CN214787918U

CN214787918U - Non-return pump

Info

Publication number: CN214787918U
Application number: CN202121154953.5U
Authority: CN
Inventors: 熊培军
Original assignee: Zhongshan Meixiong Pump Technology Industry Co ltd
Current assignee: Zhongshan Meixiong Pump Technology Industry Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-11-19
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a non-return pump, including the pump body, be equipped with pump chamber and intake antrum and play water cavity in the pump body respectively, the intake antrum intercommunication has water supply connector, it has water connector to go out the water cavity intercommunication, be equipped with the rubber diaphragm in the pump chamber, the intake antrum lower extreme is equipped with first intercommunicating hole, the lower extreme that goes out the water cavity is equipped with the second intercommunicating hole, first intercommunicating hole with the second intercommunicating hole respectively with the rubber diaphragm intercommunication, still be equipped with on the pump body and be used for the drive the rubber diaphragm carries out the drive arrangement of work it is equipped with dual non-return subassembly in the water cavity to go out, dual non-return subassembly can completely cut off the passageway between water connector and the second intercommunicating hole and form the non-return and seal, compares with prior art, can realize dual non-return, avoids phenomenons such as weeping backward flow, accords with and uses required.

Description

Non-return pump

Technical Field

The utility model relates to a pump field, in particular to non return pump.

Background

Generally, a machine for lifting liquid, conveying liquid or increasing pressure of liquid, namely converting mechanical energy of a prime motor into liquid energy to achieve the purpose of extracting liquid is called a water pump, and a micro water pump is widely applied to small household electrical appliances such as coffee machines, instant heating type water dispensers, steaming and baking integrated machines and the like, and generally comprises a motor, an eccentric wheel, a steel needle, a swing frame, a cylinder body, a diaphragm, a valve plate, an umbrella block, a middle plate, a sealing gasket, a spring and an upper cover.

Therefore, the existing pump body can be provided with a non-return structure to prevent liquid from leaking, flowing back and the like after the pump body stops working, but the existing pump body is poor in non-return structure, still has the phenomena of leaking, flowing back and the like, and is unreasonable in structure.

Therefore, it is desirable to provide a dual non-return, anti-leakage pump that solves this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pump of dual non return, prevention of liquid leakage.

In order to achieve the above purpose, the utility model adopts the following scheme:

the utility model provides a non-return pump, including the pump body, be equipped with pump chamber and intake antrum and play water cavity in the pump body respectively, the intake antrum intercommunication has water supply connector, it has water connector to go out the water cavity intercommunication, be equipped with the rubber diaphragm in the pump chamber, the intake antrum lower extreme is equipped with first intercommunicating pore, the lower extreme that goes out the water cavity is equipped with the second intercommunicating pore, first intercommunicating pore with the second intercommunicating pore respectively with the rubber diaphragm intercommunication, still be equipped with on the pump body and be used for the drive the rubber diaphragm carries out the drive arrangement of work it is equipped with dual non-return subassembly to go out the water intracavity, dual non-return subassembly can completely cut off the passageway between water connector and the second intercommunicating pore and form the non-return and seal.

Preferably, the double check assembly comprises a lower elastic sealing element, a fixed supporting element, an upper elastic sealing element and an elastic element which are arranged in sequence from bottom to top;

preferably, the elastic piece is pressed against the inner top surface of the water outlet cavity;

preferably, a water outlet is arranged at the axis of the upper elastic sealing element and is attached to the upper end surface of the fixed supporting element so as to form a seal;

preferably, the lower elastic sealing element is attached to the inner bottom surface of the water outlet cavity and forms a closed state to the second communication hole.

Preferably, the lower elastic sealing element comprises a first rubber sealing sheet capable of covering the second communication hole, a positioning element is further arranged on the upper end face of the first rubber sealing sheet, and the positioning element is movably inserted into the fixed supporting element.

Preferably, the fixed support part comprises a first installation part arranged on the pump body, a through hole is formed in the axis of the first installation part, the through hole is located in the water outlet cavity, a guide part is arranged at the axis of the through hole, a connecting block is connected to the outer wall of the guide part and the inner wall of the through hole, the lower end face of the upper elastic sealing part is attached to the upper end face of the guide part, and the water outlet is located right above the guide part and has a diameter smaller than the diameter of the guide part.

Preferably, the upper elastic sealing element is composed of a second mounting element for mounting on the pump body, a ring-shaped flexible element connected to the second mounting element, and a water guide element connected to the ring-shaped flexible element, the water outlet is arranged on the water guide element, and the lower end surface of the water guide element is attached to the upper end surface of the fixed supporting element to form a seal.

Preferably, the upper end surface of the water guide piece is higher than the upper end surface of the annular soft piece, the elastic piece is a spring, the lower part of the spring is sleeved on the water guide piece, and the upper end of the spring is pressed against the inner top surface of the water outlet cavity.

Preferably, the upper end face of the guide piece is provided with a concave cavity which is concave downwards, and/or; and the lower end face of the guide piece is provided with a jack which is used for being spliced and assembled with the lower elastic sealing piece.

Preferably, the side wall of the positioning piece is further provided with a plurality of reinforcing ribs, and the lower end faces of the reinforcing ribs are connected with the upper end faces of the first rubber sealing pieces.

Preferably, the lower end face of the water inlet cavity is provided with a mounting hole, and a sealing umbrella T is arranged in the mounting hole.

To sum up, the utility model discloses for its beneficial effect of prior art is:

the utility model discloses a go out the intracavity and be equipped with dual non return subassembly, the passageway that dual non return subassembly can completely cut off between water swivel and the second intercommunicating pore forms the non return and seals, compares with prior art, can realize dual non return, avoids phenomenons such as weeping backward flow, accords with and uses required.

Drawings

Fig. 1 is one of the schematic sectional structural views of the present invention;

fig. 2 is a second schematic cross-sectional view of the present invention;

fig. 3 is a schematic perspective view of the middle-upper elastic sealing member according to the present invention;

FIG. 4 is a perspective view of the fixing support member according to the present invention;

FIG. 5 is a second perspective view of the fixing support member of the present invention;

FIG. 6 is a perspective view of the middle and lower elastic sealing member of the present invention;

fig. 7 is a schematic perspective view of the present invention;

fig. 8 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

Detailed Description

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:

as shown in fig. 1 to 8, a non-return pump comprises a pump body 1, wherein a pump chamber 11, a water inlet chamber 13 and a water outlet chamber 14 are respectively arranged in the pump body 1, the water inlet chamber 13 is communicated with a water inlet joint 15, the water outlet chamber 14 is communicated with a water outlet joint 16, a rubber diaphragm 12 is arranged in the pump chamber 11, a first communicating hole 131 is arranged at the lower end of the water inlet chamber 13, a second communicating hole 141 is arranged at the lower end of the water outlet chamber 14, the first communicating hole 131 and the second communicating hole 141 are respectively communicated with the rubber diaphragm 12, a driving device 2 for driving the rubber diaphragm 12 to work is further arranged on the pump body 1, a dual non-return component 3 is arranged in the water outlet chamber 14, the dual non-return component 3 can isolate a channel between the water outlet joint 16 and the second communicating hole 141 to form non-return seal, compared with the prior art, the dual non-return can be realized, and the phenomena of liquid leakage and the like can be avoided, according with the use requirement.

The number of the cavities of the rubber diaphragm 12 corresponds to the number of the first communication holes and the second communication holes, and the rubber diaphragm is arranged according to different use requirements.

As shown in fig. 1 to 8, the double check assembly 3 includes a lower elastic sealing member 31, a fixed support member 32, an upper elastic sealing member 33 and an elastic member 34, which are arranged in sequence from bottom to top;

the elastic piece 34 is pressed against the inner top surface of the water outlet cavity 14;

a water outlet 334 is arranged at the axis of the upper elastic sealing element 33, and the water outlet 334 is attached to the upper end surface of the fixed support element 32 to form a seal;

the lower elastic sealing member 31 is attached to the inner bottom surface of the water outlet chamber 14 and forms a seal with the second communication hole 141.

The working principle is as follows: liquid flows into the water inlet cavity 13 from the water inlet joint 15, then flows into the cavity of the rubber diaphragm 12 through the first communication hole 131, the driving device 2 drives the rubber diaphragm 12 to swing, so that the liquid flows into the water outlet cavity from the cavity of the rubber diaphragm 12 through the second communication hole, when the liquid enters the water outlet cavity, the liquid firstly jacks up the lower elastic sealing element 31 and flows into the water outlet cavity, the upper elastic sealing element 33 is jacked up in an upward circulation manner, a gap is formed between the upper elastic sealing element 33 and the fixed supporting element 32, so that the liquid flows upward from the water outlet 334, and finally is discharged from the water outlet joint 16.

As shown in fig. 1 to 8, the lower elastic sealing member 31 includes a first rubber sealing sheet 311 capable of covering the second communication hole 141, a positioning member 312 is further disposed on an upper end surface of the first rubber sealing sheet 311, and the positioning member 312 is movably inserted into the fixed support 32;

when no liquid flows through the first rubber sealing sheet 311, the first rubber sealing sheet 311 covers the second communication hole 141 to form a seal, when liquid flows, the first rubber sealing sheet 311 is made of a soft material, and the liquid can impact upwards to deform the first rubber sealing sheet 311, so that a gap is formed between the first rubber sealing sheet 311 and the inner bottom surface of the water outlet cavity 14 for liquid flowing.

As shown in fig. 1 to 8, the fixed support 32 includes a first mounting member 321 for mounting on the pump body, a through hole 325 is disposed at an axis of the first mounting member 321, the through hole 325 is located in the water outlet cavity 14, a guide member 322 is disposed at an axis of the through hole 325, a connecting block 323 is connected to an outer wall of the guide member 322 and an inner wall of the through hole 325, a lower end surface of the upper elastic sealing member 33 is attached to an upper end surface of the guide member 322, and the water outlet 334 is located right above the guide member 322 and has a diameter smaller than that of the guide member 322.

As shown in fig. 1 to 8, the upper elastic sealing member 33 is composed of a second mounting member 331 for mounting on a pump body, a ring-shaped flexible member 332 connected to the second mounting member 331, and a water guiding member 333 connected to the ring-shaped flexible member 332, the water outlet 334 is disposed on the water guiding member 333, and a lower end surface of the water guiding member 333 is engaged with an upper end surface of the fixed support member 32 to form a seal.

The annular soft member 332 is in an arc shape protruding upward.

After the liquid enters the water outlet cavity from the second communication hole 141 through a gap between the first rubber sealing sheet 311 and the inner bottom surface of the water outlet cavity 14, the liquid continues to flow upward through the gap between the guide member 322 and the through hole 325, and when the liquid flows to the lower side of the annular soft member 332, the liquid presses the annular soft member 332 due to no space continuing to flow upward, so that the elastic member 34 is compressed, and the annular soft member 332 and the water guide member 333 can move upward to a position, wherein the position is determined according to the elasticity of the annular soft member 332 and the pressure of the liquid, so that a gap is formed between the water guide member 333 and the guide member 322, and the liquid enters from the gap and then flows upward from the water outlet 334 to the water outlet joint 16 to be discharged.

As shown in fig. 1 to 8, the upper end surface of the water guiding member 333 is higher than the upper end surface of the annular soft member 332, the elastic member 34 is a spring, the lower portion of the spring is sleeved on the water guiding member 333, and the upper end of the spring is pressed against the inner top surface of the water outlet cavity 14.

As shown in fig. 1 to 8, a concave cavity 324 which is concave downwards is arranged on the upper end surface of the guide piece 322, and/or; the lower end surface of the guide 322 is provided with a socket 326 for inserting and assembling with the lower elastic sealing member 31.

As shown in fig. 1 to 8, a plurality of reinforcing ribs 313 are further disposed on the side wall of the positioning member 312, the lower end surfaces of the reinforcing ribs 313 are connected to the upper end surface of the first rubber sealing sheet 311, and the number of the reinforcing ribs is set according to the number of the second communication holes, so that the first rubber sealing sheet 311 above the second communication holes can be deformed while ensuring stability.

As shown in fig. 1 to 8, a mounting hole 42 is formed in the lower end surface of the water inlet cavity 13, and a sealing umbrella rib 41 is arranged in the mounting hole 42, so that a third check and leakage-proof effect can be further achieved, and the use requirement can be met.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a non-return pump, including the pump body (1), be equipped with pump chamber (11) and intake antrum (13) and play water cavity (14) in the pump body (1) respectively, intake antrum (13) intercommunication has water supply connector (15), it has water supply connector (16) to go out water cavity (14) intercommunication, be equipped with rubber diaphragm (12) in pump chamber (11), intake antrum (13) lower extreme is equipped with first intercommunicating pore (131), the lower extreme that goes out water cavity (14) is equipped with second intercommunicating pore (141), first intercommunicating pore (131) with second intercommunicating pore (141) respectively with rubber diaphragm (12) intercommunication, still be equipped with on the pump body (1) and be used for the drive rubber diaphragm (12) carry out drive arrangement (2) of work, its characterized in that: a double check assembly (3) is arranged in the water outlet cavity (14), and the double check assembly (3) can isolate a channel between the water outlet joint (16) and the second communication hole (141) to form check closure.

2. A check pump as claimed in claim 1, wherein: the double check assembly (3) comprises a lower elastic sealing element (31), a fixed supporting element (32), an upper elastic sealing element (33) and an elastic element (34) which are sequentially arranged from bottom to top;

the elastic piece (34) is pressed on the inner top surface of the water outlet cavity (14);

a water outlet (334) is arranged at the axis of the upper elastic sealing element (33), and the water outlet (334) is attached to the upper end surface of the fixed support element (32) to form a seal;

the lower elastic sealing element (31) is attached to the inner bottom surface of the water outlet cavity (14) to form a seal with the second communication hole (141).

3. A check pump as claimed in claim 2, wherein: the lower elastic sealing element (31) comprises a first rubber sealing sheet (311) capable of covering the second communication hole (141), a positioning piece (312) is further arranged on the upper end face of the first rubber sealing sheet (311), and the positioning piece (312) is movably inserted into the fixed supporting piece (32).

4. A check pump as claimed in claim 2, wherein: fixed support piece (32) are including being used for installing first installed part (321) on the pump body, first installed part (321) axle center department is equipped with through-hole (325), through-hole (325) are located go out in water cavity (14), the axle center department of through-hole (325) is equipped with guide (322), the outer wall of guide (322) with be connected with connecting block (323) on the inner wall of through-hole (325), go up the lower terminal surface laminating of elastic sealing element (33) the up end of guide (322), delivery port (334) are located directly over guide (322) and diameter ratio the diameter of guide (322) is little.

5. A check pump as claimed in claim 2, wherein: go up elastic seal (33) by be used for installing second installed part (331) on the pump body and connect flexible piece of ring type (332) on the second installed part (331) and connect water guide (333) on the flexible piece of ring type (332) constitute, delivery port (334) set up on water guide (333), thereby the lower terminal surface laminating of water guide (333) the up end of fixed support piece (32) forms and seals.

6. A check pump as claimed in claim 5, wherein: the upper end surface of the water guide piece (333) is higher than the upper end surface of the annular soft piece (332), the elastic piece (34) adopts a spring, the lower part of the spring is sleeved on the water guide piece (333), and the upper end of the spring is pressed on the inner top surface of the water outlet cavity (14).

7. A check pump as claimed in claim 4, wherein: the upper end surface of the guide piece (322) is provided with a concave cavity (324) which is concave downwards, and/or; the lower end face of the guide piece (322) is provided with a jack (326) which is used for being plugged and assembled with the lower elastic sealing piece (31).

8. A check pump as claimed in claim 3, wherein: the side wall of the positioning piece (312) is further provided with a plurality of reinforcing ribs (313), and the lower end faces of the reinforcing ribs (313) are connected with the upper end face of the first rubber sealing sheet (311).

9. A non-return pump according to any one of claims 1 to 8, characterized in that: the lower end face of the water inlet cavity (13) is provided with a mounting hole (42), and a sealing umbrella block (41) is arranged in the mounting hole (42).