Pressurizing anti-siphon diaphragm pump

Abstract

The utility model discloses a pressure boost anti-siphon diaphragm pump, including packing cup, valve plate, middle plate, upper cover and drive component, packing cup cover is provided at the one end of valve plate to form a plurality of diaphragm chamber, middle plate cover is provided at the other end of valve plate to form water inlet cavity, middle cavity and drainage cavity, water inlet cavity is provided with first water inlet, middle cavity is provided with second water inlet and third water inlet hole, and the upper cover is provided with second water inlet and third water outlet hole. The drainage cavity is provided with a water outlet, the sealing shell is provided with a water stop valve, the volumes of the first diaphragm chamber and the second diaphragm chamber are changed, a medium in the first diaphragm chamber is compressed, pumped out through a first water outlet hole and sucked into the second diaphragm chamber from a second water inlet hole at the same time, and when the leather cup blows towards the original direction again, the volume of the second diaphragm chamber is decreased, and the pressure intensity is increased; when the second diaphragm chamber blows water, a third umbrella pin is opened, a medium in the second diaphragm chamber is allowed to be pumped out through a second water outlet hole, meanwhile, the medium enters a drainage cavity from a third water inlet hole to prepare for next circulation, when the second diaphragm chamber blows again, the medium is pressurized, and the lift of the pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a pressurized anti-siphon diaphragm pump. Background Art

[0002] Electric micro diaphragm pumps are widely used in water industry, agriculture, medical treatment, automobile, shipbuilding and other industries. The motor drives the transmission device to make the diaphragm produce piston-like transmission. The diaphragm piston movement compresses the volume in the diaphragm cavity to achieve the function of liquid extraction.

[0003] In a diaphragm pump, the diaphragm (or piston) separates the working chamber of the pump from the drive chamber. When the drive chamber is under pressure, the diaphragm moves toward the working chamber, thereby compressing the liquid in the working chamber and causing it to flow out. When the pressure in the drive chamber decreases, the diaphragm moves in the opposite direction, sucking in new liquid. In this process, the reciprocating motion of the diaphragm forms the pumping capacity of the pump. The diaphragm pump can only reach a fixed maximum head in each movement of the piston (or diaphragm). In addition, the diaphragm pumps on the market now all have a primitive single piston to form the maximum head, and the use effect is poor. Utility Model Content

[0004] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a pressurized anti-siphon diaphragm pump, which can effectively solve the technical problem that the diaphragm pumps on the current market all form the maximum lift with an original single piston.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a pressurized anti-siphon diaphragm pump, comprising a leather bowl, a valve plate, a middle plate, an upper cover and a drive assembly, the upper cover is provided with a water inlet nozzle and a water outlet nozzle, the water inlet nozzle is provided with a water inlet channel, the water outlet nozzle is provided with a water outlet channel, the leather bowl cover is provided at one end of the valve plate to form a plurality of diaphragm chambers, the middle plate cover is provided at the other end of the valve plate to form a water inlet cavity, an intermediate cavity and a drainage cavity, the water inlet cavity is provided with a first water inlet, the intermediate cavity is provided with a second water inlet and a third water inlet hole, the drainage cavity is provided with a water outlet, the middle plate cover is provided with a sealing shell, the sealing shell is equipped with a water stop valve covering the second water inlet, the water inlet channel is connected with the first water inlet, the water inlet cavity, the intermediate cavity, the third water inlet hole, the drainage cavity, the second water inlet, the water outlet and the water outlet channel in sequence, the water inlet cavity is movably inserted with a first umbrella ding and a second umbrella ding, and the intermediate cavity is movably inserted with a third umbrella ding.

[0006] Furthermore, the driving assembly includes a driving member, an eccentric wheel, a connecting rod and a swing frame. The swing frame is arranged below the leather cup and connected thereto. The output shaft of the driving member is connected to the eccentric wheel, one end of the connecting rod is connected to the eccentric wheel, and the other end of the connecting rod is connected to the swing frame. The driving member drives the swing frame to rotate and swing through the eccentric wheel, and causes the swing frame to squeeze the leather cup for pumping.

[0007] Furthermore, the multiple diaphragm chambers are respectively the first diaphragm chamber and the second diaphragm chamber, one end of the valve plate is provided with a first water inlet hole communicating with the first water inlet, the first water inlet hole is communicated with the first diaphragm chamber, the middle part of the valve plate is provided with a first water outlet hole and a second water inlet hole, the first water outlet hole is communicated with the first diaphragm chamber, the second water inlet hole is communicated with the second diaphragm chamber, the other end of the valve plate is provided with a second water outlet hole communicating with the third water inlet hole, the second water outlet hole is communicated with the second diaphragm chamber.

[0008] Furthermore, the first water inlet, the second water inlet, the third water inlet hole and the water outlet are all arranged on the middle plate, the first water inlet is arranged at one end of the middle plate, the second water inlet and the third water inlet hole are arranged in the middle of the middle plate, and the water outlet is arranged at the other end of the middle plate.

[0009] Furthermore, the first umbrella-shaped movable cover is arranged on the first water inlet hole, the second umbrella-shaped movable cover is arranged on the first water outlet hole, and the third umbrella-shaped movable cover is arranged on the second water outlet hole.

[0010] Furthermore, the middle plate is provided with a raised portion, the interior of the raised portion is hollow, and an inner groove is provided on the outer side of the raised portion, and a protrusion that is snap-fitted with the inner groove is provided on the outer side of the sealing shell.

[0011] Furthermore, the protrusion is provided with a liquid outlet channel, one end of the liquid outlet channel is communicated with the second water inlet, and the other end of the liquid outlet channel is communicated with the water outlet.

[0012] Furthermore, one end of the sealing shell is provided with a water inlet through-hole communicating with the water inlet channel, and the other end of the sealing shell is provided with a water outlet through-hole communicating with the water outlet channel.

[0013] Furthermore, the upper cover is provided with a protrusion, the interior of the protrusion is hollow, a spring is installed inside the protrusion, the upper end of the spring is arranged on the bottom surface of the protrusion, and the lower end of the spring is arranged on the surface of the water stop valve.

[0014] Furthermore, a sealing gasket is provided between the bottom surface of the middle plate and the valve plate, and the opening position of the sealing gasket corresponds to the positions of the first water inlet hole, the first water outlet hole, the second water inlet hole and the second water outlet hole provided on the valve plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] Through the reciprocating agitation of the leather bowl, the volume of the first diaphragm chamber and the second diaphragm chamber is changed, the medium in the first diaphragm chamber is compressed, pumped out through the first water outlet, and at the same time is sucked into the second diaphragm chamber from the second water inlet. When the leather bowl agitates in the original direction again, the volume of the second diaphragm chamber becomes smaller, the pressure increases, and the third umbrella opens, allowing the medium in the second diaphragm chamber to be pumped out through the second water outlet. At the same time, the medium enters the drainage cavity from the third water inlet, preparing for the next cycle. When the second diaphragm chamber agitates again, it has a pressurized effect on the medium. This method helps to increase the pump head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the utility model;

[0019] Figure 3 This is an exploded view of the structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the assembly structure of the leather cup, valve plate, sealing gasket, middle plate and sealing shell of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the middle plate of the utility model.

[0022] Numbers in the figure:

[0023] 100, upper cover; 101, water inlet nozzle; 1011, water inlet channel; 102, protrusion; 103, water outlet nozzle; 1031, water outlet channel; 200, sealing shell; 201, water stop valve; 202, spring; 203, water inlet hole; 204, protrusion; 205, water outlet hole; 300, middle plate; 301, first water inlet; 302, water outlet; 303, second water inlet; 304, protrusion; 305, inner groove; 306, liquid outlet channel; 307, third water inlet hole; 308, drain Water cavity; 400, sealing gasket; 500, valve plate; 501, first tamper; 502, second tamper; 503, third tamper; 504, first water inlet; 505, first water outlet; 506, second water inlet; 507, second water outlet; 600, cylinder body; 700, leather cup; 701, swing frame; 702, connecting rod; 703, eccentric wheel; 704, bottom cover; 705, drive assembly; 706, first diaphragm chamber; 7061, water inlet cavity; 707, second diaphragm chamber; 7071, intermediate cavity. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-5 As shown, the utility model provides a pressurized anti-siphon diaphragm pump, including a leather cup 700, a valve plate 500, a middle plate 300, an upper cover 100, a cylinder body 600, a bottom cover 704 and a drive assembly 705. The upper cover 100 is provided with a water inlet nozzle 101 and a water outlet nozzle 103. The water inlet nozzle 101 is provided with a water inlet channel 1011, and the water outlet nozzle 103 is provided with a water outlet channel 1031.

[0026] The leather cup 700 is covered on one end of the valve plate 500 to form multiple diaphragm chambers, which are respectively the first diaphragm chamber 706 and the second diaphragm chamber 707. The middle plate 300 is covered on the other end of the valve plate 500 to form a water inlet chamber 7061, an intermediate chamber 7071 and a drainage chamber 308. The water inlet chamber 7061 is provided with a first water inlet 301, the intermediate chamber 7071 is provided with a second water inlet 303 and a third water inlet hole 307, and the drainage chamber 308 is provided with a water outlet 302. The first water inlet 301, the second water inlet 303, the third water inlet hole 307 and the water outlet 302 are all arranged on the middle plate 300. The first water inlet 301 is arranged at one end of the middle plate 300, the second water inlet 303 and the third water inlet hole 307 are arranged in the middle of the middle plate 300, and the water outlet 302 is arranged at the other end of the middle plate 300. A sealing gasket 400 is also arranged between the bottom surface of the middle plate 300 and the valve plate 500. The middle plate 300 is provided with a raised portion 304. The raised portion 304 is provided with a plurality of protrusions. 04 is hollow inside, and an inner groove 305 is provided on the outer side of the raised portion 304. The middle plate 300 is covered with a sealing shell 200. A protrusion 204 is provided on the outer side of the sealing shell 200 to engage with the inner groove 305. The raised portion 304 is provided with a liquid outlet channel 306. One end of the liquid outlet channel 306 is communicated with the second water inlet 303, and the other end of the liquid outlet channel 306 is communicated with the water outlet 302. The sealing shell 200 is equipped with a cover covering the second water inlet 303. 3 of the water stop valve 201, the upper cover 100 is provided with a protrusion 102, the protrusion 102 is hollow, the protrusion 102 is equipped with a spring 202, the upper end of the spring 202 is arranged on the bottom surface of the protrusion 304, and the lower end of the spring 202 is arranged on the surface of the water stop valve 201. The design of the spring 202 makes the water stop valve 201 have an automatic reset function, ensuring the continuity and stability of the medium during the pumping process, and also helps to prevent the medium from flowing back when the pump is stopped;

[0027] One end of the sealed housing 200 is provided with a water inlet through-hole 203 communicating with the water inlet channel 1011, and the other end of the sealed housing 200 is provided with a water outlet through-hole 205 communicating with the water outlet channel 1031. The water inlet chamber 7061 is movably provided with a first umbrella 501 and a second umbrella 502, and the intermediate chamber 7071 is movably provided with a third umbrella 503. The first umbrella 501, the second umbrella 502, and the third umbrella 503 function as one-way valves. The timely opening and closing of the first umbrella 501, the second umbrella 502, and the third umbrella 503 ensure unidirectional flow of the medium within the pump, prevent backflow and leakage, and improve pump efficiency.

[0028] One end of the valve plate 500 is provided with a first water inlet 504 communicating with the first water inlet 301, and the first water inlet 504 is communicated with the first diaphragm chamber 706. The middle part of the valve plate 500 is provided with a first water outlet 505 and a second water inlet 506, the first water outlet 505 is communicated with the first diaphragm chamber 706, and the second water inlet 506 is communicated with the second diaphragm chamber 707. The other end of the valve plate 500 is provided with a second water outlet communicating with the third water inlet 307. 507, the second water outlet hole 507 is connected to the second diaphragm chamber 707. The first umbrella 501 is movablely covered on the first water inlet hole 504, the second umbrella 502 is movablely covered on the first water outlet hole 505, and the third umbrella 503 is movablely covered on the second water outlet hole 507. The opening position of the sealing gasket 400 corresponds to the first water inlet hole 504, the first water outlet hole 505, the second water inlet hole 506, and the second water outlet hole 507 provided on the valve plate 500.

[0029] The bottom cover 704 is provided with an empty groove for the movement of the leather bowl 700, and the cylinder body 600 is provided with an empty hole corresponding to the first diaphragm chamber 706 and the second diaphragm chamber 707. The cylinder body 600 is mounted on the bottom cover 704, the valve plate 500 is mounted on the cylinder body 600, and the sealing gasket 400 is mounted on the valve plate 500. The middle plate 300 is mounted on the valve plate 500. The sealing gasket 400 can improve the sealing of the structure. The driving assembly 705 includes a driving member, an eccentric wheel 703, a connecting rod 702 and a swing frame 701. The swing frame 701 is provided with Below the leather cup 700 and connected thereto, the driving member is a conventional motor, the output shaft of the driving member is connected to the eccentric wheel 703, one end of the connecting rod 702 is connected to the eccentric wheel 703, and the other end of the connecting rod 702 is connected to the swing frame 701. The driving member drives the swing frame 701 to rotate and swing through the eccentric wheel 703, causing the swing frame 701 to squeeze the leather cup 700 for pumping. The swing frame 701 drives the leather cup 700 to circulate back and forth, causing the first diaphragm chamber 706 and the second diaphragm chamber 707 to alternately absorb and discharge liquid;

[0030] The medium enters from the water inlet channel 1011, passes through the water inlet hole 203 and the first water inlet 301 in sequence, and then flows into the water inlet chamber 7061. The driving member starts to work, driving the swing frame 701 to reciprocate and squeeze the leather cup 700. When the leather cup 700 agitates to one side, the volume of the first diaphragm chamber 706 increases, causing the pressure in the first diaphragm chamber 706 to decrease. Due to the pressure difference, the first umbrella 501 opens, allowing the medium in the water inlet chamber 7061 to be sucked into the first diaphragm chamber 706 through the first water inlet hole 504. When the leather cup 700 agitates in the opposite direction, the volume of the first diaphragm chamber 706 decreases and the pressure increases. At the same time, the volume of the second diaphragm chamber 707 increases and the pressure decreases, causing the first umbrella 501 to close and the second umbrella 507 to close. 2 opens, the medium in the first diaphragm chamber 706 is compressed and pumped out through the first water outlet 505, and simultaneously sucked into the second diaphragm chamber 707 from the second water inlet 506. When the leather cup 700 is agitated in the original direction again, the volume of the second diaphragm chamber 707 decreases, the pressure increases, and the third umbrella 503 opens, allowing the medium in the second diaphragm chamber 707 to be pumped out through the second water outlet 507. At the same time, the medium enters the drainage cavity 308 from the third water inlet 307, preparing for the next cycle. During the process of the medium being pumped out, the water stop valve 201 moves upward under the push of the medium, opening the second water inlet 303, which allows the medium to pass from the second water inlet 303 through the liquid outlet channel 306 and the water outlet 302, and finally be pumped out from the water outlet channel 1031.

[0031] Compared with traditional technologies:

[0032] The reciprocating agitation of the leather cup 700 changes the volume of the first diaphragm chamber 706 and the second diaphragm chamber 707. The medium in the first diaphragm chamber 706 is compressed and pumped out through the first water outlet 505. At the same time, it is sucked into the second diaphragm chamber 707 from the second water inlet 506. When the leather cup 700 is agitated in the original direction again, the volume of the second diaphragm chamber 707 becomes smaller and the pressure increases. The third umbrella 503 opens, allowing the medium in the second diaphragm chamber 707 to be pumped out through the second water outlet 507. At the same time, the medium enters the drainage cavity 308 from the third water inlet 307, preparing for the next cycle. When the second diaphragm chamber 707 is agitated again, it has a pressurized effect on the medium. This method helps to increase the pump head.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A booster anti-siphon diaphragm pump, comprising a leather cup, a valve plate, a middle plate, an upper cover and a drive assembly, wherein the upper cover is provided with a water inlet nozzle and a water outlet nozzle, the water inlet nozzle is provided with a water inlet channel, and the water outlet nozzle is provided with a water outlet channel, characterized in that: The leather cup cover is arranged at one end of the valve plate to form multiple diaphragm chambers, and the middle plate cover is arranged at the other end of the valve plate to form a water inlet chamber, an intermediate chamber and a drainage chamber. The water inlet chamber is provided with a first water inlet, the intermediate chamber is provided with a second water inlet and a third water inlet hole, and the drainage chamber is provided with a water outlet. The middle plate cover is provided with a sealing shell, and the sealing shell is equipped with a water stop valve covering the second water inlet. The water inlet channel is connected with the first water inlet, the water inlet chamber, the intermediate chamber, the third water inlet hole, the drainage chamber, the second water inlet, the water outlet and the water outlet channel in sequence. The water inlet chamber is movably inserted with a first umbrella pin and a second umbrella pin, and the middle chamber is movably inserted with a third umbrella pin.

2. A booster anti-siphon diaphragm pump according to claim 1, characterized in that: The driving assembly includes a driving member, an eccentric wheel, a connecting rod and a swing frame. The swing frame is arranged below the leather cup and connected to it. The output shaft of the driving member is connected to the eccentric wheel, one end of the connecting rod is connected to the eccentric wheel, and the other end of the connecting rod is connected to the swing frame. The driving member drives the swing frame to rotate and swing through the eccentric wheel, and causes the swing frame to squeeze the leather cup for pumping.

3. A booster anti-siphon diaphragm pump according to claim 1, characterized in that: The multiple diaphragm chambers are respectively the first diaphragm chamber and the second diaphragm chamber. One end of the valve plate is provided with a first water inlet hole communicating with the first water inlet, and the first water inlet hole is communicated with the first diaphragm chamber. The middle part of the valve plate is provided with a first water outlet hole and a second water inlet hole, the first water outlet hole is communicated with the first diaphragm chamber, and the second water inlet hole is communicated with the second diaphragm chamber. The other end of the valve plate is provided with a second water outlet hole communicating with the third water inlet hole, and the second water outlet hole is communicated with the second diaphragm chamber.

4. A booster anti-siphon diaphragm pump according to claim 3, characterized in that: The first water inlet, the second water inlet, the third water inlet hole and the water outlet are all arranged on the middle plate, the first water inlet is arranged at one end of the middle plate, the second water inlet and the third water inlet hole are arranged in the middle of the middle plate, and the water outlet is arranged at the other end of the middle plate.

5. The booster anti-siphon diaphragm pump according to claim 3, characterized in that: The first umbrella-shaped movable cover is arranged on the first water inlet hole, the second umbrella-shaped movable cover is arranged on the first water outlet hole, and the third umbrella-shaped movable cover is arranged on the second water outlet hole.

6. The booster anti-siphon diaphragm pump according to claim 4, characterized in that: The middle plate is provided with a convex portion, the interior of the convex portion is hollow, and the outer side of the convex portion is provided with an inner groove, and the outer side of the sealing shell is provided with a convex block that is snap-fitted with the inner groove.

7. The booster anti-siphon diaphragm pump according to claim 6, characterized in that: The convex portion is provided with a liquid outlet channel, one end of the liquid outlet channel is communicated with the second water inlet, and the other end of the liquid outlet channel is communicated with the water outlet.

8. The booster anti-siphon diaphragm pump according to claim 6, characterized in that: One end of the sealing shell is provided with a water inlet through hole communicated with the water inlet channel, and the other end of the sealing shell is provided with a water outlet through hole communicated with the water outlet channel.

9. The booster anti-siphon diaphragm pump according to claim 3, characterized in that: The upper cover is provided with a protrusion, the interior of the protrusion is hollow, a spring is arranged inside the protrusion, the upper end of the spring is arranged on the bottom surface of the protrusion, and the lower end of the spring is arranged on the surface of the water stop valve.

10. The booster anti-siphon diaphragm pump according to claim 6, characterized in that: A sealing gasket is further provided between the bottom surface of the middle plate and the valve plate, and the opening position of the sealing gasket corresponds to the positions of the first water inlet hole, the first water outlet hole, the second water inlet hole, and the second water outlet hole provided on the valve plate.

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