CN205154571U - Diaphragm pump - Google Patents

Abstract

The utility model discloses a diaphragm pump, which comprises a pump body provided with a cavity, a plurality of one-way valves slidingly connected to the pump body, a diaphragm plate used to drive the one-way valve to slide up and down, and a driving device arranged at the lower end of the pump body ; The pump body is also provided with a liquid inlet port communicated with the cavity and a number of mounting holes for installing the check valve, a number of liquid outlets located on the periphery of the mounting hole and communicated with the cavity, and a storage tank communicated with the liquid outlet The liquid chamber is a liquid outlet channel connected with the liquid storage chamber; the lower end of the one-way valve is provided with a scraper that is slidably connected with the liquid storage chamber, and the upper end is provided with a limiting part for limiting the position, and the one-way valve is slidably connected to the An installation hole; the diaphragm disc is provided with a cavity corresponding to the one-way valve. The utility model adopts a plurality of one-way valves to control the flow direction of the liquid, and changes the size of the volume of the diaphragm disc and the one-way valve through the driving device, so that the one-way valve moves up and down, and the liquid in the liquid storage chamber is pumped out. The utility model has a reasonable design and can be vigorously popularized and applied in daily life.

Description

a diaphragm pump

technical field

The utility model relates to a pump, in particular to a diaphragm pump.

Background technique

At present, the diaphragm pumps on the market mainly use single-piece diaphragm pumps, which have low frequency and low flow rate, and the diaphragm is mainly made of nitrile rubber. The water will turn yellow for a long time, and it is difficult to pass the drinking water standard.

Utility model content

In order to overcome the disadvantages of the above-mentioned prior art, the purpose of this utility model is to provide a diaphragm pump, which uses a plurality of one-way valves to control the outflow of liquid, so as to increase the flow rate and frequency of the pump.

The technical scheme of the utility model is: a diaphragm pump, including a pump body with a cavity, a number of one-way valves slidingly connected to the pump body, and a diaphragm plate for driving the one-way valve to slide up and down, located at the lower end of the pump body The drive device; the pump body is also provided with a liquid inlet connected to the cavity and a number of mounting holes for installing a one-way valve, a number of liquid outlets located on the periphery of the mounting hole and connected with the cavity, and connected to the liquid outlet The connected liquid storage chamber and the liquid outlet channel connected with the liquid storage chamber; the lower end of the one-way valve is provided with a scraper that is slidably connected with the liquid storage chamber, and the upper end is provided with a limiting part for limiting. Slidingly connected to the mounting hole; the diaphragm plate is provided with a cavity corresponding to the one-way valve.

Its further technical solution is: the driving device is a motor, and its output end is provided with a rotating plate; the rotating plate is provided with several protrusions for squeezing the cavity of the diaphragm disc; when the protrusions squeeze the diaphragm disc, The volume between the diaphragm disc and the scraper is constantly changing.

Its further technical solution is: the drive device is a linear drive mechanism, and when its movable end moves up and down, it presses against the diaphragm disc, and the volume between the diaphragm disc and the scraper constantly changes.

Its further technical scheme is: the driving device is a motor, and its output end is provided with a diaphragm rotating plate; the lower end of the diaphragm plate is provided with a fixed end; the diaphragm rotating plate is provided with a mounting part for installing the fixed end; the motor When the diaphragm disc is driven to rotate, the volume between the diaphragm disc and the scraper changes continuously.

Its further technical solution is: the motor and the rotating plate are connected through an eccentric transmission.

Its further technical solution is: the number of the one-way valve is three; the number of the installation holes is three, which are arranged on the same arc with the same axis as the center of the circle.

Its further technical solution is: the material of the one-way valve and the diaphragm disc is silica gel.

Its further technical solution is: the diaphragm pump further includes a connecting piece arranged between the driving device and the pump body; the diaphragm disc and the driving device are fixedly installed on the connecting piece.

Compared with the prior art, the technical effect of the utility model is: a diaphragm pump uses a plurality of one-way valves to control the liquid in the cavity to flow to the liquid storage chamber, and the lower end of the one-way valve is provided with a scraper that is slidably connected to the liquid storage chamber. The driving device drives the one-way valve to move up and down, which can not only control the opening state of the one-way valve, but also pump the liquid in the liquid storage chamber to the liquid outlet channel through the up and down movement of the scraper. Moreover, the material of the one-way valve and the diaphragm plate is silica gel, which will not change color after soaking in water for a long time, and will not have a rubbery smell, and will not affect the taste of the water. The utility model has reasonable design and strong practicability, and can be vigorously popularized and applied in the market.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Description of drawings

Fig. 1 is an exploded view of a specific embodiment of a diaphragm pump of the present invention.

Fig. 2 is a cross-sectional view of the embodiment of Fig. 1 .

Fig. 3 is a perspective view of the pump body of the embodiment in Fig. 1 .

reference sign

10 diaphragm pump 2 pump body

21 cavity 22 liquid inlet

23 Mounting hole 24 Liquid outlet

25 liquid storage cavity 26 liquid outlet channel

3 check valve 31 scraper

32 limit part 4 diaphragm plate

41 fixed end 42 cavity

5 drive device 511 installation part

51 Diaphragm rotating plate 6 connectors

detailed description

In order to fully understand the technical content of the utility model, the technical solution of the utility model is further introduced and explained below in combination with schematic diagrams, but is not limited thereto.

As shown in Figure 1, a diaphragm pump 10 includes a pump body 2 with a cavity 21, three one-way valves 3 slidingly connected to the pump body 2, and a diaphragm plate 4 for driving the one-way valve 3 to slide up and down. , the drive device 5 located at the lower end of the pump body 2 is located at the connector 6 between the drive device and the pump body.

The driving device 5 is a motor, and its output end is provided with a diaphragm rotating plate 51 . The diaphragm disc 4 and the driving device 5 are fixedly installed on the connecting piece 6 .

The lower end of the diaphragm disc 4 is provided with a fixed end 41 , and the diaphragm rotating plate 51 is provided with a mounting portion 511 for mounting the fixed end 41 .

As shown in Figure 2, the pump body 2 is also provided with a liquid inlet port 22 communicated with the cavity 21 and three mounting holes (not marked in the figure) for installing the check valve 3, located in the mounting hole (not marked in the figure). ) outer periphery and a plurality of liquid outlet holes 24 communicating with the cavity 21, a liquid storage chamber 25 communicating with the liquid outlet holes 24, and a liquid outlet channel 26 communicating with the liquid storage chamber 25.

The diaphragm disc 4 is provided with cavities 42 corresponding to the number and angle of the one-way valve 3 .

The lower end of the one-way valve 3 is provided with a scraper 31 slidably connected with the liquid storage chamber 25, and the upper end is provided with a stopper 32 for limiting the position. The one-way valve 3 is slidably connected with a mounting hole (not marked in the figure).

The motor and the diaphragm rotating plate 51 are connected through an eccentric wheel (not shown in the figure). When the motor drives the diaphragm disc 4 to rotate, the volume between the diaphragm disc 4 and the scraper 31 changes continuously, and the liquid between the two is due to The constant change of the cavity 42 pushes the one-way valve 3 to move up or down. When the one-way valve 3 moves downward, the liquid in the cavity 21 flows into the liquid storage cavity 25 through the liquid outlet hole 24, and the liquid in the cavity 21 decreases, and the liquid from the outside enters the pump body 2 through the liquid inlet port 22. . When the one-way valve 3 moves to a certain position, the stopper 32 stops it from moving downwards, and the interference between the one-way valve 3 and the diaphragm disc 4 is never avoided. When the one-way valve 3 moves upward, the scraper 31 generates pressure on the liquid in the liquid storage chamber 25 , so that the liquid is pressed into the liquid outlet channel 26 and discharged from the pump body 2 .

The material of the one-way valve 3 and the diaphragm disc 4 is silica gel. When there is liquid not completely discharged in the liquid storage chamber 25, the one-way valve 3 and the diaphragm disc 4 made of the silica gel material will not deteriorate the water quality, thereby keeping the water drinking quality.

As shown in Figure 3, the number of mounting holes 23 on the pump body 2 is three, and they are arranged on the same arc with the same axis as the center of the circle, and the number of one-way valves (combined with Figure 1) is three, It is slidingly connected to the mounting hole 23 . The diaphragm disc (combined with Figure 2) is provided with a cavity corresponding to the one-way valve. When the diaphragm plate (combined with FIG. 2 ) rotates once, the one-way valve (combined with FIG. 2 ) pumps liquid three times. Therefore, the frequency of its pumped liquid is relatively high, and the overall flow rate is also increased at the same time.

In other embodiments, there may be multiple installation holes, and they may be unevenly arranged at the bottom of the pump body.

In other embodiments, the driving device is a motor, and the output end is provided with a rotating plate, and the rotating plate is provided with a plurality of protrusions for squeezing the cavity of the diaphragm disc. When the protrusions squeeze the diaphragm disc, the gap between the diaphragm disc and the scraper The volume between the valves is constantly changing, causing the check valve to slide up or down.

In other embodiments, the drive device is a linear drive mechanism, and when its movable end moves up and down, it presses against the diaphragm disc, and the volume between the diaphragm disc and the scraper changes continuously, thereby making the one-way valve slide upward or downward.

In other embodiments, the angles of the cavities may also be unevenly distributed on the diaphragm disk.

The above only uses examples to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation of the utility model is limited to this, and any technical extension or re-creation done according to the utility model shall be Protected by the utility model. The scope of protection of the utility model shall be determined by the claims.

Claims (8)

1. a diaphragm pump, is characterized in that, comprises the pump housing being provided with die cavity, being slidably connected to some one-way valves of the pump housing, the diaphragm disk slided up and down for driving one-way valve, being located at the drive unit of pump housing lower end; The described pump housing is also provided with the liquid feeding end and some mounting holes for installing one-way valve that are communicated with die cavity, is positioned at mounting hole periphery and the some liquid outlet openings be communicated with die cavity, the liquid storage cylinder be communicated with liquid outlet opening, the liquid outlet channel be communicated with liquid storage cylinder; The lower end of described one-way valve is provided with the scraper plate be slidably connected with liquid storage cylinder, and its upper end is provided with for spacing limited part, and one-way valve is slidably connected to mounting hole; Described diaphragm disk is provided with the cavity corresponding with one-way valve.

2. diaphragm pump according to claim 1, is characterized in that, described drive unit is motor, and its output terminal is provided with rotor plate; Described rotor plate is provided with the projection in some chambeies of circling or whirl in the air for presses against diaphragm; During described protruding presses against diaphragm dish, the volume between diaphragm disk and scraper plate constantly changes.

3. diaphragm pump according to claim 1, is characterized in that, described drive unit is straight line driving mechanism, and pressure diaphragm disk in top when its movable end moves up and down, the volume between diaphragm disk and scraper plate constantly changes.

4. diaphragm pump according to claim 1, is characterized in that, described drive unit is motor, and its output terminal is provided with barrier film rotor plate; The lower end of described diaphragm disk is provided with fixed end; Described barrier film rotor plate is provided with the assembly department for installing fixed end; When described motor drives diaphragm disk to rotate, the volume between diaphragm disk and scraper plate constantly changes.

5. diaphragm pump according to claim 4, is characterized in that, is in transmission connection between described motor and rotor plate by an eccentric wheel.

6. diaphragm pump according to claim 1, is characterized in that, the quantity of described one-way valve is 3; The quantity of described mounting hole is 3, and what be the radians such as the center of circle with same axle center is arranged on same circular arc.

7. diaphragm pump according to claim 1, is characterized in that, the material of described one-way valve and diaphragm disk is silica gel.

8. diaphragm pump according to claim 1, is characterized in that, described diaphragm pump also comprises the link be located between drive unit and the pump housing; Described diaphragm disk and drive unit are fixedly installed in link.