TWM492963U - Improved balance wheel structure of diaphragm pump with four booster cavities - Google Patents

Description

Improvement of the balance structure of the four-pressure diaphragm pump

This creation is related to the installation of a four plenum diaphragm pump in a reverse osmosis purification, or in a recreational vehicle, and in particular to a four-press chamber. When the diaphragm pump is actuated, the rounded top surface of the cylindrical balance wheel improves the balance of the diaphragm on the bottom surface of the diaphragm, and greatly improves the tolerance and extension of the diaphragm to withstand the high frequency pushing effect of the cylindrical balance. The life of the entire four plenum diaphragm pump.

The four-charged-cavity diaphragm pump currently used in the reverse osmosis water filter and the bath and kitchen water supply equipment in the travel car, in addition to being disclosed, for example, in U.S. Patent No. 6,840,745, is similar to the U.S. Patent No. 6,840,745 and is similar to A conventionally used four-please diaphragm pump structure, as shown in FIGS. 1 to 10, is composed of a motor 10, a motor front cover 30, a tilting eccentric cam 40, a balance wheel seat 50, and a pump head. The seat 60, a diaphragm piece 70, a four-piston push block 80, a piston valve body 90 and a pump head cover 20 are combined; wherein a bearing 31 is embedded in the center of the motor front cover 30, and is passed through the output shaft 11 of the motor 10. a ring-shaped upper convex ring 32 is protruded upwardly from the outer periphery thereof, and a plurality of fixed through holes 33 are formed on the inner edge surface and the outer edge surface of the upper convex ring 32; a shaft hole 41 is inserted through the center of the inclined eccentric cam 40; The sleeve 10 can be sleeved on the output shaft 11 of the motor 10; the center of the base of the balance seat 50 is embedded with a balance bearing 51, which can be placed on the inclined eccentric cam 40, and the top surface of the seat is equidistant between Four cylindrical balance wheels 52 are arranged in the outer arrangement, and a horizontal hole 53 of each cylindrical balance 52 is concavely provided with a threaded hole 54 , and a circle of positioning annular groove 55 is further recessed on the periphery of the threaded hole 54 . The horizontal top surface 53 and the vertical side surface 56 intersect with a rounded corner 57. The pump head base 60 is sleeved on the upper convex ring 32 of the motor front cover 30, and the top surface thereof is provided. Four actuating perforations 61 are equally spaced and larger than the outer diameters of the four cylindrical balances 52 of the balance wheel housing 50, so that the four cylindrical balance wheels 52 can be placed in the four actuating perforations 61, and the bottom surface thereof is provided with a downward The lower ring 62 is circled, and the dimension of the lower ring 62 is the same as that of the upper ring 32 of the motor front cover 30, and the top surface of the outer periphery is directed downward toward the convex ring 62, and then a plurality of fixings are provided. a perforation 63; the diaphragm 70 is placed on the top surface of the pump head holder 60, and is formed by semi-rigid elastic material. The outermost peripheral edge of the outer circumference is provided with two annularly opposite outer convex strips 71 and convex portions. The strip 72 is radiated from the central portion of the top surface by four ribs 73 connected to the inner rib 72 so that the four ribs 73 and the inner rib 72 are spaced apart There are four piston actuating zones 74, and each piston actuating zone 74 corresponds to the position of the threaded hole 54 of the top surface of each cylindrical balance 52 in the balance wheel housing 50, and each has a central perforation 75, and is located at each A circular positioning convex block 76 (shown in FIGS. 8 and 9) is protruded from the bottom surface of the diaphragm 70 of the central perforation 75; the four-piston pushing block 80 is placed in the four piston actuating regions 74 of the diaphragm 70, respectively. A stepped hole 81 is formed in each of the piston push blocks 80, and the four positioning convex ring blocks 76 on the bottom surface of the diaphragm piece 70 are respectively inserted into the positioning ring grooves 55 of the four cylindrical balance wheels 52 of the balance wheel seat 50. Then, after the fixing screw 1 is inserted into the stepped hole 81 of the piston pushing block 80 and passes through the central through hole 75 of the four piston actuating regions 74 of the diaphragm 70, the diaphragm piece 70 and the four-piston pushing block 80 can be screwed. It is fixed in the threaded hole 54 of the four-cylinder balance 52 in the balance wheel seat 50 (as shown in an enlarged view in FIG. 10); a ring-shaped rib 91 is protruded downwardly from the outer peripheral side of the bottom of the piston valve body 90. The gap between the outer rib 71 and the inner rib 72 in the diaphragm 70 is inserted into the diaphragm 70, and a top surface thereof is concave toward the center of the pump head cover 20 Drainage circular seat surface 92, and the drain seat in A positioning hole 93 is formed in the center of the 92, and a T-shaped anti-reverse rubber pad 94 can be inserted and fixed, and the positioning holes 93 are spaced at an angle of 90 degrees. Each of the drainage holes 95, and the outer surface of the drainage seat 92 corresponding to the four regional drainage holes 95, are respectively connected with four water inlets 96 which are arranged at an angle of 90 degrees and each of which has an opening downward, at each entrance. The water seat 96 is further provided with a plurality of water inlet holes 97, and an inverted T-shaped piston piece 98 is disposed in the center of each water inlet seat 96. The piston piece 98 can block the water inlet holes 97. The drainage holes 95 in the four areas of the drain seat 92 are respectively connected to the corresponding four water inlet seats 96, and the ring protrusions 91 at the bottom of the piston valve body 90 are plugged into the convexity of the diaphragm piece 70. After the gap between the strip 71 and the inner rib 72, a closed plenum chamber 26 can be formed between each of the water inlet 96 and the top surface of the diaphragm 70 (see FIG. 10 and its enlarged view). The pump head cover 20 is disposed on the pump head base 60, and has a water inlet 21, a water outlet 22 and a plurality of fixed perforations 23 on the outer peripheral surface thereof, and has an inner peripheral surface. The bottom ring is provided with a stepped groove 24, so that the combined outer edge of the diaphragm piece 70 and the piston valve body 90 are adhered to the stepped groove 24 (as shown in an enlarged view in FIG. 10). In addition, a ring convex ring 25 is disposed at the center of the inner edge surface, and the bottom of the convex ring 25 is pressed against the outer edge surface of the drain seat 92 of the piston valve body 90, so that the inner wall surface of the convex ring 25 is Between the drain seats 92 of the piston valve body 90, a high pressure water chamber 27 (shown in FIG. 10) can be formed, respectively, through the fixing bolts 2 through the respective fixed through holes 23 of the pump head cover 20, and through the pump head holder 60. After each fixed through hole 63 is screwed together with the nut 3 placed in each fixed through hole 33 in the motor front cover 30, the combination of the entire four plenum diaphragm pump can be completed (as shown in FIG. 1 and FIG. 10). Show).

As shown in FIG. 11 and FIG. 12, it is the operation mode of the above-mentioned conventional four-pressure chamber diaphragm pump. When the output shaft 11 of the motor 10 rotates, the tilting eccentric cam 40 is rotated, and at the same time, the balance wheel housing 50 is The four cylindrical balance wheels 52 sequentially generate an up and down reciprocating motion, and the diaphragm 70 The four piston actuation zones 74 are also actuated by the ups and downs of the four cylindrical balances 52, which are sequentially pushed up and down to produce a repeated up and down displacement, so that when the cylindrical balance 52 is actuated downward Simultaneously pulling down the piston actuating area 74 of the diaphragm 70 and the piston pushing block 80, so that the piston piece 98 of the piston valve body 90 is pushed open, and the tap water W from the water inlet hole 21 of the pump head cover 20 is passed through the water inlet hole 97, And entering the plenum chamber 26 (as indicated by the arrow W in FIG. 11 and its enlarged view); when the cylindrical balance 52 is pushed up, the piston actuation zone 74 and the piston of the diaphragm 70 are simultaneously synchronized. The push block 80 is topped up, and the water in the pressurizing chamber 26 is squeezed to increase the water pressure to between 100 psi and 150 psi, so that the boosted high pressure water Wp can stop the drain on the drain seat 92. The rubber pad 94 is pushed open, and continuously flows into the high-pressure water chamber 27 through the drain holes 95 of the drain seat 92, and then exits the four-pressure chamber diaphragm pump through the water outlet hole 22 of the pump head cover 20 (see FIG. 12). And the arrow Wp in its enlarged view), which in turn provides the reverse osmosis filtration required for the RO membrane tube in the reverse osmosis water filter Water pressure, or a vehicle traveling bath room kitchen supply equipment required output water pressure.

As shown in FIG. 13 and FIG. 14, when the above four plenum diaphragm pump is actuated, four The cylindrical balance 52 is pushed by the rotation of the tilting eccentric cam 40, and also moves up to each of the piston actuating regions 74 of the diaphragm sheet 70, which is equal to the position of the four piston actuating regions 74 on the bottom surface of the diaphragm 70. The upward force F is continuously applied, and each time the bottom surface of the diaphragm 70 is pushed up by the force F, the downward rebound force Fs is synchronously generated, and the magnitude distribution of the force acts on each piston. The diaphragm 70 of the actuating region 74 (as indicated by the distribution arrow of the resizing force Fs of each size in Fig. 14) causes the bottom surface of the diaphragm 70 at the position of the four piston actuating regions 74 to be squeezed. Wherein, the bottom surface position P of the diaphragm piece 70 which is in contact with the horizontal top surface 53 and the round corner 57 in the cylindrical balance 52 is subjected to the maximum degree of compression (as shown in FIG. 14), and therefore, the motor 10 of the output shaft 11 speed up to 800-1200 rpm, each of the diaphragm 70 The bottom surface position P of the plug actuation zone 74 is subjected to at least four compressions per second, and at such a high frequency of the number of extrusions, the bottom surface position P of the diaphragm 70 is the earliest position where the crack occurs. It also causes the whole four plenum diaphragm pump to no longer operate normally and reduce the main reason for its service life. Therefore, how to eliminate the bottom surface of the diaphragm actuation region 74 of the diaphragm 70 is caused by the high frequency pushing and pushing of the cylindrical balance 52. The lack of rupture has become an urgent issue to be solved.

The main purpose of this creation is to provide a "four-pressure chamber diaphragm pump balance structure" The improvement is to set a region on the horizontal top surface of each of the cylindrical balance wheels in the balance wheel to the vertical side surface to form a downward slope, so that the motor output shaft of the four-pressure diaphragm pump After the rotation, when the four cylindrical balance wheels are rotated by the inclined eccentric cam to push up the bottom surface of the diaphragm of the piston actuation region, the upward force will cause the diaphragm to be positioned between the convex ring and the outer convex strip in the diaphragm. The body is in an upwardly inclined state, and by positioning the annular groove on the horizontal top surface of each cylindrical balance to the downward slope of the vertical side surface, the diaphragm piston supported in the oblique state can be completely flattened at the same time. The bottom surface of the actuating area does not cause squeezing and squeezing of the bottom surface of the diaphragm piston working area, so that the rounding of the cylindrical balance wheel in the conventional four plenum diaphragm pump can be completely eliminated, and the diaphragm piston operating area is completely eliminated. The high frequency extrusion on the bottom surface causes the lack of easy rupture, which can greatly improve the tolerance of the diaphragm to the high frequency pushing effect of the cylindrical balance, and effectively extend the service life of the entire four plenum diaphragm pump.

Another object of the present invention is to provide a "four-charge chamber diaphragm pump balance structure" The improvement is to set a region on the horizontal top surface of each of the cylindrical balance wheels in the balance wheel to the vertical side surface to form a downward slope, so that the motor output shaft of the four-pressure diaphragm pump After the rotation, the four cylindrical balance wheels are rotated by the inclined eccentric cam to push up the diaphragm bottom of the piston actuation area. In the case of the surface, the upward force causes the diaphragm piece between the positioning cam ring and the outer rib in the diaphragm to be in an upwardly inclined state, and the annular top surface is positioned on the horizontal top surface of each of the cylindrical balance wheels. The downward slope of the groove to the vertical side surface can be completely flatly supported on the bottom surface of the diaphragm piece in the diagonally pulled state without causing squeezing and squeezing of the diaphragm bottom surface of the diaphragm piece, so that the diaphragm piece is subjected to After the upward force, the synchronous rebound force is greatly reduced, so the working current load and the working temperature of the motor can be effectively reduced, and the lubricating oil in the motor bearing does not cause high temperature evaporation, resulting in poor lubrication. The lack of this, in addition to ensuring that all the bearings in the diaphragm booster pump are running smoothly, and reducing the power and electricity expenses due to the reduced operating current of the motor, and at the same time, have multiple benefits such as extending the service life of the entire diaphragm booster pump.

1‧‧‧ fixing screws

2‧‧‧ fixing bolts

3‧‧‧ nuts

10‧‧‧ motor

11‧‧‧Output shaft

20‧‧‧ pump head cover

21‧‧‧ Inlet

22‧‧‧Water outlet

23, 33, 63 ‧ ‧ fixed perforation

24‧‧‧ stepped trough

25‧‧‧ convex ring

26‧‧‧Booster chamber

27‧‧‧High pressure water room

30‧‧‧Motor front cover

31‧‧‧ bearing

32‧‧‧Upper convex ring

40‧‧‧Slanted eccentric cam

41‧‧‧Axis hole

50,500‧‧‧wheel seat

51‧‧‧balance bearing

52, 502‧‧ ‧ cylindrical balance wheel

53, 503‧‧‧ horizontal top

54,514‧‧‧Threaded holes

55, 505, 515‧‧‧ positioning ring groove

56‧‧‧Vertical side faces

57‧‧‧round

58,508, 526‧‧‧ downward slope

60‧‧‧ pump head

61‧‧‧Actuation perforation

62‧‧‧Under convex ring

70‧‧‧ Diaphragm

71‧‧‧Outer ribs

72‧‧‧ inside ribs

73‧‧‧ ribs

74‧‧‧Piston action zone

75‧‧‧Central perforation

76‧‧‧ positioning convex ring block

80‧‧‧Piston push block

81‧‧‧step hole

90‧‧‧ piston valve body

91‧‧‧ ring ribs

92‧‧‧Drainage seat

93‧‧‧Positioning holes

94‧‧‧Reverse rubber pad

95‧‧‧Drainage holes

96‧‧‧Water inlet

97‧‧‧ water inlet hole

98‧‧‧Pneumatic blades

506, 522‧‧‧Inwardly inclined side faces

511‧‧‧Cylinder seat

512‧‧‧ positioning plane

513‧‧‧ convex cylinder

521‧‧‧balance ring

523‧‧‧Upper hole

524‧‧‧Medium hole

525‧‧‧lower hole

F‧‧‧force

Fs‧‧‧Rebound force

P‧‧‧ bottom position

W‧‧‧ tap water

Wp‧‧‧High pressure water

Figure 1: is a three-dimensional combination of the conventional four-pressure diaphragm pump.

Figure 2: An exploded perspective view of a conventional four-pressure chamber diaphragm pump.

Figure 3: is a perspective view of a cylindrical balance wheel in a conventional four-pressure diaphragm pump.

Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3.

Figure 5: is a perspective view of a pump head seat in a conventional four-bore diaphragm pump.

Figure 6 is a cross-sectional view taken along line 6-6 of Figure 5. .

Figure 7 is a perspective view of a diaphragm in a conventional four-bore diaphragm pump.

Figure 8: Sectional view of line 8-8 in Figure 7

Figure 9 is a bottom view of a diaphragm in a conventional four-bore diaphragm pump.

Figure 10 is a cross-sectional view taken along line 10-10 of Figure 1.

Figure 11: One of the schematic diagrams of the operation of the conventional four-pressure diaphragm pump.

Figure 12: The second schematic diagram of the operation of the conventional four-pressure diaphragm pump.

Figure 13: The third schematic diagram of the operation of the conventional four-pressure diaphragm pump.

Figure 14 is an enlarged view of view a in Figure 13.

Figure 15 is a perspective exploded view of the first embodiment of the present invention installed in a conventional four-pressure chamber diaphragm pump.

Figure 16 is a perspective view of the first embodiment of the present creation.

Figure 17 is a cross-sectional view taken along line 17-17 of Figure 16.

Figure 18 is a cross-sectional view showing the first embodiment of the present invention installed in a conventional four-pressure chamber diaphragm pump.

Fig. 19 is a schematic view showing the operation of the first embodiment of the present creation.

Figure 20: is an enlarged view of view a in Figure 19.

Fig. 21 is a schematic cross-sectional view showing the first embodiment of the present invention and the cylindrical balance wheel of the conventional four-pressure chamber diaphragm pump respectively actuating the diaphragm.

Figure 22 is a perspective view showing a second embodiment of the present creation.

Figure 23 is a cross-sectional view taken along line 23-23 of Figure 22.

Figure 24 is a cross-sectional view of a second embodiment of the present invention installed in a conventional four-pressure chamber diaphragm pump.

Figure 25 is a schematic view showing the operation of the second embodiment of the present creation.

Figure 26: is an enlarged view of view a in Figure 25.

Fig. 27 is a schematic cross-sectional view showing the second embodiment of the present invention and the cylindrical balance wheel of the conventional four-pressure chamber diaphragm pump respectively actuating the diaphragm.

Figure 28 is an exploded perspective view showing another embodiment of the cylindrical balance in the second embodiment of the present invention.

Figure 29 is a cross-sectional view taken along line 29-29 of Figure 28.

Figure 30 is a perspective assembled view of another embodiment of the cylindrical balance in the second embodiment of the present invention.

Figure 31 is a cross-sectional view taken along line 31-31 of Figure 30.

Figure 32 is a cross-sectional view showing another embodiment of the cylindrical balance in the second embodiment of the present invention mounted on a conventional four-pressure chamber diaphragm pump.

Fig. 33 is a schematic view showing the operation of another embodiment of the cylindrical balance in the second embodiment of the present invention, which is mounted on a conventional four-pressure chamber diaphragm pump.

Figure 34: is an enlarged view of view a in Figure 33.

Fig. 35 is a cross-sectional view showing a comparison of another embodiment of the cylindrical balance wheel in the second embodiment of the present invention and a cylindrical balance wheel in the conventional four-pressure chamber diaphragm pump respectively for pushing the diaphragm.

As shown in FIG. 15 to FIG. 18, the first embodiment of the "four-compression diaphragm pump balance structure improvement" is the horizontal top surface 53 of each cylindrical balance 52 of the balance wheel housing 50. The upper positioning ring groove 55 to the vertical side surface 56 is provided with a downward slope 58.

As shown in FIG. 19 to FIG. 21, in the first embodiment of the above-described "improvement of the balance structure of the four-charged diaphragm pump", the four cylindrical balance wheels 52 are rotated by the tilting eccentric cam 40 to push up the piston. After the bottom surface of the diaphragm 70 of the actuating portion 74, the upward force F causes the diaphragm body between the positioning ring block 76 and the outer rib 71 in the diaphragm 70 to be inclined upwardly by the cylinder. A downward inclined surface 58 for positioning the annular groove 55 to the vertical side surface 56 on the horizontal top surface 53 of the balance wheel 52 can be completely flush contact and supported on the bottom surface of the piston actuation region 74 of the diaphragm sheet 70 in the diagonally pulled state. There is no phenomenon that the bottom surface of the diaphragm 70 actuation region 74 is crushed (as shown in FIGS. 19 and 20), and the rebound force Fs generated by the diaphragm 70 is also greatly reduced ( As shown by the arrow distribution of the resilience force Fs of each size in FIG. 20, it is known that the repulsive force Fs generated by the diaphragm 70 is greatly reduced by comparing it with the reversing force Fs of each size in FIG. ), therefore, by positioning the circle on the horizontal top surface 53 of the present cylindrical balance 52 Concave The downward slope 58 of the groove 55 to the vertical side surface 56 can completely eliminate the rounding 57 of the cylindrical balance 52 in the conventional four-pressure diaphragm pump, and the high-frequency squeezing of the bottom surface of the diaphragm 70 operating region 74 The pressure is caused by the susceptibility to breakage (as shown by the imaginary line portion in Fig. 21), and has the effect of greatly reducing the rebound force Fs when the diaphragm 70 is subjected to the upward force F, so that the diaphragm 70 It can greatly improve the tolerance of the high-frequency pushing action of the cylindrical balance wheel 52, and can effectively reduce the working current load and working temperature of the motor, and thus the lubricating oil in the motor bearing will not cause high-temperature evaporation and lead to poor lubrication. The lack of noise generation, in addition to ensuring smooth operation of all the bearings in the diaphragm booster pump, reduces the cost of electricity and electricity due to the reduced operating current of the motor, and at the same time has the multiple benefits of extending the service life of the entire diaphragm booster pump. The present invention is installed on a conventional four-pressure diaphragm pump and the measured results show that the operating temperature of the motor 10 can be reduced by at least 15 ° C, the operating current can be reduced by more than 1 amp, and the diaphragm 70 And the life of the entire four-bore diaphragm pump can be increased by more than two times.

As shown in Figure 22 to Figure 24, this is the creation of the balance structure of the four-charged diaphragm pump. The second embodiment of the modified embodiment is to increase the diameter of each of the cylindrical balances 502 in the balance wheel holder 500, but still smaller than the inner diameter of the actuating perforations 61 in the pump head block 60, and to provide a side surface thereof. The side edges 506 are inclined inwardly, and the area of the horizontal top surface 503 of each of the cylindrical balances 502 that is positioned to the annular groove 505 to the inwardly inclined side surface 506 is provided as a downward slope 508.

Continued as shown in Fig. 25 to Fig. 27, the above-mentioned "four plenum diaphragm pump balance" When the second embodiment is actuated, when the four cylindrical balance wheels 502 are rotated by the inclined eccentric cam 40 to push up the bottom surface of the diaphragm 70 of the piston actuation region 74, the upward force F thereof will cause the diaphragm 70 to be in the diaphragm 70. The diaphragm body between the positioning collar block 76 and the outer rib 71 produces an upwardly inclined state by which the annular groove 505 is positioned on the horizontal top surface 503 of the cylindrical balance 502 to the inwardly inclined side surface 506. of The downward slope 508 can be completely flatly contacted and supported on the bottom surface of the diaphragm sheet 70 in the diagonally pulled state without causing squeezing and squeezing of the bottom surface of the piston actuation region 74 of the diaphragm 70 (see FIG. 25 and FIG. 26), and the rebound force Fs generated by the diaphragm 70 is also greatly reduced (as indicated by the arrow distribution of each size rebound force Fs in FIG. 26), and the side surface 506 is inclined inward. The design structure can be avoided by the cylindrical balance wheel 502 when the diameter of the cylindrical balance wheel 502 is increased, and it can avoid hitting the wall surface of the hole of the pumping head 61 in the pump head seat 60. The annular groove 505 is positioned on the horizontal top surface 503 to the downward slope 508 of the inwardly inclined side surface 506, except that the rounded corner 57 of the cylindrical balance 502 in the conventional four-pressure diaphragm pump can be completely eliminated. The bottom surface of the 70-piston actuation zone 74 is devoid of the defect of the squeezing squeezing (as shown by the imaginary line portion in Fig. 27), and has the effect of substantially reducing the rebound force Fs when the diaphragm 70 is subjected to the upward force F. So that the diaphragm 70 can greatly improve the high frequency pushing of the cylindrical balance 502 The tolerance of the action, which in turn effectively extends the service life of the entire four-bore diaphragm pump. In addition, since the diameter of the cylindrical balance 502 is increased, the area of the downward inclined surface 508 is also increased, so that the area of the bottom surface of the diaphragm sheet 70 which is in contact with the obliquely pulled state can be increased during the operation (as shown in FIG. 27). A shows), and increases the support of the rebound force Fs, thereby reducing the degree of influence of the diaphragm 70 on the rebound force Fs, and also prolonging the service life of the diaphragm 70.

As shown in Fig. 28 to Fig. 31, the above-mentioned creation "the balance of the four plenum diaphragm pump" In the second embodiment, each of the cylindrical balance wheels 502 can be changed by a cylindrical seat 511 and a balance ring 521, wherein a circumferential plane is provided on the outer peripheral surface of the cylindrical seat 511. 512, and a convex cylinder 513 is convexly disposed on the top surface, and a concave hole 514 is defined in a central portion of the top surface of the convex cylinder 513. The balance ring 521 is sleeved on the cylindrical seat 511, and the outer peripheral surface thereof is disposed. The side surface 522 is inclined inwardly, and an upper hole 523 and an intermediate step are formed in the center of the top surface toward the bottom surface. The hole 524 and the lower hole 525 have a larger diameter than the outer diameter of the convex cylinder 513 in the cylindrical seat 511. The inner diameter of the middle hole 524 is the same as the outer diameter of the convex cylinder 513 in the cylindrical seat 511. The inner diameter of the hole 525 is the same as the outer diameter of the cylindrical seat 511, and the area from the upper step hole 523 to the inwardly inclined side surface 522 is set as a downward slope 526, and the balance ring 521 is placed on the cylindrical seat 511. A positioning annular groove 515 (shown in FIGS. 30 and 31) may be formed between the convex cylinder 513 and the upper stepped hole 523.

Continuing with FIG. 32 to FIG. 35, the balance ring 521 is fitted to the cylindrical seat 511. Then, the four positioning convex ring blocks 76 on the bottom surface of the diaphragm piece 70 are respectively inserted into the positioning ring grooves 515 of the four cylindrical balance wheels 502 in the balance wheel base 500, and then inserted into the piston by the fixing screws 1 After the stepped hole 81 of the block 80 passes through the central through hole 75 of the four piston actuating regions 74 of the diaphragm 70, the diaphragm piece 70 and the four-piston push block 80 can be screwed to the four-cylinder balance wheel in the balance wheel holder 500 at the same time. The threaded hole 514 of the cylindrical seat 511 of 502 (shown in an enlarged view in FIG. 32); when the output shaft 11 of the motor 10 rotates, the four cylindrical balance wheels 502 are rotated by the tilting eccentric cam 40 to push up the piston. When the bottom surface of the diaphragm 70 of the region 74, the upward force F causes the diaphragm body between the positioning ring block 76 and the outer rib 71 in the diaphragm 70 to be in an upwardly inclined state, by the cylindrical pendulum The positioning annular groove 515 of the balance ring 521 of the wheel 502 and the downward inclined surface 526 of the inwardly inclined side surface 522 can be completely flush contact and supported on the bottom surface of the diaphragm sheet 70 in the diagonally pulled state. The phenomenon that the crucible is not pressed against the bottom surface of the diaphragm 70 (as shown in FIGS. 33 and 34), and the diaphragm 70 is synchronously produced. The rebound force Fs will also be greatly reduced (as shown by the arrow distribution of each size rebound force Fs in FIG. 34), and the design structure of the inwardly inclined side surface 522 will still be increased due to the diameter of the cylindrical balance 502. After that, when it is actuated to push up and displace, it can avoid hitting the wall surface of the hole of the pumping head 60 to actuate the through hole 61. Therefore, in addition to completely eliminating the collapse of the cylindrical balance 502 in the conventional four-pressure diaphragm pump. The rounded corner 57 produces a defect in the underside of the diaphragm 70, as shown by the imaginary line portion in Fig. 35, and still has a diaphragm After the sheet 70 is subjected to the upward force F, the synergistic effect of the rebound force Fs is greatly reduced, so that the diaphragm 70 can greatly improve the tolerance of the high-frequency pushing effect of the cylindrical balance 502, thereby effectively extending the entire four-pressurization. The service life of the cavity diaphragm pump is the same as that of the second embodiment described above, and the balance ring 521 having the inwardly inclined side surface 522 and the downward slope 526 must be taken into consideration during manufacture. The feasibility of the membrane is made separately from the balance wheel holder 500, which saves the manufacturing cost, and the cylindrical seat 511 can be integrally formed with the balance wheel holder 500, and then the two are combined into a cylindrical pendulum. Wheel 502, therefore, this structural design is fully compatible with industrial mass production and overall manufacturing cost savings.

In summary, this creation uses the simplest cylindrical balance wheel to improve the service life of the diaphragm in the four-please diaphragm pump, and the service life of the entire four-pressure diaphragm pump is also increased. More than twice the original, very highly industrially usable and practical, and in line with the requirements of the patent, is to apply according to law.

50‧‧‧wheel seat

51‧‧‧balance bearing

52‧‧‧Cylindrical balance wheel

53‧‧‧ horizontal top surface

54‧‧‧Threaded holes

55‧‧‧ positioning ring groove

56‧‧‧Vertical side faces

58‧‧‧ downward slope

Claims (3)

The "four-compressed diaphragm pump balance wheel structure improvement" includes: a motor; a motor front cover, the inner part of which is embedded with a bearing, and is inserted by the output shaft of the motor, and a circle is formed on the outer circumference. a convex ring, and a plurality of fixed perforations are provided on the inner edge surface and the outer edge surface of the upper convex ring; a tilting eccentric cam has a shaft hole penetrating through the center thereof and is sleeved on the output shaft of the motor; The wheel base has a pendulum wheel bearing embedded in the center of the bottom and is sleeved on the inclined eccentric cam. The top surface of the seat body is equidistantly spaced and arranged with four cylindrical balance wheels, and the horizontal top surface of each cylindrical balance wheel a threaded hole is defined in the recess, and a ring of positioning ring groove is further recessed on the periphery of the threaded hole; a pump head seat is sleeved on the upper convex ring of the motor front cover, and the top surface thereof is provided with four The actuating perforations are equally spaced and larger than the outer diameters of the four cylindrical balance wheels in the balance wheel seat, so that the four cylindrical balance wheels can be placed in the four actuating perforations, and the bottom surface is provided with a downward convex ring. The dimension of the lower convex ring is the same as that of the upper convex ring of the motor front cover, and is close to the outer circumference. The surface is convex downwardly, and then several fixed perforations are provided; a diaphragm piece is placed on the top surface of the pump head seat, and is formed by semi-rigid elastic material, and the outermost peripheral edge is provided with two rings on the top surface. The outer ribs and the inner ribs are oppositely opposed to each other, and four ribs connected to the inner rib are radiated from a central position of the top surface, so that the four ribs and the inner rib are There are four piston actuating zones spaced apart, and each piston actuating zone corresponds to the threaded hole position of the top surface of each cylindrical balance in the balance wheel seat, and each has a central perforation and a diaphragm located at each central perforation. The bottom surface of the sheet is convexly provided with a ring of positioning convex ring blocks; the four piston push blocks are respectively placed in the four piston actuating regions of the diaphragm piece, and each stepped hole of the piston push block is provided with a stepped hole, and the bottom surface of the diaphragm piece is four The positioning convex ring blocks are respectively inserted into the positioning ring grooves of the four cylindrical balance wheels in the balance wheel seat, and then inserted into the stepped holes of the piston push block by the fixing screws, and pass through the four piston actuating areas in the diaphragm piece. After the central perforation, the diaphragm piece and the four-piston push block can be screwed to the pendulum at the same time. Four cylindrical seat of the wheel balance threaded hole; a piston valve, based on a diaphragm disposed sleeve, an outer peripheral edge of the bottom side is provided with a downwardly projecting a ring-shaped rib, which can be inserted into a gap between the outer rib and the inner rib in the diaphragm, and a circular drain seat having a concave curved surface at a central position facing the pump head cover, and is disposed on the drain seat The center is provided with a positioning hole for a T-shaped anti-reverse rubber pad to be inserted and fixed, and four drainage holes are formed in each of the four regions formed by the positioning holes at an angle of 90 degrees. And on the outer surface of the drainage seat corresponding to the drainage holes of the four areas, four water inlets which are arranged at an angle of 90 degrees and whose openings are facing downward are respectively connected, and several water inlets are respectively arranged on each water inlet seat. a water inlet hole, and an inverted T-shaped piston piece is disposed in the center of each water inlet seat; and a pump head cover is disposed on the pump head seat, and the diaphragm piece and the piston valve body are covered, The edge surface is provided with a water inlet, a water outlet and a plurality of fixed perforations, and the bottom ring of the inner edge surface is provided with a stepped groove, and the outer edge of the composite surface of the diaphragm piece and the piston valve body can be superposed on each other. a stepped groove, and a ring of convex rings at the center of the inner edge surface; the feature is: the pendulum Each seat balance cylindrical positioning annular groove to the horizontal plane perpendicular to the top surface of the side edge region is provided with a downward slope. As described in the scope of claim 1, the "four-pressurized diaphragm pump balance structure improvement", wherein the diameter of each cylindrical balance in the balance seat is changed, but still smaller than the movement in the pump head seat An inner diameter of the perforation, and the side surface thereof is provided with an inwardly inclined side surface, and an area of the annular top surface of the cylindrical balance wheel is positioned to the inwardly inclined side surface Beveled down. As described in the second aspect of the patent application, "the structure of the balance of the four-pressure diaphragm pump is improved", wherein each of the cylindrical balances is changed to be composed of a cylindrical seat and a balance ring, wherein a circumferential positioning surface of the cylindrical seat is provided with a positioning plane, and a convex cylinder is convexly protruded from the top surface, and a concave hole is formed in a central portion of the top surface of the convex cylinder; the balance ring is sleeved on the cylindrical seat The outer peripheral surface is formed to be inclined inwardly to the side surface, and the upper end hole, the middle step hole and the lower step hole are mutually penetrated in the direction of the bottom surface from the center of the top surface, wherein the upper hole has a larger aperture than the cylindrical seat The outer diameter of the convex cylinder, the inner diameter of the middle hole is the same as the outer diameter of the convex cylinder in the cylindrical seat, the inner diameter of the lower hole is the same as the outer diameter of the cylindrical seat, and the upper side hole is inclined to the inner side surface. The area is set to a downward slope, so that the balance ring is placed behind the cylindrical seat, and a positioning annular groove can be formed between the convex cylinder of the cylindrical seat and the upper hole of the balance ring.