6, and the bottom end of the outlet 7 is connected to the lower shell 2. The liquid at the inlet 5 can enter the filter element body 8 through the liquid inlet pipe 6. This part of the water flows into the lower shell 2 after being filtered by the filter element body 8, and continuously flows into the next-level upper shell head 1, the inlet 5, the liquid inlet pipe 6 and the filter element body 8 through the outlet 7, thereby achieving multi-tube and multi-stage filtering functions after secondary and tertiary filtration;

[0021] The filter element body 8 includes an upper sealing cover 801 threadedly mounted on the bottom end of the T-shaped external thread sealing sleeve 9, and a filter screen 802 installed at the bottom edge of the upper sealing cover 801. A lower sealing cover 803 is installed at one end of the filter screen 802 away from the upper sealing cover 801. A thread groove 10 is provided at the top of the upper sealing cover 801. Both the upper sealing cover 801 and the lower sealing cover 803 are made of hard plastic.

[0022] When the filter element body 8 is threadedly connected with the liquid inlet pipe 6, the top end of the upper sealing cover 801 and the bottom end of the T-shaped external thread sealing sleeve 9 are threadedly matched until the upper sealing cover 801 and the T-shaped external thread sealing sleeve 9 are threadedly assembled in place, and the liquid inlet pipe 6 is completely sunk into the filter element body 8;

[0023] Both sides of the top of the upper sealing cover 801 are provided with threaded holes 11 which are concentric with the internal threaded hollow column 4. When the long bolt 402 is screwed into the internal threaded hollow column 4, the threaded bottom end of the long bolt 402 moves downward continuously until it is matched with the threaded hole 11, so that the filter element body 8 is screwed and fixed;

[0024] A support plate 804 is fixed to the outer peripheral surface of the upper sealing cover 801, and the outer diameter of the support plate 804 is equal to the inner diameter of the lower cylinder shell 2. An arc-shaped hollow portion is provided at the top of the support plate 804, and the outer diameter of the support plate 804 is equal to the inner diameter of the lower cylinder shell 2, which can make the filter element body 8 stably installed concentrically with the lower cylinder shell 2, and the arc-shaped hollow portion on the surface of the support plate 804 can be used for the filtered water to flow;

[0025] An annular A-type skirt 901 is provided at the bottom edge of the T-shaped external thread sealing sleeve 9, and the lower surface of the A-type skirt 901 contacts the upper surface of the upper sealing cover 801. After the filter element body 8 and the liquid inlet pipe 6 are assembled in place, the lower surface of the A-type skirt 901 contacts the upper surface of the upper sealing cover 801, and the upper sealing cover 801 is supported by the A-type skirt 901 to reduce the shaking of the upper sealing cover 801, the filter screen 802, the lower sealing cover 803 and other components.

[0026] When the embodiment of the present application is in use, first, the upper shell head 1 and the lower shell 2 are in a separated state, the staff takes out the filter element body 8, and the top opening of the filter element body 8 is concentrically plugged with the liquid inlet pipe 6 until the bottom opening of the liquid inlet pipe 6 enters the interior of the filter element body 8, then the staff continuously screws the filter element body 8 upwards, so that the filter element body 8 and the T-shaped external thread sealing sleeve 9 in the circular upper concave cavity 101 are threadedly matched until the filter element body 8 is assembled in place, then the staff takes out the lower shell 2, so that the lower shell 2 is fitted with the filter element body 8, and the top end of the lower shell 2 and the bottom end of the upper shell head 1 are bolted and sealed through the square flange connector 3, and then the filter element body 8 is installed into the housing, and then the staff puts the long The bolt 402 is screwed into the internally threaded hollow column 4 until the bottom end of the long bolt 402 is threadedly connected to the top end of the filter element body 8. At this time, the top end of the upper shell head 1 forms two support points for limiting the filter element body 8, thereby realizing secondary positioning of the filter element. The structural design of the threaded connection and the secondary positioning of the long bolt 402 can effectively reduce the impact and shaking of the water flow on the filter element, so that the filter element body 8 can be firmly fixed inside the upper shell head 1 and the lower cylinder shell 2, reducing the influence of the water flow on the filter element and ensuring the stable operation of the water purifier. In the process, gaps are avoided at the connection point between the filter element body 8 and the liquid inlet pipe 6, preventing unfiltered water from directly overflowing from the connection between the liquid inlet pipe 6 and the filter element, thereby ensuring the filtering effect of the water purifier.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water purifier with a multi-tube design that can increase the sealing performance of the filter element, characterized in that: The invention comprises a plurality of upper shell heads (1) connected in sequence at their end ends and a lower cylinder shell (2) mounted at the bottom end of the upper shell head (1) via a square flange connector (3); a liquid inlet pipe (6) is fixed to one side of the interior of the upper shell head (1); a circular upper concave cavity (101) which is concentric with the liquid inlet pipe (6) is provided at the bottom end of the upper shell head (1); a T-shaped externally threaded sealing sleeve (9) is fixed inside the circular upper concave cavity (101); the bottom of the T-shaped externally threaded sealing sleeve (9) is A filter element body (8) is installed with an end thread, the bottom end of the filter element body (8) is in contact with the bottom of the lower cylindrical shell (2), and internally threaded hollow columns (4) are fixed on both sides of the top of the upper shell head (1), and a countersunk hole (401) is provided at the top of the internally threaded hollow column (4), and a long bolt (402) is installed inside the countersunk hole (401), and the bottom end of the long bolt (402) extends to the inside of the lower cylindrical shell (2) and cooperates with the top thread of the filter element body (8).

2. A water purifier with a multi-tube design capable of increasing the sealing performance of a filter element according to claim 1, characterized in that: A water inlet (5) and a water outlet (7) are respectively provided on both sides of the interior of the upper shell head (1); one end of the water inlet (5) is connected to the top opening of the liquid inlet pipe (6), and the bottom end of the water outlet (7) is connected to the lower cylinder shell (2).

3. A water purifier with a multi-tube design capable of increasing the sealing performance of a filter element according to claim 1, characterized in that: The filter element body (8) comprises an upper sealing cover (801) threadedly mounted on the bottom end of a T-shaped external thread sealing sleeve (9), and a filter screen (802) mounted at the bottom edge of the upper sealing cover (801); a lower sealing cover (803) is mounted on the end of the filter screen (802) away from the upper sealing cover (801); and a threaded groove (10) is provided at the top end of the upper sealing cover (801).

4. A water purifier with a multi-tube design capable of increasing the sealing performance of a filter element according to claim 3, characterized in that: Both sides of the top of the upper sealing cover (801) are provided with threaded holes (11) which are concentric with the internal thread hollow column (4).

5. A water purifier with a multi-tube design capable of increasing the sealing performance of a filter element according to claim 3, characterized in that: A support disk (804) is fixed to the outer peripheral surface of the upper sealing cover (801); the outer diameter of the support disk (804) is equal to the inner diameter of the lower cylinder shell (2); and an arc-shaped hollow portion is provided at the top end of the support disk (804).

6. A water purifier with a multi-tube design capable of increasing the sealing performance of a filter element according to claim 3, characterized in that: An annular A-shaped skirt (901) is provided at the bottom edge of the T-shaped external thread sealing sleeve (9), and the lower surface of the A-shaped skirt (901) is in contact with the upper surface of the upper sealing cover (801).

7. A water purifier with a multi-tube design capable of increasing the sealing performance of a filter element according to claim 3, characterized in that: The upper sealing cover (801) and the lower sealing cover (803) are both made of hard plastic components.

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