Pressurizing anti-siphon diaphragm pump

Abstract

The pressurizing anti-siphon diaphragm pump comprises a leather cup, a valve plate, a middle plate, an upper cover and a driving assembly, the leather cup covers one end of the valve plate to form a plurality of diaphragm chambers, the middle plate covers the other end of the valve plate to form a water inlet cavity, a middle cavity and a water drainage cavity, the water inlet cavity is provided with a first water inlet, and the middle cavity is provided with a second water inlet and a third water inlet; 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 invention 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 transmission, and the diaphragm piston movement compresses the volume in the diaphragm cavity to realize the liquid extraction function.

[0003] In a diaphragm pump, the diaphragm (or piston) separates the working chamber of the pump from the driving chamber. When the driving chamber is under pressure, the diaphragm will move to one side of the working chamber, thereby compressing the liquid in the working chamber and causing it to flow out. When the pressure in the driving chamber decreases, the diaphragm will move in the opposite direction and absorb 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), and the diaphragm pumps on the market now all have a primitive single piston to form the maximum head, and the use effect is poor. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art solutions, the present invention 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 present invention to solve its technical problems is: a pressurized anti-siphon diaphragm pump, including a leather cup, a valve plate, a middle plate, an upper cover and a driving 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 cup 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, 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 the outer side of the raised 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.

[0011] Furthermore, the protruding 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.

[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 present invention has the following beneficial effects:

[0016] Through the reciprocating agitation of the leather cup, 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 simultaneously sucked into the second diaphragm chamber from the second water inlet. When the leather cup is agitated in the original direction again, the volume of the second diaphragm chamber becomes smaller, the pressure increases, and the third diaphragm 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 is agitated 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 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a cross-sectional view of the present invention;

[0019] Figure 3 It is an exploded view of the structure of the present invention;

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

[0021] Figure 5 It is a schematic diagram of the structure of the plate in the present invention.

[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 through hole; 204, convex block; 205, water outlet through 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, discharge Water cavity; 400, sealing gasket; 500, valve plate; 501, first tack; 502, second tack; 503, third tack; 504, first water inlet hole; 505, first water outlet hole; 506, second water inlet hole; 507, second water outlet hole; 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, middle 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0025] like Figure 1-5 As shown, the present invention provides a booster 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 driving 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 a plurality of diaphragm chambers, which are respectively a first diaphragm chamber 706 and a 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 protrusion 304, and the protrusion 304 is provided with a protrusion 304. The interior of the middle plate 300 is hollow, and an inner groove 305 is arranged on the outer side of the raised portion 304. The middle plate 300 is covered with a sealing shell 200. A convex block 204 is arranged 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 on the second water inlet 303. 3, 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 enables the water stop valve 201 to 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 sealing shell 200 is provided with a water inlet through hole 203 communicating with the water inlet channel 1011, and the other end of the sealing shell 200 is provided with a water outlet through hole 205 communicating with the water outlet channel 1031. The water inlet chamber 7061 is movably inserted with a first umbrella 501 and a second umbrella 502, and the middle chamber 7071 is movably inserted with a third umbrella 503. The first umbrella 501, the second umbrella 502 and the third umbrella 503 play the role of a one-way valve. The timely opening and closing of the first umbrella 501, the second umbrella 502 and the third umbrella 503 ensures the one-way flow of the medium in the pump, avoids backflow and leakage, and improves the efficiency of the pump.

[0028] A first water inlet hole 504 communicating with the first water inlet 301 is provided at one end of the valve plate 500, and the first water inlet hole 504 communicates with the first diaphragm chamber 706. A first water outlet hole 505 and a second water inlet hole 506 are provided in the middle of the valve plate 500, and the first water outlet hole 505 communicates with the first diaphragm chamber 706, and the second water inlet hole 506 communicates with the second diaphragm chamber 707. The other end of the valve plate 500 is provided with a second water outlet hole communicating with the third water inlet hole 307. 507, the second water outlet hole 507 is communicated with the second diaphragm chamber 707, the first umbrella 501 is movably covered on the first water inlet hole 504, the second umbrella 502 is movably covered on the first water outlet hole 505, the third umbrella 503 is movably covered on the second water outlet hole 507, and 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 cup 700, and the cylinder body 600 is provided with empty holes 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 after 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 The driving member is a conventional motor under the leather cup 700, and 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, and makes the swing frame 701 squeeze the leather cup 700 for pumping, and the swing frame 701 drives the leather cup 700 to reciprocate, so that the first diaphragm chamber 706 and the second diaphragm chamber 707 alternately absorb and discharge liquid.

[0030] The medium enters from the water inlet channel 1011, passes through the water inlet through 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 is agitated to one side, the volume of the first diaphragm chamber 706 increases, resulting in a decrease in the pressure in the first diaphragm chamber 706. 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 is agitated 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, resulting in the closing of the first umbrella 501 and the closing of the second umbrella 507. 2 opens, the medium in the first diaphragm chamber 706 is compressed, pumped out through the first water outlet hole 505, and at the same time is sucked into the second diaphragm chamber 707 from the second water inlet hole 506. When the leather cup 700 is agitated in the original direction again, the volume of the second diaphragm chamber 707 becomes smaller, 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 hole 507. At the same time, the medium enters the drainage cavity 308 from the third water inlet hole 307 to prepare for the next cycle. In the process of the medium being pumped out, the water stop valve 201 moves upward under the push of the medium to open the second water inlet 303, which allows the medium to pass through the liquid outlet channel 306 and the water outlet 302 from the second water inlet 303 and finally be pumped out from the water outlet channel 1031.

[0031] Compared with traditional technology:

[0032] By the reciprocating agitation of the leather cup 700, the volumes of the first diaphragm chamber 706 and the second diaphragm chamber 707 are changed, the medium in the first diaphragm chamber 706 is compressed, pumped out through the first water outlet hole 505, and simultaneously sucked into the second diaphragm chamber 707 from the second water inlet hole 506. When the leather cup 700 is agitated in the original direction again, the volume of the second diaphragm chamber 707 becomes smaller, 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 hole 507. At the same time, the medium enters the drainage cavity 308 from the third water inlet hole 307 to prepare 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered 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 driving 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 a plurality of 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 provided with a first umbrella pin and a second umbrella pin, and the middle chamber is movably provided 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 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.

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. A first water inlet hole communicating with the first water inlet is provided at one end of the valve plate, and the first water inlet hole is communicated with the first diaphragm chamber. A first water outlet hole and a second water inlet hole are provided in the middle of the valve plate, and 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. A second water outlet hole communicating with the third water inlet hole is provided at the other end of the valve plate, 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. A booster anti-siphon diaphragm pump according to claim 4, characterized in that: The middle plate is provided with a raised part, the inside of the raised part is hollow, and the outer side of the raised part is provided with an inner groove, and the outer side of the sealing shell is provided with a convex block which is snap-fitted with the inner groove.

7. A 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 also arranged 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 arranged on the valve plate.

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