CN212615274U

CN212615274U - Structure for enhancing sealing performance of RO pump membrane

Info

Publication number: CN212615274U
Application number: CN202020902133.9U
Authority: CN
Inventors: 叶斌海; 孙铭
Original assignee: Ningbo Lijia Qingshi Electric Technology Co ltd
Current assignee: Ningbo Lijia Qingshi Electric Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-26
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a structure of reinforcing RO pump diaphragm sealing performance, including the front end housing, set up in lower casing and buckle closure of front end housing upper end in the last casing of casing upper end down, the internal diaphragm that is provided with of inferior valve and set up in the diaphragm is close to the control body of last casing one end, control body week side cover is equipped with the sealing washer, the one end of sealing washer support tightly in diaphragm one end, it is provided with round butt sand grip to go up the casing lower extreme, butt sand grip lower extreme support tightly in the sealing washer upper end, the outer end of butt sand grip support tightly in casing inner down, its inner end support tightly in control body side. The utility model has the characteristics of sealed effectual etc.

Description

Structure for enhancing sealing performance of RO pump membrane

Technical Field

The utility model belongs to the technical field of the RO pump technique and specifically relates to a structure of reinforcing RO pump diaphragm sealing performance is related to.

Background

At present, an RO pump is also called as an RO booster pump, an RO diaphragm pump and an RO booster pump, is one of direct-current diaphragm booster pumps, and is one of core accessories of water purification industry and household water purification machines at present. The utility model discloses a grant utility model patent that bulletin number is CN209908728U discloses a four chamber RO pumps, it includes interconnect's last casing, lower casing and motor, the motor has the motor shaft, the cover is equipped with the eccentric wheel on the motor shaft, the cover is equipped with the bearing of fetching water on the eccentric wheel, the cover is equipped with the support of fetching water on the bearing of fetching water, the support of fetching water is including evenly setting up four the wheel of fetching water at the ring top, the vibrating diaphragm is equipped with and the corresponding wriggling district of the wheel of fetching water, the control body is equipped with the suction chamber corresponding with the wriggling district, be provided with the discharge chamber between the. The motor shaft is driven by the motor shaft to rotate, the water pumping support is driven by the eccentric wheel and the water pumping bearing to creep up and down, the creeping region on the vibrating membrane is driven by the upward and downward creeping of the water pumping support to move up and down, and therefore water sucked into the cavity can be discharged outwards through the discharge cavities under the action of the creeping region.

The prior patent grant publication number: CN207647759U reliable RO pump relief valve leak protection water structure discloses a reliable RO pump relief valve leak protection water structure, including last casing, go up the casing and seted up and have the open-ended valve pocket, the pressure release entry and pressure release export have been seted up to the valve pocket, go up the casing and can dismantle be connected with the top cap with the laminating of valve pocket inner wall, seted up the seal groove on the top cap perisporium, the embedded sealing washer that is equipped with of seal groove. The upper shell is internally provided with a water outlet cavity which is communicated with a water outlet pipe, and an O-shaped sealing ring is additionally arranged between the upper shell and the control body to ensure the sealing of the water outlet cavity. High-pressure water flow discharged from the discharge cavity of the control body enters the water outlet cavity after passing through the one-way valve, and the high-pressure water flow jacks up the periphery of the valve plate of the one-way valve, so that the high-pressure water flow is sprayed into the water outlet cavity from a gap between the one-way valve and the control body.

The above prior art solutions have the following drawbacks: when the RO pump is in use, water flow not only leaks out from the top cover and the inner wall of the valve cavity, but also can leak out from the position between the diaphragm and the control body, so that the use physical examination of the RO pump is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a better reinforcing RO pump diaphragm sealing performance's of leak protection performance structure.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a structure of reinforcing RO pump diaphragm sealing performance, include the front end housing, set up in lower casing and buckle closure of front end housing upper end in the last casing of casing upper end down, the internal diaphragm that is provided with of inferior valve and set up in the diaphragm is close to go up the control body of casing one end, control body week side cover is equipped with the sealing washer, the one end of sealing washer support tightly in diaphragm one end, it is provided with round butt sand grip to go up the casing lower extreme, butt sand grip lower extreme support tightly in the sealing washer upper end, the outer end of butt sand grip support tightly in casing inner down, its inner end support tightly in control body side.

Through adopting above-mentioned technical scheme, when this RO pump is when using, go up casing and casing lock-joint down and be in the same place, at this moment, the butt sand grip is pegged graft in casing inner down, the lower terminal surface of going up the casing is in the same place with the tight butt of the up end of casing down, at this moment, the tight butt of lower extreme of butt sand grip is in the sealing washer upper end, make the sealing washer produce deformation, and the sealing washer lower extreme of deformation supports tightly in the diaphragm upper end, and its outer end supports tightly in the internal terminal surface of inferior valve, the inner supports tightly in control body survey end, thereby seal, make this RO pump when using, the probability of leaking is lower.

The utility model discloses further set up to: the upper end of the diaphragm is provided with a circle of lower sealing convex ring which is propped against the lower end of the sealing ring.

Through adopting above-mentioned technical scheme, set up round lower seal protruding circle in the diaphragm upper end outside, when the sealing washer supports tightly in the diaphragm, the sealing washer lower extreme is advanced to the direct tight butt of lower seal protruding circle for the deformation that the sealing washer lower extreme produced the invagination, thereby reach better sealed effect.

The utility model discloses further set up to: the lower end of the abutting convex strip is provided with an upper sealing convex ring abutting against the upper end of the sealing ring.

Through adopting above-mentioned technical scheme, when butt sand grip butt in the sealing washer upper end, what produce deformation is the outer end and the inner of sealing washer, sets up the protruding circle of upper seal at the lower extreme of butt sand grip in this scheme for the protruding circle of upper seal can directly butt into the sealing washer upper end, thereby reaches better sealed effect.

The utility model discloses further set up to: the periphery of the inner end of the upper shell is provided with a plurality of limiting columns, and the lower ends of the limiting columns are abutted against the upper end of the control body.

Through adopting above-mentioned technical scheme, when last casing and lower casing installation together, the spacing post butt in the control body upper end of going up casing inner for the tight butt of the control body is in the diaphragm upper end, and the cooperation sealing washer is with the tight location of diaphragm simultaneously, avoids it to produce the displacement in the vibration, thereby causes to leak or RO pump efficiency to descend.

The utility model discloses further set up to: the periphery of the lower end of the diaphragm is provided with a circle of limiting convex ring, and the inner end of the lower shell is provided with a circle of limiting groove for the limiting convex ring to be in interference insertion connection.

Through adopting above-mentioned technical scheme, with the spacing flange direct plug of diaphragm lower extreme in advancing spacing recess for the diaphragm is further fixed, and the lower extreme of diaphragm supports tightly on the one hand and produces deformation in the recess and can prevent that rivers from spilling from the diaphragm lower extreme, and the difficult displacement of the fixed good diaphragm of on the other hand, thereby strengthens sealed effect.

The utility model discloses further set up to: and a plurality of positioning bolts are arranged on the peripheral side of the upper shell, and the positioning bolts sequentially penetrate through the lower shell and the front end cover.

Through adopting above-mentioned technical scheme, will go up casing, lower casing and front end housing through positioning bolt and fix and cramp, increase the deformation volume at sealing washer and diaphragm edge on the one hand to deepen sealed effect, on the other hand avoids going up casing, casing and front end housing at the axial fixity insecure, thereby explode.

The utility model discloses further set up to: the lower shell is integrally formed by aluminum.

Through adopting above-mentioned technical scheme, will descend the casing to pass through aluminium and make for the intensity of casing is higher down, thereby avoids inside water pressure too big or diaphragm and sealing washer deformation too big to cause casing deformation down, thereby causes the unable installation of RO pump, and on the other hand promotes the pressure of RO pump and bears the upper limit.

The utility model discloses further set up to: the outer end of the lower shell is provided with a plurality of weight reduction cavities.

Through adopting above-mentioned technical scheme, though aluminium system casing weight can be lighter than a lot of metals under, nevertheless still overweight compared with the plastics that normal RO pump used to be unfavorable for RO pump's installation etc. offer at the casing outer end down in this scheme and subtract heavy chamber, lighten casing weight down when not influencing casing structural strength down.

To sum up, the utility model discloses a beneficial technological effect does:

1. the sealing ring is arranged on the outer side of the upper end of the membrane in the lower shell, and the abutting convex strip at the lower end of the upper shell abuts against the sealing ring tightly, so that the sealing ring is deformed to seal, and the RO pump has better sealing performance;

2. the upper sealing convex ring and the lower sealing convex ring tightly abut against the sealing ring, so that the sealing effect of the RO pump is improved;

3. through spacing post fixed control body to spacing to the diaphragm, it is further spacing to the diaphragm through spacing protruding circle and spacing recess, makes the diaphragm can not produce the displacement because of the vibration, thereby strengthens sealed effect.

Drawings

FIG. 1 is an assembled schematic view of a structure for enhancing the sealing performance of RO pump membrane 4;

FIG. 2 is an exploded view of a structure for enhancing the sealing performance of the RO pump membrane 4;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an exploded view of a structure for enhancing the sealing performance of the RO pump membrane 4;

fig. 5 is an enlarged view of fig. 4 at B.

In the figure: 1. a front end cover; 2. a lower housing; 3. an upper housing; 4. a membrane; 5. a control body; 6. a limiting column; 7. a seal ring; 8. abutting the convex strip; 9. an upper sealing convex ring; 10. a lower sealing convex ring; 11. a limit convex ring; 12. a limiting groove; 13. positioning the bolt; 14. a weight-reducing cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a structure for enhancing sealing performance of a membrane 4 of an RO pump comprises a front end cover 1, a lower shell 2 arranged at the upper end of the front end cover 1, and an upper shell 3 covering the upper end of the lower shell 2, wherein the lower shell 2 is internally provided with the membrane 4 and a control body 5.

Go up 3 even an organic whole of inner week sides of casing and moulded plastics of many spacing posts 6, the lower extreme of spacing post 6 is higher than the lower terminal surface of last casing 3 for when going up casing 3 and casing 2 lock, the lower extreme butt of spacing post 6 is in the control body 5 upper end outside, thereby is fixed with control body 5.

Referring to fig. 2 and 3, when the diaphragm 4 is embedded in the lower housing 2, the control body 5 abuts against the upper end of the diaphragm 4, and the cross section of the lower end of the control body 5 is smaller than the area of the end surface of the diaphragm 4, so that the side end of the control body 5 cannot abut against the inner end surface of the lower housing 2, at this time, the periphery of the control body 5 is sleeved with the sealing ring 7, the outer end surface of the sealing ring 7 abuts against the inner end of the lower housing 2, and the lower end of the sealing ring 7 abuts against the upper end of.

Go up 3 integrative protruding rounds of butt sand grip 8 that are equipped with of lower extreme of casing, the width of this butt sand grip 8 is the same with the width of sealing washer 7, and the integrative protruding circle 9 that is equipped with in lower extreme middle part of butt sand grip 8, when butt sand grip 8 supported tight sealing washer 7, the whole circle of protruding circle 9 of upper seal directly supported and advanced sealing washer 7 upper end. At this time, the seal ring 7 is deformed, the middle part of the upper end of the seal ring is sunken, the outer end of the seal ring abuts against the inner end of the lower shell 2, and the outer end of the seal ring abuts against the outer end of the control body 5.

Referring to fig. 2 and 5, a lower sealing convex ring 10 is integrally arranged at the upper end of the diaphragm 4 corresponding to the upper sealing convex ring 9, and the lower sealing convex ring 10 abuts against the lower end of the sealing ring 7, so that any end surface of the sealing ring 7 is deformed, and the best sealing effect is achieved.

Referring to fig. 3 and 4, a limiting convex ring 11 is integrally arranged at the outer ring of the lower end of the diaphragm 4, and a limiting groove 12 for interference insertion of the limiting convex ring 11 is formed in the outer ring of the inner end of the lower shell 2, so that the diaphragm 4 is positioned.

A plurality of positioning bolts 13 penetrate through the outer ring of the upper end of the upper shell 3 without passing through the inner part of the upper shell, and the positioning bolts 13 penetrate through the outer end of the lower shell 2 and are fixed with the front end cover 1 through threads, so that the upper shell 3, the lower shell 2 and the front end cover 1 are tightly fixed together.

The lower shell 2 is made of aluminum through integral stamping, and the weight reduction cavity 14 is formed between the positioning bolts 13 of the lower shell 2, so that the structural strength is met, and the dead weight is reduced as much as possible.

The implementation principle of the embodiment is as follows:

when the RO pump is used, the upper shell 3 and the lower shell 2 are buckled together, at the moment, the butt convex strip 8 is inserted into the inner end of the lower shell 2, the lower end face of the upper shell 3 and the upper end face of the lower shell 2 are tightly butted together, at the moment, the butt convex strip 8 and the lower end of the upper sealing convex ring 9 are tightly butted at the upper end of the sealing ring 7, the lower sealing convex ring 10 at the upper end of the diaphragm 4 is tightly butted at the lower end of the sealing ring 7, the sealing ring 7 is deformed, the limiting convex ring 11 at the lower end of the diaphragm 4 is embedded in the fiber groove in the lower shell 2 at the moment, and therefore the fixing is realized, the outer end of the diaphragm 4 is abutted against the inner end face of the lower shell 2, the inner end is abutted against the measuring end of the.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a structure of reinforcing RO pump diaphragm (4) sealing performance, include front end housing (1), set up in lower casing (2) and the buckle closure of front end housing (1) upper end in last casing (3) of casing (2) upper end down, be provided with diaphragm (4) in casing (2) down and set up in diaphragm (4) are close to go up control body (5) of casing (3) one end, its characterized in that: control body (5) week side cover is equipped with sealing washer (7), the one end of sealing washer (7) support tightly in diaphragm (4) one end, it is provided with round butt sand grip (8) to go up casing (3) lower extreme, butt sand grip (8) lower extreme support tightly in sealing washer (7) upper end, the outer end of butt sand grip (8) support tightly in casing (2) inner down, its inner end support tightly in control body (5) side.

2. A structure for enhancing sealing performance of a RO pump membrane (4) according to claim 1, characterized in that: the upper end of the diaphragm (4) is provided with a circle of lower sealing convex ring (10) which is tightly propped against the lower end of the sealing ring (7).

3. A structure for enhancing the sealing performance of an RO pump membrane (4) according to claim 2, characterized in that: the lower end of the abutting convex strip (8) is provided with an upper sealing convex ring (9) abutting against the upper end of the sealing ring (7).

4. A structure for enhancing sealing performance of a RO pump membrane (4) according to claim 1, characterized in that: go up casing (3) inner week side and be provided with many spacing posts (6), spacing post (6) lower extreme support tightly in control body (5) upper end.

5. A structure for enhancing sealing performance of a RO pump membrane (4) according to claim 1, characterized in that: the diaphragm (4) lower extreme periphery is provided with spacing protruding circle (11) of round, casing (2) inner down is seted up the round and is supplied spacing protruding circle (11) interference spacing recess (12) of pegging graft.

6. A structure for enhancing sealing performance of a RO pump membrane (4) according to claim 1, characterized in that: go up casing (3) week side and be provided with many positioning bolt (13), positioning bolt (13) pass in proper order casing (2) down with front end housing (1).

7. A structure for enhancing sealing performance of a RO pump membrane (4) according to claim 1, characterized in that: the lower shell (2) is integrally formed by aluminum.

8. A structure for enhancing the sealing performance of an RO pump membrane (4) according to claim 7, characterized in that: the outer end of the lower shell (2) is provided with a plurality of weight reduction cavities (14).