CN210531112U

CN210531112U - Pneumatic diaphragm pump

Info

Publication number: CN210531112U
Application number: CN201921103247.0U
Authority: CN
Inventors: 曹雷钢
Original assignee: Kunshan Huayifeng Coating Equipment Technology Co ltd
Current assignee: Kunshan Huayifeng Coating Equipment Technology Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-15
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a pneumatic diaphragm pump, including the pump body and the apron that is located pump body both sides, all the centre gripping has the diaphragm between the both sides of the pump body and the apron of both sides, through connecting rod fixed connection between two diaphragms, the middle part of the pump body is provided with the through-hole, and the connecting rod can be in the through-hole horizontal slip, and top mount pad and bottom mount pad are installed respectively to the top and the bottom of the pump body, and the outside of one of them apron is provided with the gas pocket, and the gas pocket passes through a hose connection switching-over valve. The utility model discloses under the effect of outside atmospheric pressure, promote the diaphragm at the internal round trip movement of pump to change the atmospheric pressure between two independent cavities in the pump body, and then realize the pump income and pump out, at the in-process that utilizes switching-over valve switch-on gas station, add a counter, through the work number of times of counter record switching-over valve, thereby conveniently calculate the number of times of diaphragm round trip movement in the pump body, and then calculate the ageing degree of diaphragm, the staff of being convenient for in time changes the diaphragm, guarantees the work efficiency of diaphragm pump.

Description

Pneumatic diaphragm pump

Technical Field

The utility model relates to a pump body specifically is a pneumatic diaphragm pump.

Background

The pneumatic diaphragm pump is a new type of conveying machinery, and adopts compressed air as power source, and can pump out and suck up various corrosive liquids, liquids with particles, high viscosity, easy volatilization, flammability and strong toxicity.

Wearing and tearing appear most easily in pneumatic diaphragm pump or damage be inside diaphragm, because do reciprocal action for a long time, and the pressure that bears in the working process is great, and ageing, the performance degradation of diaphragm are the normality, but because the diaphragm is in the inside of the pump body, can't in time discover when appearing damaging, when needs are changed the diaphragm, the staff is generally hardly perceived, to this, we propose a pneumatic diaphragm pump.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a pneumatic diaphragm pump, which comprises a pump body and cover plates positioned at two sides of the pump body, wherein diaphragms are clamped between the two sides of the pump body and the cover plates at the two sides, the two diaphragms are fixedly connected through a connecting rod, two ends of the connecting rod are hermetically connected with the two diaphragms, a through hole is arranged at the middle part of the pump body, the connecting rod can slide left and right in the through hole, a top mounting seat and a bottom mounting seat are respectively arranged at the top and the bottom of the pump body, the top mounting seat and the bottom mounting seat are fixed with the pump body through bolts, two valve balls are respectively arranged inside the top mounting seat and the bottom mounting seat, a compression spring is arranged between the valve balls and the mounting seats, the valve balls are elastically connected with the mounting seats through the compression spring, two runners are respectively arranged at the top and the bottom of the pump body, and the positions of the runners are arranged corresponding to the positions of the valve, and an air hole is formed in the outer side of one of the cover plates, the air hole is connected with a reversing valve through a hose, and the reversing valve is connected with a pump station.

As a preferred technical scheme of the utility model, one side of switching-over valve is provided with and is connected with a counter, the starting number of times that the counter can detect the switching-over valve.

As the utility model discloses a preferred technical scheme, the switching-over valve is pneumatic switching-over valve, just be provided with inlet channel and air outlet channel on the switching-over valve, inlet channel and air outlet channel respectively with a side cover connection, the inside of switching-over valve is provided with the valve rod, is provided with two dogs that can plug up inlet channel and air outlet channel on the valve rod, and the one end of valve rod sets up the pressure chamber, and the other end of valve rod is provided with the spring.

As a preferred technical scheme of the utility model, be provided with the metal on the counter and detect the terminal, and this metal detects the terminal and passes the one end that the switching-over valve is provided with the spring and be located it inside.

As an optimal technical scheme of the utility model, form two relatively independent cavities between the pump body and the diaphragm, be located its bottom of two runners at pump body top extends to two cavities respectively in, is located its top of two runners of pump body bottom extends to two cavities respectively equally.

As a preferred technical scheme of the utility model, be provided with water inlet pipe and outlet pipe on top mount pad and the bottom mount pad respectively, water inlet pipe is located the top of top mount pad, outlet pipe is located the side of bottom mount pad.

As a preferred technical scheme of the utility model discloses a preferred technical scheme, the mouth of pipe with the mouth of pipe all communicates with the interior cavity of the pump body, and mouth of pipe are the internal thread pipe of external water pipe of being convenient for.

The utility model has the advantages that: this kind of pneumatic diaphragm pump promotes the diaphragm under outside atmospheric pressure effect round trip movement in the pump body to change the atmospheric pressure between two independent cavities in the pump body, and then realize the pump income and pump out, at the in-process that utilizes switching-over valve switch-on gas station, add a counter, through the work number of times of counter record switching-over valve, thereby conveniently calculate the number of times of diaphragm round trip movement in the pump body, and then calculate the ageing degree of diaphragm, the staff of being convenient for in time changes the diaphragm, guarantee the work efficiency of diaphragm pump.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of an air-operated diaphragm pump according to the present invention;

fig. 2 is an exploded view of a pneumatic diaphragm pump according to the present invention;

fig. 3 is a schematic cross-sectional structure diagram of an air-operated diaphragm pump according to the present invention;

fig. 4 is a schematic structural view of a reversing valve of the pneumatic diaphragm pump of the present invention.

In the figure: 1. a pump body; 2. a cover plate; 3. a diaphragm; 4. a connecting rod; 5. a through hole; 6. a top mount; 7. a bottom mounting base; 8. a valve ball; 9. a compression spring; 10. a flow channel; 11. air holes; 12. a diverter valve; 13. a water inlet pipe orifice; 14. a water outlet pipe orifice; 15. a counter.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1, 2, 3 and 4, the utility model relates to a pneumatic diaphragm pump, which comprises a pump body 1 and cover plates 2 arranged at two sides of the pump body, diaphragms 3 are clamped between the two sides of the pump body 1 and the cover plates 2 at the two sides, the two diaphragms 3 are fixedly connected through connecting rods 4, two ends of the connecting rods 4 are hermetically connected with the two diaphragms 3, a through hole 5 is arranged at the middle part of the pump body 1, the connecting rods 4 can slide in the through hole 5, a top mounting seat 6 and a bottom mounting seat 7 are respectively arranged at the top and the bottom of the pump body 1, the top mounting seat 6 and the bottom mounting seat 7 are fixed with the pump body 1 through bolts, two valve balls 8 are respectively arranged inside the top mounting seat 6 and the bottom mounting seat 7, a compression spring 9 is arranged between the valve balls 8 and the mounting seats, the valve balls 8 are elastically connected with the mounting seats through the compression springs 9, two flow passages 10 are respectively arranged at the top and the bottom of, and the position of the flow channel 10 is arranged corresponding to the position of the valve ball 8, an air hole 11 is arranged on the outer side of one cover plate 2, the air hole 11 is connected with a reversing valve 12 through a hose, and the reversing valve 12 is connected with a pump station.

Wherein, one side of the reversing valve 12 is provided with a counter 15, and the counter 15 can detect the starting times of the reversing valve 12.

Wherein, switching-over valve 12 is pneumatic switching-over valve, and is provided with inlet channel and outlet channel on the switching-over valve 12, and inlet channel and outlet channel are connected with a side apron 2 respectively, and the inside of switching-over valve is provided with the valve rod, is provided with two dogs that can plug up inlet channel and outlet channel on the valve rod, and the one end of valve rod sets up the pressure chamber, and the other end of valve rod is provided with the spring.

Wherein, a metal detection terminal is arranged on the counter 15, and the metal detection terminal passes through one end of the reversing valve 12 provided with the spring and is positioned inside the reversing valve.

Two relatively independent cavities are formed between the pump body 1 and the diaphragm 3, the bottom ends of the two flow channels 10 positioned at the top of the pump body 1 respectively extend into the two cavities, and the top ends of the two flow channels 10 positioned at the bottom of the pump body 1 also respectively extend into the two cavities.

Wherein, a water inlet pipe orifice 13 and a water outlet pipe orifice 14 are respectively arranged on the top mounting seat 6 and the bottom mounting seat 7, the water inlet pipe orifice 13 is positioned at the top end of the top mounting seat 6, and the water outlet pipe orifice 14 is positioned at the side surface of the bottom mounting seat 7.

Wherein, the water inlet pipe orifice 13 and the water outlet pipe orifice 14 are both communicated with the cavity in the pump body 1, and the water inlet pipe orifice 13 and the water outlet pipe orifice 14 are both internally threaded pipes convenient for externally connecting water pipes.

The working principle is as follows: firstly, the diaphragm pump is installed, the cover plates 2 on the two sides are fixed on the two sides of the pump body 1 through screws, simultaneously, the edges of the cover plates 2 and the edges of the pump body 1 clamp and seal the edges of the diaphragm 3, two independent chambers are formed between the two sides of the pump body 1 and the diaphragm 3, wherein the cover plate on one side is provided with air holes, the air holes are connected with the reversing valves 12 through hoses, the number of the hoses is two, one is used for pumping gas in, the other is used for discharging the gas, the reversing valves 12 are connected with an air station, finally, the water inlet pipe orifices 13 and the water outlet orifices 14 on the top mounting seat 6 and the bottom mounting seat 7 are respectively connected with water pipes, when the diaphragm pump works, the air station pumps the gas through the reversing valves 12, firstly, the valve rod in the reversing valves 12 transversely moves under the action of air pressure to extrude the compression springs, the convenient surface of the valve rod is provided with two check blocks, the two check, when one of the channels is blocked, the other channel is in an open state, for example, when the air inlet channel is opened, air enters the pump body 1 through the air inlet channel to push the diaphragm 3 to move transversely in the pump body 1, the volume of the chambers at two sides of the pump body changes during the transverse movement, the internal pressure changes, the ball valves 8 at the top and the bottom of the ball valves are jacked up or tightly sucked under the action of pressure, the counter 15 records the working times of the reversing valve 12 during the working process of the reversing valve 12, the valve rod inside the reversing valve 12 and the metal detection terminal of the counter 15 are sequentially recorded once when being contacted, the working times of the reversing valve 12 are recorded through the counter 15, so that the times of the diaphragm 3 moving back and forth in the pump body 1 can be conveniently calculated, the aging degree of the diaphragm 3 can be calculated, and the diaphragm 3 can be conveniently replaced by a worker in time, the working efficiency of the diaphragm pump is ensured.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic diaphragm pump comprises a pump body (1) and cover plates (2) positioned on two sides of the pump body, and is characterized in that diaphragms (3) are clamped between two sides of the pump body (1) and the cover plates (2) on the two sides, the two diaphragms (3) are fixedly connected through connecting rods (4), two ends of each connecting rod (4) are connected with the two diaphragms (3) in a sealing manner, a through hole (5) is formed in the middle of the pump body (1), the connecting rods (4) can slide in the through holes (5) left and right, a top mounting seat (6) and a bottom mounting seat (7) are respectively installed at the top and the bottom of the pump body (1), the top mounting seat (6) and the bottom mounting seat (7) are fixed with the pump body (1) through bolts, two valve balls (8) are respectively arranged inside the top mounting seat (6) and the bottom mounting seat (7), be provided with compression spring (9) between valve ball (8) and the mount pad, and valve ball (8) pass through compression spring (9) and mount pad elastic connection, the top and the bottom of the pump body (1) still are provided with two runners (10) respectively, just the position of runner (10) with the position of valve ball (8) corresponds the setting, one of them the outside of apron (2) is provided with gas pocket (11), gas pocket (11) are through hose connection a switching-over valve (12), the pump station is connected in switching-over valve (12).

2. An air operated diaphragm pump according to claim 1, characterized in that a counter (15) is connected to one side of the reversing valve (12), said counter (15) being capable of detecting the number of actuations of the reversing valve (12).

3. An air operated diaphragm pump according to claim 2, wherein the reversing valve (12) is a pneumatic reversing valve, an air inlet channel and an air outlet channel are arranged on the reversing valve (12), the air inlet channel and the air outlet channel are respectively connected with a side cover plate (2), a valve rod is arranged inside the reversing valve, two stop blocks capable of blocking the air inlet channel and the air outlet channel are arranged on the valve rod, a pressure cavity is arranged at one end of the valve rod, and a spring is arranged at the other end of the valve rod.

4. An air operated diaphragm pump according to claim 3, characterized in that the counter (15) is provided with a metal detection terminal through and inside the end of the reversing valve (12) where the spring is provided.

5. An air operated diaphragm pump according to claim 1, characterized in that two relatively independent chambers are formed between the pump body (1) and the diaphragm (3), the two flow channels (10) at the top of the pump body (1) extending into the two chambers at their bottom ends, respectively, and the two flow channels (10) at the bottom of the pump body (1) also extending into the two chambers at their top ends, respectively.

6. An air operated diaphragm pump according to claim 1, characterized in that the top mount (6) and the bottom mount (7) are provided with a water inlet nozzle (13) and a water outlet nozzle (14), respectively, the water inlet nozzle (13) being located at the top end of the top mount (6) and the water outlet nozzle (14) being located at the side of the bottom mount (7).

7. An air operated diaphragm pump according to claim 6, characterized in that the water inlet (13) and outlet (14) nozzles are both in communication with a chamber in the pump body (1), and the water inlet (13) and outlet (14) nozzles are both internally threaded tubes facilitating external connection of water pipes.