Diaphragm pump
The utility model discloses a diaphragm pump which comprises a pump body, a buffer assembly is arranged on the pump body, the buffer assembly comprises a middle cover plate, an upper cover plate and a buffer diaphragm, the upper cover plate is located above the middle cover plate, the middle cover p...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a diaphragm pump which comprises a pump body, a buffer assembly is arranged on the pump body, the buffer assembly comprises a middle cover plate, an upper cover plate and a buffer diaphragm, the upper cover plate is located above the middle cover plate, the middle cover plate is arranged on the pump body, a first groove and a second groove are formed in the opposite ends of the upper cover plate and the middle cover plate respectively, and the buffer diaphragm is arranged in the first groove. The first groove and the second groove can jointly form a containing cavity, a buffer diaphragm is placed in the containing cavity, an adjusting screw rod is embedded in the buffer diaphragm, the other end of the adjusting screw rod penetrates through the upper cover plate and is in threaded connection with a nut, the adjusting screw rod is sleeved with a spring, and the two ends of the spring are connected with the upper cover plate and the buffer diaphragm respectively. When the adjusting sc |
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