Damping Method of Diaphragm Booster Pump

Abstract

The invention relates to a vibration damping method for a diaphragm booster pump. The diaphragm booster pump includes a motor and a pump head cover. The pump head cover is arranged on the motor. An eccentric cam is connected to the output shaft of the motor. The eccentric cam is provided with a balance wheel seat, a pump head seat, a diaphragm, a piston push block and a piston valve body in sequence from bottom to top, and a shortened swing moment damping unit is arranged between the pump head seat and the diaphragm. Shortening the swing moment damping unit can reduce the magnitude of the balance wheel torque on the piston action area, and then achieve the effect of reducing noise on the diaphragm booster pump. The shortened swing moment damping unit shortens the piston action area The length of the force arm subjected to the balance wheel moment is realized to reduce the size of the balance wheel moment on the piston action area.

Description

technical field [0001] The invention relates to a vibration damping method, in particular to a diaphragm booster pump applied to a reverse osmosis water filter, which can greatly reduce the vibration intensity of the pump body during operation, so that the pump body can be installed on the reverse osmosis water filter. After the casing is installed, the pump body will not vibrate strongly with the casing, thereby eliminating the shock-absorbing method that emits high-decibel noise. Background technique [0002] As we all know, diaphragm booster pumps used in reverse osmosis water filters have been widely used by people because of their excellent performance, and related technologies have also been recorded in the following patent documents, such as U.S. Patent Nos. 4396357, 4610605, 5476367, Nos. 5571000, 5615597, 5626464, 5649812, 5706715, 5791882, 5816133, 6089838, 6299414, 6604909, 6840745 and 6892624, etc., summarize their structural characteristics, such as Figure 1 to...

AI Technical Summary

Problems solved by technology

[0004] like Figure 12 to Figure 14 As shown, there has been a serious shortcoming in the aforementioned conventional diaphragm booster pump for a long time. When it is actuated, the three balance wheels 52 will push up the piston action area 73 of the diaphragm 70 in turn, which is equal to that of the diaphragm 70. On the three piston actuation areas 73 positions on the bottom surface of 70, an upward active force F (such as Figure 13 shown), the force F multiplied by the moment generated by the arm length L1 between the sealing groove convex strip 71 and the positioning convex ring 75 (that is, moment = F×L1), will cause the entire pump body to vibrate, When the rotation speed of the output shaft 11 of the motor 10 is as high as 700-1200 rpm, the intensity of the "vibration" generated by the three balance wheels 52 in turn remains high all the time

[0005] Therefore, conventional diaphragm booster pumps are all equipped with a base 100 (such as Figure 14 As shown), a pair of rubber damping pads 102 are respectively set on the two side wings 101 of the base 100, and then the base 100 is fixed on the shell C of the reverse osmosis water filter with fixing screws 103 and nuts 104; however, the actual Using the two pairs of rubber damping pads 102 on the wings 101 on both sides of the base 100 to achieve shock absorption is quite limited, because the "vibration" generated by the action of the pump body is extremely strong, and it will still cause the shell C to resonate and emit An annoying sound. In addition, the water pipe P connected to the pump head cover 20 on the water outlet hole 22 will also shake synchronously with the frequency of "vibration" (such as Figure 14 (shown by the imaginary line P in ) and slaps other components in the adjacent reverse osmosis water purifier. If it is used for a period of time, the water pipe P and its pipe joint will gradually become loose due to shaking, and finally It will lead to water leakage. Many of the above defects are caused by the "vibration" generated by the operation of the diaphragm booster pump. How to greatly reduce the "vibration" caused by the operation of the diaphragm booster pump has indeed become quite urgent. Issues to be solved

Images