RO pump with flexible filter assembly

Abstract

The utility model relates to an RO (reverse osmosis) pump with a flexible filter component, which belongs to the field of booster pumps of water purifiers and comprises an RO pump head and a driving motor for driving the RO pump head to operate. The RO pump head is provided with a water inlet chamber; the RO pump head is provided with a mounting hole communicated with the water inlet chamber and a water inlet joint detachably mounted at the mounting hole; the RO pump head is also provided with a flexible filter assembly; the flexible filter assembly comprises a flexible filter bag and a mounting pipe mounted at a bag opening of the flexible filter bag; and the RO pump head is provided with an arrangement groove for mounting the mounting pipe on the bottom surface of the mounting hole. The RO pump has the advantages that the problem that the pressurizing water conveying capacity of the RO pump is easily weakened due to the fact that the filter assembly is arranged in the RO pump is solved, and the output stability of the RO pump in the running process can be kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water purifier booster pumps, in particular to an RO pump with a flexible filtering assembly. BACKGROUND

[0002] The RO pump (reverse osmosis booster pump) is the core power component of the reverse osmosis water purification equipment, which is responsible for providing stable working pressure for the RO membrane to ensure the efficient performance of the reverse osmosis process.

[0003] The Chinese utility model patent with the authorized publication number CN204200568U discloses an RO pump with a filter plate, which comprises an end cover plate, the end cover plate comprises a water inlet channel and a cavity, the water inlet channel is in communication with the cavity, the inner side wall of the water inlet channel is provided with a filter plate, the filter plate axially slides in the water inlet channel, an elastic member is arranged between the filter plate and the water inlet channel, one end of the elastic member is connected with the filter plate, and the other end of the elastic member is connected with the water inlet end of the water inlet channel.

[0004] According to the related technology in the above, the inventor believes that the filtering area of the filter plate in the RO pump with the filter plate is too small, and the filter plate is prone to be blocked during long-term use, which affects the normal booster water delivery function of the RO pump. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the problem that the setting of the filtering assembly in the RO pump easily leads to the weakening of the booster water delivery capacity of the RO pump, the present application provides an RO pump with a flexible filtering assembly.

[0006] The present application provides an RO pump with a flexible filtering assembly, which adopts the following technical scheme:

[0007] The RO pump with a flexible filtering assembly comprises an RO pump head and a driving motor for driving the RO pump head to run, the RO pump head has a water inlet chamber, the RO pump head has a mounting hole in communication with the water inlet chamber and a water inlet connector which is detachably mounted at the mounting hole, the RO pump head is further provided with a flexible filtering assembly, the flexible filtering assembly comprises a flexible filtering bag and a mounting pipe mounted at the bag opening of the flexible filtering bag, and the RO pump head is provided with a layout groove at the bottom surface of the mounting hole for mounting the mounting pipe.

[0008] By adopting the above technical scheme, when the RO pump with the flexible filtering assembly starts to run, water enters the flexible filtering assembly through the water inlet connector and enters the water inlet chamber after being filtered by the flexible filtering bag. Compared with the traditional design of the filter plate, the filtering area of the flexible filtering bag is larger, which reduces the probability of water outlet difficulty caused by the blockage of the flexible filtering bag, and improves the problem that the setting of the filtering assembly in the RO pump easily leads to the weakening of the booster water delivery capacity of the RO pump.

[0009] The water inlet joint is detachably installed at the installation hole of the RO pump, and the flexible filtering assembly is installed at the arrangement hole on the inner side of the installation hole, so that the flexible filtering assembly can be conveniently cleaned by detaching the water inlet joint and the flexible filtering assembly from the RO pump head. Since the filtered garbage is located in the flexible filtering bag, the probability of the filtered garbage entering the water inlet chamber of the RO pump during the detaching process is low.

[0010] Optionally, the installation pipe comprises a first pipe portion arranged in the arrangement groove and a second pipe portion connected to the first pipe portion and used for installing the flexible filtering bag, an outer diameter of the first pipe portion is greater than an outer diameter of the second pipe portion, and end portions of the second pipe portion are circumferentially spaced apart and provided with sewing holes used for sewing and fixing the flexible filtering bag.

[0011] By adopting the above technical solution, the specific structure of the installation pipe is disclosed, and the first pipe portion is installed in the arrangement groove, and the second pipe portion is used for installing the flexible filtering bag, so that the installation of the flexible filtering bag on the installation pipe does not affect the installation of the installation pipe in the arrangement hole.

[0012] Optionally, the flexible filtering bag comprises a main pipe portion sewn with the second pipe portion and an arc-shaped filtering portion connected to the main pipe portion and arranged in the water inlet chamber.

[0013] By adopting the above technical solution, the specific structure of the flexible filtering bag is disclosed, and the flexible filtering bag is provided with the main pipe portion and the arc-shaped filtering portion, which helps to ensure the filtering area of the flexible filtering bag and makes the filtering area of the flexible filtering bag more ideal.

[0014] Optionally, an upper support sheet with elasticity is fixed on the upper side of the end portion of the second pipe portion and extends into the arc-shaped filtering portion, an upper support rod with elasticity is fixed on the top surface of the upper support sheet and is adapted to the arc-shaped filtering portion, a lower support sheet with elasticity is fixed on the lower side of the end portion of the second pipe portion and extends into the arc-shaped filtering portion, and a lower support rod with elasticity is fixed on the bottom surface of the lower support sheet and is adapted to the arc-shaped filtering portion.

[0015] By adopting the above technical solution, the arc-shaped filtering portion can be supported by the upper support sheet, the upper support rod, the lower support sheet and the lower support rod, which helps to ensure that the arc-shaped filtering portion has a reasonable filtering area when being arranged in the water inlet chamber. In addition, the upper support sheet, the upper support rod, the lower support sheet and the lower support rod are all elastically arranged, which helps to install the flexible filtering bag into the water inlet chamber.

[0016] Optionally, an upper clamping groove used for clamping and arranging the upper support rod is formed on the top surface of the upper support sheet, and a lower clamping groove used for clamping and arranging the lower support rod is formed on the bottom surface of the lower support sheet.

[0017] By adopting the technical scheme, the mounting structure of the upper support sheet and the upper support rod and the mounting structure of the lower support sheet and the lower support rod are disclosed, both of which adopt the clamping structure to facilitate the assembly of the upper support sheet and the upper support rod and the assembly of the lower support sheet and the lower support rod.

[0018] Optionally, the side wall of the arrangement groove is provided with a limiting protrusion, and the first pipe part is provided with a limiting groove for arranging the limiting protrusion.

[0019] By adopting the technical scheme, the cooperation of the limiting protrusion and the limiting groove makes the installation pipe not rotate in the circumferential direction after being mounted into the arrangement groove, which helps to keep the position of the flexible filter bag in the water inlet chamber.

[0020] Optionally, the number of the limiting protrusions is two and the limiting protrusions are arranged in the circumferential direction symmetrically; and the limiting grooves in the first pipe part correspond to the limiting protrusions one by one.

[0021] By adopting the technical scheme, the arrangement of the two groups of limiting protrusions and limiting grooves can further guarantee the circumferential locking of the installation pipe and the arrangement hole, further guarantee that the installation pipe will not rotate in the circumferential direction after being mounted into the arrangement groove, and help to keep the position of the flexible filter bag in the water inlet chamber.

[0022] Optionally, the installation hole is provided with an internal thread, the water inlet connector includes an outer pipe part located outside the RO pump head, a threaded part matched with the internal thread, and a sealing part inserted into the first pipe part; the sealing part is provided with a first ring groove in the circumferential direction and a first sealing ring matched with the inner wall of the first pipe part at the first ring groove.

[0023] By adopting the technical scheme, the connection relationship between the water inlet connector and the installation hole is disclosed, the threaded part of the water inlet connector and the installation hole are matched through threads, so that the assembly of the water inlet connector and the installation hole is more convenient, and the connection strength is higher. The sealing part and the installation pipe are matched through the first sealing ring, which guarantees the connection sealing property between the water inlet connector and the installation pipe.

[0024] Optionally, the first pipe part is provided with a second ring groove in the circumferential direction at one end connected with the second pipe part and a second sealing ring matched with the inner wall of the arrangement groove at the second ring groove.

[0025] By adopting the technical scheme, the sealing and matching connection between the installation pipe and the arrangement groove is disclosed, which helps to reduce the probability of water leakage in the water inlet chamber through the gap between the arrangement groove and the installation pipe.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. A RO pump with a flexible filtering assembly, comprising a flexible filtering bag, the filtering area of the flexible filtering bag is large, which reduces the probability of water outflow difficulty caused by the clogging of the flexible filtering bag, and improves the problem of weakened water boosting capacity of the RO pump caused by the setting of the filtering assembly in the RO pump.

[0028] 2. The setting of the upper support sheet, the upper support rod, the lower support sheet and the lower support rod in the flexible filtering assembly can support the arc-shaped filtering part, which helps to ensure that the arc-shaped filtering part has a relatively reasonable filtering area when it is in the water inlet chamber.

[0029] 3. By setting the limiting convex rib and the limiting groove, the circumferential locking of the mounting pipe and the arrangement hole can be further ensured, and the circumferential rotation of the mounting pipe after being mounted into the arrangement groove can be further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a cross-sectional schematic view of the RO pump with the flexible filtering assembly in the embodiment of the present application.

[0031] Figure 2 is a schematic view of the installation of the flexible filtering assembly at the pump head in the embodiment of the present application.

[0032] Figure 3 is Figure 2 is a local enlarged schematic view of A in

[0033] Figure 4 is a cross-sectional schematic view of the arrangement groove of the pump head shell in the embodiment of the present application.

[0034] Figure 5 is a top view of the flexible filtering assembly in the embodiment of the present application.

[0035] Figure 6 is Figure 2 is a local enlarged schematic view of B in

[0036] Figure 7 is Figure 2 is a local enlarged schematic view of C in

[0037] Explanation of reference signs: 1, RO pump head; 11, pump head shell; 111, annular protrusion; 112, water outlet pipeline; 113, water inlet chamber; 114, water outlet chamber; 115, mounting hole; 116, arrangement groove; 1161, limiting protrusion; 12, chamber support; 121, driving chamber; 122, first one-way diaphragm; 123, second one-way diaphragm; 13, high-pressure diaphragm; 14, eccentric driving member; 15, eccentric bearing; 16, water inlet connector; 161, outer pipe part; 162, threaded part; 163, sealing part; 1631, first sealing ring; 17, water outlet connector; 2, driving motor; 3, flexible filtering assembly; 31, flexible filtering bag; 311, main pipe part; 312, arc-shaped filtering part; 3121, branch pipe structure; 32, mounting pipe; 321, first pipe part; 3211, limiting groove; 3212, second sealing ring; 322, second pipe part; 331, upper support sheet; 3311, upper clamping groove; 332, upper support rod; 333, lower support sheet; 3331, lower clamping groove; 334, lower support rod. DETAILED DESCRIPTION

[0038] The following will be described in detail below with reference to the accompanying drawings. Figures 1-7 The present application will be further described in detail.

[0039] The present application discloses an RO pump with a flexible filtering assembly. Referring to Figure 1 The RO pump with a flexible filtering assembly comprises an RO pump head 1, a driving motor 2 driving the RO pump head 1 to operate, and a flexible filtering assembly 3 mounted on the RO pump head 1. The RO pump head 1 comprises a pump head shell 11, a chamber support 12 mounted on the pump head shell 11, a high-pressure diaphragm 13 mounted on the pump head shell 11 and sealingly matched with the lower end of the chamber support 12, an eccentric driving member 14 connected to the lower side of the high-pressure diaphragm 13, and an eccentric bearing 15 matched with the eccentric driving member 14 and mounted on the output shaft of the driving motor 2.

[0040] Referring to Figure 1 The top of the pump head shell 11 is further provided with an annular protrusion 111 sealingly abutting against the top of the chamber support 12, so that the upper side chamber of the chamber support 12 is divided into a water inlet chamber 113 located outside the annular protrusion 111 and a water outlet chamber 114 located inside the annular protrusion 111. The pump head shell 11 is further provided with a water inlet connector 16 communicating with the water inlet chamber 113 and a water outlet connector 17 communicating with the water outlet chamber 114. The pump head shell 11 is further provided with a water outlet pipeline 112 communicating the water outlet chamber 114 and the water outlet connector 17, so that the water inlet chamber 113 is cut off by the water outlet pipeline 112 to form an arc-shaped chamber.

[0041] Referring to Figure 1The lower end of the chamber support 12 is sealed against the high-pressure diaphragm 13, and a driving chamber 121 is formed in the bottom of the chamber support 12. The top of the chamber support 12 is provided with a first through hole communicating the driving chamber 121 and the water inlet chamber 113, and is further provided with a first one-way diaphragm 122, so that water can only enter the driving chamber 121 from the water inlet chamber 113 in one direction. The top of the chamber support 12 is further provided with a second through hole communicating the driving chamber 121 and the water outlet chamber 114, and is further provided with a second one-way diaphragm 123, so that water can only enter the water inlet chamber 113 from the driving chamber 121 in one direction.

[0042] With reference to Figure 2 and Figure 3 The pump head housing 11 is provided with a mounting hole 115 communicating with the water inlet chamber 113, and a layout groove 116 is arranged at the bottom surface of the mounting hole 115. The water inlet connector 16 is detachably mounted at the mounting hole 115. The mounting hole 115 is provided with an internal thread. The water inlet connector 16 includes an outer pipe portion 161 located outside the RO pump head 1, a threaded portion 162 matched with the internal thread, and a sealing portion 163 connected to the threaded portion 162. The outer wall of the sealing portion 163 is circumferentially provided with a first annular groove, and a first sealing ring 1631 is arranged at the first annular groove. In this embodiment, the sealing portion 163 is provided with two first annular grooves arranged at intervals, and a first sealing ring 1631 is arranged in each first annular groove.

[0043] With reference to Figure 2 and Figure 3 The flexible filter assembly 3 includes a flexible filter bag 31 and a mounting pipe 32 mounted at the bag opening of the flexible filter bag 31. The mounting pipe 32 includes a first pipe portion 321 capable of being arranged in the layout groove 116, and a second pipe portion 322 connected to the first pipe portion 321 and used for sewing and mounting the flexible filter bag 31. The outer diameter of the first pipe portion 321 is greater than the outer diameter of the second pipe portion 322.

[0044] With reference to Figure 4 In order to avoid the circumferential rotation of the mounting pipe 32 after being mounted in the layout groove 116, a limiting protrusion 1161 is arranged on the inner wall of the layout groove 116 along the depth direction, and the first pipe portion 321 is provided with a limiting groove 3211 for arranging the limiting protrusion 1161, so that the mounting pipe 32 is circumferentially locked with the pump head housing 11 after being mounted in the layout groove 116. The number of limiting protrusions 1161 is two and they are arranged circumferentially symmetrically. The limiting grooves 3211 in the first pipe portion 321 correspond to the limiting protrusions 1161 one by one.

[0045] With reference to Figure 3, the first pipe part 321 is provided with a second ring groove at one end of the second pipe part 322, and a second sealing ring 3212 is arranged at the second ring groove to seal with the inner wall of the arrangement groove 116. In the embodiment, the first pipe part 321 is provided with two second ring grooves arranged at intervals, and the second sealing ring 3212 is arranged in each second ring groove.

[0046] With reference to Figure 2 and Figure 5 , the flexible filter bag 31 comprises a main pipe part 311 sewn with the second pipe part 322 and an arc-shaped filter part 312 connected to the main pipe part 311 and arranged in the water inlet chamber 113. The end of the second pipe part 322 is provided with a sewing hole for circumferential sewing of the main pipe part 311, so that the main pipe part 311 is sleeved on the outside of the second pipe part 322 and is fixed by sewing with a textile thread. The main pipe part 311 is connected to the middle region of the arc-shaped filter part 312, so that the arc-shaped filter part 312 is divided into left and right symmetrical branch pipe structures 3121.

[0047] With reference to Figure 2 and Figure 6 , the upper side of the end of the second pipe part 322 is fixed with an elastic upper support sheet 331 extending into the arc-shaped filter part 312. The top surface of the upper support sheet 331 is fixed with an elastic upper support rod 332 having an appropriate size for the arc-shaped filter part 312. The top surface of the upper support sheet 331 is provided with an upper clamping groove 3311 for clamping the upper support rod 332. In the embodiment, two upper support rods 332 are arranged on the upper support sheet 331.

[0048] With reference to Figure 2 and Figure 7 , the lower side of the end of the second pipe part 322 is fixed with an elastic lower support sheet 333 extending into the arc-shaped filter part 312. The bottom surface of the lower support sheet 333 is fixed with an elastic lower support rod 334 having an appropriate size for the arc-shaped filter part 312. The bottom surface of the lower support sheet 333 is provided with a lower clamping groove 3331 for clamping the lower support rod 334. In the embodiment, two lower support rods 334 are arranged on the lower support sheet 333.

[0049] In combination with Figure 2 , Figure 6 and Figure 7 , the upper support sheet 331, the upper support rod 332, the lower support sheet 333 and the lower support rod 334 on the second pipe part 322 form an elastic support structure, so that the flexible filter bag 31 can be elastically supported, and the flexible filter bag 31 can be expanded when located in the water inlet chamber 113, which helps to reduce the probability of the flexible filter bag 31 blocking the first through hole, and does not affect the detachable connection of the flexible filter assembly 3 on the RO pump head 1.

[0050] In combination withFigures 1 to 7 The implementation principle of the RO pump with the flexible filtering assembly is that the flexible filtering assembly 3 is arranged at the RO pump head 1, so that the water entering the water inlet chamber 113 can be filtered. Since the flexible filtering assembly 3 adopts the flexible filtering bag 31, the filtering area of the flexible filtering bag 31 is relatively ideal, the probability of water outlet difficulty of the flexible filtering bag 31 due to blockage is reduced, the problem that the water pressurization and delivery capacity of the RO pump is weakened due to the arrangement of the filtering assembly in the RO pump is improved, and the flexible filtering assembly 3 is convenient to disassemble from the RO pump for cleaning.

[0051] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An RO pump with a flexible filter assembly, comprising an RO pump head (1) and a drive motor (2) for driving the RO pump head (1); the RO pump head (1) having an inlet chamber (113); characterized in that, The RO pump head (1) has a mounting hole (115) communicating with the water inlet chamber (113) and a water inlet connector (16) detachably installed at the mounting hole (115); the RO pump head (1) is also provided with a flexible filter assembly (3); the flexible filter assembly (3) includes a flexible filter bag (31) and an installation tube (32) installed at the bag opening of the flexible filter bag (31); the RO pump head (1) has an arrangement groove (116) on the bottom surface of the mounting hole (115) for installing the installation tube (32).

2. The RO pump with a flexible filter assembly according to claim 1, characterized in that, The mounting tube (32) includes a first tube section (321) arranged in the arrangement groove (116) and a second tube section (322) connected to the first tube section (321) and used for mounting the flexible filter bag (31). The outer diameter of the first tube section (321) is larger than the outer diameter of the second tube section (322). The end of the second tube section (322) is circumferentially provided with sewing holes for sewing and fixing the flexible filter bag (31).

3. An RO pump with a flexible filter assembly according to claim 2, characterized in that, The flexible filter bag (31) includes a main tube (311) sewn to the second tube (322) and an arc-shaped filter section (312) connected to the main tube (311) and arranged in the water inlet chamber (113).

4. An RO pump with a flexible filter assembly according to claim 3, characterized in that, An upper support plate (331) that extends into the arc-shaped filter section (312) and is elastic is fixed to the upper side of the end of the second tube section (322); an upper support rod (332) that is adapted to the arc-shaped filter section (312) and is elastic is fixed to the top surface of the upper support plate (331); a lower support plate (333) that extends into the arc-shaped filter section (312) and is elastic is fixed to the lower side of the end of the second tube section (322); a lower support rod (334) that is adapted to the arc-shaped filter section (312) and is elastic is fixed to the bottom surface of the lower support plate (333).

5. An RO pump with a flexible filter assembly according to claim 4, characterized in that, The top surface of the upper support plate (331) is provided with an upper slot (3311) for the upper support rod (332) to be snapped into place; the bottom surface of the lower support plate (333) is provided with a lower slot (3331) for the lower support rod (334) to be snapped into place.

6. An RO pump with a flexible filter assembly according to claim 2, characterized in that, The sidewall of the arrangement groove (116) is provided with a limiting protrusion (1161), and the first tube (321) is provided with a limiting groove (3211) for the arrangement of the limiting protrusion (1161).

7. An RO pump with a flexible filter assembly according to claim 6, characterized in that, The number of the limiting protrusions (1161) is two and they are arranged symmetrically in the circumference; the limiting grooves (3211) in the first tube (321) correspond one-to-one with the limiting protrusions (1161).

8. An RO pump with a flexible filter assembly according to claim 2, characterized in that, The mounting hole (115) is provided with an internal thread, and the water inlet connector (16) includes an outer tube (161) located outside the RO pump head (1), a threaded part (162) that mates with the internal thread, and a sealing part (163) inserted into the first tube (321); the sealing part (163) is provided with a first annular groove in the circumferential direction and a first sealing ring (1631) that mates with the inner wall of the first tube (321) is provided at the first annular groove.

9. An RO pump with a flexible filter assembly according to claim 8, characterized in that, The first tube (321) has a second annular groove circumferentially formed at one end connected to the second tube (322), and a second sealing ring (3212) is provided at the second annular groove to seal against the inner wall of the arrangement groove (116).

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