CN216812100U

CN216812100U - Prevent seal assembly and diaphragm pump against current

Info

Publication number: CN216812100U
Application number: CN202220010859.0U
Authority: CN
Inventors: 罗成明; 王成刚
Original assignee: Anhui Baierte Intelligent Technology Co ltd
Current assignee: Anhui Baierte Intelligent Technology Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-06-24
Anticipated expiration: 2032-01-05

Abstract

The utility model relates to the technical field of diaphragm pumps and discloses an anti-reflux sealing assembly and a diaphragm pump, wherein the sealing assembly comprises a top cover with a water outlet hole, an upper cover with a water inlet hole, a base plate with a water inlet and a water outlet and a baffle base with a water inlet cavity and a water outlet cavity which are sequentially arranged from top to bottom, the water outlet is positioned in the center and corresponds to the water outlet cavity, a plurality of water inlets are uniformly distributed and correspond to the water inlet cavity one by one, the lower end of the upper cover is provided with a water outlet bin communicated with the water outlet and a water inlet bin communicated with the water inlet, the water inlet bin is arranged around the water outlet bin, the upper end of the top cover is provided with a sealing gasket for sealing and opening the water outlet bin, and the sealing gasket is covered on the upper port of the water outlet bin. According to the utility model, through the assembly positioning of the top cover and the upper cover, the upper cover has the functions of water inlet and sealing, and meanwhile, the sealing gasket can be conveniently assembled and positioned, the structure of the sealing assembly is greatly simplified, and the production cost of the diaphragm pump is reduced.

Description

Prevent seal assembly and diaphragm pump against current

Technical Field

The utility model relates to the technical field of diaphragm pumps, in particular to an anti-backflow sealing assembly and a diaphragm pump.

Background

Diaphragm pumps are widely used in the market for industrial products such as drinking water dispensers, coffee machines, water purifiers, etc. When the diaphragm pump is used, the motor is stopped and the diaphragm pump can drip water due to the liquid level difference pressure of the water inlet.

For the dripping phenomenon of the diaphragm pump, a sealing assembly applied to the diaphragm pump is also available on the market at present, and the structure of the sealing assembly is shown in fig. 9, and the sealing assembly comprises a leakage-proof cover a, a sealing bag c arranged on the leakage-proof cover a and an elastic piece b used for compressing the sealing bag c, when the diaphragm pump stops working, the sealing bag c is covered on a water outlet seat f through the pressure of the elastic piece b, so that water in a central water cavity e is prevented from entering the water outlet seat f, and water is prevented from leaking. Although the structure can solve the problem of water dripping of the water pump in a shutdown state, the sealing assembly formed by the structures of the leakage-proof cover a, the elastic piece b, the sealing bag c and the like has more parts, the installation process is complicated, the assembly precision is influenced, and the production cost of the diaphragm pump can be increased by the various parts.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a backflow-preventing sealing assembly and a diaphragm pump, and aims to solve the technical problems that the assembly process is influenced and the production cost is increased due to numerous parts of the existing sealing assembly.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a sealing assembly who prevents adverse current, includes from last to the upper cover that has the apopore, has the inlet opening, has the backing plate of water inlet and delivery port and have the separation blade base of intake antrum and play water cavity that sets gradually extremely down, the delivery port is located central authorities and corresponding with a water cavity, and is a plurality of water inlet equipartition sets up and with the intake antrum one-to-one, the lower extreme of upper cover is provided with the storehouse of intaking that is linked together with the delivery port and is linked together with the water inlet, the storehouse of intaking encircles the storehouse setting of intaking, the seal gasket that is used for realizing that the storehouse is sealed and opens is installed to the upper end of top cap, the last port of storehouse is located to the seal gasket lid.

As a further scheme of the utility model: the water inlet hole is communicated with the water inlet bin, and the water outlet hole is opposite to the sealing gasket.

As a further scheme of the utility model: the water outlet cavity is internally provided with a non-return separation blade for a one-way sealing water outlet cavity, and the bottom of the water inlet cavity is provided with an umbrella valve for the one-way sealing water inlet cavity in a penetrating way.

As a further scheme of the utility model: seal gasket is including the annular portion that is used for with upper cover joint adaptation, the intermediate part that is used for sealed delivery sump upper port and be used for connecting intermediate part and annular portion and the elasticity rib that the equipartition set up, one side of annular portion is connected with the shifting block that is used for the perk seal gasket.

As a further scheme of the utility model: and annular bulges used for forming height difference are arranged on the peripheral side edge of the upper port of the water outlet bin in an extending manner.

As a further scheme of the utility model: and the lower end of the top cover is provided with an extrusion bulge used for supporting and pressing the annular part at a position corresponding to the annular part.

The utility model provides a prevent diaphragm pump of seal assembly against current, includes the seal assembly who assembles the connection in proper order through set bolt, is used for realizing intaking and the piston cylinder subassembly of play water function and the motor element of drive piston cylinder subassembly motion.

As a further scheme of the utility model: the piston cylinder assembly comprises a piston cylinder main body in one-to-one correspondence with the water inlet cavity, a cylinder base used for installing the piston cylinder main body, a rotary table connected with pins of the piston cylinder main body and a rotary shaft driving the rotary table to rotate.

As a further scheme of the utility model: the motor assembly comprises a fixing seat and a motor arranged on the fixing seat, the output end of the motor is connected with an eccentric swing head, the rotating shaft is connected with the eccentric swing head, the motor drives the eccentric swing head to rotate, and the piston cylinder main body is driven to reciprocate in the vertical direction through the rotating shaft and the rotating disc to realize compression and stretching.

The utility model has the beneficial effects that:

(1) according to the utility model, the water inlet bin and the water outlet bin are designed in the upper cover through the assembly positioning of the top cover and the upper cover, and the sealing gasket is adaptive and clamped on the end surface of the upper cover to block the water outlet bin, so that the upper cover can realize a water inlet function and also has the function of a sealing seat, and meanwhile, the integrally designed sealing gasket is clamped with the upper cover through the annular part and realizes the opening and closing of the water bin through the lifting and elastic resetting of the middle part, thereby realizing convenient and quick assembly positioning, simultaneously replacing various parts such as an elastic part and a sealing bag in the prior art, greatly simplifying the structure of a sealing assembly, and reducing the production cost of the diaphragm pump;

(2) in the utility model, under the shutdown state of the motor, the height difference is formed by the middle part of the sealing gasket and the extrusion action of the annular bulge, the sealing effect on the water outlet bin is improved, and meanwhile, the elastic force of the elastic rib can overcome the water pressure impact force formed by liquid level difference, so that the middle part is always pressed on the water outlet bin, and the water dripping phenomenon of the water outlet hole is effectively prevented.

Drawings

The utility model will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic illustration of an explosive structure of the present invention;

FIG. 3 is a schematic view of the construction of the base plate and the flap base of the present invention;

FIG. 4 is a schematic top view of the flap base of the present invention;

FIG. 5 is a schematic view of the construction of the top cover and the upper cover of the present invention;

FIG. 6 is a schematic structural view of the upper lid of the present invention before being fitted with a gasket seal;

FIG. 7 is a schematic view of the structure of the upper lid of the present invention after assembling the gasket seal;

FIG. 8 is a schematic view of the water flow direction during operation of the present invention;

fig. 9 is a schematic view of a prior art seal assembly.

In the figure: 1. a top cover; 101. a water outlet hole; 102. extruding the bulge; 2. an upper cover; 201. a water inlet hole; 202. a water outlet bin; 203. a water inlet bin; 204. an annular projection; 3. a base plate; 301. a water inlet; 302. a water outlet; 4. a baffle plate base; 401. a water inlet cavity; 402. a water outlet cavity; 5. sealing gaskets; 501. an annular portion; 502. an intermediate portion; 503. elastic ribs; 504. shifting blocks; 6. a backstop catch; 7. an umbrella valve; 8. a piston cylinder body; 9. a cylinder base; 10. a turntable; 11. a rotating shaft; 12. a fixed seat; 13. a motor; 14. eccentric oscillating;

a. a leakage-proof cover; b. an elastic member; c. sealing the bag; d. a water inlet and outlet seat; e. a central water chamber; f. a water outlet seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention is a sealing assembly for preventing reverse flow, which comprises a top cover 1 having a water outlet 101, an upper cover 2 having a water inlet 201, a base plate 3 having a water inlet 301 and a water outlet 302, and a baffle base 4 having a water inlet chamber 401 and a water outlet chamber 402, which are sequentially disposed from top to bottom.

As shown in fig. 3, the water outlet 302 is located at the center and corresponds to the water outlet cavity 402, and the water inlets 301 are uniformly distributed and correspond to the water inlet cavities 401 one by one.

In this embodiment, the number of the water inlets 301 and the water inlet cavities 401 is three, and the water inlets and the water inlet cavities are respectively and uniformly distributed around the water outlet 302 and the water outlet cavity 402; the water inlet 301 and the water inlet cavity 401 have the same shape, the water outlet 302 and the water outlet cavity 402 have the same shape, when the base plate 3 and the baffle base 4 are assembled and positioned, each water inlet 301 is identical to the corresponding water inlet cavity 401, and the water outlet 302 is identical to the corresponding water outlet cavity 402.

As shown in fig. 3, a check baffle 6 for one-way sealing the water outlet cavity 402 is installed in the water outlet cavity 402, and an umbrella valve 7 for one-way sealing the water inlet cavity 401 is arranged at the bottom of the water inlet cavity 401 in a penetrating manner.

Specifically, as shown in fig. 4, through holes for circulating water are formed in the bottoms of the water inlet cavity 401 and the water outlet cavity 402, the through holes are communicated with the piston cylinder main body 8 at the bottom, the umbrella valve 7 is used for plugging the through holes in the water inlet cavity 401, and the check baffle 6 is used for plugging the through holes in the water outlet cavity 402.

As shown in fig. 5 and 7, the lower end of the upper cover 2 is provided with an outlet bin 202 communicated with the outlet 302 and an inlet bin 203 communicated with the inlet 301, the inlet bin 203 is arranged around the outlet bin 202, the upper end of the top cover 1 is provided with a sealing gasket 5 for sealing and opening the outlet bin 202, and the sealing gasket 5 covers the upper port of the outlet bin 202.

In this embodiment, the water inlet 201 is communicated with the water inlet bin 203, the water outlet 101 faces the sealing gasket 5, a water source introduced from the water inlet 201 enters the water inlet bin 203, meanwhile, the water inlet 301 on the gasket is communicated with the water inlet bin 203, the water source enters the corresponding water inlet cavity 401 through the water inlet 301, the umbrella valve 7 is opened through compression and stretching of the piston cylinder main body 8, the water source in the water inlet cavity 401 enters the corresponding piston cylinder main body 8, and therefore the water inlet process is achieved.

As shown in fig. 7, the sealing gasket 5 includes an annular portion 501 adapted to the upper cover 2 in a clamping manner, an intermediate portion 502 for sealing an upper port of the outlet sump 202, and elastic ribs 503 uniformly distributed and connecting the intermediate portion 502 and the annular portion 501, and a shifting block 504 for tilting the sealing gasket 5 is connected to one side of the annular portion 501.

In this implementation, the upper end of the upper cover 2 is provided with a groove matched with the annular portion 501, the middle portion 502, the elastic rib 503 and the shifting block 504, and the sealing gasket 5 is positioned and installed through the groove, and meanwhile, when the maintenance or the replacement is required, the sealing gasket 5 can be integrally tilted from the groove through the shifting block 504, so that the disassembly and the assembly are convenient.

Simultaneously, seal gasket 5 adopts rubber material an organic whole to make, has certain flexible elasticity to only when motor 13 starts, the water pressure that the intermediate part 502 of sealed effluent bin 202 received this moment can overcome elastic restoring force, will make intermediate part 502 lift up, and elastic rib 503 is tensile, and the water source will flow to apopore 101 through effluent bin 202 this moment, thereby realizes the water process.

As shown in fig. 6, an annular protrusion 204 for forming a height difference is extended from the peripheral side edge of the port on the outlet bin 202.

In this embodiment, in the water outlet process, the middle portion 502 of the sealing gasket 5 is lifted to leave a gap to realize water outlet, after the water outlet is finished, the middle portion 502 covers the water outlet bin 202 and extrudes the annular protrusion 204 under the action of elastic restoring force, so that a sealing height difference is formed at the edge of the port of the water outlet bin 202, the water source of the water outlet bin 202 is difficult to flow out from the gap of the port, and the sealing performance is improved.

As shown in fig. 5, a pressing protrusion 102 for supporting and pressing the annular portion 501 is provided at a lower end of the top cover 1 corresponding to the annular portion 501.

In this embodiment, after the top lid 1 and the upper lid 2 are assembled and connected by the positioning bolt, the pressing protrusion 102 at the lower end of the top lid 1 always applies pressure to the annular portion 501 of the sealing gasket 5, so that the annular portion 501 can be always pressed in the corresponding groove, and at the same time, a cavity is left at the lower end of the top lid 1 corresponding to the middle portion 502 and the elastic rib 503, so that the middle portion 502 obtains a sufficient deformation space with the elastic rib 503.

The utility model also provides a diaphragm pump of the anti-reflux sealing assembly, which comprises the sealing assembly, a piston cylinder assembly and a motor assembly, wherein the sealing assembly, the piston cylinder assembly and the motor assembly are sequentially assembled and connected through the positioning bolt, the piston cylinder assembly is used for realizing the water inlet and outlet functions, and the motor assembly drives the piston cylinder assembly to move.

As shown in fig. 2, the piston cylinder assembly includes a piston cylinder body 8 corresponding to the water inlet cavity 401, a cylinder seat 9 for installing the piston cylinder body 8, a rotary table 10 connected to a pin of the piston cylinder body 8, and a rotary shaft 11 for driving the rotary table 10 to rotate.

In this embodiment, the number of the piston cylinder main bodies 8 is three as the number of the water inlet cavities 401, and each piston cylinder main body 8 covers the corresponding through holes on the water inlet cavity 401 and the water outlet cavity 402, the water source in the water inlet cavity 401 enters the piston cylinder main body 8 through the corresponding through hole, and the water source in the piston cylinder main body 8 enters the water outlet cavity 402 through the corresponding through hole. A pin extends from the bottom of each piston cylinder body 8, and each pin is simultaneously connected with a connecting hole on the rotary disc 10.

As shown in fig. 2, the motor assembly includes a fixing seat 12 and a motor 13 mounted on the fixing seat 12, an output end of the motor 13 is connected with an eccentric swing head 14, a rotating shaft 11 is connected with the eccentric swing head 14, the motor 13 drives the eccentric swing head 14 to rotate, the piston cylinder main body 8 is driven by the rotating shaft 11 and the rotating disc 10 to reciprocate in the vertical direction to realize compression and stretching, and water inlet and outlet actions are repeatedly performed through continuous compression and stretching motions of the piston cavity.

The working principle of the utility model is as follows: as shown in fig. 8, when the motor 13 is started, the eccentric swinging head 14 is driven to rotate, and the piston cylinder main body 8 is driven to reciprocate in the vertical direction through the rotating shaft 11 and the rotating disc 10, so that each corresponding piston cavity realizes reciprocating compression and stretching. When the piston cavity is stretched, under the action of suction, the umbrella valve 7 is opened, the water inlet cavity 401 is communicated with the piston cavity, and a water source introduced from the water inlet hole 201 flows into the piston cavity through the water inlet bin 203, the water inlet 301 and the water inlet cavity 401 in sequence, so that a water inlet process is realized; when the piston cavity is compressed, under the action of thrust, the umbrella valve 7 seals the water inlet cavity 401, the water inlet cavity 401 stops feeding water to the piston cavity, meanwhile, the water source in the piston cavity pushes the non-return baffle 6 to open, so that the water source flows through the water outlet cavity 402 and enters the water outlet bin 202, the water pressure in the water outlet bin 202 pushes the middle part 502 of the sealing gasket 5 to lift up, the water source flows out of the water outlet bin 202 and is discharged through the water outlet hole 101, and the water outlet process is achieved.

When the motor 13 is shut down, the middle part 502 of the sealing gasket 5 can block the water outlet bin 202 and extrude the annular protrusion 204 to form a good sealing effect, if the water inlet hole 201 still has a water source, and forms a water pressure with the water source in the water outlet bin 202 due to the height difference of the liquid level, because the elastic restoring force of the sealing gasket 5 is greater than the water pressure, the water pressure cannot flush the middle part 502 of the sealing gasket 5 at the moment, and no water source flows out from the water outlet hole 101, thereby avoiding the condition of dripping due to the difference of the water level when the motor is shut down.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The anti-reflux sealing assembly is characterized by comprising a top cover (1) with a water outlet hole (101), an upper cover (2) with a water inlet hole (201), a base plate (3) with a water inlet (301) and a water outlet (302) and a baffle base (4) with a water inlet cavity (401) and a water outlet cavity (402), which are sequentially arranged from top to bottom, wherein the water outlet (302) is positioned in the center and corresponds to the water outlet cavity (402), a plurality of water inlets (301) are uniformly distributed and correspond to the water inlet cavities (401) one by one, the lower end of the upper cover (2) is provided with a water outlet bin (202) communicated with the water outlet (302) and a water inlet bin (203) communicated with the water inlet (301), the water inlet bin (203) is arranged around the water outlet bin (202), and the upper end of the top cover (1) is provided with a sealing gasket (5) for sealing and opening the water bin (202), the sealing gasket (5) is covered on the upper port of the water outlet bin (202).

2. An anti-reflux seal assembly as claimed in claim 1, wherein said inlet opening (201) communicates with an inlet chamber (203), said outlet opening (101) being opposite the sealing gasket (5).

3. The backflow-preventing sealing assembly according to claim 1, wherein a non-return baffle (6) for one-way sealing of the water outlet cavity (402) is installed in the water outlet cavity (402), and an umbrella valve (7) for one-way sealing of the water inlet cavity (401) is arranged at the bottom of the water inlet cavity (401) in a penetrating mode.

4. The backflow-preventing sealing assembly according to claim 1, wherein the sealing gasket (5) comprises an annular portion (501) adapted to be clamped with the upper cover (2), a middle portion (502) for sealing an upper port of the outlet sump (202), and elastic ribs (503) which are uniformly distributed and used for connecting the middle portion (502) with the annular portion (501), and a shifting block (504) for tilting the sealing gasket (5) is connected to one side of the annular portion (501).

5. The backflow prevention seal assembly according to claim 4, wherein the peripheral side edge of the port on the water outlet bin (202) is extended with an annular protrusion (204) for forming a height difference.

6. A backflow prevention seal assembly as claimed in claim 5, wherein the lower end of the top cap (1) is provided with a pressing protrusion (102) for supporting and pressing the annular portion (501) at a position corresponding to the annular portion (501).

7. A diaphragm pump based on the anti-backflow sealing assembly of any one of claims 1 to 6, comprising the sealing assembly, a piston cylinder assembly for realizing water inlet and outlet functions and a motor assembly for driving the piston cylinder assembly to move, which are sequentially assembled and connected through a positioning bolt.

8. The diaphragm pump of the anti-backflow seal assembly according to claim 7, wherein the piston cylinder assembly comprises piston cylinder bodies (8) corresponding to the water inlet cavities (401) one by one, a cylinder base (9) for mounting the piston cylinder bodies (8), a rotating disc (10) connected with pins of the piston cylinder bodies (8), and a rotating shaft (11) for driving the rotating disc (10) to rotate.

9. The diaphragm pump of the anti-backflow sealing assembly according to claim 8, wherein the motor assembly comprises a fixed seat (12) and a motor (13) mounted on the fixed seat (12), an output end of the motor (13) is connected with an eccentric swinging head (14), the rotating shaft (11) is connected with the eccentric swinging head (14), the motor (13) drives the eccentric swinging head (14) to rotate, and the piston cylinder main body (8) is driven by the rotating shaft (11) and the rotary table (10) to reciprocate in the vertical direction to realize compression and stretching.