TWI437165B - Structural improvement of piston valve body for diaphragm booster - Google Patents

Description

Improved piston valve body structure of diaphragm booster pump

The invention relates to the pressurized water discharge efficiency of the piston valve body in the diaphragm booster pump dedicated to reverse osmosis purification, in particular to a type which can prevent the diaphragm booster pump from losing pressure and reducing the supercharging efficiency. The piston valve body structure is improved.

As shown in the first to sixth figures, it is a conventional diaphragm type booster pump 1 for a reverse osmosis water filter, comprising: a motor 10, one at the end of the output shaft (not shown) of the motor 10. The upper cover body 11 is provided with a plurality of screw holes 12 at the periphery of the upper cover body 11; a plurality of pendulums pivotally mounted in the upper cover body 11 and driven by the output shaft of the motor 10 and converted into an axial reciprocating motion a wheel 13; a diaphragm piece 20 disposed on the upper cover body 11; a piston valve body 30 embedded in the diaphragm piece 20; a check rubber pad 40 and a pressure plate attached to the piston valve body 30 The upper cover 50 and the like are formed by a plurality of screw holes 12 of the upper cover body 11 and the corresponding through holes 51 of the upper cover 50, and are jointly combined by the bolts 2 (as shown in FIG. 6).

The peripheral edge of the diaphragm 20 is provided with a sealing groove 21, and a plurality of convex portions 22 are respectively protruded with respect to the positions of the balance wheels 13, and a piston pushing block 23 is superposed on each of the convex portions 22. And Each of the piston push block 23 and the boss portion 22 is respectively provided with through holes 231 and 221 of the same central axis, and after the screws 24 pass through the through holes 231 and 221 respectively, the diaphragm piece 20 and each piston push block 23 can be pushed. At the same time, the balance wheel 13 is screwed on the balance wheel 13 (as shown in FIG. 6), so that the diaphragm piece 20 and each piston push block 23 can synchronously generate the axial reciprocating displacement effect with the balance wheel 13 (as shown in the sixth figure). The imaginary line is shown).

As shown in the second and fourth to sixth figures, the piston valve body 30 is recessed with a semi-spherical grooved drain seat 31 toward the center of the upper cover 50, and a positioning hole is formed in the center of the drain seat 31. 32, the positioning hole 32 is centered at an interval of 120 degrees, each recess is provided with an isolation groove 33, and a plurality of drainage openings 34 are formed in the area between the isolation grooves 33, corresponding to each area The outer surface of the drain seat 31 of the drain port 34 is further provided with a plurality of water inlets 35, and each of the water inlets 35 is provided with an inverted horn piston piece 36 at the center thereof, and the horn piston piece 36 can be blocked. Each of the water inlets 35 is attached to the top surface of the drain seat 31 of the piston valve body 30, and is an integrally formed soft elastic hollow hemisphere having a positioning post 41 protruding from the center of the bottom. A rib 42 is disposed at an angle of 120 degrees from the center of the surface, and a convex plate 43 is protruded outwardly from the outer peripheral surface of each rib 42 to be inserted into the drain by the positioning post 41. Positioning hole 32 of 31 to And synchronously embedding the convex plates 43 in the isolation grooves 33, so that the outer peripheral hemispherical surface of the entire anti-reverse pad 40 completely closes the drain opening 34 of each area on the drainage seat 31 (as shown in the fourth figure). Illustrated, wherein the anti-reverse pad 40 is formed with a low-pressure water chamber 3 (as shown in FIG. 6) between each drain port 34 on the drain seat 31 and the piston push block 23 of the diaphragm piece 20, The other end of each of the low-pressure water chambers 3 is connected to the water inlet 35; the outer surface of the upper cover 50 is provided with a water inlet hole 52, a water outlet hole 53 (as shown in the second and sixth figures) and the number a perforation 51, and a bottom-shaped groove 54 is formed in the bottom of the inner edge surface, so that the combined outer edge of the diaphragm piece 20 and the piston valve body 30 can be closely attached to the stepped groove 54. Further, a center of the inner surface of the upper cover 50 is provided with a circular groove 55, and the bottom of the annular groove 55 is pressed against the outer edge surface of the drain seat 31 of the piston valve body 30, so that the inner side of the annular groove 55 The space between the wall and the drain seat 31 of the piston valve body 30 surrounds a high pressure water chamber 4 (as shown in Figure 6).

Referring to the seventh figure, when the tap water W first enters from the water inlet hole 52 of the upper cover 50 (as indicated by the arrow in the seventh figure), it enters the low pressure water chamber 3 through the water inlet 35 of the piston valve body 30. Since the piston pusher 23 is in the reciprocating axial direction of the balance wheel 13, the tap water W in the low pressure water chamber 3 is simultaneously squeezed to increase the water pressure to between 80 psi and 100 psi, so that the tap water after the boosting is performed. Nao Jing Jing The drain port 34 of the drain seat 31 flows into the high pressure water chamber 4, and then exits the diaphragm booster pump 1 through the water outlet hole 53 of the upper cover 50, and flows into the filter membrane tube of the reverse osmosis water filter. In the case of not shown, the effect of performing reverse osmosis filtration is achieved; however, when the diaphragm booster pump 1 is used for a period of time, the anti-adhesive pad 40 of the piston valve body 30 is designed to be hemispherical and covered at each time. The opening 34 is actuated by the opening and closing valves which alternate with each other, so that each of the water outlets 34 will affect the same when it alternately pressurizes the drainage to push the respective portions of the anti-reverse pads 40. The closing effect of the anti-reverse pad 40 corresponding to the position of the adjacent drain port 34, especially when each of the anti-reverse pads 40 is actuated for a period of time, further increases the amount of deformation δ due to aging of the material. As shown in the third figure, finally, the situation that the respective drain ports 34 cannot be completely closed occurs, thereby reducing the overall pressurized output water volume and the output pressure, and reducing the supercharged drain output of the entire diaphragm booster pump 1. Efficiency, this is the conventional reverse osmosis filtration The diaphragm booster pump is in use for some time (about three to six months), there will be "loss of pressure" and "boost output displacement reduce" the main reason.

In order to improve the aforementioned defects, the inventors of the present invention obtained specific solutions after research and development, and proposed US invention patent No. 11/258027 and Korea on October 26, 2005 and October 24, 2006, respectively. The application of the invention patent No. 10-2006-0103513, the structure of which is shown in the eighth to twelfth drawings, is mainly provided with the central drain seat 61 of the diaphragm booster pump 1 in the direction of the upper cover 50 in the piston valve body 60. In the planar shape, a positioning block 62 is protruded from the center of the top surface of the drainage seat 61, and a positioning hole 63 is formed in the center of the positioning block 62, and each of the positioning blocks 62 is spaced at an angle of 120 degrees. There are a plurality of drain ports 64, and a plurality of water inlets 65 are formed on the outer surface of the drain seat 61 corresponding to the drain ports 64 of the respective regions, and each of the water inlets 65 has an inverted horn piston piece 36 at the center thereof. The horn piston piece 36 can block the water inlets 65. The damper pad 70 is also provided with a planar multi-lobed blade shape that completely covers the drain seat 61, and is further opened between the blades. a slit gap 71 is provided, so that each of the flaps can respectively cover each water inlet 65 on the drain seat 61 correspondingly to the fitting resistance, and a positioning port 72 is disposed in the center of the anti-reverse pad 70, and A ring of positioning ring 73 is protruded downwardly from the bottom surface of the positioning port 72; when combined, the system first stops The positioning ring 73 of the rubber pad 70 faces the drain seat 61, and the positioning hole 72 is sleeved on the positioning block 62 in the center of the drain seat 61 of the piston valve body 60, and then the positioning of the T-shaped positioning post 80 is inserted into the positioning block 62. The hole 63, that is, the fixed combination of the anti-reverse pad 70 and the piston valve body 60 (as shown in the ninth and tenth views).

Further, as shown in FIG. 11 and FIG. 12, when the balance wheels 13 in the diaphragm booster pump 1 actuate to push the diaphragm 20 in turn, the tap water W is first entered by the water inlet hole 52 of the upper cover 50 (eg, The arrow in the twelfth figure is further inserted into the low pressure water chamber 3 by the water inlet 65 of the piston valve body 60. Since the piston pusher 23 is in the reciprocating axial direction of the balance wheel 13, the low pressure is simultaneously squeezed. The tap water W in the water chamber 3 is increased in water pressure to between 80 psi and 100 psi, so that the tap water after boosting can push the blade of the anti-reverse pad 70 on the drain port 64 and flow through the drain port 64. Up to the high pressure water chamber 4, and finally discharged out of the pressure pump through the water outlet hole 53 of the upper cover 50, therefore, the water flow from the water inlets 65 of each zone will continuously enter the various zones on the drainage seat 61 in a reciprocating manner. The water outlets enable the blades on the anti-reverse pad 70 to alternately actuate the opening and closing of the upper and lower pressures, and indeed achieve the effect of opening or closing the drainage ports 64 of the respective zones, thereby achieving improved water leakage and pressure loss. The lack of, as well as the growth of the anti-reverse pad 70.

The structure of the piston valve body 60 and the anti-reverse pad 70 is improved. After the actual mold opening test, although the effect of reducing the pressure loss and increasing the displacement is achieved, the inventor does not satisfy this. Under the same horsepower output condition, it still has not reached 100% comprehensive and does not lose pressure at all, and believes that it can be upgraded again. The room for improvement in overall boost efficiency.

The main object of the present invention is to provide an "improvement of the structure of a piston valve body of a diaphragm type booster pump" which is attached to the top surface of the drain seat of the piston valve body and is formed in an inward direction with the center of the positioning hole as the lowest point. The concave arc surface, at the same time, the contact surface of each water inlet seat and each piston piece is also the lowest point of the center of the positioning hole, and is also provided with an inward concave curved surface; when the positioning block of the anti-reverse pad After being embedded in the positioning hole of the drain seat, a gap is formed between the bottom surface of the anti-reverse pad and the concave arc surface of the top surface of the drain seat, and the positioning posts of the piston pieces are respectively embedded in the water inlet seat. After the positioning hole is located, a gap is formed between the bottom surface of each of the piston pieces and the concave arc surface of the water inlet hole; and the anti-reverse pad and the piston piece can be formed by the action of the gaps. Under the action of the piston push block, a stronger adsorption force is generated, and the overall supercharging efficiency can be greatly improved.

Another object of the present invention is to provide an "improvement of the structure of a piston valve body of a diaphragm type booster pump" in which the anti-reverse pad and each piston piece are designed to have a thick central portion but a thin edge. The strength of the force is better than that of the conventional flat structure with the same thickness from the center to the edge, and each blade and each piston on the anti-reverse pad can be activated under each interactive opening and closing operation. The film can be surely achieved close to the drainage hole and the water inlet hole. Therefore, the present invention can completely eliminate the "pressure loss" problem of the piston valve body in the conventional diaphragm type booster pump.

Another object of the present invention is to provide an "improvement of the structure of a piston valve body of a diaphragm type booster pump". Since the anti-reverse rubber pad in the piston valve body is a single component integrally formed, it will be more in the process of assembly. Knowing that the diaphragm booster pump is faster and more time-saving, it can greatly reduce the expenditure on production time and cost, and has more commercial competitiveness in economical production efficiency.

Referring to the thirteenth to sixteenth embodiments, the "pivot valve body structure improvement of the diaphragm type booster pump" of the present invention is the center of the center drain seat 101 of the piston valve body 100, with the center of the positioning hole 102. The bottom point is provided with a concave arc surface 107 (as shown in FIG. 14 and FIG. 15), and the contact surface of the piston piece 300 corresponding to each water inlet 104 is also used. The center of the positioning hole 105 is the lowest point and is provided with an inward concave curved surface 108 (as shown in FIG. 15), and the plug is placed in the central drain seat 101 of the piston valve body 100. The two members of the positioning post 201 are formed into a single component by integral molding with the same soft elastic material (as shown in FIG. 14A-a); wherein the top surface 202 of the anti-reverse pad 200 is formed into a convex circle. The curved surface, and the bottom surface 203 is disposed in a plane such that the thickness t1 between the central position of the top surface 202 and the bottom surface 203 is The thickness t2 between the outer peripheral top surface 202 and the bottom surface 203 is large (as shown in FIG. 15), and the top surface 302 of each of the piston sheets 300 is also provided with a convex arc surface, and the bottom surface 303 thereof is The thickness t3 between the central position of the top surface 302 and the bottom surface 303 is also greater than the thickness t4 between the outer peripheral top surface 302 and the bottom surface 303 (as in FIG. 14-b and Figure 15 shows).

Continuing with the sixteenth to eighteenth views, when the positioning post 201 of the anti-reverse pad 200 is embedded in the positioning hole 102 of the drain base 101, the bottom surface 203 of the anti-reverse pad 200 and the drain base 101 A gap G1 is formed between the concave curved surface 107 of the top surface (as shown in FIG. 16), and the positioning posts 301 of the respective piston pieces 300 are respectively embedded in the positioning holes 105 of the water inlets 104. After that, a gap G2 is formed between the bottom surface 303 of the piston piece 300 and the concave arc surface 108 of the water inlet hole 106 (as shown in FIG. 16); by the action of the gap G1 and the gap G2, When the anti-reverse pad 200 and the piston piece 300 are actuated by the piston push block 23, a stronger adsorption force is generated, and the first pressurization operation in the low-pressure water chamber 3 of the diaphragm type booster pump 1 is performed. The overall boosting efficiency of the second boosting operation in the high-pressure water chamber 4 will have a more substantial improvement effect, so that the purpose of "improving the boosting efficiency" can be achieved, and at the same time, due to the anti-reverse pad 200 and the respective piston pieces 300 is a structural design with a thick central but thin edge. Therefore, the strength of the force is better than that of the conventional flat structure having the same thickness from the center to the edge, and each blade on the anti-reverse pad 200 can be operated under each interactive opening and closing operation. And each of the piston plates 300 can surely achieve the effect of tightly abutting against the drainage hole 103 and the water inlet hole 106 (as shown in the seventeenth and eighteenth drawings). Therefore, the present invention can increase the conventional diaphragm type. The "pressure loss" problem of the piston valve body 30 in the pressure pump 1 is completely eliminated; further, since the anti-reverse pad 200 is a single component integrally formed in the present invention, it is more conventionally known in the assembly process. The pressure pump 1 is faster and more time-saving, thereby greatly reducing the expenditure on production time and cost, and is more economical and productive for the mass-produced diaphragm type booster pump products.

According to another embodiment of the present invention, the bottom surface of the anti-reverse pad 200 is further provided with an inward concave concave surface 204, and the piston piece 300 is further illustrated. The bottom surface is also provided with an inwardly concave concave surface 304 (as shown in FIG. 19) such that both the concave curved surface 204 of the anti-reverse pad 200 and the concave curved surface 107 of the top surface of the drainage seat 101 are The gap G3 formed between the gaps G3 is larger, and the gap G4 formed between the concave curved surface 304 of the piston piece 300 and the concave curved surface 108 of the water inlet hole 106 is also larger (as shown in FIG. 20). In turn, the anti-reverse pad 200 and the piston piece 300 can be pushed by the piston block. Under the action of 23, the generated adsorption force is more powerful, and the overall boosting efficiency will also achieve a greater improvement effect.

1‧‧‧Separate booster pump

2‧‧‧ bolt

3‧‧‧Low pressure water room

4‧‧‧High pressure water room

10‧‧‧ motor

11‧‧‧Upper cover

12‧‧‧ screw holes

13‧‧‧ balance wheel

20‧‧‧ Diaphragm

21‧‧‧ Sealing groove

22‧‧ ‧ raised parts

23‧‧‧Piston push block

24‧‧‧ screws

30, 60, 100‧‧‧ piston valve body

31, 61, 101‧‧‧drain

32, 63, 102, 105‧‧‧ positioning holes

33‧‧‧Isolation groove

34, 64‧‧ ‧ drain

35, 65‧‧‧ water inlet

36‧‧‧ horn piston

40, 70, 200‧‧‧ anti-reverse pad

41, 201, 301‧‧ ‧ positioning column

42‧‧‧ Ribs

43‧‧‧ convex plate

50‧‧‧Upper cover

51, 221, 231‧ ‧ perforation

52‧‧‧ water inlet hole

53‧‧‧Water outlet

54‧‧‧ stepped slot

55‧‧‧ring groove

62‧‧‧ Positioning block

71‧‧‧ gap

72‧‧‧ Positioning port

73‧‧‧ positioning ring

80‧‧‧T-shaped positioning column

103‧‧‧Drainage holes

104‧‧‧ into the water seat

106‧‧‧Water inlet

107, 108, 204, 304‧‧‧ concave curved surface

202, 302‧‧‧ top

203, 303‧‧‧ bottom

300‧‧‧ piston disc

G1, G2, G3, G4‧‧‧ gap

T1, t2, t3, t4‧‧‧ thickness

Δ‧‧‧ deformation

W‧‧‧ tap water

The first picture: is a perspective exploded view of a conventional diaphragm type booster pump.

Second figure: is a perspective view of a conventional piston valve body and a check rubber pad.

The third figure is a three-dimensional schematic diagram of the deformation of the conventional anti-reverse pad.

Figure 4: A plan exploded cross-sectional view of a conventional piston valve body and a check rubber pad.

Fig. 5 is a plan sectional view showing a conventional piston valve body and a check rubber pad.

Figure 6: A partial cross-sectional view of a combination of a conventional piston valve body and an upper cover.

Figure 7: Schematic diagram of the operation of the sixth picture.

Figure 8 is an exploded perspective view of another conventional piston valve body and a check rubber pad.

Figure 9 is a plan exploded cross-sectional view of another conventional piston valve body and a check rubber pad.

Figure 10 is a plan sectional view showing another conventional piston valve body and a check rubber pad.

Figure 11 is a partial cross-sectional view showing another conventional piston valve body and a combination of a check rubber pad and an upper cover.

Figure 12: Schematic diagram of the operation of the eleventh figure.

Thirteenth Diagram: A perspective exploded view of the present invention and a conventional diaphragm type booster pump.

Figure 14 is a perspective exploded view of the present invention.

Figure 14 - a: is a cross-sectional view of line 14a-14a in Figure 14.

Figure 14 - b: is a cross-sectional view of line 14b-14b in Figure 14.

Fifteenth Figure: is a plan sectional exploded view of the present invention.

Figure 16 is a plan sectional view of the present invention.

Figure 17 is a partial cross-sectional view showing the combination of the present invention and a conventional upper cover.

Figure 18: Schematic diagram of the operation of Figure 17.

Fig. 19 is a plan sectional exploded view showing another embodiment of the present invention.

Fig. 20 is a plan sectional view showing another embodiment of the present invention.

101‧‧‧Drainage seat

102‧‧‧Positioning holes

200‧‧‧Reverse rubber pad

103‧‧‧Drainage holes

104‧‧‧ into the water seat

105‧‧‧Positioning holes

106‧‧‧Water inlet

107‧‧‧ concave curved surface

201, 301‧‧‧ positioning column

202, 302‧‧‧ top

203, 303‧‧‧ bottom

300‧‧‧ piston disc

Claims (4)

The invention relates to an improved structure of a piston valve body of a diaphragm type booster pump, characterized in that: a top surface of a central drain seat of the piston valve body is provided with an inward concave curved surface with a center point of a positioning hole as a lowest point, and The water inlets on the outer periphery of the central drain seat are respectively attached to the contact surfaces of the piston pieces corresponding to the respective ones, and the inward concave grooves are also set at the lowest point of the center of the positioning holes, and the plugs are placed The two components of the anti-reverse rubber pad and the positioning post in the central drain seat of the piston valve body are integrally formed into a single component by the same soft elastic material, and the bottom surface of the anti-reverse rubber pad and each piston piece are flattened. Forming, after the anti-reverse rubber plug is embedded in the top surface of the central drain seat of the piston valve body, a gap is formed between the bottom surface of the anti-reverse rubber pad and the top surface of the central drain seat, and each piston piece After the plugs are embedded in the surface of the water inlet seat corresponding to the piston valve body, a gap is formed between the bottom surface of each piston piece and the surface of each water inlet seat corresponding thereto. The piston valve body structure of the diaphragm type booster pump according to claim 1 is improved, wherein the top surface of the anti-reverse rubber pad is further provided with a convex arc surface, so that the center position and the bottom surface of the top surface The thickness between them is greater than the thickness between the top and bottom surfaces of the outer periphery. The piston valve body structure of the diaphragm type booster pump according to claim 1 is improved, wherein the top surface of each of the piston pieces is further provided with a convex arc surface, and the bottom surface thereof is provided with a plane, so that Central location of the top The thickness between the bottom surface and the bottom surface is greater than the thickness between the top surface and the bottom surface of the outer periphery. The piston valve body structure of the diaphragm type booster pump according to claim 1 or 2 or 3, wherein the bottom surface of the anti-reverse rubber pad is further provided with an inward concave curved surface, and the pistons The bottom surface of the sheet is also provided with an inwardly curved surface.