CN212130750U

CN212130750U - Diaphragm pump

Info

Publication number: CN212130750U
Application number: CN201921971653.9U
Authority: CN
Inventors: 李啟洪
Original assignee: Foshan Yakeqi Electronic Appliance Co ltd
Current assignee: Foshan Yakeqi Electronic Appliance Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-12-11
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a diaphragm pump, which comprises a water pumping valve body, a diaphragm and a driving device for driving the diaphragm; the water pumping valve body comprises a valve block for limiting the flow direction of water flow and a water inlet and outlet cover matched with the valve block, a water inlet cavity and a water outlet cavity are arranged between the valve block and the water inlet and outlet cover, the diaphragm is provided with a drum cavity capable of being compressed and deformed, and the drum cavity is respectively communicated with the water inlet cavity and the water outlet cavity; the valve block is provided with a valve plate groove, a water outlet communicated with the drum cavity and a raised surrounding edge for enclosing the water outlet are arranged in the valve plate groove, and the valve plate groove is provided with a one-way valve plate for blocking the surrounding edge. Adopt the utility model discloses, can avoid the one-way valve block the condition that bonds and adaptable higher temperature storage environment to appear.

Description

Diaphragm pump

Technical Field

The utility model relates to a water pump technical field especially relates to a diaphragm pump.

Background

The existing diaphragm pump is generally small in size, a main pump body of the existing diaphragm pump is generally made of plastics, and a one-way valve plate for controlling the flow direction of water flow is generally soft rubber.

Therefore, in the process of product transportation, particularly long-time marine transportation, the high-temperature storage environment can cause the one-way valve plate to be bonded with parts in the pump body, so that the normal work of the product is influenced.

On the other hand, when the low flow, the check valve piece is difficult to open completely generally, so when being in low flow operating condition for a long time, can appear the frequent condition of adhesion, and influence the normal work of pump body.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a diaphragm pump is provided, the condition that can avoid the one-way valve block to bond appears and the storage environment of adaptable higher temperature.

In order to solve the technical problem, the utility model provides a diaphragm pump, which comprises a water pumping valve body, a diaphragm and a driving device for driving the diaphragm;

the water pumping valve body comprises a valve block for limiting the flow direction of water flow and a water inlet and outlet cover matched with the valve block, a water inlet cavity and a water outlet cavity are arranged between the valve block and the water inlet and outlet cover, the diaphragm is provided with a drum cavity capable of being compressed and deformed, and the drum cavity is respectively communicated with the water inlet cavity and the water outlet cavity;

the valve block is provided with a valve plate groove, a water outlet communicated with the drum cavity and a raised surrounding edge for enclosing the water outlet are arranged in the valve plate groove, and the valve plate groove is provided with a one-way valve plate for blocking the surrounding edge.

As an improvement of the scheme, the water inlet and outlet cover is also provided with a separation inner wall, and the water inlet cavity and the water outlet cavity are isolated by the separation inner wall.

As an improvement of the above scheme, the valve block is provided with an inner sealing annular groove corresponding to the separating inner wall, and the bottom of the separating inner wall is provided with a convex ring matched with the inner sealing annular groove;

and a sealing gasket is arranged between the water inlet and outlet cover and the valve block.

As an improvement of the scheme, the valve block is further provided with a water inlet hole and a valve sheet for blocking the water outlet hole, and the water inlet cavity is communicated with the drum cavity through the water outlet hole.

As an improvement of the scheme, the raised surrounding edge comprises an inner surrounding edge and an outer surrounding edge, and the water outlet hole is formed between the inner surrounding edge and the outer surrounding edge.

As the improvement of the scheme, at least 2 water outlet holes are arranged, and an isolation ridge for separating the adjacent water outlet holes is further arranged between the inner peripheral edge and the outer peripheral edge.

As an improvement of the scheme, the one-way valve plate is provided with a sealing rubber rib corresponding to the isolation ridge, the water inlet and outlet cover is provided with a pressing piece corresponding to the sealing rubber rib, and the pressing piece presses the sealing rubber rib onto the isolation ridge.

As an improvement of the above scheme, the water inlet and outlet cover comprises a cover body, a water inlet pipe communicated with the water inlet cavity, and a water outlet flow detection seat, wherein a rotor cavity communicated with the water outlet cavity is arranged in the water outlet flow detection seat, a rotor is arranged in the rotor cavity, and a detection element corresponding to the rotor is arranged on the water outlet flow detection seat.

As an improvement of the scheme, the top of the water outlet flow detection seat is provided with an upper cover for sealing the rotor cavity, the upper cover is provided with flow holes, and the flow holes correspond to the blades of the rotor.

As an improvement of the above scheme, the driving device comprises a motor, an eccentric block linked with the motor and a connecting rod linked with the eccentric block, and the bottom of the diaphragm is connected with the connecting rod;

the center of the connecting rod is provided with a transmission shaft, the eccentric block is provided with an inclined shaft hole, one end of the transmission shaft is inserted in the shaft hole, and the eccentric block driven by the motor drives the connecting rod to deflect so as to compress or stretch the drum cavity.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses a diaphragm pump, which comprises a water pumping valve body, a diaphragm and a driving device for driving the diaphragm;

the water pumping valve body comprises a valve block and a water inlet and outlet cover, a water inlet cavity and a water outlet cavity are arranged between the valve block and the water inlet and outlet cover, the diaphragm is provided with a drum cavity capable of compressing and deforming, and the drum cavity is respectively communicated with the water inlet cavity and the water outlet cavity; the valve block is provided with a valve sheet groove and a water outlet hole, and the valve sheet groove is provided with a one-way valve sheet.

Therefore, the water outlet holes are enclosed by the raised enclosing edges arranged in the valve plate grooves, so that the one-way valve plate is erected, the one-way valve plate is prevented from being completely attached to the bottom of the valve plate grooves, and the phenomenon that the one-way valve plate is bonded is avoided.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of another angle of FIG. 2;

fig. 4 is a schematic sectional structure of the present invention;

fig. 5 is a schematic cross-sectional view of another aspect of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a diaphragm pump, which comprises a water pumping valve body 1, a diaphragm 2 and a driving device 3 for driving the diaphragm;

the water pumping valve body 1 comprises a valve block 11 for limiting the flow direction of water flow and a water inlet and outlet cover 12 matched with the valve block 11, a water inlet cavity 4 and a water outlet cavity 5 are arranged between the valve block 11 and the water inlet and outlet cover 12, the diaphragm 2 is provided with a drum cavity 21 capable of compressing and deforming, and the drum cavity 21 is respectively communicated with the water inlet cavity 4 and the water outlet cavity 5;

the valve block 11 is provided with a valve sheet groove 111, a water outlet 112 communicated with the drum cavity 21 and a raised surrounding edge 6 for enclosing the water outlet 112 are arranged in the valve sheet groove 111, and a one-way valve sheet 7 for blocking the raised surrounding edge 6 is arranged in the valve sheet groove 111.

The driving device 3 comprises a motor 31, an eccentric block 32 linked with the motor and a connecting rod 33 linked with the eccentric block 32, and the bottom of the diaphragm 2 is connected with the connecting rod 33;

the center of the connecting rod 33 is provided with a transmission shaft 331, the eccentric block 32 is provided with an inclined shaft hole 321, one end of the transmission shaft 331 is inserted in the shaft hole 321, the eccentric block 32 driven by the motor 31 drives the connecting rod 33 to deflect so as to compress or stretch the drum cavity 21, and therefore the drum cavity 21 plays a role in pumping water and draining water.

Specifically, the diaphragm 2 is provided with a plurality of drum cavities 21, and the valve block 11 is provided with water outlet holes 112 corresponding to the drum cavities 21 one by one. The raised surrounding edge 6 comprises an inner surrounding edge 61 and an outer surrounding edge 62, and the water outlet 112 is arranged between the inner surrounding edge 61 and the outer surrounding edge 62, so that the check valve plate 7 can close the area between the inner surrounding edge 61 and the outer surrounding edge 62 to achieve the function of blocking the water outlet 112. The arrangement of the raised surrounding edge 6 can reduce the contact area between the check valve plate 7 and the bottom surface of the valve plate groove 111, so that the bonding phenomenon of the check valve plate 7 is greatly reduced.

In addition, in order to reduce the possibility that the outlet holes 112 are completely stuck and blocked, the outlet holes 112 are in a long arc shape, so that the influence of the partial sticking and blocking of the outlet holes 112 on the outlet flow rate is reduced.

On the other hand, the hardness of the one-way valve plate can directly influence the service life and the water outlet flow, and for the one-way valve plate with high hardness, the bonding condition of the one-way valve plate can be relieved. However, when the check valve plate is flushed by water flow, the deformation amount of the check valve plate is small due to the high hardness, namely, the opening opened by the check valve plate is small, so that the flow rate of the water flow is limited. Meanwhile, compared with a one-way valve plate with low hardness, the valve plate is easier to achieve the fatigue state of materials and has shorter service life. And to the one-way valve block that hardness is low, when receiving rivers to wash open, the deformation volume is big, leads to rivers to flow to scurry to adjacent apopore easily, and has reduced the efficiency of pump water. In general, the valve sheet with higher hardness is made of a material having a low adhesive property.

Therefore, in order to ensure the utility model has good water pumping efficiency and service life, an isolation ridge 63 for separating the adjacent water outlet holes 112 is arranged between the inner surrounding edge 61 and the outer surrounding edge 62. The one-way valve plate 7 is provided with a sealing rubber rib 71 corresponding to the isolation ridge 63, the water inlet and outlet cover 12 is provided with a pressing piece 121 corresponding to the sealing rubber rib 71, and the pressing piece 121 presses the sealing rubber rib 71 onto the isolation ridge 63, so that the water flow between the adjacent water outlet holes 112 is prevented from flowing and channeling.

Moreover, valve plate groove 111 is equipped with and has been used for the installation check valve plate 7's erection column 113, check valve plate 7 is equipped with protruding installation department 72, protruding installation department 72 be equipped with the mounting hole 721 of erection column 113 looks adaptation, so that check valve plate 7 accessible the mounting hole 721 cover is located on the erection column 113, correspondingly, the top of protruding installation department 72 also corresponds and is equipped with compress tightly piece 121.

To sum up, through protruding surrounding edge 6, keep apart ridge 63 and sealed setting of glue rib 71, make the utility model discloses can use under the lower one-way valve block's of hardness the condition, solve the problem that one-way valve block 7 bonds and rivers scurry each other.

Further, the water inlet and outlet cover 12 includes a cover body 122, a water inlet pipe 123 communicated with the water inlet cavity, and a water outlet flow detection seat 8, a rotor cavity 81 communicated with the water outlet cavity 5 is provided in the water outlet flow detection seat 8, a rotor 82 is provided in the rotor cavity 81, and a detection element 83 corresponding to the rotor is provided in the water outlet flow detection seat 8.

In order to facilitate the installation and the disassembly of the rotor 82, an upper cover 84 for sealing the rotor cavity 81 is arranged at the top of the water outlet flow detection seat. Further, in order to guide the impact of the water flow on the blades of the rotor 82, the upper cover 84 is provided with flow holes 841, the flow holes 841 corresponding to the blades of the rotor 82. Therefore, when the water outlet cavity 5 is in a water outlet state, water flows through the rotor cavity 81 and the flow hole 841 in sequence, and the upper cover 84 is further provided with a water outlet pipe 85 communicated with the flow hole 841 for connection of external equipment. Preferably, the detecting element 83 is a hall element, and the blades of the rotor 82 are provided with magnets, so that the flow rate of the water flow can be measured through the mutual induction action of the magnets and the hall element.

In order to limit the water flow to the water inlet pipe 123 in the drainage state, the valve block 11 is further provided with a water inlet hole 114 and a slit valve sheet 115 for blocking the water outlet hole, and the water inlet chamber 4 is communicated with the drum chamber 21 through the water outlet hole 112. Therefore, when the drum 21 is stretched, the water in the inlet chamber 4 will flow through the inlet hole 114 to open the valve sheet 115 and then enter the drum 21. When the drum cavity 21 is compressed, the valve sheet 115 blocks the water inlet hole 114, so that water flows through the water outlet hole 114 to flush the check valve sheet 7 and then flows to the water outlet pipe 85.

In order to improve the sealing performance of the present invention, the water inlet and outlet cover 12 is further provided with a separation inner wall 124, and the water inlet cavity 4 and the water outlet cavity 5 are isolated by the separation inner wall 124. The valve block 11 is provided with an inner sealing ring groove 116 corresponding to the separating inner wall 124, and the bottom of the separating inner wall 124 is provided with a convex ring 117 matched with the inner sealing ring groove 116 to limit the mutual permeation between the water inlet cavity 4 and the water outlet cavity 5, so as to avoid influencing the working efficiency of pumping water. And a sealing gasket 9 is arranged between the water inlet and outlet cover 12 and the valve block 11.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A diaphragm pump comprising a water pumping valve body, a diaphragm and drive means for driving said diaphragm;

2. The diaphragm pump of claim 1 wherein said inlet and outlet covers are further provided with a dividing wall, said inlet and outlet chambers being separated by said dividing wall.

3. The diaphragm pump according to claim 2, wherein said valve block is provided with an inner sealing annular groove corresponding to said dividing inner wall, and the bottom of said dividing inner wall is provided with a convex ring adapted to said inner sealing annular groove;

4. The diaphragm pump of claim 1, wherein said valve block further comprises a water inlet and a valve sheet for closing said water outlet, said water inlet communicating with said drum chamber through said water outlet.

5. The diaphragm pump of claim 1 wherein said raised perimeter comprises an inner perimeter and an outer perimeter, said outlet opening being disposed between said inner perimeter and said outer perimeter.

6. The diaphragm pump of claim 5 wherein there are at least 2 of said outlet openings, and further wherein a separation ridge is provided between said inner and outer peripheral edges for separating adjacent ones of said outlet openings.

7. The diaphragm pump of claim 6 wherein said check valve plate has a sealant rib corresponding to said spacer rib, said water inlet and outlet cover has a pressing member corresponding to said sealant rib, said pressing member pressing said sealant rib against said spacer rib.

8. The diaphragm pump according to claim 1, wherein said inlet and outlet cover comprises a cover body, an inlet pipe communicating with said inlet chamber, and an outlet flow detection base, wherein a rotor chamber communicating with said outlet chamber is provided in said outlet flow detection base, a rotor is provided in said rotor chamber, and said outlet flow detection base is provided with a detection element corresponding to said rotor.

9. The diaphragm pump of claim 8 wherein the top of the outlet flow sensing base is provided with a cover that seals the rotor cavity, the cover being provided with flow holes that correspond to the vanes of the rotor.

10. The diaphragm pump of claim 1 wherein said drive means comprises a motor, an eccentric mass operatively associated with the motor, and a connecting rod operatively associated with the eccentric mass, the bottom of said diaphragm being connected to said connecting rod;