Filter element for controlling waste water switch through pure water pressure

Abstract

The utility model discloses a filter element for controlling a waste water switch through pure water pressure, which comprises a barrel-shaped shell, a raw water inlet pipe and a pure water outlet pipe are arranged at the upper end of the shell, a waste water outlet pipe is arranged at the lower part of the shell, a reverse osmosis filter material is arranged in the shell, a pure water channel is arranged in the middle of the reverse osmosis filter material along the length direction in a penetrating manner, and the pure water channel is communicated with the waste water outlet pipe. The upper end of the pure water channel is communicated with the pure water outlet pipe, a switch valve assembly is arranged between the lower end of the pure water channel and the input end of the wastewater outlet pipe, and the switch valve assembly can move according to the hydraulic pressure difference between the pure water channel and the wastewater outlet pipe to close or open the input end of the wastewater outlet pipe. When the faucet connected with the pure water outlet pipe is closed, the pressure of the pure water rises to be consistent with the pressure of the waste water within a short period of time, the waste water continues to flow away to enable the pressure of the waste water to be smaller than the pressure of the pure water, the input end of the waste water outlet pipe is closed through the switch valve assembly, and therefore waste of water resources can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field especially through pure water pressure control waste water switch's filter core. BACKGROUND

[0002] At present, the waterway switch control valve of the existing reverse osmosis filter machine without electromagnetic valve is installed on the head of the filter, which results in great difficulty and high cost in upgrading the old machine, and they usually control the switch of the water inlet waterway through the pure water waterway, so that after the pure water waterway is disconnected, the waste water waterway will still leak for a long time, which will further increase the waste of water resources. SUMMARY

[0003] The utility model discloses at least solve one of the technical problems in the prior art. To this end, the utility model provides a filter core through pure water pressure control waste water switch, can reduce the waste of water resources, and the filter core can be used to transform and upgrade the ordinary water purifier into a reverse osmosis filtration water purifier in a low-difficulty and low-cost manner.

[0004] The filter core through pure water pressure control waste water switch according to the utility model embodiment comprises a shell in the shape of a barrel, a raw water inlet pipe and a pure water outlet pipe are arranged at the upper end of the shell, a waste water outlet pipe is arranged at the lower part of the shell, a reverse osmosis filter material is arranged in the shell, the reverse osmosis filter material divides the internal space of the shell into an upper area connected with the raw water inlet pipe and the pure water outlet pipe and a lower area connected with the waste water outlet pipe, a pure water channel is arranged through the middle part of the reverse osmosis filter material along the length direction, the upper end of the pure water channel is connected with the pure water outlet pipe, and a switch valve assembly is arranged between the lower end of the pure water channel and the input end of the waste water outlet pipe, the switch valve assembly can move according to the hydraulic pressure difference between the pure water channel and the waste water outlet pipe to close or open the input end of the waste water outlet pipe.

[0005] The filter core through pure water pressure control waste water switch according to the utility model embodiment has at least the following beneficial effects:

[0006] When the filter core with the above structure is in normal operation, the water faucet connected with the pure water outlet pipe is opened, the raw water pressure and the waste water pressure are both greater than the pure water pressure, the switch valve assembly opens the input end of the waste water outlet pipe, and the waste water can flow away smoothly; when the water faucet connected with the pure water outlet pipe is closed, the pure water pressure gradually rises to be consistent with the raw water pressure and the waste water pressure within a short period of time, at this time, the waste water continues to flow away, so that the waste water pressure is less than the pure water pressure, the switch valve assembly closes the input end of the waste water outlet pipe, thereby reducing the waste of water resources, and the filter core can be used to transform and upgrade the ordinary water purifier into a reverse osmosis filtration water purifier in a low-difficulty and low-cost manner.

[0007] In some embodiments of the utility model, the lower area is equipped with the mounting base between the lower end of pure water channel and the input end of waste water outlet pipe, the switch valve assembly includes the first valve piece, second valve piece and valve core that are arranged between the first valve piece and the second valve piece of mounting base, the first valve piece is opposite to the lower end of pure water channel and closes pure water channel, the second valve piece is abutted to the input end of waste water outlet pipe, the valve core can move upward to make the second valve piece open waste water outlet pipe or move downward to make the second valve piece close waste water outlet pipe.

[0008] In some embodiments of the utility model, the reverse osmosis filter material is provided with a first plug-in pipe at the lower end of the pure water channel, the mounting base includes a valve cover sleeved on the outside of the first plug-in pipe and a valve seat fixedly arranged on the shell and connected with the valve cover, and the valve seat and the valve cover define a mounting space for accommodating the first valve piece, the second valve piece and the valve core.

[0009] In some embodiments of the utility model, the middle part of the valve cover is provided with a first channel penetrating upward and downward, the upper end of the first channel is connected with the lower end of the pure water channel, the valve cover is provided with a flared groove at the lower end of the first channel, the input end of the waste water outlet pipe is a vertical pipe part fixedly arranged on the valve seat, the valve seat has a support ring arranged around the vertical pipe part, the outer peripheral wall of the support ring is provided with a plurality of drainage gap grooves in communication with the lower area, the second valve piece abuts against the upper end face of the support ring and seals the vertical pipe part, the valve cover and the second valve piece are clamped with a valve sleeve for lifting sliding of the valve core, and the first valve piece is clamped between the valve sleeve and the valve cover and seals the end face of the flared groove.

[0010] In some embodiments of the utility model, the middle part of the valve sleeve is provided with a guide channel, the valve core has a guide column matched with the guide channel, the upper end of the guide column is provided with a limiting plate protruding in the radial direction thereof, and the second valve piece pushes the limiting plate upward to make a part of the first valve piece extend into the flared groove, thereby opening the port of the vertical pipe part.

[0011] In some embodiments of the utility model, the valve sleeve is provided with a first sealing ring tightly matched with the first valve piece and a second sealing ring tightly matched with the second valve piece.

[0012] In some embodiments of the utility model, the upper end edge of the support ring is mounted with a soft rubber gasket ring, the radial dimension of the soft rubber gasket ring is greater than the radial dimension of the support ring, and the second valve piece abuts against the upper surface of the soft rubber gasket ring downward.

[0013] In some embodiments of the present invention, the valve cover is connected to the valve seat by a plurality of fastening bolts arranged at intervals in the circumferential direction.

[0014] In some embodiments of the present invention, the housing includes a lower cover and a cylinder detachably connected to the lower cover, and the reverse osmosis filter material is detachably installed on the cylinder.

[0015] In some embodiments of the present invention, the lower cover is connected to the cylinder through a threaded connection, and a waterproof sealing ring is provided between the lower cover and the cylinder.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the appearance of an embodiment of a filter element for controlling a wastewater switch by pure water pressure according to the present invention;

[0019] Figure 2 for Figure 1 A schematic cross-sectional view of an embodiment;

[0020] Figure 3 for Figure 2 A local enlarged schematic diagram in FIG.

[0021] Figure 4 Schematic diagram of the structure of an embodiment of the lower cover.

[0022] Reference numerals:

[0023] Shell 100; lower cover 101; cylinder 102; raw water inlet pipe 110; pure water outlet pipe 120; waste water outlet pipe 130; reverse osmosis filter material 200; pure water channel 210; first plug-in tube 220; switch valve assembly 300; first valve disc 310; second valve disc 320; valve core 330; guide column 331; limit plate 332; mounting seat 400; valve cover 410; first channel 411; flaring groove 412; valve seat 420; support ring 421; drainage gap groove 422; valve sleeve 430; guide channel 431; first sealing ring 432; second sealing ring 433; soft rubber gasket 500; fastening bolt 600. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, are for the purpose of explanation only and are not to be construed as limiting the present application.

[0025] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0027] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Referring to Figures 1 to 4The utility model discloses a filter core of wastewater switch is controlled through pure water pressure, include: the shell 100 of round tub shape, the upper end of shell 100 is equipped with raw water inlet pipe 110 and pure water outlet pipe 120, the lower part of shell 100 is equipped with wastewater outlet pipe 130, the inside installation of shell 100 is equipped with reverse osmosis filter material 200, the inside space of shell 100 is divided into the upper area of communication with raw water inlet pipe 110 and pure water outlet pipe 120 and the lower area of communication with wastewater outlet pipe 130 with reverse osmosis filter material 200, the middle part of reverse osmosis filter material 200 is equipped with pure water channel 210 along its length direction and is passed through, the upper end of pure water channel 210 is communicated pure water outlet pipe 120, and the lower end of pure water channel 210 is equipped with switch valve assembly 300 between the input end of wastewater outlet pipe 130, and switch valve assembly 300 can move according to the hydraulic pressure difference of pure water channel 210 and wastewater outlet pipe 130 to close or open the input end of wastewater outlet pipe 130.

[0029] The filter core of the above structure is opened when normal work, and the water tap of connecting pure water outlet pipe 120 is opened, and the raw water pressure and wastewater pressure are consistent, and the wastewater pressure is greater than pure water pressure to make switch valve assembly 300 open the input end of wastewater outlet pipe 130, and the wastewater can flow away smoothly, when the water tap of connecting pure water outlet pipe 120 is closed, in a short period of time, pure water pressure gradually rises to be consistent with raw water pressure and wastewater pressure, when wastewater keeps the movement tendency of continuing to flow away, thereby making wastewater pressure less than pure water pressure, and switch valve assembly 300 can close the input end of wastewater outlet pipe 130, thereby can reduce the waste of water resources, and the filter core can be used to transform and upgrade ordinary water purifier to reverse osmosis filtration water purifier with low difficulty and low cost, and the head part does not need to be transformed.

[0030] Referring to Figure 2 And Figure 3In some embodiments of the utility model, the lower area is equipped with the mounting seat 400 between the lower end of pure water channel 210 and the input end of waste water outlet pipe 130, the switch valve assembly 300 includes the first valve piece 310, second valve piece 320 and valve core 330 that are equipped on the mounting seat 400, the first valve piece 310 is opposite the lower end of pure water channel 210 and closes pure water channel 210, the second valve piece 320 is abutted to the input end of waste water outlet pipe 130, the valve core 330 can be moved upwards to make the second valve piece 320 open waste water outlet pipe 130 or downwards to make the second valve piece 320 close waste water outlet pipe 130. It can be understood that when the filter core normally works, waste water pressure is greater than pure water pressure, and the second valve piece 320 can push the valve core 330 towards the direction of the first valve piece 310, thereby opening the input end of waste water outlet pipe 130, and the waste water in the lower area can be discharged outward through the input end of waste water outlet pipe 130, when the water tap connected with pure water outlet pipe 120 is closed, in a short period of time, pure water pressure gradually rises to be consistent with waste water pressure, at this time, waste water keeps the trend of continuing to flow, so that waste water pressure is less than pure water pressure, and the first valve piece 310 can push the valve core 330 towards the direction of the second valve piece 320, thereby closing the input end of waste water outlet pipe 130, avoiding the waste of water resources.

[0031] Referring to Figure 2 and Figure 3 In some embodiments of the utility model, in order to facilitate the connection between reverse osmosis filter material 200 and switch valve assembly 300, the first plug pipe 220 is arranged at the lower end of pure water channel 210, in order to facilitate the assembly of switch valve assembly 300, the mounting seat 400 includes valve cover 410 and valve seat 420, the valve cover 410 is arranged on the outside of the first plug pipe 220, and the valve seat 420 is fixedly arranged on the shell 100 and connected with the valve cover 410, and the mounting space for accommodating the first valve piece 310, the second valve piece 320 and the valve core 330 is defined between the valve seat 420 and the valve cover 410.

[0032] Referring to Figure 3 and Figure 4In some embodiments of the present invention, a first channel 411 is provided in the middle of the valve cover 410, which passes through the middle portion up and down. The upper end of the first channel 411 is connected to the lower end of the pure water channel 210. The valve cover 410 is provided with a flared groove 412 at the lower end of the first channel 411. The input end of the wastewater outlet pipe 130 is a vertical pipe portion fixed to the valve seat 420. The valve seat 420 has a support ring 421 arranged around the vertical pipe portion. The outer peripheral wall of the support ring 421 is provided with a plurality of drainage gap grooves 422 connected to the lower area. The second valve disc 320 abuts against the upper end surface of the support ring 421 and seals the vertical pipe portion. A valve sleeve 430 is sandwiched between the valve cover 410 and the second valve disc 320 for the valve core 330 to rise and slide. The first valve disc 310 is sandwiched between the valve sleeve 430 and the valve cover 410 and seals the end surface of the flared groove 412. The above structure only requires connecting and fixing the valve cover 410 and the valve seat 420 to position and fix the first valve disc 310, the second valve disc 320, the valve sleeve 430, and the valve core 330. The structure is very simple and does not require a large number of fasteners. When the faucet connected to the pure water outlet pipe 120 is turned on, raw water enters the upper area through the outer peripheral wall of the reverse osmosis filter material 200 and enters the reverse osmosis filter material 200, forming pure water entering the pure water channel 210 and waste water entering the lower area. The waste water passes through the drainage gap groove 422 and enters the interior of the support ring 421, thereby pushing up the second valve disc 320. The second valve disc 320 drives the valve core 330 to slide upward along the valve sleeve 430, and the middle portion of the first valve disc 310 can then undergo elastic deformation to enter the flared groove 412. Specifically, the valve seat 420 also has an outer ring wall plate that is concentric with the support ring 421 and located outside the support ring 421. A plurality of drainage gap grooves 422 are evenly distributed circumferentially around the center line of the vertical pipe portion. The outer ring wall plate is provided with drainage through-hole grooves corresponding to each drainage gap groove 422 one by one. In addition, the wastewater in the lower area passes through the drainage through-hole grooves and the drainage gap grooves 422 in sequence from all directions and then converges into the vertical pipe portion, thereby improving the wastewater discharge efficiency, reducing the turbulence of the wastewater, and ensuring the filtering performance of the filter element.

[0033] See also Figure 3In some embodiments of the utility model, the middle part of valve sleeve 430 is equipped with guide channel 431, valve core 330 has guide column 331 which is matched with guide channel 431, the upper end of guide column 331 is equipped with limiting plate 332 which protrudes along its radial direction, second valve piece 320 pushes limiting plate 332 upwards to make a part of first valve piece 310 extend into flared groove 412, and then open the port of standpipe part, flared groove 412 provides accommodation space for the elastic deformation of first valve piece 310. It can be understood that when the faucet connected with pure water outlet pipe 120 is closed, in a short period of time, pure water pressure gradually rises to be consistent with waste water pressure, at this time, waste water keeps the movement trend of continuing to flow away, so that waste water pressure is less than pure water pressure, first valve piece 310 can push valve core 330 towards the direction of second valve piece 320, and limiting plate 332 can abut against the upper end of guide channel 431 to limit the movement stroke of valve core 330.

[0034] Referring to Figure 3 In some embodiments of the utility model, in order to improve the sealing effect, avoid liquid leakage and affect the normal work of switch valve assembly 300 and cause the pollution of pure water, valve sleeve 430 is equipped with a first sealing ring 432 which is tightly matched with first valve piece 310 and a second sealing ring 433 which is tightly matched with second valve piece 320.

[0035] Referring to Figure 2 And Figure 3 In some embodiments of the utility model, the upper end edge of support ring 421 is installed with a soft rubber gasket 500, the radial dimension of soft rubber gasket 500 is greater than the radial dimension of support ring 421, and second valve piece 320 abuts against the upper surface of soft rubber gasket 500. It should be noted that because a plurality of drainage gap grooves 422 are circumferentially and spacedly arranged on support ring 421, second valve piece 320 cannot be fully and stably supported when directly abutting against the upper end edge of support ring 421, and the arrangement of soft rubber gasket 500 can solve this problem, and the contact area is larger and the supporting effect is better.

[0036] Referring to Figure 2 In some embodiments of the utility model, in order to facilitate the assembly or replacement of switch valve assembly 300, valve cover 410 is connected to valve seat 420 through a plurality of fastening bolts 600 which are circumferentially and spacedly arranged.

[0037] Referring to Figure 1 And Figure 2In some embodiments of the utility model, the shell 100 includes the lower cover 101 and the cylinder 102 which is detachably connected to the lower cover 101, and the reverse osmosis filter material 200 is detachably installed on the cylinder 102. The reverse osmosis filter material 200 can be replaced after the cylinder 102 and the lower cover 101 are separated, avoiding the waste of the shell 100 and the switch valve assembly 300 caused by the integral replacement of the filter core. In the embodiment, the lower cover 101 is connected to the cylinder 102 through threads, and a waterproof sealing ring is arranged between the lower cover 101 and the cylinder 102.

[0038] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that the combinations are within the scope of the present application.

[0039] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A filter cartridge for controlling a wastewater switch by pure water pressure, characterized by, The application relates to a filter core for controlling the opening and closing of waste water by pure water pressure.

2. The filter core for controlling the opening and closing of waste water by pure water pressure according to claim 1, wherein the lower area is provided with a mounting seat (400) between the lower end of the pure water channel (210) and the input end of the waste water outlet pipe (130), the switch valve assembly (300) comprises a first valve plate (310), a second valve plate (320) and a valve core (330) clamped between the first valve plate (310) and the second valve plate (320), the first valve plate (310) is opposite to the lower end of the pure water channel (210) and closes the pure water channel (210), the second valve plate (320) abuts against the input end of the waste water outlet pipe (130), and the valve core (330) can be moved upward to make the second valve plate (320) open the waste water outlet pipe (130) or be moved downward to make the second valve plate (320) close the waste water outlet pipe (130).

3. The filter core for controlling the opening and closing of waste water by pure water pressure according to claim 2, wherein the reverse osmosis filter material (200) is provided with a first plug pipe (220) protruding at the lower end of the pure water channel (210), the mounting seat (400) comprises a valve cover (410) sleeved on the outside of the first plug pipe (220) and a valve seat (420) fixed to the shell (100) and connected with the valve cover (410), and the valve seat (420) and the valve cover (410) define a mounting space for accommodating the first valve plate (310), the second valve plate (320) and the valve core (330).

4. The filter core for controlling the opening and closing of waste water by pure water pressure according to claim 3, wherein ​ ​ ​ The middle part of the valve cover (410) is provided with a first channel (411) penetrating up and down, the upper end of the first channel (411) is connected with the lower end of the pure water channel (210), the lower end of the first channel (411) of the valve cover (410) is provided with a flared groove (412), the input end of the wastewater outlet pipe (130) is a vertical pipe part fixedly arranged on the valve seat (420), the valve seat (420) is provided with a support ring (421) surrounding the vertical pipe part, the outer peripheral wall of the support ring (421) is provided with a plurality of drainage gap grooves (422) communicated with the lower area, the second valve plate (320) abuts against the upper end surface of the support ring (421) and seals the vertical pipe part, the valve cover (410) and the second valve plate (320) are clamped with the valve sleeve (430) for lifting and sliding of the valve core (330), and the first valve plate (310) is clamped between the valve sleeve (430) and the valve cover (410) and seals the end surface of the flared groove (412).

5. The filter element of claim 4, wherein: The middle part of the valve cover (410) is provided with a first channel (411) penetrating up and down, the upper end of the first channel (411) is connected with the lower end of the pure water channel (210), the lower end of the first channel (411) of the valve cover (410) is provided with a flared groove (412), the input end of the wastewater outlet pipe (130) is a vertical pipe part fixedly arranged on the valve seat (420), the valve seat (420) is provided with a support ring (421) surrounding the vertical pipe part, the outer peripheral wall of the support ring (421) is provided with a plurality of drainage gap grooves (422) communicated with the lower area, the second valve plate (320) abuts against the upper end surface of the support ring (421) and seals the vertical pipe part, the valve cover (410) and the second valve plate (320) are clamped with the valve sleeve (430) for lifting and sliding of the valve core (330), and the first valve plate (310) is clamped between the valve sleeve (430) and the valve cover (410) and seals the end surface of the flared groove (412).

6. The filter element of claim 4, wherein: The valve sleeve (430) is provided with a first sealing ring (432) matched with the first valve plate (310) and a second sealing ring (433) matched with the second valve plate (320).

7. The filter element of claim 4, wherein: The upper end edge of the support ring (421) is provided with a soft rubber gasket (500), the radial dimension of the soft rubber gasket (500) is larger than the radial dimension of the support ring (421), and the second valve plate (320) abuts against the upper surface of the soft rubber gasket (500).

8. The filter element of claim 3, wherein: The valve cover (410) is connected with the valve seat (420) through a plurality of fastening bolts (600) arranged at intervals in the circumferential direction.

9. The filter element of claim 1, wherein: The shell (100) comprises a lower cover (101) and a cylinder body (102) detachably connected with the lower cover (101), and the reverse osmosis filter material (200) is detachably arranged in the cylinder body (102).

10. The filter element of claim 9, wherein: The lower cover (101) is connected with the barrel (102) through thread, and a waterproof sealing ring is arranged between the lower cover (101) and the barrel (102).

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