CN216554316U

CN216554316U - Anti-drip miniature diaphragm pump

Info

Publication number: CN216554316U
Application number: CN202123220267.6U
Authority: CN
Inventors: 占衡奇; 田海英
Original assignee: Dongguan Precision Pump Co ltd
Current assignee: Dongguan Precision Pump Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-05-17
Anticipated expiration: 2031-12-18

Abstract

The utility model belongs to the technical field of diaphragm pumps, and particularly discloses a drip-proof miniature diaphragm pump which comprises a leather cup, a valve plate, a middle plate and an upper cover, wherein the leather cup is covered at one end of the valve plate to form a plurality of diaphragm chambers, the middle plate is covered at the other end of the valve plate to form a drainage cavity and a water inlet cavity, the valve plate is movably accommodated in the drainage cavity, a diced umbrella is movably inserted in the water inlet cavity, the upper cover is covered on the middle plate, the water inlet cavity is communicated with a water inlet pipe of the upper cover, the drainage cavity is communicated with a water outlet pipe of the upper cover through a water outlet channel on the middle plate, a sealing gasket is arranged between the middle plate and the upper cover, the sealing gasket is elastically covered at the bottom of the upper cover to form a water storage cavity, a water inlet groove is arranged in the upper cover, and the water inlet pipe is communicated with the water storage cavity through the water inlet groove. The anti-dripping miniature diaphragm pump can prevent the pump body from dripping and leaking, and can ensure the stable and quiet running of the pump body.

Description

Anti-drip miniature diaphragm pump

Technical Field

The utility model belongs to the technical field of diaphragm pumps, and particularly relates to a drip-proof miniature diaphragm pump.

Background

Diaphragm pumps primarily utilize back and forth movement of a diaphragm (i.e., a cup) to change the volume of a diaphragm chamber to draw in and expel fluid. Because current diaphragm pump is less, its waterway is also less, and when water pressure was too big, the water in the pump can be from the clearance drippage between each part to the pump outside under high pressure, influences the normal use of the pump body.

Accordingly, the inventors have endeavored to design a diaphragm pump to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the anti-dripping miniature diaphragm pump can effectively prevent dripping of the pump body and can enable the pump body to run stably and quietly.

In order to achieve the purpose, the utility model adopts a technical scheme that:

the utility model provides a miniature diaphragm pump of antidrip, includes leather cup, valve plate, medium plate and upper cover, the leather cup lid is located the one end of valve plate forms a plurality of diaphragm chambers, the medium plate lid is located the other end of valve plate forms drainage chamber and intake antrum, the valve block has been acceptd in the activity of drainage intracavity, the activity of intake intracavity is inserted and is equipped with the umbrella butyl, the upper cover lid is located on the medium plate, the intake antrum with the inlet tube intercommunication of upper cover, the drainage chamber passes through go out water passageway on the medium plate with the outlet pipe intercommunication of upper cover, the medium plate with be equipped with sealed the pad between the upper cover, sealed pad elastic cover is located the bottom of upper cover forms the water storage chamber, be equipped with into the basin in the upper cover, the inlet tube passes through go into the basin with water storage chamber intercommunication.

As an improvement of the anti-drip miniature diaphragm pump, the bottom of the upper cover is arranged in a concave manner, the sealing gasket is elastically connected with the upper cover through a spring, and the spring is positioned in the water storage cavity.

As an improvement of the anti-drip miniature diaphragm pump, the water inlet groove is arranged at the bottom of the upper cover, the water inlet groove and the sealing gasket are arranged in an enclosing manner to form a water inlet cavity, and two ends of the water inlet cavity are respectively communicated with the water storage cavity and the water inlet pipe.

As an improvement of the anti-leakage miniature diaphragm pump, the water outlet channel is arranged along the radial direction of the middle plate, the middle plate is provided with a plurality of middle plate water outlets, the plurality of middle plate water outlets are arranged at intervals in a circle around the water inlet end of the water outlet channel, and the water discharge cavity is communicated with the water outlet channel through the plurality of middle plate water outlets.

As an improvement of the anti-leakage miniature diaphragm pump, a sealing ring is arranged between the valve plate and the middle plate, the sealing ring is positioned in the water inlet cavity, and the valve plate and the insertion ends of the umbrella ribs are exposed from the sealing ring.

As an improvement of the anti-drip miniature diaphragm pump, a plurality of water inlet grooves and a water discharge groove are arranged on the valve plate, the water inlet grooves are arranged around the water discharge groove at intervals, and a plurality of grooves are arranged between every two adjacent water inlet grooves at intervals.

As an improvement of the anti-drip miniature diaphragm pump, the bottom of the drainage groove is provided with a bulge and a plurality of pairs of drainage openings, the drainage openings are correspondingly communicated with the diaphragm chambers one by one, and the drainage openings are arranged around the bulge at intervals in a circle.

As an improvement of the anti-drip miniature diaphragm pump, the same pair of water outlets are symmetrically arranged at intervals, and the width of one end of each water outlet, which is far away from the corresponding diaphragm chamber, is gradually reduced.

As an improvement of the anti-drip miniature diaphragm pump, a plurality of water inlet grooves correspond to a plurality of diaphragm chambers one by one, an umbrella-shaped hole and a plurality of water inlets are arranged in each water inlet groove, the plurality of water inlets are arranged around the umbrella-shaped hole and are communicated with the corresponding diaphragm chambers, and the umbrella-shaped is inserted in the umbrella-shaped hole.

As an improvement of the anti-drip miniature diaphragm pump, the water inlet cavity is arranged around the water discharge cavity, and the leather cup is driven by the driving source to eccentrically swing.

Compared with the prior art, the anti-drip miniature diaphragm pump prevents water leakage between the middle plate and the upper cover by arranging the sealing gasket between the middle plate and the upper cover, meanwhile, the sealing gasket is elastically covered at the bottom of the upper cover to form the water storage cavity, and the water inlet groove is arranged in the upper cover, so that water in the water inlet pipe can enter the water storage cavity along the water inlet groove, and the stable and quiet operation of a pump body is ensured.

Description of the drawings:

FIG. 1 is an exploded perspective view of a drip resistant miniature diaphragm pump according to the present invention;

FIG. 2 is an enlarged perspective view of the upper cover of the present invention;

FIG. 3 is an enlarged perspective view of the middle plate of the present invention;

FIG. 4 is an enlarged perspective view of another perspective of the midplane of the utility model;

FIG. 5 is an enlarged perspective assembled view of the valve and seal ring of the present invention;

FIG. 6 is an enlarged perspective view of the valve of the present invention;

FIG. 7 is an enlarged cross-sectional view of a drip resistant miniature diaphragm pump of the present invention.

Illustration of the drawings:

1. the water storage device comprises a motor, 11, a bottom cover, 12, an eccentric wheel, 2, a cylinder body, 3, a leather cup, 31, a swing frame, 32, a diced umbrella, 33, a valve plate, 4, a valve plate, 41, a groove, 42, a water inlet groove, 421, a water inlet, 422, a diced umbrella hole, 43, a water discharge groove, 431, a water discharge opening, 5, a sealing ring, 6, a middle plate, 61, a middle plate inlet, 62, a water outlet channel, 63, a middle plate water outlet, 64, an inlet groove, 7, a sealing gasket, 8, an upper cover, 81, a water inlet pipe, 82, a water outlet pipe, 83, a water inlet groove, 84 and a water storage cavity.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are for reference and illustration only and are not to be construed as limiting the scope of the utility model.

Referring to fig. 1 to 7, a micro anti-drip diaphragm pump comprises a leather cup 3, a valve plate 4, a middle plate 6, an upper cover 8 and a driving device, wherein the upper cover 8, the middle plate 6, the valve plate 4 and the leather cup 3 are sequentially arranged on the driving device from outside to inside, the leather cup 3 is arranged at one end of the valve plate 4 to form a plurality of diaphragm chambers, the middle plate 6 is arranged at the other end of the valve plate 4 to form a drainage cavity and a water inlet cavity, a valve plate 33 is movably accommodated in the drainage cavity, and a plurality of umbrella blocks 32 are movably inserted in the water inlet cavity, preferably, three umbrella blocks 32 are selected, the upper cover 8 is arranged on the middle plate 6, the water inlet cavity is communicated with a water inlet pipe 81 of the upper cover 8, the drainage cavity is communicated with a water outlet pipe 82 of the upper cover 8 through a water outlet channel 62 on the middle plate 6, the driving device drives the leather cup 3 to swing back and forth to control the volume change of the diaphragm chambers, further control the unidirectional opening and closing of the umbrella blocks 32 and the valve plate 33, so that the fluid sucked by the water inlet pipe 81 passes through the diaphragm chambers, smoothly enters the drainage cavity and is finally discharged out of the diaphragm pump from the water outlet pipe 82.

Referring to fig. 1 and 7, the driving device includes a motor 1, an eccentric wheel 12 and a swing frame 31, a bottom cover 11 is fixed on the motor 1, a cylinder body 2 is fixed on one end of the bottom cover 11 far away from the motor 1, an output shaft of the motor 1 is fixed with the swing frame 31 through the eccentric wheel 12, the eccentric wheel 12 and the swing frame 31 are accommodated in the bottom cover 11, three connecting ends of the bottom of the leather cup 3 are conical, the three connecting ends of the leather cup 3 respectively penetrate through the cylinder body 2 and are connected with three fixed ends of the swing frame 31, and the top of the leather cup 3 is covered on the bottom surface of the valve plate 4 to form three independent diaphragm chambers.

Referring to fig. 1 and 6, a plurality of water inlet grooves 42 and a plurality of water outlet grooves 43 are formed in the end surface of the valve plate 4 away from the cup 3, the number of the water inlet grooves 42 in this embodiment is preferably three, the water outlet grooves 43 are located in the center of the valve plate 4, a triangular protruding portion and a plurality of pairs of water outlet ports 431 are formed in the bottom of the water outlet grooves 43, the number of the water outlet ports 431 in this embodiment is preferably three, the three pairs of water outlet ports 431 are in one-to-one correspondence with three diaphragm chambers, the three pairs of water outlet ports 431 are arranged around the protruding portion of the bottom of the water outlet grooves 43 at intervals, the width of one end of each water outlet port 431 away from the corresponding diaphragm chamber is gradually reduced, the valve sheet 33 is accommodated in the water outlet groove 43 and movably sleeved on the protruding portion of the water outlet groove 43, the valve sheet 33 can movably cover the three pairs of water outlet ports 431, the three water inlet grooves 42 are arranged around the water outlet grooves 43 at intervals, a plurality of grooves 41 are formed between two adjacent water inlet grooves 42, all be equipped with an umbrella hole 422 and a plurality of water inlet 421 in every inlet channel 42, a plurality of water inlets 421 surround the interval setting of umbrella hole 422 and with the diaphragm chamber intercommunication that corresponds, three umbrella butyl 32 insert respectively and locate three umbrella hole 422 in the end, every umbrella butyl 32 umbelliform diaphragm is located the diaphragm chamber that corresponds and the activity is covered on corresponding water inlet 421, three inlet channel 42 communicates through a plurality of water inlets 421 and three diaphragm chamber one-to-one respectively.

Referring to fig. 1 and 5, in order to prevent water leakage between the valve plate 4 and the middle plate 6, a sealing ring 5 is arranged between the valve plate 4 and the middle plate 6, the sealing ring 5 is located in the water inlet cavity, and the drainage groove 43 and the three water inlet grooves 42 are exposed out of the sealing ring 5, so that the valve plate 33 and the insertion ends of all the umbrella ribs 32 are exposed out of the sealing ring 5.

Referring to fig. 1, 3 and 4, an inlet groove 64 and a plurality of middle plate water outlets 63 are formed in the bottom of the middle plate 6, the inlet groove 64 is formed in a circle around the plurality of middle plate water outlets 63, the inlet groove 64 is separated from the plurality of middle plate water outlets 63, the inlet groove 64 is communicated with the three water inlets 42 to form the water inlet cavity, the water discharge groove 43 is communicated with the plurality of middle plate water outlets 63 to form the water discharge cavity, the water inlet cavity is formed around the water discharge cavity, the water discharge cavity is communicated with the water outlet channel 62 through the plurality of middle plate water outlets 63, a middle plate inlet 61 is formed in the bottom of the inlet groove 64, the middle plate inlet 61 penetrates through the whole middle plate 6, the top of the middle plate 6 is convexly arranged, the water outlet channel 62 is arranged in the convex end of the top of the middle plate 6, specifically, the water outlet channel 62 is arranged in the radial direction of the middle plate 6, the plurality of middle plate water outlets 63 are arranged around the water inlet end of the water outlet channel 62 in a circle at intervals, the outlet of the outlet channel 62 is located on a convex portion of the middle plate 6 and spaced from the middle plate inlet 61.

Referring to fig. 1, a sealing gasket 7 is sleeved on a convex portion of the middle plate 1, the sealing gasket 7 is located between the middle plate 1 and the upper cover 8, the sealing gasket 7 is elastically covered at the bottom of the upper cover 8 to form a water storage cavity 84, an outlet of the water outlet channel 62 and the middle plate inlet 61 are exposed from the sealing gasket 7, the sealing gasket 7 is elastically connected with the upper cover 8 by a spring, and the spring is located in the water storage cavity 84.

Referring to fig. 1 and 2, the bottom of the upper cover 8 is recessed, a water inlet groove 83 is arranged at the bottom of the upper cover 8, the water inlet groove 83 and the sealing gasket 7 are surrounded to form a water inlet cavity, two ends of the water inlet cavity are respectively communicated with the water storage cavity 84 and the water inlet pipe 81, and the water inlet pipe 81 and the water outlet pipe 82 are arranged at the top of the upper cover 8 at intervals and eccentrically.

Referring to fig. 1 to 7, the anti-drip micro diaphragm pump of the present invention has the following working principle: external water enters the diaphragm pump from the water inlet pipe 81, part of the water enters the water storage cavity 84 through the water inlet groove 83, the elastic covering part of the sealing gasket 7 is bounced open, the water pressure in the isolation pump is reduced, the other part of the water enters the water inlet cavity through the middle plate inlet 61, the umbrella-shaped blocks 32 are pushed open through the water inlets 421 of the three water inlet grooves 42 and enter the three diaphragm chambers, the motor 1 controls the swing frame 31 to swing eccentrically, the volume of the diaphragm chambers is increased, the three umbrella-shaped blocks 32 are closed, the valve plates 33 are opened, the water in the three diaphragm chambers respectively enters the water drainage cavities through the water outlets 431, enters the water outlet channel 62 through the water outlets 63 of the middle plates, and is finally discharged from the water outlet pipe 82.

According to the anti-dripping micro diaphragm pump, the sealing gasket 7 is arranged between the middle plate 6 and the upper cover 8, so that water dripping and water leakage between the middle plate 6 and the upper cover 8 are prevented, meanwhile, the sealing gasket 7 is elastically covered at the bottom of the upper cover 8 to form the water storage cavity 84, the water inlet groove 83 is formed in the upper cover 8, so that water in the water inlet pipe 81 can enter the water storage cavity 84 along the water inlet groove 83, the water pressure is reduced, the phenomenon that the vibration and the noise of the diaphragm pump are large due to overlarge elastic force of the sealing gasket 7 is avoided, and the stable and quiet operation of a pump body is guaranteed.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. The utility model provides a miniature diaphragm pump of antidrip, includes leather cup, valve plate, medium plate and upper cover, the leather cup lid is located the one end of valve plate forms a plurality of diaphragm chambers, the medium plate lid is located the other end of valve plate forms drainage chamber and intake antrum, the valve block has been acceptd in the drainage intracavity activity, the activity of intake intracavity is inserted and is equipped with the umbrella butyl, the upper cover lid is located on the medium plate, the intake antrum with the inlet tube intercommunication of upper cover, the drainage chamber passes through go out water passageway on the medium plate with the outlet pipe intercommunication of upper cover, its characterized in that, the medium plate with be equipped with sealed the pad between the upper cover, sealed pad elastic cover is located the bottom of upper cover forms the water storage chamber, be equipped with into the basin in the upper cover, the inlet tube pass through go into the basin with water storage chamber intercommunication.

2. The anti-drip miniature diaphragm pump according to claim 1, wherein the bottom of said upper cover is recessed, said sealing pad is elastically connected to said upper cover by a spring, and said spring is located in said water storage chamber.

3. The micro anti-drip diaphragm pump according to claim 1, wherein the water inlet tank is disposed at the bottom of the upper cover, the water inlet tank and the sealing pad are enclosed to form a water inlet chamber, and two ends of the water inlet chamber are respectively communicated with the water storage chamber and the water inlet pipe.

4. The drip-proof miniature diaphragm pump according to claim 1, wherein said water outlet channel is disposed along a radial direction of said middle plate, said middle plate is provided with a plurality of middle plate water outlets, said plurality of middle plate water outlets are disposed around a water inlet end of said water outlet channel at intervals, and said water discharge chamber is communicated with said water outlet channel through said plurality of middle plate water outlets.

5. The anti-drip miniature diaphragm pump according to claim 1, wherein a sealing ring is disposed between the valve plate and the middle plate, the sealing ring is located in the water inlet cavity, and the insertion ends of the valve plate and the umbrella rib are exposed from the sealing ring.

6. The drip resistant miniature diaphragm pump of claim 1 wherein said valve plate is provided with a plurality of inlet channels and a drain channel, said plurality of inlet channels being spaced around said drain channel, and a plurality of grooves being spaced between two adjacent inlet channels.

7. The drip resistant micro diaphragm pump of claim 6 wherein the bottom of the drain channel is provided with a protrusion and a plurality of pairs of drain openings, the plurality of pairs of drain openings communicating with the plurality of diaphragm chambers in a one-to-one correspondence, the plurality of pairs of drain openings being spaced around the protrusion.

8. The drip resistant miniature diaphragm pump of claim 7 wherein the same pair of said drain openings are symmetrically spaced, said drain openings tapering in width away from an end corresponding to said diaphragm housing.

9. The drip resistant miniature diaphragm pump of claim 7 wherein a plurality of said inlet channels are in one-to-one correspondence with a plurality of said diaphragm chambers, said inlet channels having a crown hole and a plurality of inlet ports disposed therein, said plurality of inlet ports disposed about said crown hole and in communication with a corresponding said diaphragm chamber, said crown being inserted into said crown hole.

10. The drip resistant miniature diaphragm pump of claim 1 wherein said inlet chamber is disposed about said drain chamber and said cup is eccentrically rocked by a drive source.