CN216198855U

CN216198855U - Drip-proof diaphragm water pump

Info

Publication number: CN216198855U
Application number: CN202122463606.7U
Authority: CN
Inventors: 孙抗; 吕林军; 申照瑞
Original assignee: Heyuan Jichuangxing Technology Co ltd
Current assignee: Heyuan Jichuangxing Technology Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-04-05
Anticipated expiration: 2031-10-13

Abstract

The utility model relates to a drip-proof diaphragm water pump, which comprises an upper cover, wherein the upper cover is provided with a water inlet nozzle and a water outlet nozzle, the water inlet nozzle is communicated with a water inlet cavity through a one-way communicated water inlet valve plate, the water inlet cavity is communicated with a water outlet cavity through a one-way communicated water outlet valve plate, the diaphragm water pump also comprises a motor, the space size of the water inlet cavity is periodically changed in the rotation process of a motor shaft, so that water flows from the water inlet nozzle through the water inlet cavity, the water outlet cavity and the water outlet nozzle to the outer side of the water pump, a one-way valve structure is arranged between the water outlet nozzle and the water outlet cavity, a one-way valve structure is added, the drip-proof phenomenon of the diaphragm water pump in the use process can be avoided, the safety in the use process is improved, meanwhile, the one-way valve structure is arranged inside the diaphragm water pump, more spaces and more materials can be saved, and compared with an external one-way valve, the space for installation is smaller, and the cost is better.

Description

Drip-proof diaphragm water pump

Technical Field

The utility model relates to a diaphragm water pump, in particular to a drip-proof diaphragm water pump.

Background

At present, miniature diaphragm water pump on the market, the most unable antidrip by oneself, when with its installation domestic life electrical apparatus on, for example water dispenser or machine of sweeping the floor etc. under certain pressure differential's effect, rivers ooze from the water pump delivery port, damage electronic components or cause the product metalwork to rust, have certain risk hidden danger, consequently, need avoid the risk through external check valve, can cause extra cost-push and space waste this moment.

Simultaneously, in order to prevent the water clock among the prior art, the toper structure is adopted mostly to water pump valve plug shape, cooperates with the tangent mode of valve plug base delivery port, places for a long time under the condition of lasting effort, and tangent line position is sunken easily, leads to opening pressure surge or can't open.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a drip-proof diaphragm water pump, which can prevent the water pump from dripping under the pressure difference of 8Kpa (0.8 m water column height) so as to meet the drip-proof requirement of most household appliances.

The utility model provides a diaphragm pump of antidrip, includes the upper cover, the upper cover is equipped with inlet tap and faucet, the inlet tap passes through the inlet valve piece and the intake antrum intercommunication of one-way intercommunication, the intake antrum passes through the outlet valve piece and the play water cavity intercommunication of one-way intercommunication, diaphragm pump still includes the motor, the motor spindle rotates the in-process, and intake antrum space size takes place periodic variation to make water flow through the inlet antrum, play water cavity, faucet to the water pump outside from the inlet tap, still be equipped with the check valve structure between faucet and the play water cavity.

In one embodiment, the check valve structure comprises an elastic valve plug fixing seat, an elastic valve plug and a spring, wherein the elastic valve plug fixing seat is fixed inside the upper cover, the elastic valve plug fixing seat is provided with a communication hole for communicating the water outlet cavity and the water outlet nozzle, the elastic valve plug is located at the position of the communication hole, and under the action of the spring, the elastic valve plug seals the communication hole.

In one embodiment, the elastic valve plug fixing seat is embedded on the lower side of the upper cover, an accommodating space is formed between the elastic valve plug fixing seat and the lower cover, an annular end face is arranged on one side of the accommodating space of the elastic valve plug fixing seat close to the communication hole, and an inclined face is arranged between the annular end face and the inner bottom face of the elastic valve plug fixing seat.

In one embodiment, the width of the annular end surface is 0.3mm-0.5 mm.

In one embodiment, the elastomeric valve plug further comprises a sealing portion having a sealing area larger than an area of the communication hole, the sealing portion sealing the communication hole under the action of the spring.

In one embodiment, a clamping groove is formed in the bottom of the elastic valve plug fixing seat, a positioning column matched with the clamping groove is arranged on the elastic valve plug, and the positioning column is fixed in the clamping groove when the elastic valve plug moves up and down.

In one embodiment, a limiting portion is disposed on an inner side of the upper cover, a gap for accommodating a sidewall of the elastic valve plug fixing seat is formed between the limiting portion and the upper cover, the limiting portion is located on an upper side of the positioning column and is disposed opposite to the positioning column, and a gap is disposed between a lower end surface of the limiting portion and an upper side surface of the positioning column.

In one embodiment, the upper cover is provided with a water outlet, and the water outlet nozzle is communicated with the accommodating space on the upper side of the elastic valve plug fixing seat through the water outlet.

In one embodiment, the diaphragm water pump further comprises a valve plate fixing seat, a leather cup fixing seat and a base which are arranged from top to bottom, the upper cover, the valve plate fixing seat, the leather cup fixing seat and the base are connected through fasteners,

the valve plate fixing seat comprises a valve plate inlet hole and an outlet hole, the water inlet valve plate and the water outlet valve plate are respectively arranged at the positions of the inlet hole and the outlet hole,

the leather cup fixing seat is arranged at the position of the leather cup fixing seat, the leather cup penetrates through the leather cup fixing seat, the leather cup is provided with a leather cup piston, the leather cup piston is provided with an open cavity, so that a water inlet cavity is formed, the opening of the water inlet cavity is upward, and the water inlet cavity covers the inlet hole and the outlet hole.

In one embodiment, the shaft of the motor is provided with an eccentric wheel, the upper side of the eccentric wheel is connected with a swing arm through a rotating shaft, the swing arm is abutted to the lower side face of the cup piston, when the shaft of the motor rotates, the swing arm upwards extrudes the cup or downwards pulls the cup, and the space of the water inlet cavity is periodically increased and decreased.

Above-mentioned drip proof's diaphragm water pump increases a check valve structure, can avoid the phenomenon that the diaphragm water pump took place the water clock at the in-process that uses, improves the security in the use, simultaneously, sets up the inside at diaphragm water pump with the check valve structure, can save the use of more spaces and materials, and for external check valve, the space that needs the installation is littleer, and the cost is more excellent.

Drawings

FIG. 1 is a schematic view of the overall structure of a drip-proof membrane water pump according to the present invention;

FIG. 2 is a schematic diagram of an exploded view of the drip-proof membrane water pump of the present invention;

FIG. 3 is a schematic cross-sectional view of a drip-proof membrane pump according to the present invention;

FIG. 4 is a schematic view of the overall structure of the drip-proof membrane water pump check valve structure of the present invention;

FIG. 5 is an exploded view of the one-way valve of the drip-proof membrane water pump of the present invention;

FIG. 6 is a schematic structural view of a cross-sectional view of the drip-proof membrane water pump check valve according to the present invention;

wherein, 1, an upper cover; 11. a water inlet nozzle; 12. a water outlet nozzle; 13. a water inlet valve plate; 14. a water outlet valve plate; 15. a water inlet cavity; 16. a water outlet cavity; 17. a one-way valve structure; 171. an elastic valve plug fixing seat; 1711. a communicating hole; 1712. an annular end face; 1713. an inclined surface; 1714. a card slot; 1715. positioning the projection; 172. an elastomeric valve plug; 1721. a positioning column; 1722. a sealing part; 173. a spring; 18. a limiting part; 19. a water outlet; 2. a motor; 3. a valve plate fixing seat; 4. a leather cup fixing seat; 5. a base; 6. a leather cup; 61. a cup piston; 7. an eccentric wheel; 8. And (4) swinging arms.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, a drip-proof membrane water pump includes an upper cover 1, the upper cover 1 is provided with a water inlet nozzle 11 and a water outlet nozzle 12, the water inlet nozzle 11 is communicated with a water inlet cavity 15 through a water inlet valve sheet 13 in one-way communication, the water inlet cavity 15 is communicated with a water outlet cavity 16 through a water outlet valve sheet 14 in one-way communication, the membrane water pump further includes a motor 2, in the rotation process of a shaft of the motor 2, the space size of the water inlet cavity 15 changes periodically, so that water flows through the water inlet cavity 15, the water outlet cavity 16 and the water outlet nozzle 12 from the water inlet nozzle 11 to the outside of the water pump, and a one-way valve structure 17 is further arranged between the water outlet nozzle 12 and the water outlet cavity 16.

Increase a check valve structure 17, can avoid diaphragm pump to take place the phenomenon of water clock at the in-process that uses, improve the security in the use, simultaneously, set up the inside at diaphragm pump with check valve structure 17, can save the use of more spaces and materials, for external check valve, the space that needs the installation is littleer, and the cost is more excellent.

Specifically, check valve structure 17 includes elastic valve plug fixing base 171, elastic valve plug 172 and spring 173, elastic valve plug fixing base 171 is fixed inside upper cover 1, elastic valve plug fixing base 171 is equipped with the intercommunicating pore 1711 that is used for communicateing out water cavity 16 and faucet 12, elastic valve plug 172 is located intercommunicating pore 1711 position, and under spring 173's effect, elastic valve plug 172 is sealed with intercommunicating pore 1711. Therefore, a one-way valve structure 17 is formed in the diaphragm water pump, the one-way valve structure 17 is additionally arranged between the water outlet cavity 16 and the water outlet nozzle 12, and can form a two-time one-way circulation structure with the water outlet valve plate 14 in the use process, so that the phenomenon of water leakage of the diaphragm water pump in the use process is avoided.

At this time, the elastic valve plug fixing seat 171 is embedded on the lower side of the upper cover 1, an accommodating space is formed between the elastic valve plug fixing seat 171 and the lower cover, an annular end surface 1712 is arranged on one side of the accommodating space of the elastic valve plug fixing seat 171 near the communication hole 1711, and an inclined surface 1713 is arranged between the annular end surface 1712 and the inner bottom surface of the elastic valve plug fixing seat 171. Like this, can utilize elastic valve plug 172 to produce deformation under certain pressure to realize sealed, simultaneously, after placing for a long time, also can not appear that deformation is sunken to cause the situation that the opening pressure sharply increases.

Further, at this time, the width of the annular end surface 1712 is 0.3mm to 0.5mm, and in this embodiment, the width of the annular end surface 1712 is 0.4 mm. The too narrow of annular end surface 1712 can lead to when taking place deformation, can appear that the deformation is sunken to cause the situation that opening pressure sharply increases, and the too wide of annular end surface 1712 can lead to sealed effect relatively poor.

Of course, at this time, in order for the elastic valve plug 172 to completely seal the communication hole 1711, the elastic valve plug 172 further includes a sealing portion 1722 having a sealing area larger than that of the communication hole 1711, and the sealing portion 1722 seals the communication hole 1711 by the spring 173.

In order to guarantee the stability of elastic valve plug 172 reciprocating in-process, in this embodiment, elastic valve plug fixing base 171 bottom is equipped with draw-in groove 1714, elastic valve plug 172 is equipped with reference column 1721 with draw-in groove 1714 adaptation, when elastic valve plug 172 reciprocated, reference column 1721 was fixed in draw-in groove 1714.

Specifically, at this time, the elastic valve plug 172 includes a sealing portion 1722, positioning pillars 1721 are integrally formed around the sealing portion 1722, at this time, the positioning pillars 1721 are connected to the sealing portion 1722 through connecting portions, the positioning pillars 1721 are provided with 3 positioning holes, the interval angle between adjacent positioning portions is 120 °, a step for positioning the spring 173 is provided at the upper end of the sealing portion 1722, the elastic valve plug fixing seat 171 is overall circular, a receiving cavity for receiving the elastic valve plug 172 is provided at the upper side of the elastic valve plug fixing seat 171, at this time, the communication hole 1711 is located at the bottom of the receiving cavity, a plurality of connecting ribs are provided at the bottom of the receiving cavity for connecting the communication cavity to the bottom and the side of the elastic valve plug fixing seat 171, so as to increase the overall strength, at the same time, a clamping groove 1714 is provided at the upper end of the connecting ribs, in order to ensure the strength at the position of the clamping groove 1714, reinforcing ribs can be further added at both sides of the clamping groove 1714, thereby ensuring the overall strength of the elastic valve plug fixing seat 171,

in order to fix the elastic valve plug fixing seat 171 more firmly with the upper cover 1, in this embodiment, the upper cover 1 is provided with the limiting portion 18 on the inner side, a gap for accommodating the side wall of the elastic valve plug fixing seat 171 is formed between the limiting portion 18 and the upper cover 1, the limiting portion 18 is located on the upper side of the positioning column 1721 and is arranged opposite to the positioning column 1721, a gap is formed between the lower end face of the limiting portion 18 and the upper side face of the positioning column 1721, the limiting portion 18 and the positioning column 1721 are arranged opposite to each other, meanwhile, a certain distance is formed between the bottom of the limiting portion 18 and the upper side of the positioning column 1721, the limiting portion 18 cannot influence the normal opening process of the elastic valve plug 172, and meanwhile, the problem of position deviation when the elastic valve plug 172 is reset can be avoided. At this moment, spacing portion 18 is the spacing post that extends from 1 downside of upper cover, spacing post surface is equipped with the cambered surface with elasticity valve plug fixing base 171 medial surface adaptation, can fill in elasticity valve plug fixing base 171 between spacing portion 18 and upper cover 1 this moment, thereby with the better fixed of elasticity valve plug fixing base 171, and simultaneously, in order to make spacing portion 18 and reference column 1721 (or connecting portion) set up relatively, need confirm the position of elasticity valve plug fixing base 171 at the in-process of installation elasticity valve plug fixing base 171, consequently, be equipped with positioning protrusion 1715 at the lateral surface of elasticity valve plug fixing base 171 this moment, be equipped with positioning groove at 1 corresponding position of upper cover, when installation elasticity valve plug fixing base 171, positioning protrusion 1715 blocks in the positioning groove, thereby fix a position elasticity valve plug fixing base 171.

Finally, the upper cover 1 is provided with a water outlet 19, and the water outlet nozzle 12 is communicated with the accommodating space on the upper side of the elastic valve plug fixing seat 171 through the water outlet 19. The accommodating space is used for communicating the water outlet 19 with the accommodating space on the upper side of the elastic valve plug fixing seat 171, so that water can pass through the water inlet nozzle 11, the water inlet cavity 15, the water outlet cavity 16 and the water outlet nozzle 12 and finally is communicated with the outside.

The main structure of the diaphragm water pump adopts the technical scheme in the prior art, and particularly, the diaphragm water pump further comprises a valve plate fixing seat 3, a leather cup fixing seat 4 and a base 5 which are arranged from top to bottom, the upper cover 1, the valve plate fixing seat 3, the leather cup fixing seat 4 and the base 5 are connected through fasteners,

the valve plate fixing seat 3 comprises a valve plate inlet hole and a valve plate outlet hole, the water inlet valve plate 13 and the water outlet valve plate 14 are respectively arranged at the positions of the inlet hole and the outlet hole,

the leather cup is characterized in that a leather cup 6 is arranged at the position of the leather cup fixing seat 4, the leather cup 6 penetrates through the leather cup fixing seat 4, the leather cup 6 is provided with a leather cup piston 61, the leather cup piston 61 is provided with an open cavity, so that a water inlet cavity 15 is formed, the opening of the water inlet cavity 15 is upward, and the leather cup covers the inlet hole and the outlet hole.

Further, the spindle of motor 2 is equipped with eccentric wheel 7, eccentric wheel 7 upside is connected with swing arm 8 through the pivot, swing arm 8 and leather cup piston 61's downside butt, when 2 spindles of motor rotate, swing arm 8 rotates, swing arm 8 upwards extrudees leather cup 6 or pulls leather cup 6 downwards, 15 space periodicity in intake antrum increases and reduces.

In the 2 spindle rotation in-process of motor, eccentric wheel 7 can rotate together, can rotate with the fixed swing arm 8 of eccentric wheel 7, and there is the swing of certain angle, like this, when swing arm 8 rotates, can upwards extrude or pull leather cup 6 downwards, thereby make the space of intaking of leather cup 6 upside can periodic grow or diminish, thereby make intake valve piece 13 and play water valve piece 14 open or close, thereby make the interior liquid flow through intake antrum 15 of intake nozzle 11 to play water cavity 16, after through check valve structure 17 to faucet 12.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a diaphragm pump of antidrip, its characterized in that, includes the upper cover, the upper cover is equipped with inlet tap and faucet, the inlet tap passes through the inlet valve piece and the intake antrum intercommunication of one-way intercommunication, the intake antrum passes through the outlet valve piece and the play water cavity intercommunication of one-way intercommunication, diaphragm pump still includes the motor, the motor spindle rotates the in-process, and intake antrum space size takes place periodic variation to make water flow through the inlet antrum from the inlet tap, go out the water cavity, faucet to the water pump outside, still be equipped with the check valve structure between faucet and the play water cavity.

2. The drip-proof membrane water pump according to claim 1, wherein the check valve structure comprises an elastic valve plug fixing seat, an elastic valve plug and a spring, the elastic valve plug fixing seat is fixed inside the upper cover, the elastic valve plug fixing seat is provided with a communication hole for communicating the water outlet cavity and the water outlet nozzle, the elastic valve plug is located at the communication hole, and under the action of the spring, the elastic valve plug seals the communication hole.

3. The drip-proof membrane water pump as claimed in claim 2, wherein the resilient valve plug fixing seat is embedded in the lower side of the upper cover, an accommodating space is formed between the resilient valve plug fixing seat and the lower cover, an annular end surface is provided at a position close to the communication hole on one side of the accommodating space of the resilient valve plug fixing seat, and an inclined surface is provided between the annular end surface and the inner bottom surface of the resilient valve plug fixing seat.

4. The drip resistant membrane water pump of claim 3, wherein the width of the annular end surface is 0.3mm to 0.5 mm.

5. The drip resistant diaphragm water pump of any one of claims 2 to 4, wherein the elastomeric valve plug further comprises a seal portion having an area larger than an area of the communication hole, the seal portion sealing the communication hole under the action of the spring.

6. The drip-proof diaphragm water pump as claimed in claim 5, wherein a slot is formed at the bottom of the elastic valve plug fixing seat, the elastic valve plug is provided with a positioning column matched with the slot, and the positioning column is fixed in the slot when the elastic valve plug moves up and down.

7. The drip-proof membrane water pump as claimed in claim 5, wherein a spacing portion is disposed inside the top cover, a gap for accommodating the sidewall of the elastic valve plug fixing seat is formed between the spacing portion and the top cover, the spacing portion is disposed on the top side of the positioning pillar and opposite to the positioning pillar, and a gap is disposed between the bottom surface of the spacing portion and the top surface of the positioning pillar.

8. The drip resistant membrane water pump as claimed in claim 5, wherein the upper cover is provided with a water outlet, and the water outlet nozzle is communicated with the accommodating space on the upper side of the elastic valve plug fixing seat through the water outlet.

9. The drip-proof membrane water pump according to claim 1, further comprising a valve plate fixing seat, a leather cup fixing seat and a base which are arranged from top to bottom, wherein the upper cover, the valve plate fixing seat, the leather cup fixing seat and the base are connected through fasteners,

10. The drip proof membrane water pump of claim 9, wherein the motor shaft is provided with an eccentric wheel, the upper side of the eccentric wheel is connected with a swing arm through a rotating shaft, the swing arm is abutted with the lower side surface of the cup piston, when the motor shaft rotates, the swing arm upwards extrudes the cup or downwards pulls the cup, and the space of the water inlet cavity is periodically increased and decreased.