CN209875434U - RO pump with seal structure - Google Patents

Abstract

The utility model discloses a RO pump with seal structure, including interconnect's RO pump head and driving motor, wherein the pump head casing includes casing and lower casing, presss from both sides between the casing at last time and is equipped with control body and vibrations membrane, is provided with annular sealed edge along vibrations membrane circumference, and sealed edge both ends are equipped with the sealing washer, and the sealing washer is under the assembly pressure of upper and lower casing, closely laminating junction, the beneficial effects of the utility model are that: through set up the sealing washer along both ends sealed, the junction can be hugged closely to the sealing washer, has prevented that the inside water of RO pump from going out through the joint gap and spilling over outward.

Description

RO pump with seal structure

Technical Field

The utility model relates to a RO pump specifically is seal structure in the RO pump.

Background

RO pump, the full-name reverse osmosis diaphragm booster pump extensively applies to the water purification trade, and the family is the purifier is common. Among the prior art, because the RO pump is outwards discharged water through the mode of pressure boost, so RO pump pressure boost intracavity pressure is great, and when RO pump vibrating diaphragm was sealed inseparable, the water in RO pump pressure boost intracavity probably outwards spills over to the joint gap of upper and lower casing and vibrating diaphragm, influences the normal use of RO pump.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model provides a RO pump with seal structure aims at solving among the prior art sealed inseparable, and the RO pump body technique of leaking is not enough.

In order to realize the above insufficiency, the utility model discloses a realize through following technical scheme: an RO pump having a sealed structure comprising an RO pump head having a pump head housing and a drive motor having a motor housing; the pump head shell comprises an upper shell and a lower shell, a control body and a vibrating membrane which are arranged up and down are clamped between the upper shell and the lower shell, the vibrating membrane comprises a sealing edge arranged along the circumferential direction, an annular first sealing ring is arranged on one side, facing the upper shell, of the sealing edge, an annular first pressing surface is arranged on one side, facing the vibrating membrane, of the upper shell, and the upper shell presses the first sealing ring on the end surface of the sealing edge through the first pressing surface; an annular second sealing ring is arranged on one side, facing the lower shell, of the sealing edge, an annular sealing groove is arranged on the end face, facing the upper shell, of the lower shell, and the second sealing ring is arranged in the sealing groove; the upper shell faces one side of the lower shell and is provided with an annular second pressing surface, the upper shell is tightly pressed by the second pressing surface, the second sealing ring is tightly pressed, and the limiting bolt sequentially penetrates through the upper shell and the lower shell and is connected to the motor shell.

In the technical scheme, the first pressing rib is convexly formed and provided with a first pressing rib, and the first sealing ring is pressed by the first pressing rib; and a second pressing rib is arranged on the second pressing surface in a protruding forming mode, and the second sealing ring is pressed and arranged by the second pressing rib.

In the above technical solution, the cross sections of the first pressing rib and the second pressing rib are set to be rectangular.

In the above technical solution, the cross sections of the first sealing ring and the second sealing ring are set to be rectangular.

In the technical scheme, the lower shell faces the end face of the upper shell, more than two limiting bosses are arranged on the end face of the upper shell in a forming mode, the end face of the upper shell faces the lower shell, limiting cavities matched with the limiting bosses are formed in the end face of the lower shell, and the limiting bosses are inserted into the limiting cavities.

In the technical scheme, the limiting boss is formed and arranged on the outer side of the sealing groove; the limiting cavity is formed and arranged on the outer side of the second pressing rib.

Compared with the prior art, the beneficial effects of the utility model reside in that: through the sealing washer that is equipped with at the both ends face pad of vibrating diaphragm, and the sealing washer receives the pressure of unit mount, the laminating junction that the sealing washer can be inseparable has effectually prevented that water from spilling over from the joint clearance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the sectional structure of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is a schematic diagram of the middle structure of the present invention.

Fig. 5 is a schematic sectional view of the upper shell structure of the present invention.

Fig. 6 is a schematic view of the structure of the upper housing of the present invention.

Fig. 7 is an enlarged view of the portion B in fig. 6.

Fig. 8 is a schematic view of the structure of the middle and lower shells of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. As shown in fig. 1, an RO pump with a sealed structure comprises an RO pump head 1 and a driving motor 2, wherein the RO pump comprises a pump head housing 1a, the driving motor 2 comprises a motor housing 2a, the RO pump head 1 is fixedly connected with the motor housing 2a through the pump head housing 1a, and the driving motor 2 is used for driving the RO pump head 1 to operate.

In the present embodiment, with reference to fig. 2, 3 and 4, the pump head housing 1a includes an upper housing 10 and a lower housing 11, a control body 12 and a diaphragm 13 disposed vertically are interposed between the upper housing 10 and the lower housing 11, and the upper housing 10 and the lower housing 11 fasten and limit the control body 12 and the diaphragm 13. Because the pressure in the working chamber of the RO pump is relatively high, if the sealing is not tight, the pressure in the pump chamber of the RO pump may press water out from the joint of the control body 12 and the diaphragm 13, which may cause water to overflow from the joint gap between the upper shell 10 and the lower shell 11, and in order to realize the sealing, the embodiment is as follows: the diaphragm 13 is provided with a sealing edge 130 along the circumferential direction, and sealing rings are arranged at two end parts of the sealing edge 130 in a cushioning manner, wherein a first sealing ring 131 is arranged on one side of the sealing edge 130 facing the upper shell 10, and a first pressing surface 100 is arranged on one side of the upper shell 10 facing the lower shell 11, and the first pressing surface 100 is used for pressing and arranging the first sealing ring 131 on the upper end surface of the sealing edge 130; meanwhile, in order to ensure tight connection between the upper casing 10, the sealing edge 130 and the lower casing 11, a sealing groove 110 is formed in the lower casing 11 in advance towards one side end face of the upper casing 10, a second sealing ring 132 is embedded in the sealing groove 110, a second pressing surface 101 is arranged in the upper casing 10 in the circumferential direction towards the lower casing 11, and the second sealing ring 132 can be pressed and arranged in the sealing groove 110 by the second pressing surface 101.

Preferably, with reference to fig. 3, 5, 6 and 7, in order to ensure that the first sealing ring 131 is tightly attached to the sealing edge 130 of the diaphragm 13, a ring of first pressing rib 100a is formed on the first pressing surface 100, and since the first pressing rib 100a is convexly disposed, the first pressing rib 100a can better press and dispose the first sealing ring 131 on the end surface of the sealing edge 130, so that the attachment is tighter, and water leakage is effectively prevented. Similarly, the second pressing surface 101 is provided with a ring of annular second pressing rib 101a, and the second pressing rib 101a is protruded, so that the second sealing ring 132 can be better pressed in the sealing groove 110 by the second pressing rib 101a, the fitting is tighter, and water leakage is effectively prevented.

In the present embodiment, referring to fig. 1 and 4, the limit bolt 3 passes through the upper shell 10 and the lower shell 11 and is screwed into the motor housing 2a to achieve connection. The connection is tight and the disassembly is realized.

In the present embodiment, the first sealing ring 131 and the second sealing ring 132 are rectangular rings with rectangular cross sections.

As shown in fig. 7 and 8, in order to ensure the tightness of the connection between the upper casing 10 and the lower casing 11, two or more limiting cavities 102 are inwardly formed in the second pressing surface 101 of the upper casing 10, limiting bosses 111 equal in number to the limiting cavities 102 are formed on the end surface of the lower casing 11, and the limiting bosses 111 are inserted into the limiting cavities 102, so that the upper casing 10 and the lower casing 11 can be prevented from rotating relatively. In this embodiment, the number of the limiting cavities 102 and the number of the limiting bosses 111 are 4, the 4 limiting cavities 102 are respectively disposed on the outer side of the second pressing rib 101a, and the 4 limiting bosses 111 are respectively disposed on the outer side of the limiting groove 110.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. An RO pump having a sealing structure, comprising an RO pump head (1) and a drive motor (2), said RO pump head (1) having a pump head housing (1 a), said drive motor (2) having a motor housing (2 a), characterized in that: the pump head shell (1 a) comprises an upper shell (10) and a lower shell (11), a control body (12) and a vibration membrane (13) which are vertically arranged are clamped between the upper shell (10) and the lower shell (11), the vibration membrane (13) comprises a sealing edge (130) which is arranged along the circumferential direction, an annular first sealing ring (131) is arranged on one side, facing the upper shell (10), of the sealing edge (130), an annular first pressing surface (100) is arranged on one side, facing the vibration membrane (13), of the upper shell (10), and the upper shell (10) presses the first sealing ring (131) on the end surface of the sealing edge (130) through the first pressing surface (100); an annular second sealing ring (132) is arranged on one side, facing the lower shell (11), of the sealing edge (130), an annular sealing groove (110) is arranged on the end face, facing the upper shell (10), of the lower shell (11), and the second sealing ring (132) is arranged in the sealing groove (110); go up casing (10) orientation casing (11) one side is equipped with annular second and compresses tightly face (101) down, go up casing (10) through second compresses tightly face (101) will second sealing washer (132) compress tightly the setting, and stop bolt (3) pass in proper order go up casing (10), casing (11) are connected to motor housing (2 a) down.

2. An RO pump having a sealing structure according to claim 1, wherein: the first pressing rib (100 a) is convexly formed to form a first pressing rib (100 a), and the first sealing ring (131) is pressed by the first pressing rib (100 a); the second pressing surface (101) is provided with a second pressing rib (101 a) in a protruding forming mode, and the second sealing ring (132) is pressed by the second pressing rib (101 a).

3. An RO pump having a sealing structure according to claim 2, wherein: the first pressing rib (100 a) and the second pressing rib (101 a) are arranged to be rectangular in cross section.

4. An RO pump having a sealing structure according to claim 2, wherein: the cross sections of the first sealing ring (131) and the second sealing ring (132) are rectangular.

5. An RO pump having a sealing structure according to claim 1, wherein: lower casing (11) orientation the shaping is equipped with spacing boss (111) more than two on the terminal surface of last casing (10), go up casing (10) orientation the terminal surface of lower casing (11) be equipped with spacing chamber (102) of spacing boss (111) looks adaptation, spacing boss (111) insert in spacing chamber (102).

6. An RO pump having a sealing structure according to claim 5, wherein: the limiting boss (111) is formed and arranged on the outer side of the sealing groove (110); the limiting cavity (102) is formed and arranged on the outer side of the second pressing rib (101 a).