CN219570298U - Miniature four-cavity diaphragm pump - Google Patents

Abstract

The utility model discloses a miniature four-cavity diaphragm pump, which comprises a pump body and a pump cover structure; the pump cover structure is provided with a water inlet valve assembly and a water outlet valve assembly, and the water inlet valve assembly and the water outlet valve assembly are respectively divided into a water inlet valve assembly and a water outlet valve assembly; the water inlet valve assembly comprises a water inlet valve seat and a water inlet valve which are integrally formed; the water outlet valve assembly comprises a water outlet valve seat and a water outlet valve which are integrally formed. In order to improve the heat dissipation effect, the diaphragm pump integrates the heat dissipation fan at the rear end of the pump body, and the front end of the pump cover is provided with the air inlet, so that air is introduced, and cooling air can simultaneously dissipate heat on the surface of the motor, the bearing and the diaphragm by the cooling air under the rotation of the heat dissipation fan; in addition, the water inlet valve, the water outlet valve and the valve seat are of an integrated structure, so that the service life can be prolonged due to the bearing of pressure during working.

Description

Miniature four-cavity diaphragm pump

Technical Field

The utility model relates to the technical field of water pumps, in particular to a miniature four-cavity diaphragm pump.

Background

At present, along with the development of scientific technology, in the technical field of agriculture and forestry, the performance requirement of a user on a diaphragm pump is increasingly improved, and the three-cavity diaphragm pump in the prior art is characterized by high working pressure of the diaphragm pump and good atomization effect. The utility model has the advantages of its shortcoming is that the power is big, and the flow is little, and it is not good to use in the field that requires great to the flow, and to this shortcoming, market has promoted disjunctor double pump, and two micropumps work simultaneously, through the mode of establishing ties, and the last pump is from the last pump water sucking compression of pumping out. Its advantages are low power of two micropumps, low cost, and high efficiency. The two micro pumps work simultaneously, the coordination is poor, the heat dissipation effect is poor, the latter pump is always in a compressed state, and the motor is easy to excessively generate heat and burn. The motor does not dissipate heat, the working heat of the bearing is transferred to the diaphragm, and the diaphragm is more easily subjected to permanent deformation at high temperature, so that the diaphragm is damaged.

At present, two fixing modes are adopted for the diaphragm of the diaphragm pump at home and abroad. The first type of membrane is an integral membrane with inverted tooth type fixed posts. And (3) smearing lubricant on the inverted teeth, and then directly installing the inverted tooth-shaped fixing column on a piston push rod of the bearing sleeve through a hydraulic machine or a piston block for knocking the diaphragm, and fixing through the inverted teeth of the fixing column. When the diaphragm pump works, because the eccentric rotation has a certain inclination angle, the piston push rod of the bearing sleeve and the piston block of the diaphragm vibrate up and down together, and meanwhile, the diaphragm pump swings left and right in a small amplitude. The diaphragm material has certain hardness, is shore 80A generally, so the inverted tooth-shaped fixed column of piston push rod and diaphragm can have relative displacement, and the fixed clearance of the inverted tooth-shaped fixed column of diaphragm and the piston push rod of bearing housing can increase gradually after long-term work, leads to the compression relative stroke of diaphragm to shorten, leads to diaphragm pump pressure reduction. The second type of diaphragm is a split diaphragm, which is fixed to the piston rod of the bearing housing by screws passing through the piston blocks. The seal between the diaphragm and the bearing housing is formed by co-extruding the diaphragm with the piston rod of the bearing housing and the piston block. When the diaphragm pump starts to work, the piston block and the piston push rod of the bearing vibrate up and down at a high speed, the screw loosens to cause insufficient extrusion force of the piston block and the piston push rod, and water leakage between the diaphragm and the bearing sleeve occurs. When the diaphragm reacts with corrosive solvents, after the diaphragm contracts due to swelling reaction, the tightness of the piston block and the piston push rod is insufficient, high-pressure liquid enters from screw holes of the piston block and flows out from between the diaphragm and the bearing sleeve to cause water leakage, so that the bearing is rusted and blocked, and the motor is burnt.

The power parts of the three-cavity diaphragm pump and the double pump in the current market are not provided with cooling fans, the motor, the bearing and the diaphragm have poor cooling effect, the diaphragm works for a long time, the water sucking capacity of the diaphragm pump is easy to be reduced, the pressure is reduced, and the motor is burnt out due to excessive heating.

Accordingly, based on the above technical problems, a person skilled in the art is required to develop a micro four-chamber diaphragm pump.

Disclosure of Invention

The utility model aims to provide a miniature four-cavity diaphragm pump, which is characterized in that a heat dissipation fan blade is added at the tail part of a motor to simultaneously dissipate heat and cool the surface of the motor, a bearing and a diaphragm; meanwhile, the valve with the valve seat integrated structure is adopted as the water inlet and outlet passage, so that the structural strength is effectively improved.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model relates to a miniature four-cavity diaphragm pump, which comprises:

a pump body; and

the pump cover structure is arranged at the front end of the pump body;

the inside of the pump body is a cavity, and the joint of the pump cover structure and the pump body is formed into four cavities;

the pump cover structure is provided with a water inlet and outlet valve assembly which is divided into a water inlet valve assembly and a water outlet valve assembly;

the water inlet valve assembly is communicated with the pump body through four cavities, and the pump body is communicated with the water outlet valve assembly;

the water inlet valve assembly comprises a water inlet valve seat and a water inlet valve which are integrally formed;

the water outlet valve assembly comprises a water outlet valve seat and a water outlet valve which are integrally formed.

Further, a heat dissipation assembly is integrated at one end of the pump body, which is far away from the pump cover structure;

the heat dissipation assembly includes:

a radiator fan housing assembled and fixed with the pump body; and

a cooling fan installed inside the cooling fan housing;

the central shaft of the cooling fan extends along the axial direction of the pump body and is rotationally connected with the pump body and the pump cover structure through a bearing;

and a plurality of heat dissipation holes are uniformly distributed on the outer side surface of the heat dissipation fan.

Further, the pump cover structure includes:

the pump cover is assembled and fixed with the pump body through a flange plate;

the valve seat is integrated on one side of the pump cover, far away from the pump body, the valve seat is of an integrated structure, one end of the valve seat matched with the water inlet valve is configured to be a water inlet valve seat, and one end of the valve seat matched with the water outlet valve is configured to be a water outlet valve seat;

the water inlet valve and the valve seat are integrally formed, and the water outlet valve and the valve seat are integrally formed.

In the technical scheme, the miniature four-cavity diaphragm pump provided by the utility model has the following beneficial effects:

in order to improve the heat dissipation effect, the diaphragm pump integrates the heat dissipation fan at the rear end of the pump body, and the front end of the pump cover is provided with the air inlet, so that air is introduced, and cooling air can simultaneously dissipate heat on the surface of the motor, the bearing and the diaphragm by the cooling air under the rotation of the heat dissipation fan; in addition, the water inlet valve, the water outlet valve and the valve seat are of an integrated structure, so that the service life can be prolonged due to the bearing of pressure during working.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a micro four-chamber diaphragm pump according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a micro four-chamber diaphragm pump according to a second embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a pump cover removing structure of a micro four-chamber diaphragm pump according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a radiator fan of a micro four-chamber diaphragm pump according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a water inlet and outlet valve assembly of a miniature four-chamber diaphragm pump according to an embodiment of the present utility model;

fig. 6 is a cross-sectional view of a water inlet and outlet valve assembly of a miniature four-chamber diaphragm pump according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a pump body; 2. a pump cover structure; 3. a water inlet and outlet valve assembly; 4. a heat dissipation assembly;

101. a four-chamber;

201. a flange plate;

301. a water inlet valve; 302. a water outlet valve; 303. a valve seat;

401. a radiator fan housing; 402. a heat radiation fan; 403. a heat radiation hole; 404. a central axis.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

See fig. 1-6;

a miniature four-chamber diaphragm pump of this embodiment, the diaphragm pump includes:

a pump body 1; and

a pump cover structure 2 mounted at the front end of the pump body 1;

the interior of the pump body 1 is a cavity, and the joint of the pump cover structure 2 and the pump body 1 is formed into a four-cavity 101;

the pump cover structure 2 is provided with a water inlet and outlet valve assembly 3 which is divided into a water inlet valve assembly and a water outlet valve assembly;

the water inlet valve assembly is communicated with the pump body 1 through the four cavities 101, and the pump body 1 is communicated with the water outlet valve assembly;

the water inlet valve assembly comprises an integrally formed water inlet valve seat and a water inlet valve 301;

the outlet valve assembly includes an integrally formed outlet valve seat and outlet valve 302.

Specifically, this embodiment discloses a novel diaphragm pump structure, it has improved business turn over water valve assembly 3 at first from the angle that bears operating pressure, and intake valve 301 and disk seat 303, and the structure that all is as an organic whole with disk seat 303 of outlet valve 302, because intake and outlet valve assembly 3 department is the position of circulation of liquid, consequently, this part design can further improve structural stability with disk seat 303 integrated into one piece's structure.

Secondly, the diaphragm pump of the embodiment is further improved from the heat dissipation angle, and one end, far away from the pump cover structure 2, of the pump body 1 of the embodiment is integrated with a heat dissipation component 4;

the heat dissipation assembly 4 includes:

a radiator fan housing 401 assembled and fixed with the pump body 1; and

a radiator fan 402 mounted inside the radiator fan housing 401;

the central shaft 404 of the cooling fan 402 extends along the axial direction of the pump body 1 and is rotationally connected with the pump body 1 and the pump cover structure 2 through bearings;

a plurality of heat radiation holes 403 are uniformly distributed on the outer surface of the heat radiation fan 402.

Preferably, the pump cover structure of the present embodiment includes:

the pump cover is assembled and fixed with the pump body through a flange 201;

the valve seat 303 is integrated on one side of the pump cover, far from the pump body 1, the valve seat 303 is of an integrated structure, one end of the valve seat 303 matched with the water inlet valve 301 is configured as a water inlet valve seat, and one end of the valve seat 303 matched with the water outlet valve 302 is configured as a water outlet valve seat;

the water inlet valve 301 and the valve seat 303 are integrally formed, and the water outlet valve 302 and the valve seat 303 are integrally formed.

In the technical scheme, the miniature four-cavity diaphragm pump provided by the utility model has the following beneficial effects:

in order to improve the heat dissipation effect, the diaphragm pump of the utility model integrates the heat dissipation fan 402 at the rear end of the pump body 1, and the front end of the pump cover is provided with the air inlet, so that air is introduced, and cooling air can simultaneously dissipate heat on the surface of the motor, the bearing and the diaphragm of the motor under the rotation of the heat dissipation fan 402; in addition, the water inlet valve, the water outlet valve and the valve seat are of an integrated structure, so that the service life can be prolonged due to the bearing of pressure during working.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (3)

1. A miniature four-chamber diaphragm pump, comprising:

a pump body (1); and

a pump cover structure (2) arranged at the front end of the pump body (1);

the inside of the pump body (1) is a cavity, and the joint of the pump cover structure (2) and the pump body (1) is formed into a four-cavity (101);

the pump cover structure (2) is provided with a water inlet valve assembly (3), and the water inlet valve assembly (3) is divided into a water inlet valve assembly and a water outlet valve assembly;

the water inlet valve assembly is communicated with the pump body (1) through four cavities (101), and the pump body (1) is communicated with the water outlet valve assembly;

the water inlet valve assembly comprises a water inlet valve seat and a water inlet valve (301) which are integrally formed;

the outlet valve assembly includes an integrally formed outlet valve seat and outlet valve (302).

2. A miniature four-chamber diaphragm pump according to claim 1, characterized in that a heat dissipating component (4) is integrated at the end of the pump body (1) remote from the pump cover structure (2);

the heat dissipation assembly (4) includes:

a radiator fan housing (401) assembled and fixed with the pump body (1); and

a radiator fan (402) mounted inside the radiator fan housing (401);

a central shaft (404) of the cooling fan (402) extends along the axial direction of the pump body (1) and is rotationally connected with the pump body (1) and the pump cover structure (2) through bearings;

a plurality of heat dissipation holes (403) are uniformly distributed on the outer side surface of the heat dissipation fan (402).

3. A miniature four-chamber diaphragm pump according to claim 1, characterized in that the pump cap structure (2) comprises:

the pump cover is assembled and fixed with the pump body (1) through a flange plate (201);

the valve seat (303) is integrated on one side of the pump cover, which is far away from the pump body (1), the valve seat (303) is of an integrated structure, one end of the valve seat (303) matched with the water inlet valve (301) is configured as a water inlet valve seat, and one end of the valve seat (303) matched with the water outlet valve (302) is configured as a water outlet valve seat;

the water inlet valve (301) and the valve seat (303) are integrally formed, and the water outlet valve (302) and the valve seat (303) are integrally formed.