Reverse osmosis water purifier

Abstract

The invention discloses a reverse osmosis water purifier which comprises a shell, a panel covers the front end of the shell, a back plate is arranged at the rear end of the shell, an integrated waterway plate is arranged in the rear end of the shell, a plurality of mounting cavities extending front and back are formed in the shell, openings of the mounting cavities face forwards, the back plate is used for blocking the mounting cavities, and a filter element is rotationally clamped in each mounting cavity; a handle is arranged at the front end of each filter element, a spring extending front and back is mounted at the rear end of each mounting cavity, a fixing ring is fixed at the front end of each spring, a filter element cover is arranged at the rear end of each filter element, and the front ends of the fixing rings are pressed on the filter element covers; a plurality of microswitches are fixed at the front end of the integrated waterway board, buttons are arranged at the front ends of the microswitches, and when the filter element cover of the filter element is screwed in the mounting cavity, the rear end of the filter element cover presses the buttons of the microswitches. According to the invention, more labor is saved when the filter element is taken out.

Description

Technical Field

[0001] The invention relates to a reverse osmosis water purifier. Background Art

[0002] A reverse osmosis water purifier is a device that integrates microfiltration, adsorption, ultrafiltration, reverse osmosis, ultraviolet sterilization, ultrapurification and other technologies to directly convert tap water into ultrapure water. A reverse osmosis water purifier in the prior art has a structure including a shell, a panel covering the front end of the shell, a back plate at the rear end of the shell, a power interface, a faucet connection port, a concentrated water port, a water inlet, a pure water port, and a purified water port. An integrated waterway board is provided in the rear end of the shell, and a mounting cavity extending forward and backward is provided in the shell. The mounting cavity opens forward. After removing the panel, a filter element can be installed in the mounting cavity. The number of filter elements is usually multiple, so as to achieve a better filtering effect. A connector is provided in the front end of the shell, and the rear end of the filter element is connected to the connector by rotating and snapping, and the water outlet at the rear end of the filter element is connected to the connecting pipe on the integrated waterway board. However, the reverse osmosis water purifier of the above technical solution still has the following problems during use: because when installing the filter element, the filter element needs to be rotated, and after the filter element and the connecting piece are clamped, the water outlet at the rear end of the filter element will be firmly connected to the connecting pipe on the integrated water circuit board. However, in the actual installation process, the filter element may not be clamped. If this happens, it is easy to cause the water outlet at the rear end of the filter element and the connecting pipe on the integrated water circuit board to not be firmly connected, and the connection is prone to water leakage; in addition, a small handle is set at the front end of the filter element. When removing the filter element, people can rotate the filter element after pinching the handle, which is useful for moving the filter element out of the installation cavity. However, the weight of the filter element is heavy. For some users with less strength, it is still quite difficult to pull the filter element forward by simply pinching the handle. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, an object of the present invention is to provide a reverse osmosis water purifier.

[0004] The technical solution of the present invention is: a reverse osmosis water purifier includes a shell, a front end of the shell is covered with a panel, a rear end of the shell is provided with a back plate, an integrated water circuit board is provided in the rear end of the shell, a plurality of installation cavities extending forward and backward are provided in the shell, the installation cavity opens to the front, the back plate is used to block the installation cavity, a filter element is rotatably clamped in each installation cavity, the front end of each filter element is provided with a handle, a spring extending forward and backward is installed at the rear end of each installation cavity, a fixing ring is fixed at the front end of each spring, a filter element cover is provided at the rear end of the filter element, and the front end of the fixing ring is pressed on the filter element cover; a plurality of micro switches are fixed at the front end of the integrated water circuit board, and a button is provided at the front end of the micro switch. When the filter element cover of the filter element is screwed tightly in the installation cavity, the rear end of the filter element cover presses the button of the micro switch.

[0005] Furthermore, the rear end of the spring is fixed to the front end of the integrated waterway plate. When the filter element cover is tightened in the installation cavity, the spring is compressed. When the filter element cover is unscrewed in the installation cavity, the spring applies elastic force to the fixing ring, and the fixing ring pushes the filter element forward.

[0006] Furthermore, the rear end of the filter element cover has a ring-shaped groove extending forward and backward, the groove opening faces backward, the fixing ring and the spring extend into the groove, and the fixing ring is pressed on the front end surface of the groove.

[0007] Furthermore, the button at the front end of the micro switch contacts the outer edge of the rear end of the filter element cover.

[0008] Furthermore, there are two micro switches in each installation cavity, and the two micro switches are respectively in contact with the upper and lower sides of the rear end outer edge of the filter element cover.

[0009] The reverse osmosis water purifier provided by the present invention has the following beneficial effects: when the filter element cover is unscrewed in the installation cavity, the spring applies elastic force to the fixing ring, and the fixing ring pushes the filter element forward, so the filter element will be pushed forward a certain distance. At this time, people can hold the front end of the filter element to pull out the filter element, which saves effort; when the filter element cover of the filter element is not tightened in the installation cavity, the rear end of the filter element cover cannot press the button of the micro switch. At this time, the reverse osmosis water purifier is powered off and will not work, thereby reminding people that the filter element is not installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Another overall structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention after removing the panel; Figure 4 This is a schematic diagram of the structure of the present invention after removing the panel and the filter element; Figure 5 It is a cross-sectional schematic diagram of the present invention; Figure 6 for Figure 5 A magnified schematic diagram of area A in the middle.

[0011] As shown in the figure: 1 - housing, 11 - installation cavity, 2 - panel, 3 - back plate, 4 - integrated waterway plate, 5 - filter element, 51 - handle, 52 - filter element cover, 521 - groove, 6 - spring, 7 - fixing ring, 8 - micro switch, 81 - button. Implementation

[0012] In order to more intuitively and completely understand the technical solution of the present invention, a non-limiting feature description is now provided in conjunction with the accompanying drawings of the present invention as follows: like Figure 1 — Figure 6 As shown, the reverse osmosis water purifier includes a shell 1, the front end of the shell 1 is covered with a panel 2, the rear end of the shell 1 is provided with a back plate 3, the rear end of the shell 1 is provided with an integrated waterway plate 4, and the shell 1 is provided with a plurality of installation cavities 11 extending forward and backward. The installation cavity 11 opens forward, and the back plate 3 is used to block the installation cavity 11. A filter element 5 is rotatably clamped in each installation cavity 11, and each filter element 5 has a handle 51 at the front end. A spring 6 extending forward and backward is installed at the rear end of each installation cavity 11, and a fixing ring 7 is fixed at the front end of each spring 6. The rear end of the filter element 5 has a filter element cover 52, and the front end of the fixing ring 7 is pressed on the filter element cover 52; a plurality of micro switches 8 are fixed at the front end of the integrated waterway plate 4, and the front end of the micro switch 8 has a button 81. When the filter element cover 52 of the filter element 5 is screwed into the installation cavity 11, the rear end of the filter element cover 52 presses the button 81 of the micro switch 8.

[0013] like Figure 6 As shown, the rear end of the spring 6 is fixed to the front end of the integrated waterway plate 4. When the filter element cover 52 is tightened in the installation cavity 11, the spring 6 is compressed. When the filter element cover 52 is unscrewed in the installation cavity 11, the spring 6 applies elastic force to the fixing ring 7, and the fixing ring 7 pushes the filter element 5 forward, and the filter element 5 will be pushed forward a certain distance.

[0014] like Figure 6 As shown, the rear end of the filter element cover 52 has a ring-shaped groove 521 extending forward and backward, the groove 521 opens toward the rear, the fixing ring 7 and the spring 6 extend into the groove 521, and the fixing ring 7 is pressed on the front end surface of the groove 521.

[0015] like Figure 6 As shown, the button 81 at the front end of the micro switch 8 contacts the outer edge of the rear end of the filter cover 52. There are two micro switches 8 in each installation cavity 11, and the two micro switches 8 contact the upper and lower sides of the outer edge of the rear end of the filter cover 52 respectively. Because the filter 5 may be twisted during installation, if it is twisted, the upper and lower sides of the rear end of the filter cover 52 are one high and one low, so as long as one micro switch 8 is not pressed, the reverse osmosis water purifier is still in the power-off state.

[0016] Of course, a circuit board (not shown) is installed in the reverse osmosis water purifier, and the micro switch 8 is electrically connected to the circuit board.

[0017] When the filter element cover 52 is unscrewed in the installation cavity 11, the spring 6 applies elastic force to the fixing ring 7, and the fixing ring 7 pushes the filter element 5 forward, so that the filter element 5 will be pushed forward a certain distance. At this time, people can hold the front end of the filter element 5 to pull out the filter element 5, which has the effect of saving effort; when the filter element cover 52 of the filter element 5 is not tightened in the installation cavity 11, the rear end of the filter element cover 52 cannot press the button 81 of the micro switch 8. At this time, the reverse osmosis water purifier is powered off and will not work, thereby reminding people that the filter element 5 is not installed in place.

[0018] Of course, the above are only preferred embodiments of the present invention, and the patent scope of the present invention is not limited thereto. All simple modifications and equivalent structural changes made using the contents of the specification and drawings of the present invention should be included in the patent protection scope of the present invention.

Claims

1. A reverse osmosis water purifier, comprising a housing, a front end of the housing having a panel, a rear end of the housing having a back plate, an integrated waterway plate in the rear end of the housing, a plurality of installation cavities extending forward and backward in the housing, the installation cavities opening forward, the back plate used to block the installation cavities, a filter element rotatably connected in each installation cavity, and a handle in the front end of each filter element, characterized in that: A spring extending forward and backward is installed at the rear end of each installation cavity, a fixing ring is fixed at the front end of each spring, a filter element cover is provided at the rear end of the filter element, and the front end of the fixing ring is pressed on the filter element cover; a plurality of micro switches are fixed at the front end of the integrated waterway plate, and a button is provided at the front end of the micro switch. When the filter element cover of the filter element is tightened in the installation cavity, the rear end of the filter element cover presses the button of the micro switch.

2. The reverse osmosis water purifier according to claim 1, characterized in that: The rear end of the spring is fixed to the front end of the integrated waterway plate. When the filter element cover is tightened in the installation cavity, the spring is compressed. When the filter element cover is unscrewed in the installation cavity, the spring applies elastic force to the fixing ring, and the fixing ring pushes the filter element forward.

3. The reverse osmosis water purifier according to claim 1, characterized in that: The rear end of the filter element cover is provided with a ring-shaped groove extending forward and backward, the opening of the groove faces backward, the fixing ring and the spring extend into the groove, and the fixing ring is pressed on the front end surface of the groove.

4. The reverse osmosis water purifier according to claim 1, characterized in that: The button at the front end of the micro switch contacts the outer edge of the rear end of the filter element cover.

5. The reverse osmosis water purifier according to claim 4, characterized in that: There are two micro switches in each installation cavity, and the two micro switches are respectively in contact with the upper and lower sides of the outer edge of the rear end of the filter element cover.

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