A diaphragm piston compound pump
A composite pump and piston technology, applied in the field of composite pumps, can solve the problems of wear of piston cylinder liner, restriction of pump output pressure, easy damage of diaphragm, etc., so as to prolong the service life, facilitate processing and installation, and solve the effect of easy leakage.
Active Publication Date: 2016-04-27
刘子良
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Problems solved by technology
[0002] As we all know, there are two kinds of pumps commonly used in the market at present. One is the diaphragm pump. Because the diaphragm of the ordinary diaphragm pump must be elastic, the pumping pressure is severely restricted. If the pumping pressure is too large, the diaphragm will It is very easy to be damaged; the other is the piston pump. The existing piston pump has a large pumping pressure, but due to its inherent characteristics, it is easy to wear the piston and cylinder liner during operation, which makes the pump leak. Therefore above-mentioned two kinds of pumps all have some defects, can not satisfy people's use requirement well
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[0016] refer to figure 1 with figure 2 , a diaphragm-piston composite pump, including a pump casing 1 containing an inner cavity. As a preferred embodiment of the present invention, the pump casing 1 includes a pump upper casing 11 and a lower casing 12, which facilitates the processing and compounding of the pump casing 1 For the installation of the pump, the pump casing 1 is provided with a suction port and a discharge port. The suction port and the discharge port are convenient for the compound pump to be connected with the external delivery pipeline. There is an eccentric shaft 2 that can swing up, down, left, and right. The eccentric shaft 2 can be driven by an external motor to rotate. During the rotation process, the eccentric shaft 2 will repeatedly swing up and down. Ball bearing 20, the outer surface of the ball bearing 20 is connected with two or more joint bearings 3 in the circumferential direction, the joint bearing 3 can eliminate the left and right swing of t...
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The invention discloses a diaphragm and piston composite pump which comprises a pump shell with an inner cavity, and an eccentric shaft. A ball bearing is arranged on the outer surface of the eccentric shaft, two or more joint bearings are circumferentially connected on the outer surface of the ball bearing, the top halves of the joint bearings are sequentially connected with a diaphragm piece and a piston in a sleeved manner from bottom to top, and the joint bearings drive the diaphragm piece and the piston to move up or down simultaneously. The diaphragm piece and the piston are arranged in the inner cavity of the pump shell from to bottom to top, and big pressure can be output by mainly depending on the compression action of the piston while the diaphragm piece below the piston bears very small pressure, so that the diaphragm piece is less prone to damages; the diaphragm piece can function in sealing, so that the defect that existing piston pumps are prone to leakage, and requirements in use of people are met; and a decompression device is further arranged on the diaphragm and piston composite pump, so that the diaphragm piece is guaranteed not be broken and damaged due to overlarge pressure in the pump.
Description
technical field [0001] The invention relates to a pump, in particular to a composite pump containing a diaphragm and a piston. Background technique [0002] As we all know, there are two kinds of pumps commonly used in the market at present. One is the diaphragm pump. Because the diaphragm of the ordinary diaphragm pump must be elastic, the pumping pressure is severely restricted. If the pumping pressure is too large, the diaphragm will It is very easy to be damaged; the other is the piston pump. The existing piston pump has a large pumping pressure, but due to its inherent characteristics, it is easy to wear the piston and cylinder liner during operation, which makes the pump leak. Therefore above-mentioned two kinds of pumps all have some defects, can not satisfy people's use requirement well. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a compound pump with simple structure, high pumping pres...
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IPC IPC(8): F04B23/10F04B53/00
Inventor 刘子良
Owner 刘子良